MiniRAE 3000 User's Guide PDF

MiniRAE 3000 User’s Guide Physical Description The main components of the portable VOC monitoring instrument include: Three keys for user to interact with the instrument: 3 operation/programming keys for normal operation or programming LCD display with back light for direct readout and calculated measurements Built-in flashlight for illuminating testing points in dark environments Buzzer and red LEDs for alarm signaling whenever exposures exceed preset limits Charge contacts for plugging directly to its charging station Gas entry and exit ports USB communication port for PC interface Protective rubber cover Specifications Size: 9.25" L x 3.6" W x 2.9" H Weight: 28 oz with battery pack Detector: Photoionization sensor with 9.8, 10.6, or 11.7 eV UV lamp Battery: A 4.2V/3300mAH rechargeable Lithium-Ion battery pack (snap in, field replaceable, at non-hazardous location only) Alkaline battery holder (for 4 AA batteries) Battery Charging: Less than 8 hours to full charge Operating Hours: Up to16 hours continuous operation Display: Large dot matrix screen with backlight 11 MiniRAE 3000 User’s Guide Measurement range & resolution Lamp Range Resolution 10.6 eV 0.1 ppm to 15,000 ppm 0.1 ppm 9.8 eV 0.1 ppm to 5,000 ppm 0.1 ppm 11.7 eV 0.1 ppm to 2,000 ppm 0.1 ppm Response time (T90): 2 seconds Accuracy 10 to 2000 ppm: ±3% at calibration point. (Isobutylene): PID Detector: Easy access to lamp and sensor for cleaning and replacement Correction Factors: Over 200 VOC gases built in (based on RAE Systems Technical Note TN-106) Calibration: Two-point field calibration of zero and standard reference gases Calibration Reference: Store up to 8 sets of calibration data, alarm limits and span values Inlet Probe: Flexible 5" tubing Radio module: Bluetooth (2.4GHz), RF module (433MHz, 868MHz , 915MHz, or 2.4GHz) Keypad: 1 operation key and 2 programming keys; 1 flashlight switch Direct Readout: Instantaneous, average, STEL, TWA and peak value, and battery voltage Intrinsic Safety: US and Canada: Class I, Division 1, Group A, B, C, D Europe: ATEX (II 1G EEx ia IIC T4) IECEx (Ex ia IIC T4) EM Interference: Highly resistant to EMI/RFI. Compliant with EMC R&TTE (RF Modules) 12 MiniRAE 3000 User’s Guide Alarm Setting: Separate alarm limit settings for Low, High, STEL and TWA alarm Operating Mode: Hygiene or Search mode Alarm: Buzzer 95dB at 30cm and flashing red LEDs to indicate exceeded preset limits, low battery voltage, or sensor failure Alarm Type: Latching or automatic reset Real-time Clock: Automatic date and time stamps on datalogged information Datalogging: 260,000 points with time stamp, serial number, user ID, site ID, etc. Communication: Upload data to PC and download instrument setup from PC via USB on charging station. Sampling Pump: Internally integrated. Flow rate: 450 to 550 cc/min. Temperature: -20º C to 50º C (-4º to 122º F) Humidity: 0% to 95% relative humidity (non- condensing) Housing (including Polycarbonate, splashproof and dustproof rubber boot): Battery can be changed without removing rubber boot. 13 MiniRAE 3000 User’s Guide Charging The Battery Always fully charge the battery before using the instrument. The instrument’s Li-ion battery is charged by placing the instrument in its cradle. Contacts on the bottom of the instrument meet the cradle’s contacts, transferring power without other connections. Note: Before setting the instrument into its charging cradle, visually inspect the contacts to make sure they are clean. If they are not, wipe them with a soft cloth. Do not use solvents or cleaners. Follow this procedure to charge the instrument: 1. Plug the AC/DC adapter’s barrel connector into the instrument’s cradle. 2. Plug the AC/DC adapter into the wall outlet. 3. Place the instrument into the cradle, press down, and lean it back. It locks in place and the LED in the cradle glow The instrument begins charging automatically. The “Primary” LED in the cradle blinks green to indicate charging. During charging, the diagonal lines in the battery icon on the instrument’s display are animated and you see the message “Charging...” When the instrument’s battery is fully charged, the battery icon is no longer animated and shows a full battery. The message “Fully charged!” is shown. The cradle’s LED glows continuously green. Note: If you see the “Battery Charging Error” icon (a battery outline with an exclamation mark inside), check that the instrument or rechargeable battery has been set into the cradle 14 MiniRAE 3000 User’s Guide properly. If you still receive the message, check the Troubleshooting section of this guide. Note: If the instrument or battery has been in the cradle for more than 10 hours and you see the “Battery Charging Error” icon and a message that says, “Charging Too Long,” this indicates that the battery is not reaching a full charge. Try changing the battery and make sure the contacts between the instrument (or battery) are meeting the cradle. If the message is still shown, consult your distributor or RAE Systems Technical Services. Charging A Spare Rechargeable Battery A rechargeable Li-ion battery can be charged when it is not inside the monitor. The charging cradle is designed to accommodate both types of charging. Contacts on the bottom of the battery meet the contacts on the cradle, transferring power without other connections, and a spring-loaded capture holds the battery in place during charging. 1. Plug the AC/DC adapter into the monitor’s cradle. 2. Place the battery into the cradle, with the gold-plated contacts on top of the six matching charging pins. 3. Plug the AC/DC adapter into the wall outlet. The battery begins charging automatically. During charging, the Secondary LED in the cradle blinks green. When charging is complete, it glows steady green. Release the battery from the cradle by pulling it back toward the rear of the cradle and tilting it out of its slot. Note: If you need to replace the Li-ion battery pack, replacements are available from RAE Systems. The part number is 059-3051-000. Note: An Alkaline Battery Adapter (part number 059-3052-000), which uses four AA alkaline batteries (Duracell MN1500 or Energizer E91), may be substituted for the Li-Ion battery. 15 MiniRAE 3000 User’s Guide WARNING! To reduce the risk of ignition of hazardous atmospheres, recharge and replace batteries only in areas known to be non-hazardous. Remove and replace batteries only in areas known to be non- hazardous. Low Voltage Warning When the battery’s charge falls below a preset voltage, the instrument warns you by beeping once and flashing once every minute, and the “empty battery” icon blinks on and off once per second. You should turn off the instrument within 10 minutes and either recharge the battery by placing the instrument in its cradle, or replace the battery with a fresh one with a full charge. Clock Battery An internal clock battery is mounted on one of the instrument’s printed circuit boards. This long-life battery keeps settings in memory from being lost whenever the Li-ion battery or alkaline batteries are removed. This backup battery should last approximately five years, and must be replaced by an authorized RAE Systems service technician. It is not user-replaceable. Data Protection While Power Is Off When the instrument is turned off, all the current real-time data including last measured values are erased. However, the datalog data is preserved in non-volatile memory. Even if the battery is disconnected, the datalog data will not be lost. 16 MiniRAE 3000 User’s Guide User Interface The instrument’s user interface consists of the display, LEDs, an alarm transducer, and four keys. The keys are: Y/+ MODE N/- Flashlight on/off The LCD display provides visual feedback that includes the reading, time, battery condition, and other functions. LEDs and flashlight Display Y/+ key N/- key MODE key Flashlight on/off key In addition to their labeled functions, the keys labeled Y/+, MODE, and N/- act as “soft keys” that control different parameters and make different selections within the instrument’s menus. From menu to 17 MiniRAE 3000 User’s Guide menu, each key controls a different parameter or makes a different selection. Three panes along the bottom of the display are “mapped” to the keys. These change as menus change, but at all times the left pane corresponds to the [Y/+] key, the center pane corresponds to the [MODE] key, and the right pane corresponds to the [N/-] key. Here are three examples of different menus with the relationships of the keys clearly shown: 18 MiniRAE 3000 User’s Guide Display The display shows the following information: Graph Graphic representation of concentration plotted over time Gas info Tells the Correction Factor and type of calibration gas Reading Concentration of gas as measured by the instrument Calibration needed Indicates that calibration should be performed Radio power Indicates whether radio connection is on or off Radio signal Indicates signal strength in 5-bar bargraph Battery Indicates battery level in 3 bars Pump Indicates that pump is working Datalog Indicates whether datalog is on or off Y/+ Y/+ key’s function for this screen MODE MODE key’s function for this screen N/- N/- key’s function for this screen 19 MiniRAE 3000 User’s Guide Operating The Instrument The instrument is designed as a broadband VOC gas monitor and datalogger for work in hazardous environments. It gives real-time measurements and activates alarm signals whenever the exposure exceeds preset limits. Prior to factory shipment, the instrument is preset with default alarm limits and the sensor is pre-calibrated with standard calibration gas. However, you should test the instrument and verify the calibration before the first use. After the instrument is fully charged and calibrated, it is ready for immediate operation. Turning The Instrument On 1. With the instrument turned off, press and hold [MODE]. 2. When the display turns on, release the [MODE] key. The RAE Systems logo should appear first. (If the logo does not appear, there is likely a problem and you should contact your distributor or RAE Systems Technical Support.) The instrument is now operating and performs self tests. If any tests (including sensor and memory tests fail), refer to the Troubleshooting section of this guide. Once the startup procedure is complete, the instrument shows a numerical reading screen with icons. This indicates that the instrument is fully functional and ready to use. 20 MiniRAE 3000 User’s Guide Turning The Instrument Off 1. Press and hold the Mode key for 3 seconds. A 5-second countdown to shutoff begins. 2. Once the countdown stops, the instrument is off. Release the Mode key. 3. When you see “Unit off...” release your finger from the [MODE] key. The instrument is now off. Note: You must hold your finger on the key for the entire shutoff process. If you remove your finger from the key during the countdown, the shutoff operation is canceled and the instrument continues normal operation. Operating The Built-In Flashlight The instrument has a built-in flashlight that helps you point the probe in dark places. Press the flashlight key to turn it on. Press it again to turn it off. Note: Using the flashlight for extended periods shortens the battery’s operating time before it needs recharging. Pump Status IMPORTANT! During operation, make sure the probe inlet and the gas outlet are free of obstructions. Obstructions can cause premature wear on the pump, false readings, or pump stalling. During normal operation, the pump icon alternately shows inflow and outflow as shown here: 21 MiniRAE 3000 User’s Guide During duty cycling (PID lamp cleaning), the display shows these icons in alternation: If there is a pump failure or obstruction that disrupts the pump, you will see this icon blinking on and off: If you see this blinking icon, consult the Troubleshooting section of this guide. Calibration Status The instrument displays this icon if it requires calibration: Calibration is required (and indicated by this icon) if: The lamp type has been changed (for example, from 10.6 eV to 9.8 eV). The sensor has been replaced. It has been 30 days or more since the instrument was last calibrated. If you have changed the calibration gas type without recalibrating the instrument. 22 MiniRAE 3000 User’s Guide Operating Modes Your instrument operates in different modes, depending on the model and its factory default settings. In some cases, you can change modes using a password and using the instrument’s navigation. In other cases, you must use ProRAE Studio software. The default setting for your instrument is: User Mode: Basic Operation Mode: Hygiene This is outlined in detail on page 74. The other options, covered later in this guide, are: User Mode: Advanced (page 78) Operation Mode: Hygiene User Mode: Advanced (page 82) Operation Mode: Search Using ProRAE Studio allows access to other options. In addition, Diagnostic Mode (page 83) is available for service technicians. 23 MiniRAE 3000 User’s Guide Basic User Level/Hygiene Mode (Default Settings) The instrument is programmed to operate in Basic User Level/Hygiene Mode as its default. This gives you the most commonly needed features while requiring the fewest parameter adjustments. Pressing [N/-] steps you from one screen to the next, and eventually return to the main display. If you do not press a key within 60 seconds after entering a display, the instrument reverts to its main display. Note: While viewing any of these screens, you can shut off your instrument by pressing [MODE]. 24 25 MiniRAE 3000 User’s Guide Note: Dashed line indicates automatic progression. MiniRAE 3000 User’s Guide After the instrument is turned on, it runs through the start-up menu. Then the message “Please apply zero gas…” is displayed. At this point, you can perform a zero air (fresh air) calibration. If the ambient air is clean, you can use that. Otherwise, use a cylinder of zero air. Refer to Zero Calibration on page 37 for a more detailed description of zero calibration. Start zero calibration by pressing Start. You see the message “Zeroing…” followed by a 30-second countdown. Note: You can press [MODE] to quit, bypassing the zero air calibration. When zero calibration is complete, you see the message: Zeroing is done! Reading = 0.0 ppm The instrument is now sampling and collecting data. Note: At the Average & Peak, Date & Time & Temperature, Calibration Gas & Measurement Gas & Correction Factor, and PC Communications screens, the instrument automatically goes to the main display after 60 seconds if you do not push a key to make a selection. Alarm Signals During each measurement period, the gas concentration is compared with the programmed alarm limits (gas concentration alarm limit settings). If the concentration exceeds any of the preset limits, the loud buzzer and red flashing LED are activated immediately to warn you of the alarm condition. In addition, the instrument alarms if one of the following conditions occurs: battery voltage falls below a preset voltage level, failure of the UV lamp, or pump stall. 26 MiniRAE 3000 User’s Guide Alarm Signal Summary Message Condition Alarm Signal HIGH Gas exceeds “High 3 beeps/flashes per second* Alarm” limit OVR Gas exceeds 3 beeps/flashes per second* measurement range MAX Gas exceeds electronics’ 3 beeps/flashes per second* maximum range LOW Gas exceeds “Low 2 beeps/flashes per second* Alarm” limit TWA Gas exceeds “TWA” 1 Beep/flash per second* limit STEL Gas exceeds “STEL” 1 Beep/flash per second* limit Pump Pump failure 3 beeps/flashes per second icon flashes Lamp PID lamp failure 3 beeps/flashes per second plus “Lamp” message on display Battery Low battery 1 flash, 1 beep per minute icon plus battery icon flashes on flashes display CAL Calibration failed, or 1 beep/flash per second needs calibration NEG Gas reading measures 1 beep/flash per second less than number stored in calibration * Hygiene mode only. In Search mode, the number of beeps per second (1 to 7) depends upon the concentration of the sampled gas. Faster rates indicate higher concentrations. 27 MiniRAE 3000 User’s Guide Preset Alarm Limits & Calibration The instrument is factory calibrated with standard calibration gas, and is programmed with default alarm limits. Cal Gas Cal unit Low High TWA STEL Span (Isobutylene) MiniRAE 100 ppm 50 100 10 25 3000 Testing The Alarm You can test the alarm whenever the main (Reading) display is shown. Press [Y/+], and the audible and visible alarms are tested. Integrated Sampling Pump The instrument includes an integrated sampling pump. This diaphragm-type pump that provides a 450 to 550 cc per minute flow rate. Connecting a Teflon or metal tubing with 1/8" inside diameter to the gas inlet port of the instrument, this pump can pull in air samples from 200' (61 m) away horizontally, or 90' (27.5 m) vertically, at about 3' (0.9 m) per second flow speed. Note: In Search Mode, the pump turns on when a sample measurement is started, and turns off when the sample is manually stopped. If liquid or other objects are pulled into the inlet port filter, the instrument detects the obstruction and immediately shuts down the pump. The alarm is activated and a flashing pump icon is displayed. You should acknowledge the pump shutoff condition by clearing the obstruction and pressing the [Y/+] key while in the main reading display to restart the pump. 28 MiniRAE 3000 User’s Guide Backlight The LCD display is equipped with an LED backlight to assist in reading the display under poor lighting conditions. Datalogging During datalogging, the instrument displays a disk icon to indicate that datalogging is enabled. The instrument stores the measured gas concentration at the end of every sample period (when data logging is enabled). In addition, the following information is stored: user ID, site ID, serial number, last calibration date, and alarm limits. All data are retained (even after the unit is turned off) in non-volatile memory so that it can be down- loaded at a later time to a PC. Datalogging event When Datalogging is enabled, measurement readings are being saved. These data are stored in “groups” or “events.” A new event is created and stored each time the instrument is turned on and is set to automatic datalogging, or a configuration parameter is changed, or datalogging is interrupted. The maximum time for one event is 24 hours or 28,800 points. If an event exceeds 24 hours, a new event is automatically created. Information, such as start time, user ID, site ID, gas name, serial number, last calibration date, and alarm limits are recorded. Datalogging sample After an event is recorded, the unit records a shorter form of the data. When transferred to a PC running ProRAE Studio, this data is arranged with a sample number, time, date, gas concentration, and other related information. 29 MiniRAE 3000 User’s Guide Auto/Manual/Snapshot Datalogging The instrument has three datalog types: Auto Default mode. Collects datalog information when the instrument is sampling. Manual Datalogging occurs only when the instrument’s datalogging is manually started (see page 63 for details). Snapshot Datalogs only during snapshot (single-event capture, initiated by pressing [MODE]) sampling. See page 65 for details. Note: You can only choose one datalog type to be active at a time. 30 MiniRAE 3000 User’s Guide Accessories The following accessories are included with the instrument: An AC Adapter (Battery Charger) Alkaline battery adapter External Filter Organic Vapor Zeroing kit Hard-case kits also include these accessories: Calibration adapter Calibration regulator and Flow controller Standard Kit & Accessories AC Adapter (Battery Charger) WARNING To reduce the risk of ignition of hazardous atmospheres, recharge battery only in area known to be non-hazardous. Remove and replace battery only in area known to be non-hazardous. Ne charger les batteries que dans emplacements designés non- dangereuses. A battery charging circuit is built into the instrument cradle. It only needs a regular AC to 12 VDC adapter (wall-mount transformer, part number 500- 0114-000) to charge the instrument. To charge the battery inside the instrument: 1. Power off the instrument. 2. Connect the AC adapter to the DC jack on the instrument’s cradle. If the instrument is off, it automatically turns on. 3. While charging, the display message shows “Charging.” The Primary LED on the cradle flashes green when charging. 4. When the battery is fully charged, the LED changes to glowing green continuously, and the message “Fully charged” appears on 31 MiniRAE 3000 User’s Guide the display. If there is a charging error, the LED glows red continuously. A completely discharged instrument can be charged to full capacity within 8 hours. Batteries drain slowly even if an instrument is off. Therefore, if the instrument has been in storage or has not been charged for several days or longer, check the charge before using it. The factory-supplied battery is designed to last for 16 hours of normal operation (no alarm), for a new battery under the optimum circumstances. As the battery becomes older or is subject to adverse conditions (such as cold ambient temperature), its capacity will be significantly reduced. Alkaline Battery Adapter An alkaline battery adapter is supplied with each instrument. The adapter (part number 059-3052-000) accepts four AA alkaline batteries (use only Duracell MN1500 or Energizer E91) and provides approximately 12 hours of operation. The adapter is intended to be used in emergency situations when there is no time to charge the Li- ion battery pack. To insert batteries into the adapter: 1. Remove the three Philips-head screws to open the compartment in the adapter. 2. Insert four fresh AA batteries as indicated by the polarity (+/-) markings. 3. Replace the cover. Replace the three screws. To install the adapter in the instrument: 1. Remove the Li-ion battery pack from the instrument by sliding the tab and tilting out the battery. 2. Replace it with the alkaline battery adapter 3. Slide the tab back into place to secure the battery adapter. IMPORTANT! Alkaline batteries cannot be recharged. The instrument’s internal circuit detects alkaline batteries and will not allow recharging. If you 32 MiniRAE 3000 User’s Guide place the instrument in its cradle, the alkaline battery will not be recharged. The internal charging circuit is designed to prevent damage to alkaline batteries and the charging circuit when alkaline batteries are installed inside the instrument. If you try to charge an alkaline batteries installed in the instrument, the instrument’s display will say, “Alkaline Battery,” indicating that it will not charge the alkaline batteries. Note: When replacing alkaline batteries, dispose of old ones properly. WARNING! To reduce the risk of ignition of hazardous atmospheres, recharge the battery only in areas known to be non-hazardous. Remove and replace the battery only in areas known to be non-hazardous. External Filter The external filter is made of PTFE (Teflon®) membrane with a 0.45 micron pore size to prevent dust or other particles from being sucked into the sensor manifold, which would cause extensive damage to the instrument. It prolongs the operating life of the sensor. To install the external filter, simply connect it to the instrument’s inlet tube. 33 MiniRAE 3000 User’s Guide Optional Accessories Calibration Adapter The calibration adapter for the instrument is a simple 6-inch Tygon tubing with a metal adapter on one end. During calibration, simply insert the metal adapter into the regular gas inlet probe of the instrument and the tubing to the gas regulator on the gas bottle. Calibration Regulator The Calibration Regulator is used in the calibration process. It regulates the gas flow rate from the Span gas cylinder into the gas inlet of the instrument during calibration process. The maximum flow rate allowed by the flow controller is about 0.5L/min (500 cc per min.). Alternatively, a demand-flow regulator or a Tedlar gas bag may be used to match the pump flow precisely. Organic Vapor Zeroing Kit The Organic Vapor Zeroing Kit is used for filtering organic air contaminants that may affect the zero calibration reading. To use the Organic Vapor Zeroing Kit, simply connect the filter to the inlet port of the instrument. 34 MiniRAE 3000 User’s Guide Standard Two-Point Calibration (Zero & Span) The following diagram shows the instrument’s calibrations in Basic/Hygiene mode. Note: Dashed line indicates automatic progression. 35 MiniRAE 3000 User’s Guide Entering Calibration 1. Press and hold [MODE] and [N/-] until you see the Password screen. 2. In Basic User Level, you do not need a password to perform calibrations. Instead of inputting a password, enter calibration by pressing [MODE]. Note: If you inadvertently press [Y/+] and change any of the numbers, simply press [MODE] and you will be directed to the calibration menu. The Calibration screen is now visible with Zero Calibration highlighted. These are your options: Press [Y/+] to select the highlighted calibration (Zero Calib or Span Calib). Press [MODE] to exit calibration and return to the main display and resume measurement. Press [N/-] to toggle the highlighted calibration type. 36 MiniRAE 3000 User’s Guide Zero (Fresh Air) Calibration This procedure determines the zero point of the sensor calibration curve. To perform a fresh air calibration, use the calibration adapter to connect the instrument to a “fresh” air source such as from a cylinder or Tedlar bag (optional accessory). The “fresh” air is clean, dry air without organic impurities and an oxygen value of 20.9%. If such an air cylinder is not available, any clean ambient air without detectable contaminants or a charcoal filter can be used. At the Zero Calibration menu, you can proceed to perform a Zero calibration or bypass Zero calibration and perform a Span calibration. You may also go back to the initial Calibration menu if you want to exit calibration. Press [Y/+] to start calibration. Press [MODE] to quit and return to the main calibration display. If you have pressed [Y/+] to enter Zero calibration, then you will see this message: 1. Turn on your Zero calibration gas. 2. Press [Y/+] to start calibration. Note: At this point, you may press [MODE] if you decide that you do not want to initiate calibration. This will take you directly to the Calibration menu, highlighted for Span calibration. 37 MiniRAE 3000 User’s Guide 3. Zero calibration starts a 30-second countdown and displays this message: Zeroing... During the zeroing process, the instrument performs the Zero calibration automatically and does not require any action on your part. Note: To abort the zeroing process at any time and proceed to Span calibration, press [N/-] at any time while zeroing is being performed. You will see a confirmation message that says “Zero aborted!” and then the Span calibration menu appears. When Zero calibration is complete, you see this message: Zeroing is done! Reading = 0.0 ppm The instrument will then show the Calibration menu on its display, with Span Calib highlighted. 38 MiniRAE 3000 User’s Guide Span Calibration This procedure determines the second point of the sensor calibration curve for the sensor. A cylinder of standard reference gas (span gas) fitted with a 500 cc/min. flow-limiting regulator or a flow-matching regulator is the simplest way to perform this procedure. Choose the 500 cc/min. regulator only if the flow rate matches or slightly exceeds the flow rate of the instrument pump. Alternatively, the span gas can first be filled into a Tedlar bag or delivered through a demand-flow regulator. Connect the calibration adapter to the inlet port of the instrument, and connect the tubing to the regulator or Tedlar bag. Another alternative is to use a regulator with >500 cc/min flow but allow the excess flow to escape through a T or an open tube. In the latter method, the span gas flows out through an open tube slightly wider than the probe, and the probe is inserted into the calibration tube. At the Span Calibration menu, you perform a Span calibration. You may also go back to the Zero calibration menu or to the initial Calibration menu if you want to exit calibration. Press [Y/+] to enter Span calibration. Press [N/-] to skip Span calibration and return to Zero calibration. Press [MODE] to exit Span calibration and return to the top calibration menu. If you have pressed [Y/+] to enter Span calibration, then you will see the name of your Span gas (the default is isobutylene) and the span value in parts per million (ppm). You will also see this message that prompts you: 1. Turn on your span calibration gas. 39 MiniRAE 3000 User’s Guide 2. Press [Y/+] to initiate calibration. Note: You may press [MODE] if you decide that you do not want to initiate calibration. This will abort the span calibration and take you directly to the Calibration menu for Zero calibration. 3. Span calibration starts and displays this message: Calibrating... During the Span calibration process, there is a 30-second countdown and the instrument performs the Span calibration automatically. It requires no actions on your part. Note: If you want to abort the Span calibration process, press [N/-] at any time during the process. You will see a confirmation message that says “Span is aborted!” and then the Zero calibration menu appears. You can then proceed to perform a Zero calibration, perform a Span calibration, or exit to the topmost Calibration menu. When Span calibration is complete, you see a message similar to this (the value is an example only): Span 1 is done! Reading = 100.0 ppm The instrument then exits Span calibration and shows the Zero calibration menu on its display. Note: The reading should be very close to the span gas value. 40 MiniRAE 3000 User’s Guide Exiting Two-Point Calibration In Basic User Level When you are done performing calibrations, press [MODE], which corresponds with “Back” on the display. You will see the following message: Updating settings… The instrument updates its settings and then returns to the main display. It begins or resumes monitoring. 41 MiniRAE 3000 User’s Guide Three-Point Calibration For enhanced accuracy, it is possible to perform a second Span calibration in addition to the Zero and Span calibrations outlined in the previous section. Your instrument first must be set to allow this third calibration. This requires using ProRAE Studio software and a PC, as well as a higher concentration of calibration gas. Note: Once the third calibration is set, you do not need to use ProRAE Studio to allow future 3-point calibrations. Also, you can only disable 3-point calibration capability by using ProRAE Studio again. Perform the Zero and Span calibrations. After the first Span calibration (Span 1) is completed, the display a second Span calibration (Span 2) can be performed. The process is identical to the first calibration. As in the Span 1 calibration, you may exit and return to the Zero calibration screen if you choose not to perform this calibration or to abort it. 42 43 MiniRAE 3000 User’s Guide Note: Dashed line indicates automatic progression. MiniRAE 3000 User’s Guide Span 2 Calibration A cylinder of standard reference gas (span gas) fitted with a 500 cc/min. flow-limiting regulator or a flow-matching regulator is the simplest way to perform this procedure. Note: This gas should be of a higher concentration than the gas used for Span 1 calibration. Choose the 500 cc/min. regulator only if the flow rate matches or slightly exceeds the flow rate of the instrument pump. Alternatively, the span gas can first be filled into a Tedlar bag or delivered through a demand-flow regulator. Connect the calibration adapter to the inlet port of the instrument, and connect the tubing to the regulator or Tedlar bag. Another alternative is to use a regulator with >500 cc/min flow but allow the excess flow to escape through a T or an open tube. In the latter method, the span gas flows out through an open tube slightly wider than the probe, and the probe is inserted into the calibration tube. At the Span Calibration menu, you perform a Span calibration. You may also go back to the Zero calibration menu or to the initial Calibration menu if you want to exit calibration. Press [Y/+] to enter Span 2 calibration. Press [N/-] to skip Span calibration and return to Zero calibration. Press [MODE] to exit Span calibration and return to the top calibration menu. If you have pressed [Y/+] to enter Span calibration, then you will see the name of your Span gas (the default is isobutylene) and the span value in parts per million (ppm). You will also see this message that prompts you: Please apply gas... 4. Turn on your span calibration gas. 44 MiniRAE 3000 User’s Guide 5. Press [Y/+] to initiate calibration. Note: You may press [MODE] if you decide that you do not want to initiate calibration. This will take you directly to the Calibration menu for Zero calibration. 6. Span calibration starts a 30-second countdown and displays this message: Calibrating... During the Span calibration process, the instrument performs the Span calibration automatically and does not require any action on your part. Note: If you want to abort the Span calibration process, press [N/-] at any time during the process. You will see a confirmation message that says “Span is aborted!” and then the Zero calibration menu will appear. You can then proceed to perform a Zero calibration, perform a Span calibration, or exit to the topmost Calibration menu. When Span calibration is complete, you will see a message similar to this (the value shown here is for example only): Span 2 is done! Reading = 1000 ppm The instrument then exits Span calibration and shows the Zero calibration menu on its display. Note: The reading should be very close to the span gas value. 45 MiniRAE 3000 User’s Guide Exiting Three-Point Calibration When you are done performing calibrations, press [MODE], which corresponds with “Back” on the display. You will see the following message: Updating settings… The instrument updates its settings and then returns to the main display. It begins or resumes monitoring. Programming Mode Programming Mode can be entered from either Hygiene Mode or Search Mode. If the current user mode is Basic, you must provide a 4- digit password to enter. Entering Programming Mode 1. Press and hold [MODE] and [N/-] until you see the Password screen. 2. Input the 4-digit password: Increase the number from 0 through 9 by pressing [Y/+]. Step from digit to digit using [N/-]. Press [MODE] when you are done. If you make a mistake, you can cycle through the digits by pressing [N/-] and then using [Y/+] to change the number in each position. 46 MiniRAE 3000 User’s Guide Note: The default password is 0000. When you have successfully entered Programming Mode, you see this screen: Note: The password can only be changed by connecting the instrument to a PC running ProRAE Studio software. Follow the instructions in ProRAE Studio to change it. 47 MiniRAE 3000 User’s Guide The Calibration label is shown and its icon is highlighted, but you can press [N/-] to step from one programming menu to the next, with the name of the menu shown at the top of the display and the corresponding icon highlighted. As you repeatedly press [N/-], the selection moves from left to right, and you see these screens: Note: When you reach Monitor Setup and press [N/-], the menu cycles back to Calibration. Programming Mode Menus The Programming Mode allows anyone with the password to change the instrument’s settings, calibrate the instrument, modify the sensor configuration, enter user information, etc. Programming Mode has five menus. Each menu includes several sub-menus to perform additional programming functions. This table shows the menus and sub-menus: 48 MiniRAE 3000 User’s Guide Calibration Measurement Alarm Datalog Monitor Setting Setup Zero Meas. Gas High Clear Op Mode Calibration Alarm Datalog Span Meas. Unit Low Interval Site ID Calibration Alarm STEL Data User ID Alarm Selection TWA Datalog User Mode Alarm Type Alarm Date Type Buzzer Time & Light Pump Duty Cycle Pump Speed Temperature Unit Language Radio Power Real Time Protocol Power On Zero Unit ID LCD Contrast 49 MiniRAE 3000 User’s Guide Once you enter Programming Mode, the LCD displays the first menu, Calibration. Each subsequent menu is accessed by pressing [N/-] repeatedly until the desired menu is displayed. To enter a sub-menu of a menu, press [Y/+]. Exiting Programming Mode To exit Programming Mode and return to normal operation, press [MODE] once at any of the programming menu displays. You will see “Updating Settings…” as changes are registered and the mode changes. Navigating Programming Mode Menus Navigating through the Programming Mode menus is easy and consistent, using a single interface format of “Select,” “Back” and “Next” at the top level. The three control buttons correspond to these choices as shown: Note: Pressing [MODE] in the Programming Mode’s top level causes the instrument to exit Programming Mode and return to monitoring. The three keys perform the following functions in Programming Mode: Key Function in Programming Mode [MODE]: Exit menu when pressed momentarily or exit data entry mode [Y/+]: Increase alphanumerical value for data entry or confirm (yes) for a question [N/-]: Provides a “no” response to a question 50 MiniRAE 3000 User’s Guide Calibration Two types of calibration are available: Zero (fresh air) and Span. Select Zero or Span Calibration by pressing [N/+]. Once your choice is highlighted, press [Y/+]. Zero Calibration The procedure for performing a zero calibration is covered on page 35. Span Calibration The procedure for performing a basic span calibration is covered on page 35. 51 MiniRAE 3000 User’s Guide Measurement The sub-menus for Measurement are Measurement Gas and Measurement Unit. Meas. Gas Measurement gases are organized in four lists: My List is a customized list of gases that you create. It contains a maximum of 10 gases and can only be built in ProRAE Studio on a PC and transferred to the instrument. Note: The first gas in the list is always isobutylene (it cannot be removed from the list). Last Ten is a list of the last ten gases used by your instrument. The list is built automatically and is only updated if the gas selected from Custom Gases or Library is not already in the Last Ten. This ensures that there is no repetition. Gas Library is a library that consists of all the gases found in RAE Systems’ Technical Note TN-106 (available online at www.raesystems.com). Custom Gases are gases with user-modified parameters. Using ProRAE Studio, all parameters defining a gas can be modified, including the name, span value(s), correction factor, and default alarm limits. 1. Scroll through each list by pressing [N/-]. 2. Press [Y/+] to select one (My List, Last Ten, Gas Library, or Custom Gases). 52 MiniRAE 3000 User’s Guide 3. Once you are in one of the categories, press [N/-] to scroll through its list of options and [Y/+] to select one. (If you press [MODE], you exit to the next submenu.) 4. Press [Y/+] to save your choice or [N/-] to undo your selection. Leave the sub-menu and return to the Programming Mode menus by pressing [MODE]. Meas. Unit Standard available measurement units include: Abbreviation Unit MiniRAE 3000 ppm parts per million Yes ppb parts per billion mg/m3 milligrams per cubic meter Yes ug/m3 micrograms per cubic meter Scroll through the list by pressing [N/-]. Select by pressing [Y/+]. Save your selection by pressing [Y/+] or undo your selection by pressing [N/-]. Leave the sub-menu and return to the Programming Mode menus by pressing [MODE]. 53 MiniRAE 3000 User’s Guide Alarm Setting During each measurement period, the gas concentration is compared with the programmed alarm limits (gas concentration alarm limit settings: Low, High, TWA and STEL). If the concentration exceeds any of the preset limits, the loud buzzer and red flashing LED are activated immediately to warn of the alarm condition. An alarm signal summary is shown on page 27. In this menu, you can change the High and Low alarm limits, the STEL limit, and the TWA. Press [Y/+] to to enter the Alarm Setting menu. Note: All settings are shown in ppb (parts per billion), or µg/m3 (micrograms per cubic meter), depending on your setting. 1. Scroll through the Alarm Limit sub-menu using the [N/-] key until the display shows the desired limit to be changed (High Alarm, Low Alarm, STEL Alarm, and TWA Alarm) 2. Press [Y/+] to select one of the alarm types. The display shows a flashing cursor on the left-most digit of the previously stored alarm limit. 3. Press [Y/+] to increase each digit’s value. 4. Press [N/-] to advance to the next digit. 5. Again, use [Y/+] to increase the number. Repeat this process until all numbers are entered. Press [MODE] when you are done. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. When all alarm types have been changed or bypassed, press [MODE] to exit to the Programming Menu. 54 MiniRAE 3000 User’s Guide High Alarm You can change the High Alarm limit value. The value is typically set by the instrument to match the value for the current calibration gas. It is expressed in parts per billion (ppb). Note: The default value depends on the measurement gas. To change the High Alarm value: 1. Press [Y/+] to increase each digit’s value. 2. Press [N/-] to advance to the next digit. 3. Again, use [Y/+] to increase the number. Repeat this process until all numbers are entered. When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. Low Alarm You can change the Low Alarm limit value. The value is typically set by the instrument to match the value for the current calibration gas. It is expressed in parts per billion (ppb). Note: The default value depends on the measurement gas. To change the Low Alarm value: 1. Press [Y/+] to increase each digit’s value. 2. Press [N/-] to advance to the next digit. 3. Again, use [Y/+] to increase the number. Repeat this process until all numbers are entered. 55 MiniRAE 3000 User’s Guide When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. STEL Alarm You can change the STEL Alarm limit value. The value is typically set by the instrument to match the value for the calibration gas. It is expressed in parts per billion (ppb). Note: The default value depends on the measurement gas. To change the STEL Alarm value: 1. Press [Y/+] to increase each digit’s value. 2. Press [N/-] to advance to the next digit. 3. Again, use [Y/+] to increase the number. Repeat this process until all numbers are entered. When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. 56 MiniRAE 3000 User’s Guide TWA Alarm You can change the TWA (time-weighted average) Alarm limit value. The value is typically set by the instrument to match the value for the calibration gas. It is expressed in parts per billion (ppb). Note: The default value depends on the measurement gas. To change the TWA Alarm value: 1. Press [Y/+] to increase each digit’s value. 2. Press [N/-] to advance to the next digit. 3. Again, use [Y/+] to increase the number. Repeat this process until all numbers are entered. When you have completed your selections, press [MODE]. You will see two choices: Save Undo You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. 57 MiniRAE 3000 User’s Guide Alarm Type There are two selectable alarm types: Latched When the alarm is triggered, you can manually stop the alarm. The latched setting only controls alarms for High Alarm, Low Alarm, STEL Alarm, and TWA alarm. Note: To clear an alarm when the instrument is set to “Latched,” press [Y/+] when the main (Reading) display is shown. Automatic Reset When the alarm condition is no longer present, the alarm stops and resets itself. 1. Press [N/-] to step from one alarm type to the other. 2. Press [Y/+] to select an alarm type. When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. 58 MiniRAE 3000 User’s Guide Buzzer & Light The buzzer and light alarms can be programmed to be on or off individually or in combination. Your choices are: Both on Light only Buzzer only Both off 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates your selection). 3. When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. Datalog The instrument calculates and stores the concentration and ID of each sample taken. In the datalog sub-menu, a user can perform the tasks and functions shown below. 59 MiniRAE 3000 User’s Guide 1. Scroll through the Datalog sub-menu using the [N/-] key until the display shows the desired parameter to be changed: Clear Datalog Interval Data Selection Datalog Type 2. Press [Y/+] to make your selection. Exit by pressing [MODE] for Back. Clear Datalog This erases all the data stored in the datalog. Note: Once the datalog is cleared, the data cannot be recovered. Press [Y/+] to clear the datalog. The display asks, “Are you sure?” Press [Y/+] if you want to clear the datalog. When it has been cleared, the display shows “Datalog Cleared!” Press [N/-] if you do not want to clear the datalog. The display changes, and you are taken to the next sub-menu, Interval. Interval Intervals are shown in seconds. The default value is 60 seconds. The maximum interval is 3600 seconds. 1. Press [Y/+] to increase each digit’s value. 2. Press [N/-] to advance to the next digit. 3. Again, use [Y/+] to increase the number. 60 MiniRAE 3000 User’s Guide Repeat this process until all numbers are entered. When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. Data Selection Data Selection allows you to select which types of data are stored and made available when you offload your datalog to a computer via ProRAE Studio software. You can choose any or all of three types of data (you must choose at least one): Average Maximum Minimum 1. Press [N/-] to step from one option to the next. The highlighter indicates your choice. 2. Press [Y/+] to toggle your selection on or off (the check box indicates “on” with an “X”). 3. When you have completed your selections, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. 61 MiniRAE 3000 User’s Guide Datalog Type The instrument has three datalog types: Auto Default mode. Collects datalog information when the instrument is sampling. Manual Datalogging occurs only when the instrument’s datalogging is manually started (see below for details). Snapshot Datalogs only during single-event capture sampling. Note: You can only choose one datalog type to be active at a time. 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates “on”). 3. When you have completed your selection, press [MODE]. You will see two choices: Save and Undo. You have the opportunity to register the new settings or to change your mind and revert to your previous settings. Press [Y/+] to save the changes. Press [N/-] to undo the changes and revert to the previous settings. Manual Datalog When the instrument is set to Manual Datalog, you turn datalogging on and off by stepping through the displays from the Main Display, and then pressing the keys to select datalog on/off functions. When you reach the screen that says “Start Datalog?” press [Y/+] to start it. You see “Datalog Started,” confirming that datalogging is now on. When you reach the screen that says “Stop Datalog?” press [Y/+] to stop it. You see “Datalog Stopped,” confirming that datalogging is now off. 62 63 MiniRAE 3000 User’s Guide Note: Dashed line indicates automatic progression. MiniRAE 3000 User’s Guide Snapshot Datalog When the instrument is in Snapshot datalogging mode, it captures a single “snapshot” of the data at the moment of your choosing. Whenever the instrument is on and it is set to Snapshot, all you have to do is press [MODE] each time you want to capture a snapshot of the data at that instant. When you send the data to a computer using ProRAE Studio, the data snapshots are uniquely identified by time and other parameters. Monitor Setup Many settings can be accessed in this menu, including setting the date and time and adjusting the pump’s on/off duty cycle. Op Mode Under Monitor Setup is “Op Mode.” Press [Y/+] to select. You see two options (one is highlighted): Hygiene Search 64 MiniRAE 3000 User’s Guide The current mode is indicated by a dark circle within the circle in front of either Hygiene or Search. 1. Select Hygiene or Search by pressing [N/-]. The highlighting changes from one to the other each time you press [N/-]. 2. Press [Y/+] to select that mode for the instrument. 3. Press [MODE] when you want to register your selection to place the instrument in the selected mode. 4. Press [Y/+] to commit the change and exit to the Monitor Setup screen, or press [N/-] to Undo (exit to the Monitor Setup screen without changing the Mode). Site ID Enter an 8-digit alphanumeric/character Site ID in the programming mode. This Site ID is included in the datalog report. 1. Press [Y/+] and the display shows the current site ID. Example: “RAE00001.” Note that the left-most digit flashes to indicate it is the selected one. 2. Press [Y/+] to step through all 26 letters (A to Z) and 10 numerals (0 to 9). Note: The last four digits must be numerals. 3. Press [N/-] to advance to the next digit. The next digit to the right flashes. Repeat this process until all eight digits of the new site ID are entered. Press [MODE] to exit. If there is any change to the existing site ID, the display shows “Save?” Press [Y/+] to accept the new site ID. Press [N/-] to discard the change and move to the next sub-menu. 65 MiniRAE 3000 User’s Guide User ID Enter an 8-digit alphanumeric User ID in the programming mode. This User ID is included in the datalog report. 1. Press [Y/+] and the display shows the current User ID. Example: “RAE00001.” Note that the left-most digit flashes to indicate it is the selected one. 2. Press [Y/+] to step through all 26 letters (A to Z) and 10 numerals (0 to 9). 3. Press [N/-] to advance to the next digit. The next digit to the right flashes. Repeat this process until all eight digits of the new User ID are entered. Press [MODE] to exit. If there is any change to the existing User ID, the display shows “Save” Press [Y/+] to accept the new site ID. Press [N/-] to discard (undo) the change and move to the next sub-menu. User Mode The instrument has two user modes: Basic Basic users can only see and use a basic set of functions. Advanced Advanced users can see all screens and perform all available functions. Note: The default value for User Mode is Basic. 66 MiniRAE 3000 User’s Guide To change the User Mode: 1. Press [N/-] to step from one option to the next. The highlighting changes each time you press [N/-]. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates “on”). 3. When you have completed your selection, press [MODE]. 4. Press [Y/+] to accept the new User Mode. Press [N/-] to discard the change and move to the next sub-menu. Date The Date is expressed as Month/Day/Year, with two digits for each. 1. Press [Y/+] and the display shows the current date. Note that the left-most digit flashes to indicate it is selected. 2. Press [Y/+] to step through all 10 numerals (0 to 9). 3. Press [N/-] to advance to the next digit. The next digit to the right flashes. Repeat this process until all six digits of the new date are entered. Press [MODE] to exit. Press [Y/+] to save the new date. Press [N/-] to undo the change and move to the next sub- menu. Time The Time is expressed as Hours/Minutes/Seconds, with two digits for each. The time is in 24-hour (military) format. 1. Press [Y/+] and the display shows the current time. Note that the left-most digit flashes to indicate it is selected. 67 MiniRAE 3000 User’s Guide 2. Press [Y/+] to step through all 10 numerals (0 to 9). 3. Press [N/-] to advance to the next digit. The next digit to the right flashes. Repeat this process until all six digits of the new time are entered. Press [MODE] to exit. Press [Y/+] to save the new date. Press [N/-] to undo the change and move to the next sub- menu. Duty Cycle The pump’s duty cycle is the ratio of its on time to off time. The duty cycle ranges from 50% to 100% (always on), and the period is 10 seconds. Therefore, a duty cycle of 60% means that the pump is on for 6 seconds and off for four seconds. Duty cycling is employed by the instrument to clean the PID. A lower duty cycle has a greater effect on keeping the PID clean than a higher duty cycle. Important! Pump duty cycling is interrupted when the instrument senses a gas. The pump’s duty cycle is disabled when the measurement is greater than the 2ppm threshold and is re-enabled when the reading falls below 90% of the threshold (1.8 ppm). 1. Press [Y/+] to increase the value. 2. When you have completed your selection, press [MODE]. Press [Y/+] to save the new duty cycle value. Press [N/-] to undo the change and move to the next sub- menu. 68 MiniRAE 3000 User’s Guide Temperature Unit The temperature display can be switched between Fahrenheit and Celsius units. 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates “on”). 3. When you have completed your selection, press [MODE]. Press [Y/+] to save the new temperature unit. Press [N/-] to undo the change and move to the next sub- menu. Pump Speed The pump can operate at two speeds, high and low. Running at low speed is quieter and conserves a small amount of power. There is almost no difference in sampling accuracy. 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates “on”). 3. When you have completed your selection, press [MODE]. Press [Y/+] to save the new temperature unit. Press [N/-] to undo the change and move to the next sub- menu. 69 MiniRAE 3000 User’s Guide Language English is the default language, but other languages can be selected for the instrument. 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates “on”). 3. When you have completed your selection, press [MODE]. Press [Y/+] to save your new language choice. Press [N/-] to undo it and return to the previous language selection. Radio Power The radio connection can be turned on or off. 1. Press [N/-] to step from one option to the next (on or off). 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates that the option is selected). 3. When you have completed your selection, press [MODE]. Press [Y/+] to accept the new radio setting (on or off). Press [N/-] to discard the change and move to the next sub- menu. 70 MiniRAE 3000 User’s Guide Real Time Protocol Real Time Protocol is the setting for data transmission. The choices are: P2M (cable) Point to multipoint. Data is transferred from the instrument to multiple locations using a wired connection. Default data rate: 19200 bps. P2P (cable) Point to point. Data is transferred only between the instrument and one other location, such as a computer. Default data rate: 9600 bps. P2M (wireless) Point to multipoint, wireless. Data is transferred wirelessly and can be received by multiple receivers. 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates “on”). 3. When you have completed your selection, press [MODE]. Press [Y/+] to save the new real-time communications protocol. Press [N/-] to undo the change and move to the next sub-menu. Power On Zero When Power On Zero is on, the instrument performs a zero calibration when it is turned on. 1. Press [N/-] to step from one option to the next. 2. Press [Y/+] to make your selection (the dark circle in the “radio button” indicates your selection). 3. When you have completed your selection, press [MODE]. Press [Y/+] to save the change. Press [N/-] to discard the change and move to the next sub- menu. 71 MiniRAE 3000 User’s Guide Unit ID This three-digit number keeps data separated by instrument when more than one instrument is used in a network. If multiple sensing units are attempting to communicate with the same Host, then the units must all have a different Unit ID. 1. Press [Y/+] to step through all 10 numerals (0 to 9). If you pass the numeral you want, keep pressing [Y/+]. After it counts up to 9, it starts counting up from 0 again. 2. Press [N/-] to advance to the next digit. The next digit to the right flashes. Repeat this process until all three digits of the Unit ID are entered. 3. Press [MODE] when you are done. Press [Y/+] to save the change. Press [N/-] to discard the change and move to the next sub- menu. LCD Contrast The display’s contrast can be increased or decreased from its default setting. You may not need to ever change the default setting, but sometimes you can optimize the display to suit extreme temperature and ambient brightness/darkness conditions. The minimum value is 20. The maximum value is 60. 1. Press [Y/+] to increase the value or [N/-] to decrease the value. 2. Press [MODE] to save your selection. Press [Y/+] to save your new contrast value. Press [N/-] to undo it and return to the previous value. 72 MiniRAE 3000 User’s Guide Hygiene Mode The instrument usually operates in Hygiene Mode, which provides basic functionality. However, it is possible to operate it in a second mode called Search Mode. Here are the primary differences: Hygiene Mode: Automatic measurements, continuously running and datalogging, and calculates additional exposure values. Search Mode: Manual start/stop of measurements and display of certain exposure values. 73 MiniRAE 3000 User’s Guide Basic User Level & Hygiene Mode The default setting is navigated in the following way: Note: Dashed line indicates automatic progression. 74 MiniRAE 3000 User’s Guide Pressing [N/-] steps you from screen to screen. Options include clearing the Peak value and turning on the instrument’s PC Communications for data transfer to a PC. 75 MiniRAE 3000 User’s Guide Entering Search Mode From Hygiene Mode In order to change the instrument’s operational mode from Hygiene Mode to Search Mode, you must enter the password-protected Programming Mode: 1. Hold [MODE] and [N/-] until you see the password screen. 2. Use [Y/+] to increment to the number you want for the first digit. (If you pass by the desired number, press [Y/+] until it cycles through to 0 again. Then press [Y/+] until you reach the desired number.) 3. Press [N/-] to advance to the next digit. 4. Again press [Y/+] to increment the number. 5. Press [N/-] to advance to the next digit. Continue the process until all four numbers of the password have been input. Then press [MODE] to proceed. The screen changes to icons with the label “Calibration.” 1. Press [N/-] to advance to “Monitor Setup.” 2. Press [Y/+] to select Monitor Setup. Under Monitor Setup, you will see “Op Mode.” Press [Y/+] to select. You will see: Hygiene Search The current mode is indicated by a dark circle within the circle in front of either Hygiene or Search. 1. Select Hygiene or Search by pressing [N/-]. 2. Press [Y/+] to place the instrument into the selected mode. 76 MiniRAE 3000 User’s Guide 3. Press [MODE] when you want to register your selection to place the instrument in the selected mode. 4. Press [Y/+] to commit the change and exit to the Monitor Setup screen, or press [N/-] to Undo (exit to the Monitor Setup screen without changing the Mode). Optional Graphic Screen In Search Mode Using ProRAE Studio, you can set your instrument to show a graphic display instead of a numeric display of ongoing data. Consult your ProRAE Studio disc for information. During sampling, the display’s readings are shown numerically, plus the graph tracks the highest readings over time. The numeric reading alternates between the value and the measurement units, as well: 77 MiniRAE 3000 User’s Guide Advanced User Level (Hygiene Mode Or Search Mode) The User Mode called Advanced User Level allows a greater number of parameters to be changed than Basic User Level. It can be used with either of the Operation Modes, Hygiene Mode or Search Mode. Advanced User Level & Hygiene Mode With the instrument in Operation Mode: Hygiene Mode, enter User Mode: Advanced User Level (refer to the section called Monitor Mode for instructions). Once you are in Advanced User Level and Hygiene Mode together, you can change the calibration reference and measurement gas, in addition to performing normal monitoring functions. Pressing [N/-] progresses through the screens, while pressing [Y/+] selects options. Pressing [MODE] makes menu choices when it is shown for “Done” or “Back.” Pressing and holding [Mode] whenever the circle with a vertical line in the middle is shown activates the countdown to shutoff. 78 79 MiniRAE 3000 User’s Guide Note: Dashed line indicates automatic progression. MiniRAE 3000 User’s Guide Basic User Level & Search Mode With the instrument in Operation Mode: Search Mode, enter User Mode and select Basic User Level (refer to the section called User Mode for instructions). When the instrument is in Search Mode, it only samples when you activate sampling. When you see the display that says, “Ready…Start sampling?” press [Y/+] to start. The pump turns on and the instrument begins collecting data. To stop sampling, press [N/-] while the main display is showing. You will see a new screen that says, “Stop sampling?” Press [Y/+] to stop sampling. Press [N/-] if you want sampling to continue. 80 81 MiniRAE 3000 User’s Guide Note: Dashed line indicates automatic progression. MiniRAE 3000 User’s Guide Advanced User Level & Search Mode With the instrument in Operation Mode: Search Mode, enter User Mode and select Advanced User Level (refer to the section called Monitor Mode for instructions). Operation is similar to Basic User Level & Sampling Mode, but now allows you to change calibration and measurement reference gases. Refer to the section on measurement gases on page 52 for more details. Note: Dashed line indicates automatic progression. 82 MiniRAE 3000 User’s Guide Diagnostic Mode IMPORTANT! Diagnostic Mode is designed for servicing and manufacturing, and therefore is not intended for everyday use, even by advanced users. It provides raw data from sensors and about settings, but only allows adjustment of pump stall parameters, which should only be changed by qualified personnel. Note: If the instrument is turned on in Diagnostic Mode and you switch to User Mode, datalog data remains in raw count form. To change to standard readings, you must restart the instrument. Entering Diagnostic Mode Note: To enter Diagnostic Mode, you must begin with the instrument turned off. Press and hold [Y/+] and [MODE] until the instrument starts. The instrument goes through a brief startup, and then displays raw data for the PID sensor. These numbers are raw sensor readings without calibration. The instrument is now in Diagnostic Mode. Note: In Diagnostic Mode, the pump and lamp are normally on. You can enter Programming Mode and calibrate the instrument as usual by pressing both [MODE] and [N/-] for three seconds. You can enter Monitoring Mode by pressing [MODE] and [Y/+] together for three seconds. Once the instrument is started up in Diagnostic Mode, you can switch between Diagnostic Mode and Monitoring Mode by pressing and holding [MODE] and [Y/+] simultaneously for two seconds. In Diagnostic mode, you can step through parameter screens by pressing [MODE]. 83 MiniRAE 3000 User’s Guide Adjusting The Pump Stall Threshold If the gas inlet is blocked but the pump does not shut down, or the pump shuts down too easily with a slight blockage, the pump stall threshold value may be set too high or too low. Use the following steps to adjust the pump stall threshold: Pump High In Diagnostic Mode, press the [MODE] key until “Pump High” is displayed. The display shows the maximum, minimum, and stall values for the pump at its high speed. Write down the “Max” reading. Block the gas inlet and watch the pump current reading (labeled “I”) increase. Write down its blocked reading. Note: If the pump current reading does not increase significantly (less than 10 counts), then there may be a leak in the gas inlet or the pump is weak or defective. Add the two readings you wrote down. This is the average of the maximum block count and the maximum idle count. Divide that number by 2. Use the [Y/+] or [N/-] key to increase or decrease the stall value to equal that number. Press the [MODE] key to exit this display. Pump Low In Diagnostic Mode, press the [MODE] key until “Pump Low” is displayed. The display shows the maximum, minimum, and stall values for the pump at its low speed. Write down the “Max” reading. Block the gas inlet and watch the pump current reading (labeled “I”) increase. Write down its blocked reading. Note: If the pump current reading does not increase significantly (less than 10 counts), then there may be a leak in the gas inlet or the pump is weak or defective. Add the two readings you wrote down. This is the average of the maximum block count and the maximum idle count. Divide that 84 MiniRAE 3000 User’s Guide number by 2. Use the [Y/+] or [N/-] key to increase or decrease the stall value to equal that number. Press the [MODE] key to exit this display. Exiting Diagnostic Mode You can exit Diagnostic Mode and go directly to Programming Mode or Monitor Mode as outlined above, or you can exit Diagnostic Mode completely. To exit Diagnostic Mode so that it cannot be re-entered without a restart: Shut down the instrument. When it is off, restart it by holding the [MODE] key. Diagnostic Mode cannot be entered until the instrument is restarted as outlined in “Entering Diagnostic Mode.” 85 MiniRAE 3000 User’s Guide Transferring Data To & From A Computer Once you have connected your instrument cradle to the PC, you can can transfer data, including a download of the datalog to the computer and updates of firmware to the instrument (should this ever be necessary). Downloading The Datalog To A PC 1. Connect the data cable to the PC and the cradle. 2. Place the instrument into its cradle. The charging LED should be illuminated. 3. Start ProRAE Studio on your PC. 4. From ProRAE Studio, select “Operation” and select Setup Connection. 5. Select the COM port to establish a communication link between the PC and the instrument. 6. To receive the datalog in the PC, select “Downlog Datalog.” 7. When you see “Unit Information,” click OK. During the data transfer, the display shows a progress bar. When the transfer is done, you will see a screen with the datalog information. You can now export this datalog for other use or printing. 86 MiniRAE 3000 User’s Guide Uploading Firmware To The instrument From A PC Uploading new firmware to your instrument requires connecting the instrument and PC. Follow these steps to make the connection: 1. Connect the data cable to the PC and the cradle. 2. Place the instrument into its cradle. The charging LED should be illuminated. 3. Start RAEProgrammer 7000 on your PC. 4. From RAEProgrammer 7000, select “Operation” and select Setup Connection. 5. Select the COM port to establish a communication link between the PC and the instrument. 6. Select Operation Æ Download Firmware. Once communication is established, follow the instructions that accompany RAEProgrammer 7000 and the firmware to upload the new firmware to your instrument. Important! Do not use the AC adapter with the cradle when downloading firmware. Unplug the AC adapter before performing a firmware upload, and then plug it back in afterwards. Note: Check for the latest updates to ProRAEProgrammer 7000 at www.raesystems.com. 87 MiniRAE 3000 User’s Guide Maintenance The major maintenance items of the instrument are: Battery pack Sensor module PID lamp Sampling pump Inlet connectors and filters Note: Maintenance should be performed by qualified personnel only. NOTE: The printed circuit board of the instrument is connected to the battery pack even if the power is turned off. Therefore, it is very important to disconnect the battery pack before servicing or replacing any components inside the instrument. Severe damage to the printed circuit board or battery may occur if the battery pack is not disconnected before servicing the unit. Battery Charging & Replacement When the display shows a flashing empty battery icon, the battery requires recharging. It is recommended to recharge the instrument upon returning from fieldwork. A fully charged battery runs a instrument for 16 hours continuously. The charging time is less than 8 hours for a fully discharged battery. The battery may be replaced in the field (in areas known to be non-hazardous), if required. WARNING! To reduce the risk of ignition of hazardous atmospheres, recharge battery only in area known to be non-hazardous. Remove and replace battery only in areas known to be non-hazardous. 88 MiniRAE 3000 User’s Guide Replacing The Li-ion Battery 1. Turn off the instrument. 2. Located on the rear of the instrument is a battery tab. Slide it down to unlock the battery. 3. Remove the battery pack from the battery compartment by tilting it out. 4. Replace a fully charged spare battery pack inside the battery compartment. Make sure the battery pack is oriented properly inside the compartment. 5. Slide the capture tab back up to its locked position. Replacing The Alkaline Battery Adapter An alkaline battery adapter is supplied with each instrument. The adapter (part number 059-3052-000) accepts four AA alkaline batteries (use only Duracell MN1500) and provides approximately 12 hours of operation. The adapter is intended to be used in emergency situations when there is no time to charge the Li-ion battery pack. To insert batteries into the adapter: 1. Remove the three Philips-head screws to open the compartment. 2. Insert four fresh AA batteries as indicated by the polarity (+/-) markings. 3. Replace the cover. Replace the three screws. 89 MiniRAE 3000 User’s Guide To install the adapter in the instrument: 1. Remove the Li-ion battery pack from the battery compartment by sliding the tab and tilting out the battery. 2. Replace it with the alkaline battery adapter 3. Slide the tab back into place to secure the battery adapter. IMPORTANT! Alkaline batteries cannot be recharged. The instrument’s internal circuit detects alkaline batteries and will not allow recharging. If you place the instrument in its cradle, the alkaline battery will not be recharged. The internal charging circuit is designed to prevent damage to alkaline batteries and the charging circuit when alkaline batteries are installed inside the instrument. Note: When replacing alkaline batteries, dispose of old ones properly. WARNING! To reduce the risk of ignition of hazardous atmospheres, recharge the battery only in areas known to be non-hazardous. Remove and replace the battery only in areas known to be non-hazardous. Note: The internal charging circuit is designed to prevent charging to alkaline batteries. 90 MiniRAE 3000 User’s Guide PID Sensor & Lamp Cleaning/Replacement The sensor module is made of several components and is attached to the lamp-housing unit as shown below. Inlet Probe Assembly PN 023-3012-000 Sensor Cover Assembly O-ring, 35mm x 2mm Filter Fixer Porous Metal Filter Lamp 1/2" (10.6eV) PN 050-0000-004 Sensor Detector PN 023-3010-000 Seal Nut Teflon O-ring Stainless Steel Washer O-ring, 36.5mm x 2.65mm Sensor Module Assembly PN 023-3005-200-FRU THP (temperature, humidity, pressure) Sensor Module PN 023-3011-000-FRU Sensor Components Note: The cleaning procedure is not normally needed. Clean the PID sensor module, the lamp and the lamp housing only if: 1. The reading is inaccurate even after calibration. 2. The reading is very sensitive to air moisture. 3. A liquid has been sucked into the unit and damaged the unit. Use of the external filter helps to prevent contamination of the sensor. To access the sensor components and lamp, gently unscrew the lamp- housing cap, remove the sensor adapter with the gas inlet probe and the metal filter all together. Then hold the PID sensor and pull it straight out. A slight, gentle rocking motion helps release the sensor. 91 MiniRAE 3000 User’s Guide Cleaning The PID Sensor Place the entire PID sensor module into GC grade methanol. It is highly recommended that an ultrasound bath to be used to clean the sensor for at least 15 minutes. Then dry the sensor thoroughly. Never touch the electrodes of the sensor by hand. Also use a methanol-soaked cotton swab to wipe off the lamp housing where it contacts the sensor when the sensor is installed. Turn over the sensor so that the pins point up and the sensor cavity is visible. Examine the sensor electrodes for any corrosion, damage, or bending out of alignment. The metal sensor electrode “fingers” should be flat and straight. If necessary, carefully bend the sensor fingers to ensure that they do not touch the Teflon portions and that they are parallel to each other. Make sure that the nuts on the sensor pins are snug but not overtight. If the sensor is corroded or otherwise damaged, it should be replaced. Cleaning The Lamp Housing Or Changing The Lamp If the lamp does not turn on, the instrument will display an error message to indicate replacement of the lamp may be required. 1. If the lamp is operational, clean the lamp window surface and the lamp housing by wiping it with GC grade methanol using a cotton swab using moderate pressure. After cleaning, hold the lamp up to the light at an angle to detect any remaining film. Repeat the process until the lamp window is clean. Never use water solutions to clean the lamp. Dry the lamp and the lamp housing thoroughly after cleaning. CAUTION: Never touch the window surface with the fingers or anything else that may leave a film. Never use acetone or aqueous solutions. 2. If the lamp does not turn on, remove the lamp from the lamp housing. Place the lamp O-ring onto the new lamp. Insert the new lamp, avoiding contact with the flat window surface. 3. Reinstall the PID sensor module. 4. Tighten the Lamp Housing Cap. 92 MiniRAE 3000 User’s Guide Determining The Lamp Type The monitor can accommodate three lamp values: 10.6eV (standard), 9.8eV, and 11.7eV. The monitor automatically reads a marking on the side of the lamp to set the proper Correction Factor. There are two ways to determine the lamp type: Remove the lamp and look for markings (bars) on the side: No bars: 10.6eV 1 bar: 11.7eV 2 bars: 9.8eV Also, when the monitor is running, the lamp type is shown along with the calibration and measurement gas and Correction Factor: Note: This screen can be accessed from the reading screen by pressing [N/-] four times. 93 MiniRAE 3000 User’s Guide Sampling Pump When approaching the end of the specified lifetime of the pump, it will consume higher amount of energy and reduce its sample draw capability significantly. When this occurs, it is necessary to replace or rebuild the pump. When checking the pump flow, make sure that the inlet connector is tight and the inlet tubing is in good condition. Connect a flow meter to the gas inlet probe. The flow rate should be above 450 cc/min when there is no air leakage. If the pump is not working properly, refer the instrument to qualified service personnel for further testing and, if necessary, pump repair or replacement. Cleaning The Instrument Occasional cleaning with a soft cloth is recommended. Do not use detergents or chemicals. Visually inspect the contacts at the base of the instrument, on the battery, and on the charging cradle to make sure they are clean. If they are not, wipe them with a soft, dry cloth. Never use solvents or cleaners. Ordering Replacement Parts If you need replacement parts, contact your local RAE Systems distributor. A list is available online: http://www.raesystems.com In the U.S., you can order sensors, replacement batteries, and other accessories online at: http://istore.raesystems.com/ 94 MiniRAE 3000 User’s Guide Special Servicing Note If the instrument needs to be serviced, contact either: 1. The RAE Systems distributor from whom the instrument was purchased; they will return the instrument on your behalf. or 2. The RAE Systems Technical Service Department. Before returning the instrument for service or repair, obtain a Returned Material Authorization (RMA) number for proper tracking of your equipment. This number needs to be on all documentation and posted on the outside of the box in which the instrument is returned for service or upgrade. Packages without RMA Numbers will be refused at the factory. 95 MiniRAE 3000 User’s Guide Troubleshooting Problem Possible Reasons & Solutions Cannot turn on power Reasons: Discharged battery. after charging the Defective battery. battery Solutions: Charge or replace battery. Lost password Solutions: Call Technical Support at +1 408-752-0723 or toll- free at +1 888-723-4800 Reading abnormally Reasons: Dirty filter. High Dirty sensor module. Excessive moisture and water condensation. Incorrect calibration. Solutions: Replace filter. Blow-dry the sensor module. Calibrate the unit. Reading abnormally Reasons: Dirty filter. Low Dirty sensor module. Weak or dirty lamp. Incorrect calibration. Solutions: Replace filter. Remove Calibration Adapter. Calibrate the unit. Check for air leakage. Buzzer Reasons: Bad buzzer. Inoperative Solutions: Check that buzzer is not turned off. Call authorized service center. 96 MiniRAE 3000 User’s Guide Inlet flow too low Reasons: Pump diaphragm damaged or has debris. Flow path leaks. Solutions: Check flow path for leaks; sensor module O-ring, tube connectors, Teflon tube compression fitting. Call Technical Support at +1 408-752-0723 or toll-free at +1 888-723-4800 “Lamp” message Reasons: Lamp drive circuit. during operation Weak or defective PID lamp, defective. Solutions: Turn the unit off and back on. Replace UV lamp Technical Support To contact RAE Systems Technical Support Team: Monday through Friday, 7:00AM to 5:00PM Pacific (US) Time Phone (toll-free): +1 888-723-4800 Phone: +1 408-952-8461 Email: [email protected] Life-critical after-hours support is available: +1 408-952-8200 select option 8 97

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