RKI Instruments Eagle 2 Operator's Manual.pdf

EAGLE 2 Operator’s Manual Part Number: 71-0154RK Revision: N Released: 2/13/13 www.rkiinstruments.com WARNING Read and understand this instruction manual before operating instrument. Improper use of the gas monitor could result in bodily harm or death. Periodic calibration and maintenance of the gas monitor is essential for proper operation and correct readings. Please calibrate and maintain this instrument regularly! Frequency of calibration depends upon the type of use you have and the sensor types. Typical calibration frequencies for most applications are between 1 and 3 months, but can be required more often or less often based on your usage. EAGLE 2 Operator’s Manual Table of Contents Chapter 1: Introduction....................................1 Overview.................................................... 1 About the EAGLE 2........................................... 1 Specifications................................................ 3 About this Manual............................................. 4 Chapter 2: Description.....................................6 Overview.................................................... 6 Instrument Description......................................... 6 Case.................................................. 8 Sensors................................................ 8 LCD................................................... 9 Control Buttons......................................... 10 Printed Circuit Boards (PCBs)............................. 11 Alarm LEDs........................................... 12 Infrared Communications Port............................. 12 Buzzer................................................ 13 Battery Case & Batteries................................. 13 Flow System........................................... 14 Standard Accessories......................................... 15 Shoulder Strap......................................... 15 Hose and Probe......................................... 15 Optional Accessories.......................................... 16 Rechargeable Ni-MH Batteries............................. 17 Battery Chargers........................................ 17 Optional Probes........................................ 18 External Dilution Fittings................................. 21 Chapter 3: Operation..................................... 22 Overview................................................... 22 Start Up.................................................... 22 Turning On the EAGLE 2................................. 22 Performing a Demand Zero............................... 27 Turning Off the EAGLE 2................................. 27 Using the Battery Charger for Continuous Operation................. 28 EAGLE 2 Operator’s Manual Table of Contents Measuring Mode, Normal Operation............................. 29 Monitoring an Area...................................... 29 Using Optional Sample Hoses............................. 30 Using Exhaust Tubing.................................... 30 Combustible Gas Detection............................... 31 Monitoring Combustible Gas in the PPM or %Volume Ranges.... 32 Measuring Mode, Alarms...................................... 35 Alarm Indications....................................... 35 Resetting and Silencing Alarms............................ 36 Responding to Alarms.................................... 38 Display Mode............................................... 39 Tips for Using Display Mode.............................. 40 Peak Screen............................................ 40 Battery Voltage Screen................................... 41 Gas Display Screen...................................... 41 Catalytic (LEL) Sensor Screen.............................. 42 Methane Elimination Mode Screen.......................... 42 Relative Response Screen................................. 43 STEL Screen........................................... 45 TWA Screen............................................ 45 View Alarm Settings Screen............................... 45 Select User ID Screen.................................... 47 Select Station ID Screen.................................. 49 Time in Operation Screen................................. 50 Date/Time Screen....................................... 51 Data Logging Screen.................................... 51 Data Logging................................................ 52 Chapter 4: Calibration Mode...............................54 Overview................................................... 54 Calibration Supplies and Equipment.............................. 55 Entering Calibration Mode..................................... 56 Calibrating Using the Auto Calibration Method..................... 57 Setting the Fresh Air Reading.............................. 57 Performing a Span Adjustment in Auto Calibration............. 58 Calibrating Using the Single Calibration Method.................... 63 Setting the Fresh Air Reading.............................. 63 Performing a Span Adjustment in Single Calibration........... 64 Table of Contents EAGLE 2 Operator’s Manual Chapter 5: Maintenance...................................69 Overview................................................... 69 Troubleshooting............................................. 69 Replacing or Recharging the Batteries............................ 71 Replacing the Batteries................................... 71 Recharging the Ni-MH Batteries........................... 73 Replacing the Hydrophobic Probe’s Particle Filter and Hydrophobic Filter Disk.................................................. 74 Replacing the Hydrophobic Filter................................ 76 Replacing the Charcoal Filter................................... 78 Checking the Combustible Gas Sensor’s Condition.................. 79 Replacing a Sensor........................................... 79 General Parts List............................................ 83 Appendix A: Calibrating with a Sample Bag..................85 Overview................................................... 85 Calibration Supplies and Equipment.............................. 85 Entering Calibration Mode..................................... 86 Calibrating Using the Auto Calibration Method..................... 87 Setting the Fresh Air Reading.............................. 87 Performing a Span Adjustment in Auto Calibration............. 88 Calibrating Using the Single Calibration Method.................... 93 Setting the Fresh Air Reading.............................. 93 Performing a Span Adjustment in Single Calibration........... 95 Parts List................................................... 99 Appendix B: Setup Mode.................................100 Overview.................................................. 100 Tips for Using Setup Mode.................................... 101 Using Setup Mode........................................... 102 Setting the Date and Time................................ 103 Setting the Date Format................................. 103 Setting the Battery Type................................. 104 Configuring the Channels................................ 104 Configuring the Combustible Gas......................... 107 Setting the Catalytic Detection Units....................... 112 Updating the Relative Response Setting..................... 113 EAGLE 2 Operator’s Manual Table of Contents Updating the Alarm Point Settings......................... 113 Updating the Alarm Latching Setting....................... 115 Updating the Alarm Silence Setting........................ 116 Turning the User/Station ID Function On or Off.............. 116 Updating the Autocal Values............................. 117 Updating the Backlight Delay Setting...................... 118 Updating the Auto Fresh Air Setting....................... 118 Updating the Data Log Interval Setting..................... 119 Updating the Data Log Overwrite Setting................... 120 Updating the Data Log Memory Setting..................... 120 Updating the LCD Contrast Setting........................ 121 Updating the Calibration Reminder Setting.................. 121 Updating the Calibration Past Due Action Setting............ 122 Updating the Calibration Interval......................... 122 Updating LC/BH Mode Setting............................ 123 Setting the Bar Hole Measurement Time.................... 124 Zero Follower Settings.................................. 124 Zero Suppression Settings................................ 124 Updating the Confirmation Alert Setting.................... 125 Turning the Password Function On or Off................... 125 Restoring the Default Settings............................ 126 Updating the Lunch Break Setting......................... 128 Updating the Span Factor Setting.......................... 128 Updating the Language Setting........................... 129 Exiting Setup Mode..................................... 129 Appendix C: Sub PCBs...................................131 Overview.................................................. 131 Description................................................. 131 Channel Setup and Sub PCBs.................................. 132 Sub PCBs and CONFIGURE CHANNELS................... 132 Sub PCBs and CONFIGURE GASES....................... 133 Appendix D: PID Sensors..................................135 Overview.................................................. 135 Description................................................. 135 PID Sensor and Sensor Adapter........................... 136 PID Sub PCB.......................................... 136 Table of Contents EAGLE 2 Operator’s Manual PID Probe............................................ 136 Start Up and Normal Operation................................. 137 PID Relative Response Feature................................. 138 PID Sensor Relative Response Screen in Display Mode......... 139 PID Calibration............................................. 142 Calibrating with a 4-Gas Cylinder and a PID Cylinder......... 142 Calibrating with a 5-Gas Cylinder......................... 151 Maintenance................................................ 159 Troubleshooting........................................ 159 Cleaning the PID Sensor’s Lamp........................... 159 Replacing PID Sensor’s Lamp............................. 164 Replacing Electrode Stack................................ 167 Replacing the PID Sensor................................ 170 Configuring the PID Gas in Setup Mode.......................... 171 Parts List.................................................. 177 Appendix E: ESM-01 Toxic Sensors.........................178 Overview.................................................. 178 Description................................................. 178 ESM-01 Sensor........................................ 179 ESM-01 Sub PCB....................................... 180 Start Up and Normal Operation................................. 180 ESM-01 Calibration.......................................... 180 Calibrating with a 4-Gas Cylinder and an ESM-01 Cylinder..... 181 Calibrating with a 5-Gas Cylinder......................... 190 Maintenance................................................ 198 Replacing the ESM-01 Sensor............................. 198 Replacing the H2S Scrubber in the SO2 and HCN Sensors....... 199 Parts List.................................................. 201 Appendix F: TC Sensors..................................203 Overview.................................................. 203 Description................................................. 203 TC Sensor............................................. 204 TC Sub PCB........................................... 204 Start Up and Normal Operation................................. 205 Catalytic (LEL) Sensor Screen................................. 205 EAGLE 2 Operator’s Manual Table of Contents TC Calibration.............................................. 206 Maintenance................................................ 215 Replacing the TC Sensor................................. 215 Configuring the TC Gas in Setup Mode.......................... 216 Parts List.................................................. 221 Appendix G: Infrared Carbon Dioxide Sensors...............222 Overview.................................................. 222 Description................................................. 222 Infrared Carbon Dioxide Sensor........................... 223 Infrared Sub PCB....................................... 223 CO2 Scrubber.......................................... 224 Start Up and Normal Operation................................. 225 Performing a Demand Zero for Carbon Dioxide Sensors........ 225 Infrared Carbon Dioxide Calibration............................. 226 Maintenance................................................ 235 Replacing the IR CO2 Sensor or Changing Sensor Type......... 235 Parts List.................................................. 236 Appendix H: Infrared Methane Sensors......................237 Overview.................................................. 237 Target Gases.......................................... 237 Description................................................. 238 Infrared Methane Sensor................................. 239 Infrared Sub PCB....................................... 239 Start Up and Normal Operation................................. 239 Detection Ranges....................................... 239 Catalytic (LEL) Sensor Screen................................. 239 Infrared Methane Calibration................................... 240 Maintenance................................................ 249 Replacing the IR Methane Sensor.......................... 249 Parts List.................................................. 250 Appendix I: Infrared Hydrocarbon Sensor...................251 Overview.................................................. 251 Target Gases.......................................... 251 Description................................................. 251 Table of Contents EAGLE 2 Operator’s Manual Infrared Hydrocarbon Sensor............................. 252 Infrared Sub PCB....................................... 252 Start Up and Normal Operation................................. 253 0-100 %LEL/2.0-30.0 %vol Autoranging.................... 253 Catalytic (LEL) Sensor Screen................................. 253 Infrared Hydrocarbon Calibration............................... 254 Maintenance................................................ 263 Replacing the IR Hydrocarbon Sensor...................... 263 Parts List.................................................. 264 Appendix J: Methane Elimination Mode.....................265 Overview.................................................. 265 Monitoring in Methane Elimination Mode........................ 265 Calibration................................................. 268 Appendix K: Using the EAGLE 2 in Bar Hole Mode...........269 Overview.................................................. 269 Start Up, Bar Hole Mode...................................... 269 Turning on EAGLE 2, Bar Hole Mode...................... 269 Performing a Demand Zero, Bar Hole Mode................. 274 Bar Hole Testing............................................ 275 Performing a Bar Hole Test............................... 275 Turning off the EAGLE 2, Bar Hole Mode................... 277 Appendix L: Using the EAGLE 2 in Leak Check Mode.........278 Overview.................................................. 278 Start Up, Leak Check Mode.................................... 278 Turning On the EAGLE 2, Leak Check Mode................. 278 Performing a Demand Zero, Leak Check Mode............... 283 Leak Testing................................................ 283 Locating a Leak........................................ 284 Turning the Buzzer On and Off In Leak Check Mode........... 284 Turning Off the EAGLE 2, Leak Check Mode................. 285 Appendix M: EAGLE 2 Tank Tester Model...................286 Description................................................. 286 Float Probe Assembly................................... 287 Dilution Fitting (1:1).................................... 287 EAGLE 2 Operator’s Manual Table of Contents Start Up................................................... 288 Alarms.................................................... 290 Calibration................................................. 290 Parts List.................................................. 291 Appendix N: Using the EAGLE 2 in Inert Mode.............. 292 Description................................................. 292 Alarms.................................................... 292 Start Up................................................... 295 Operation.................................................. 297 WARNING: Understand manual before operating. Substitution of components may impair intrinsic safety. To prevent ignition of a hazardous atmosphere, batteries must only be changed or charged in an area known to be nonhazardous. Not tested in oxygen enriched atmospheres (above 21%). NOTE: RKI Instruments, Inc. recommends that you refer to ISA-RP12.13, Part II-1987 or an equivalent international recommended practice for guidance in the use of combustible gas detection instruments. Table of Contents EAGLE 2 Operator’s Manual Chapter 1: Introduction Overview This chapter briefly describes the EAGLE 2 gas monitor. This chapter also describes the EAGLE 2 Operator’s Manual (this document). Table 1 at the end of this chapter lists the specifications for the EAGLE 2. About the EAGLE 2 Using an advanced detection system consisting of up to six gas sensors, the EAGLE 2 sample draw gas monitor is capable of detecting the presence of combustible gas, oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), and various other toxic gases simultaneously. The EAGLE 2’s rugged, reliable, and easy-to-use design makes it ideally suited for a wide range of applications, including sewage treatment plants, utility manholes, tunnels, hazardous waste sites, power stations, petrochemical refineries, mines, paper mills, drilling rigs, and fire fighting stations. The EAGLE 2 offers a full range of features including: Simultaneous monitoring of one to six gases. The standard configuration includes four sensors for combustible gas (%LEL, ppm, and %volume), oxygen, carbon monoxide (CO), and hydrogen sulfide (H2S). Choice of three operating modes: Normal Mode for typical confined space or area monitoring. Normal Mode is the standard factory setting. Bar Hole Mode for checking of bar holes when searching for underground gas leaks Leak Check Mode for locating leaks in valves and piping Sample-drawing pump with up to 125 foot range Liquid crystal display (LCD) for complete and understandable information at a glance Ultrabright alarm LEDs Distinctive audible alarm for dangerous gas conditions or unit malfunction Microprocessor control for reliability, ease of use, and advanced capabilities EAGLE 2 Operator’s Manual Overview 1 Data logging functions (when used in Normal Mode) Alarm trend data (when used in Normal Mode) STEL and TWA (when used in Normal Mode) and over range alarms Peak readings (when used in Normal Mode) Built-in time function Lunch break feature RF shielded high impact plastic case CSA classified for Class I, Division I, Groups A, B, C, and D hazardous atmospheres WARNING: The Model EAGLE 2 detects oxygen deficiency, elevated levels of oxygen, combustible gases, carbon monoxide, and hydrogen sulfide, all of which can be dangerous or life threatening. When using the EAGLE 2, you must follow the instructions and warnings in this manual to assure proper and safe operation of the unit and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the EAGLE 2 as described in this manual. NOTE: ONLY THE COMBUSTIBLE GAS DETECTION PORTION OF THIS INSTRUMENT HAS BEEN ASSESSED FOR PERFORMANCE. 2 About the EAGLE 2 EAGLE 2 Operator’s Manual Specifications Table 1: Standard Sensor Specifications Combustible Gas, Oxygen (O2) Hydrogen Carbon Methane (CH4) Sulfide (H2S) Monoxide (CO) Calibration Standard Detection 0 - 100 %LEL 0 - 40 volume% 0 - 100.0 ppm 0 - 500 ppm Range Reading 1 %LEL 0.1 volume % 0.5 ppm 1 ppm Increment Alarm 1 10 %LEL* 19.5 volume %* 10.0 ppm* 25 ppm* Factory Setting Alarm 2 50 %LEL 23.5 volume % 30.0 ppm 50 ppm Factory Setting STEL Alarm n/a n/a 15.0 ppm 200 ppm TWA Alarm n/a n/a 10.0 ppm 25 ppm * When calibrating the EAGLE 2 with the Auto Calibration or the Single Calibration method, the calibration gas value must be equal to or higher than the alarm 1 setting. See “Updating the Alarm Point Settings” on page 113 for instructions to change the alarm points if necessary for the desired calibration gas value. Table 2: EAGLE 2 Specifications Sampling Sample Draw Method Response T90 Within 30 Seconds Time Display Graphics LCD Display Operating -20°C to 50°C/Below 85% RH (Without Condensation) Temperature & Humidity Indication Combustible Gas (LEL), Catalytic Type Sensor Accuracy -10°C to 40°C: 5% of full scale -20°C to 50°C: 6% of full scale Combustible Gas (ppm), Catalytic Type Sensor ± 25 ppm or ± 5% of reading (whichever is greater) Hydrogen Sulfide ± 5% of reading or ± 2 ppm H2S (whichever is greater) Carbon Monoxide ± 5% of reading or ± 5 ppm CO (whichever is greater) EAGLE 2 Operator’s Manual Specifications 3 Safety/ Regulatory 186718 CSA classified as Intrinsically Safe. Exia. Class I, Groups A, B, C, & D. Temperature Code T3C. Power Four C size alkaline batteries, standard Supply Four C size Ni-MH batteries, optional Continuous Alkaline Batteries: 16 Hours (Non Alarm Operation, Fully Charged) Operating Ni-MH Batteries: 18 Hours (Non Alarm Operation, Fully Charged) Hours @ 25 °C Case High-impact Plastic, RF Shielded, Dust and Weather Proof Standard 5 foot hose Accessories Hydrophobic probe Shoulder Strap Optional Rechargeable NiMH Batteries Accessories 115 VAC Charger 12 VDC Charger Hoses of Various Lengths, See “General Parts List” on page 83. Dilution Fitting (1:1 and 3:1) Various Probes, See “General Parts List” on page 83 Data Logger Management Program (Windows® 2000, XP, and Vista) Maintenance Data Loader Program (Windows® 2000, XP, and Vista) IrDA/USB Cable for connecting to a computer when using the Data Logger Management Program and Maintenance Data Loader Program (not needed if computer has an infrared port) Dimensions Approximately 171(H) x 65(W) x 39(D) mm (5.6”H x 2.5”W x 1.5”D) and Weight Approximately 310 g (11 oz.) About this Manual The EAGLE 2 Operator’s Manual uses the following conventions for notes, cautions, and warnings. NOTE: Describes additional or critical information. CAUTION: Describes potential damage to equipment. WARNING: Describes potential danger that can result in injury or death. The EAGLE 2 Operator’s Manual is organized as follows: Chapter 1 is an introduction to the EAGLE 2. Chapter 2 describes the components of the EAGLE 2. 4 About this Manual EAGLE 2 Operator’s Manual Chapter 3 describes the operation of the EAGLE 2. Chapter 4 describes Calibration Mode which allows you to calibrate the EAGLE 2’s active channels. Chapter 5 describes the EAGLE 2’s maintenance requirements and procedures. Appendix A describes calibration of the EAGLE 2 using a sample bag. Appendix B describes Setup Mode which allows you to configure different parameters of the EAGLE 2. Appendix C describes the sub PCBs that are installed for optional sensors and how they affect gas and channel configuration. Appendix D describes the PID sensors and the operation of the EAGLE 2 with a PID sensor installed. Appendix E describes the ESM-01 sensors and the operation of the EAGLE 2 with an ESM-01 sensor installed. Appendix F describes the TC sensors and the operation of the EAGLE 2 with a TC sensor installed. Appendix G describes the infrared CO2 sensors and the operation of the EAGLE 2 with an infrared CO2 sensor installed. Appendix H describes the infrared methane sensors and the operation of the EAGLE 2 with an infrared methane sensor installed. Appendix I describes the infrared hydrocarbon sensor and the operation of the EAGLE 2 with an infrared hydrocarbon sensor installed. Appendix J describes the operation of the EAGLE 2 in Methane Elimination Mode. Appendix K describes the operation of the EAGLE 2 in Bar Hole Mode. Appendix L describes the operation of the EAGLE 2 in Leak Check Mode. Appendix M describes the Tank Tester Model of the EAGLE 2. Appendix N describes the operation of the EAGLE 2 in Inert Mode EAGLE 2 Operator’s Manual About this Manual 5 Chapter 2: Description Overview This chapter describes the EAGLE 2 instrument and accessories. Instrument Description The EAGLE 2 includes the case, sensors, LCD, control buttons, printed circuit boards, alarm LEDs, infrared communication port, buzzer, battery case and batteries, and flow system. Alarm LEDs Inlet Fitting LCD Display Control Buttons PO WER DISP LAY AIR RANGE ENTE R ADJUST RES ET NO YE S SHIFT Figure 1: Component Location, Top View 6 Overview EAGLE 2 Operator’s Manual Top Case Handle Strap Case Screw, 3X (Hidden From view) Case Foot, 6X Bottom Case Figure 2: Component Location, Side View Buzzer Inlet Fitting Exhaust Fitting Charging Jack Battery Case Thumbscrew Infrared Port Figure 3: Component Location, Front & Back EAGLE 2 Operator’s Manual Instrument Description 7 Case The EAGLE 2’s sturdy, high-impact plastic case is radio frequency (RF) resistant and is suitable for use in many environmental conditions, indoors and out. The case is dust proof and water resistant. It’s two main components, the top case and bottom case, are held together with three screws located on the bottom case. The interface between the top case and bottom case is gasketed. A sturdy, well balanced handle on the top case allows you to hold the instrument comfortably. A clear plastic window is located on the top case to the front of the handle for viewing the LCD. A removable battery case is located at the rear of the bottom case. A thumbscrew secures the battery case to the bottom case. The interface between the battery case and the bottom case is gasketed. Six raised feet on the bottom of the case, four on the bottom case and two on the battery compartment, raise the EAGLE 2 slightly from the surface on which it rests. Sensors The EAGLE 2 uses up to six sensors to monitor combustible gas, oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), and various other toxic gases simultaneously. The sensors are located inside the EAGLE 2 bottom case and are installed in the flow chamber. The sensors described below are the four standard sensors. See “Appendix D: PID Sensors” for a description of the PID sensors, “Appendix E: ESM-01 Toxic Sensors” for a description of the ESM-01 toxic sensors, “Appendix F: TC Sensors” for a description of the TC sensors, “Appendix G: Infrared Carbon Dioxide Sensors” for a description of the IR CO2 sensors, “Appendix H: Infrared Methane Sensor” for a description of the IR methane sensors, and “Appendix I: Infrared Hydrocarbon Sensor” for a description of the IR hydrocarbon sensor. The standard sensors use different detection principles as described below. Catalytic Combustible Gas Sensor (LEL Sensor) The catalytic combustible gas (LEL) sensor detects combustible gas in the %LEL range. It uses a catalytic element for detection. The reaction of gas with oxygen on the catalyst causes a change in the resistance of the element which changes the current flowing through it. The current is amplified by the EAGLE 2’s circuitry, converted to a measurement of combustible gas concentration, and displayed on the LCD. The LEL sensor housing includes a sintered metal flame arrestor on one end that allows gas to diffuse into the sensor. On the other end, five pins extend from the sensor. The sensor cable connects to these pins on one end and terminates in a four-position connector on the other end which plugs into the HC socket on the main PCB (see “Main PCB” on page 12). 8 Instrument Description EAGLE 2 Operator’s Manual Oxygen Sensor The O2 sensor is a galvanic type of sensor. A membrane behind the openings on the sensor face allows gas to diffuse into the sensor at a rate proportional to the partial pressure of oxygen. The oxygen reacts in the sensor and produces a voltage proportional to the concentration of oxygen. The voltage is measured by the EAGLE 2’s circuitry, converted to a measurement of gas concentration, and displayed on the LCD. The sensor includes a short cable that terminates in a round 7-position connector. It mates with the OXY pins on the main PCB (see “Main PCB” on page 12). CO and H2S Sensors The CO and H2S sensors are electrochemical sensors that consist of three precious metal electrodes in a dilute acid electrolyte. A gas permeable membrane covers the sensor face and allows gas to diffuse into the electrolyte. The gas reacts in the sensor and produces a current proportional to the concentration of the target gas. The current is amplified by the EAGLE 2’s circuitry, converted to a measurement of gas concentration, and displayed on the LCD. The CO and H2S sensors are physically very similar. Except for their markings and wire colors, they look almost identical. A three-position connector at the end of a 2-wire cable from each sensor plugs into a socket on the main PCB. The sockets on the main PCB for the CO and H2S sensors are labeled CO and H2S. Normally, the CO connector plugs into the CO socket and the H2S plugs into the H2S socket. However, because of the way that the main PCB circuitry is arranged, if the CO sensor is plugged into the H2S socket and the H2S sensor is plugged into the CO socket, the sensors will still operate properly and the CO and H2S readings will still appear on the channels that are programmed for those gases. LCD A digital LCD (liquid crystal display) is visible through a clear plastic window in the top case. The LCD simultaneously shows the gas reading for all installed sensors. The LCD also shows information for each of the EAGLE 2’s operating modes. EAGLE 2 Operator’s Manual Instrument Description 9 Control Buttons Four control buttons are located below the LCD. They are, from left to right, POWER ENTER RESET, DISPLAY ADJUST NO, AIR ▲ YES, and RANGE ▼ SHIFT. Table 3: EAGLE 2 Control Button Functions Button Function(s) POWER ENTER turns the EAGLE 2 on and off RESET silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions, values, and settings into the EAGLE 2’s microprocessor DISPLAY ADJUST activates Display Mode NO silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions into the EAGLE 2’s microprocessor AIR ▲ YES activates the demand zero function (adjusts the EAGLE 2’s fresh air reading) silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions into the EAGLE 2’s microprocessor moves the cursor on the LCD up the screen increases the value of a parameter available for adjustment scrolls through parameter options RANGE ▼ SHIFT changes the detection units of the combustible gas channel (when Catalytic Units is set to CHANGE OK in Setup Mode) silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions into the EAGLE 2’s microprocessor moves the cursor on the LCD down the screen decreases the value of a parameter available for adjustment scrolls through parameter options 10 Instrument Description EAGLE 2 Operator’s Manual Printed Circuit Boards (PCBs) Display PCB Main PCB I.S. Barrier PCB (not visble) Figure 4: EAGLE 2 PCBs The EAGLE 2’s PCBs analyze, record, control, store, and display the information collected. The main PCB and I.S. barrier PCB are located in the bottom case. The display PCB is located in the top case. The display PCB and I.S. barrier PCB are not user serviceable and are not involved in any user performed maintenance. The main PCB is not user serviceable, but it is involved in the replacement of sensors, so it is described below. EAGLE 2 Operator’s Manual Instrument Description 11 Display connector H2S Connector (H2S) CO Connector (CO) LEL Connector (HC) I.S. Barrier Connector Oxygen Connector Pins (OXY) DP Switch Connector Pump Connector Float Probe Connector IR Communication Sensor/Transmitter Figure 5: Main PCB The main PCB is located on the right side of the bottom case. It slides into guiding grooves at the bottom, front, and rear of the bottom case. It is held in place by the top case. Connectors for the sensors, differential pressure switch, pump, display PCB, optional float probe, and I.S. barrier PCB are located on the main PCB. In addition, an IR transmitter/receiver is located at the front of the PCB behind the IR port on the front of the bottom case. Alarm LEDs Two sets of red alarm LEDs (light emitting diodes) are visible through two raised, frosted plastic lenses in the top case. Each set has two LEDs. They are above the LCD, one above the left corner and one above the right corner. The alarm LEDs alert you to gas, low battery, and failure alarms. Infrared Communications Port An infrared (IR) communications port is located on the left front of the bottom case when the instrument is viewed from the front. The data transmitted through the port is in standard IrDA protocol. A computer’s 12 Instrument Description EAGLE 2 Operator’s Manual infrared port or an IrDA/USB cable connected to a USB port can be used to download data saved by the EAGLE 2 to a computer using the Eagle 2 Data Logger Management Program. See the Data Logger Management Program operator’s manual for data logging and downloading instructions. Buzzer A solid-state electronic buzzer is located on the front of the top case. It is a panel mounting type of buzzer and is water resistant and sealed to the inside of the top case with an O-ring. The buzzer sounds for gas alarms, malfunctions, low battery voltage, and as an indicator during use of the EAGLE 2’s many display and adjustment options. Battery Case & Batteries Four C-size alkaline batteries (standard) or optional rechargeable C-size Ni-MH batteries power the EAGLE 2. They are installed in the battery case which is located at the rear of the bottom case. The battery case is secured to the bottom case with a thumbscrew. Instrument run time is dependent upon battery type. At 25°C, alkaline batteries power the EAGLE 2 for 16 hours of non-alarm operation. Ni-MH batteries will power the EAGLE 2 for 18 hours of non-alarm operation. The current battery voltage is viewable in Display Mode (see “Display Mode” on page 39). When the EAGLE 2 detects low battery voltage, a low battery warning is activated. When battery voltage is too low for operation, the EAGLE 2 sounds a dead battery alarm. The alkaline or Ni-MH batteries can be accessed for replacement by unscrewing the thumbscrew that secures the battery case to the bottom case and pulling the battery case away from the bottom case. The Ni-MH batteries can be recharged by using the EAGLE 2 charger (see “Replacing or Recharging the Batteries” on page 71). NOTE: Use of batteries or battery chargers not specified by RKI Instruments, Inc. will void the CSA classification and may void the warranty. WARNING: To prevent ignition of a hazardous atmosphere, batteries must only be changed or charged in an area known to be nonhazardous. EAGLE 2 Operator’s Manual Instrument Description 13 Flow System The EAGLE 2 flow system consists of the inlet fitting, hydrophobic filter, pump, internal tubing, differential pressure (DP) switch, sensor chamber, charcoal filter, and exhaust fitting. Inlet Fitting The inlet fitting is on the right front (when viewed from the front) of the bottom case. It is a nickel plated brass quick connect fitting. It mates with either the sample hose or with the hydrophobic probe. Hydrophobic Filter The hydrophobic filter is located in the bottom case above the sensors. Normally the hydrophobic probe accessory (see “Hose and Probe” on page 15) will prevent water and particulate contamination from entering the flow system, but if the probe is not used, the hydrophobic filter will stop water and particulates from penetrating further into the flow system. If it becomes dirty or water logged, replace it (see “Replacing the Hydrophobic Filter” on page 76). Pump A diaphragm pump inside the rear of the bottom case draws the sample to the sensors. It can draw sample from as far as 125 feet from the EAGLE 2. CAUTION: Sample hose lengths of more than 125 feet are not recommended for the EAGLE 2 because of flow rate reduction and increased response time. Consult RKI Instruments, Inc. for sample hose lengths longer than 125 feet. Internal Tubing The flow system includes polyurethane tubing to route the sample between the various components of the flow system. The internal sample tubing is not user serviceable. Differential Pressure (DP) Switch The DP switch is inside the front of the bottom case. It senses the EAGLE 2’s flowrate by monitoring the pressure drop between points in the flow system. When the flowrate becomes too low for safe operation of the EAGLE 2, a set of contacts inside it open and the EAGLE 2 indicates a low flow alarm. Sensor Chamber A PVC block in the bottom case is configured to accept the four gas sensors. It routes the sample to each sensor. The LEL sensor and the oxygen sensor are retained in the sensor chamber by brackets. The CO and H2S sensors are each pushed past two sealing O-rings into the chamber and are retained by 14 Instrument Description EAGLE 2 Operator’s Manual the O-ring compression force. Charcoal Filter The charcoal filter is located in the front of the flow chamber next to the CO sensor. It contains activated charcoal. The CO sensor will respond if exposed to H2S and certain hydrocarbon gases. The charcoal filter scrubs these gases out of the sample to avoid false CO readings. If false or elevated CO readings are noticed, especially in the presence of H2S, change the charcoal filter. The charcoal inside the filter cannot be replaced; the entire filter must be replaced. Exhaust Fitting The exhaust fitting is located below the inlet fitting. It routes the gas sample out of the EAGLE 2. It includes a female 10-32 thread that can be used for the installation of a hose barb or other type of fitting that has a male 10-32 thread so that the exhaust can be routed to a particular location with flexible tubing if desired. Standard Accessories Standard accessories include the shoulder strap, the sample hose, and the hydrophobic probe. Shoulder Strap A comfortable elastic shoulder strap clips to the EAGLE 2 at the front and rear of the top case. It clips to stainless steel rings that are installed in features on the top case. It can be removed from the EAGLE 2 by opening the clip at each end of the strap and removing it from the strap ring at the front and rear of the top case. Hose and Probe A 5 foot polyurethane sample hose and a 10 inch hydrophobic probe are included as standard. The hose has a male quick connect fitting on one end and a female quick connect fitting on the other end. The probe has a male quick connect fitting. Normally, the male end of sample hose is installed in the EAGLE 2 inlet fitting and the probe is installed in the female end of the hose. However, if the sample hose is not needed for monitoring a particular area, the probe may be installed directly to the inlet fitting. Sample hose lengths are available from 5 feet (standard length) to 125 feet (see “General Parts List” on page 83). A teflon lined hose is provided with all units that contain a PID sensor. This hose must be used when operating a PID EAGLE 2 (see “Appendix D: PID Sensors” on page 135). EAGLE 2 Operator’s Manual Standard Accessories 15 CAUTION: Sample hose lengths of more than 125 feet are not recommended for the EAGLE 2 because of flow rate reduction and increased response time. Consult RKI Instruments, Inc. for hose lengths longer than 125 feet. The probe includes a replaceable particle filter and hydrophobic filter disk that prevent particulates and water from entering the EAGLE 2’s flow system. See “Replacing the Hydrophobic Probe’s Particle Filter and Hydrophobic Filter Disk” on page 74 for instructions to replace the particle filter and hydrophobic filter disk. NOTE: When using the probe with a PID EAGLE 2, be sure that the particle filter is not installed. Sample Hose Probe Figure 6: Sample Hose and Hydrophobic Probe Optional Accessories Several optional accessories are available for the EAGLE 2. They include rechargeable Ni-MH batteries, battery chargers, various special probes, and dilution fittings. The most commonly used optional accessories are described below. Detailed instructions regarding the use of these and other available accessories are included in other parts of this manual. Data logging accessories are briefly described in “Data Logging” on page 52. 16 Optional Accessories EAGLE 2 Operator’s Manual Rechargeable Ni-MH Batteries Rechargeable Ni-MH batteries are available for the EAGLE 2. A fully charged set of Ni-MH batteries will power the EAGLE 2 for 18 hours. The batteries will last for a minimum of 500 charge cycles. See “General Parts List” on page 83 for ordering information. Battery Chargers Three battery chargers are available for the EAGLE 2 to charge the optional Ni-MH batteries, the standard AC charger, a DC charger with a vehicle plug adapter, and an AC/DC charger with a vehicle plug adapter. AC Charger The standard AC charger consists of the charging module, which includes all of the charging circuitry, and an AC adapter. The charging module includes a five foot cable with a connector on the end that mates with the EAGLE 2 charging socket. The AC adapter plugs into a 115 VAC wall outlet and connects to the charging module with a jack on the end of a five foot DC output cable. The AC adapter will also work for 100 VAC or 220 VAC if an appropriate plug adapter is provided. The AC charging station is shown below in Figure 7. AC Adapter Charging Module Figure 7: EAGLE 2 AC Charger EAGLE 2 Operator’s Manual Optional Accessories 17 DC Charger An optional DC powered charger is available with a vehicle plug 12 VDC adapter. It uses the same charging module as the standard AC charger. Vehicle Plug DC Adapter Charging Module Figure 8: EAGLE 2 DC Charger AC/DC Charger A charger is also available that includes both the AC adapter and the 12 VDC vehicle plug adapter. The charging module is the same as the one used for the AC charger and the DC charger. Optional Probes Various optional probes designed for specific applications are available for the EAGLE 2. They include the following: 30 inch aluminum probe Figure 9: 30 Inch Aluminum Probe This probe is designed for applications where it is necessary to put the probe tip in areas that are out of reach with the standard probe. A small breather hole near the end of the probe tube prevents interruption of sampling and a low flow alarm if the probe tip is blocked. 18 Optional Accessories EAGLE 2 Operator’s Manual 30 inch stainless steel probe Figure 10: 30 Inch Stainless Steel Probe This probe is physically the same as the 30 inch aluminum probe and is intended for applications where a high level of corrosion resistance is required in the long probe tube. 4 foot stainless steel probe Figure 11: 4 Foot Stainless Steel Probe This probe is designed for areas where it is necessary to put the probe tip in areas that are out of reach for even the 30 inch probes. A stainless steel probe tube is used because the length of the probe tube requires a high degree of rigidity. Stainless steel is more rigid than other normally used materials. A small breather hole near the end of the probe tube prevents interruption of sampling and a low flow alarm if the probe tip is blocked. Barhole probe Figure 12: Barhole Probe This probe is designed specifically for barhole testing. See “Appendix K: Using the EAGLE 2 in Bar Hole Mode” for an in-depth discussion of using the EAGLE 2 in Bar Hole Mode. EAGLE 2 Operator’s Manual Optional Accessories 19 10 inch probe with dust filter Figure 13: 10 Inch Probe With Dust Filter This probe is designed for use where drawing water or moisture into the EAGLE 2 is not a concern. Instead of a hydrophobic filter, a cotton dust filter is used. 32 inch telescoping probe with dust filter This probe is designed for use where it is necessary to put the probe tip in areas not accessible with the 10 inch probe with dust filter and applications where the probe tube must be collapsible for storage. 7 foot telescoping probe with dust filter This probe is designed for use where it is necessary to put the probe tip in areas not accessible with the 32 inch telescoping probe with dust filter and applications where the probe tube must be collapsible for storage. See “General Parts List” on page 83 for probe ordering information. 20 Optional Accessories EAGLE 2 Operator’s Manual External Dilution Fittings Two external dilution fittings are available for the EAGLE 2, a 1:1 dilution fitting and a 3:1 dilution fitting. They are designed to mate with the inlet fitting and accept a sample hose or probe. The fittings are made with brass and nickel plated brass and are appropriate for use with the four standard gases. The 1:1 fitting is normally used when it is necessary to introduce air into a sample that has no oxygen or a very low level of oxygen, such as a nitrogen purged sample. Both the 1:1 and 3:1 fittings can also be used when one of the target gas levels in the sample area will likely be present in a concentration above the detection range for that gas. Since the fittings partially consist of unplated brass, they are not appropriate for detection of elevated levels of H2S or of gases that are easily absorbed such as Cl2 or SO2. 1:1 Dilution Fitting 3:1 Dilution Fitting Figure 14: 1:1 and 3:1 Dilution Fittings EAGLE 2 Operator’s Manual Optional Accessories 21 Chapter 3: Operation Overview This chapter explains how to use the EAGLE 2 to perform confined space entry monitoring or general area monitoring in Normal Mode. There are three operational modes in Normal Mode: Measuring Mode, Display Mode, and Calibration Mode. While in Normal Mode, the unit is normally operating in Measuring Mode. Display Mode and Calibration Mode are accessible from Measuring Mode. Display Mode is described in this chapter. Calibration Mode is described in “Chapter 4: Calibration Mode” on page 54. Special versions of the EAGLE 2 can also operate in Leak Check Mode and Bar Hole Mode. See “Appendix K: Using the EAGLE 2 in Bar Hole Mode” and “Appendix L: Using the EAGLE 2 in Leak Check Mode” for operating instructions for Bar Hole and Leak Check Mode, respectively. Start Up This section explains how to start up the EAGLE 2, get it ready for operation, and turn it off. NOTE: The screens illustrated in this section are for a standard 4-gas unit. The screens displayed by your EAGLE 2 may be slightly different. Turning On the EAGLE 2 To illustrate certain functions, the following description of the EAGLE 2 start up sequence assumes that the following menu items in Setup Mode are turned on: LUNCH BREAK, CAL REMINDER, and USER/ STATION ID. If any of these items are turned off, then the corresponding screens will not appear. The EAGLE 2 may be used with a sample hose or with the probe installed directly to the inlet fitting. Determine which configuration works best for your application. 1. Connect the sample hose or probe to the EAGLE 2’s quick connect inlet fitting. 2. If using a sample hose, connect the probe to the sample hose’s quick connect fitting. 3. Press and briefly hold down the POWER ENTER RESET button. Release the button when you hear a beep. 22 Overview EAGLE 2 Operator’s Manual 4. The LCD will show the following screen for about ten seconds. GAS MONITOR EAGLE 2 5. The Battery Voltage Screen appears for a few seconds. BATTERY MIN: 4.3 VOLTS BATTERY NOW: 5.2 VOLTS 6. The Active Gases Screen appears for a few seconds indicating which channels are active and their target gas. ACTIVE GASES CH4 OXY H2S CO 7. If LUNCH BREAK is turned on (see “Updating the Lunch Break Setting” on page 128), the Resume Measurement Screen appears. The unit counts down from 5 seconds in the lower right corner of the LCD to the right of “MEASUREMENTS”. LUNCH BREAK MODE ON RESUME PEAK AND TWA MEASUREMENTS? 2 To continue accumulating peak and time-weighted average (TWA) readings from the last time the EAGLE 2 was used, press and release the AIR ▲ YES button before the countdown reaches 0 or allow the countdown to reach 0. If you do not press the AIR ▲ YES button within the 5 second countdown, the EAGLE 2 automatically resumes accumulating the peak and TWA readings.The EAGLE 2 will also continue to keep track of operating time including the operating time EAGLE 2 Operator’s Manual Start Up 23 from the last time the EAGLE 2 was used. See “Time in Operation Screen” on page 50 for more information about how the EAGLE 2 tracks the operating time. The short-term exposure limit (STEL) reading is reset each time the EAGLE 2 is turned on. To reset the accumulation of these measurements, press and release the DISPLAY ADJUST NO button before the countdown reaches 0. 8. The gas alarm setpoints are displayed by three screens in sequence: the Low Alarm Screen, High Alarm Screen, and STEL/TWA Alarm Screen. Each screen remains on the LCD for three seconds. A CH4 10 %LEL L L OXY 19.5 vol% O A H2S 10.0 ppm WR CO 25 ppm M CH4 10 vol% S A CH4 50 %LEL HL OXY 23.5 vol% I A H2S 30.0 ppm GR CO 50 ppm HM CH4 50 vol% S ALARMS STEL & TWA H2S(ppm) 15.0 10.0 CO (ppm) 200 25 9. After the alarm screens, if CAL REMINDER is turned on, the screen that appears next depends on how CAL PAST DUE ACT is set in the Setup Mode Menu (see “Updating the Calibration Past Due Action Setting” on page 122). 24 Start Up EAGLE 2 Operator’s Manual If the unit is due for calibration and CAL PAST DUE ACT is set to CONFIRM TO CAL, then the following screen displays and the buzzer sounds in a double pulsing pattern. CALIBRATION DATE IS PAST DUE PERFORM CALIBRATION? To perform a calibration, press and release the AIR ▲ YES button. The EAGLE 2 will enter Calibration Mode and the LCD will show the Calibration Mode main menu. See “Chapter 4: Calibration Mode” on page 54 for instructions to calibrate the EAGLE 2. When you are done with the calibration and exit Calibration Mode, the unit will begin the startup sequence. If the calibration was successful, the screen above will not appear again until the unit is due for calibration. If the calibration was not successful, the screen above will again appear in the startup sequence. To continue without performing a calibration, press and release the DISPLAY ADJUST NO button. If the unit is due for calibration and CAL PAST DUE ACT is set to MUST CALIBRATE, then the following screen displays and the buzzer sounds in a double pulsing pattern. CALIBRATION DATE IS PAST DUE ENTER TO PERFORM CALIBRATION The EAGLE 2 cannot be used until a successful calibration has been performed. Press and release the ENTER button to enter Calibration Mode. See “Chapter 4: Calibration Mode” on page 54 for instructions to calibrate the EAGLE 2. When you are done with the calibration and exit Calibration Mode, the unit will begin the startup sequence. If the calibration was successful, the screen above will not appear again until the unit is due for calibration. If the calibration was not successful, the screen above will again appear in the startup sequence. If the unit is due for calibration and CAL PAST DUE ACT is set to EAGLE 2 Operator’s Manual Start Up 25 NOTIFICATION ONLY, then the following alert screen displays and the buzzer sounds in a double pulsing pattern. CALIBRATION DATE IS PAST DUE Press and release the POWER ENTER RESET button to acknowledge the alert and continue with the startup sequence. 10. The Date/Time Screen appears for a few seconds. 9/12/2008 15:00:00 11. If USER/STATION ID is turned on (see “Turning the User/Station ID Function On or Off” on page 116), the ID Screen appears for a few seconds. USER ID MIKE STATION ID PUMP 1 SERIAL NUMBER E2A515 If USER/STATION ID is turned off, only the serial number is shown. 12. If the EAGLE 2 experiences a sensor failure during start up, a screen indicating which sensor failed appears and the buzzer sounds a pulsing tone twice per second. In the example below, the H2S sensor has failed. FAILED SENSOR(S) < > < > < > ENTER TO CONTINUE If you wish to continue, press and release the POWER ENTER RESET 26 Start Up EAGLE 2 Operator’s Manual button to acknowledge the failure. The gas reading for the failed sensor will be replaced by “XXX”. Replace the failed sensor as soon as possible. 13. The EAGLE 2 is now monitoring for gas in Measuring Mode. The Normal Operation Screen appears displaying the current gas reading for each target gas. CH4 0%LEL OXY 20.9vol% H2S 0.0ppm CO 0ppm Performing a Demand Zero Before using the EAGLE 2, it is recommended to set the fresh air readings for the target gases by performing a demand zero. This will set the CH4, H2S, and CO channels to zero and the OXY channel to 20.9%. 1. Find a fresh-air environment. This is an environment free of toxic or combustible gases and of normal oxygen content (20.9%). 2. Turn on the unit as described above in “Turning On the EAGLE 2”. 3. Press and hold the AIR ▲ YES button. The LCD prompts you to continue holding the AIR ▲ YES button and the buzzer will pulse while you hold the button. 4. Continue to hold the AIR ▲ YES button until the LCD prompts you to release it. The EAGLE 2 will set the fresh air reading for all channels. Start up is complete and the unit is now ready for monitoring. Turning Off the EAGLE 2 1. Press and hold the POWER ENTER RESET button. 2. The buzzer will pulse for about five seconds. 3. Release the button when GOODBYE and the RKI logo appear on the display. When GOODBYE and the RKI logo disappear and the backlight turns off, the unit is off. EAGLE 2 Operator’s Manual Start Up 27 Using the Battery Charger for Continuous Operation WARNING: Use the EAGLE 2 charger’s continuous operation mode to power the EAGLE 2 only if NiMH batteries are installed in the EAGLE 2. Do not use the charger for continuous operation if alkaline batteries are installed. The battery charger can be used with an AC adapter or a vehicle plug DC adapter to run the EAGLE 2 in continuous operation instead of charging the batteries. 1. Place the EAGLE 2 in the area to be monitored. 2. Plug the power adapter into either an AC outlet or into a vehicle outlet depending on which charger is being used. 3. Set the switch on the module to “CONT. OPERAT.”. 4. Make sure the EAGLE 2 is off. 5. Make sure the adapter and module are connected. 6. Make sure that the batteries are charged. NOTE: If the batteries are not charged, the EAGLE 2 will not turn on and will instead give a “Charge Batteries” indication when it is powered up after Step 7 below. 7. Insert the module’s round plug into the EAGLE 2’s charging jack as shown in Figure 15 below. Figure 15: Connecting the EAGLE 2 to the Charger 28 Using the Battery Charger for Continuous Operation EAGLE 2 Operator’s Man- 8. See “Chapter 3: Operation” on page 22 for instructions for start-up and operation of the EAGLE 2. 9. While the charging module is powering the EAGLE 2, its amber LED will be off and its green LED will be on. Measuring Mode, Normal Operation When the EAGLE 2 completes its startup sequence, it is in Measuring Mode. In Measuring Mode the EAGLE 2 continuously monitors the sampled atmosphere and displays the gas concentrations present for its target gases. In a low-light environment, press and release any button to turn on the display backlight. See “Updating the Backlight Delay Setting” on page 118 to program backlight duration. If the Confirmation Alert feature is turned on in the Setup Mode menu (see “Updating the Confirmation Alert Setting” on page 125), the EAGLE 2 beeps periodically to confirm that it’s operating. Monitoring an Area 1. Start up the EAGLE 2 as described above in “Start Up” on page 22. It is now in Measuring Mode. CH4 0%LEL OXY 20.9vol% H2S 0.0ppm CO 0ppm 2. Take the EAGLE 2 to the monitoring area. Put the probe tip in the area to be monitored. NOTE: If you notice that water has entered the flow system through the probe, replace the probe’s hydrophobic filter and inspect the O-ring for filter particles. See “Replacing the Hydrophobic Probe’s Particle Filter and Hydrophobic Filter Disk” on page 74 for instructions to replace the hydrophobic filter. 3. Wait 10 - 15 seconds and observe the display for gas readings. If a reading is observed, allow the reading to stabilize to determine the gas concentrations present. EAGLE 2 Operator’s Manual Measuring Mode, Normal Operation 29 NOTE: Response time increases with the length of the sample hose. Long sample hoses will require more time to show a response at the EAGLE 2. The maximum sample hose length recommended for the EAGLE 2 is 125 feet. Consult RKI Instruments, Inc. for longer sample hose lengths. 4. If a gas alarm occurs, take appropriate action. See “Responding to Alarms” on page 38. Using Optional Sample Hoses The standard sample hose for the EAGLE 2 is 5 feet long. Optional hoses are available up to 125 feet long. If you are considering using a longer hose, keep in mind that a longer hose will increase the EAGLE 2’s response time and the flowrate may decrease close to the low flow alarm point. CAUTION: Sample hose lengths of more than 125 feet are not recommended for the EAGLE 2 because of flow rate reduction and increased response time. Consult RKI Instruments, Inc. for hose lengths longer than 125 feet. The chart below illustrates how response time is affected by the sample hose length. Table 4: EAGLE 2 Response Time vs. Sample Hose Length Typical Time to 90% Hose Used of Response (T90) Probe Only 12 seconds Probe & 5 Foot Hose 15 seconds Probe & 25 Foot Hose 25 seconds Probe & 50 Foot Hose 35 seconds Probe & 75 Foot Hose 45 seconds Probe & 100 Foot Hose 60 seconds Probe & 125 Foot Hose 75 seconds Using Exhaust Tubing The EAGLE 2’s exhaust fitting has a female 10-32 thread to allow for the installation of a hose barb fitting with a 10-32 thread to which a flexible exhaust tube can be connected. If you utilize this feature, the tubing used must have a minimum internal diameter of 1/8 inch. RKI Instruments, Inc. recommends using flexible polyurethane tubing with a maximum exhaust tube length of 20 feet. Consult RKI Instruments, Inc. for exhaust tubing 30 Measuring Mode, Normal Operation EAGLE 2 Operator’s Manual lengths longer than 20 feet. Combustible Gas Detection There are three issues to keep in mind when monitoring for combustible gas. The catalytic combustible sensor will respond to any combustible gas. The standard calibration gas for the EAGLE 2 catalytic combustible channel is methane (CH4). If the instrument is calibrated to a different combustible gas, such as hexane or propane, the gas name for the catalytic combustible channel will reflect the target gas. The table below lists the conversion factors for several hydrocarbon gases if the EAGLE 2 is calibrated to methane. To use this table, multiply the display reading on the combustible gas channel by the factor in the appropriate row to obtain the actual gas concentration. For example, if you are detecting pentane and the display reads 10% LEL for the catalytic combustible channel, you actually have 10% LEL x 1.35 = 13.5% LEL pentane present. Table 5: Full Response Mode Conversion Factors (Methane Calibration) Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor Acetone 1.49 0.74 Isobutane 1.51 0.54 Benzene 2.58 0.62 Isopropanol 2.17 0.87 Butyl Acrylate * 0.85 Methane 1.00 1.00 Butyl Acetate 3.42 0.89 Methanol 1.49 1.79 2-Butyl Alcohol 2.14 0.73 Methyl Acetate 1.40 0.87 1-Butyl Alcohol 4.39 1.23 Methyl Acrylate 2.12 1.19 Cyclohexane 2.72 0.71 Methyl Ethyl 2.66 0.74 Keytone Cumene 4.46 0.80 Methyl Isobutyl 3.33 0.80 Keytone Ethylene 5.21 6.46 Mixed Xylenes 3.47 0.76 Dichloride Ethyl Alcohol 1.47 0.97 Nonane 4.24 0.68 Ethyl Chloride 1.52 1.00 Pentane 1.38 0.41 Ethyl Acrylate 3.38 0.95 Propane 1.23 0.51 Hexane 2.56 0.56 Styrene 4.46 0.80 Hydrogen 1.24 0.99 Toluene 3.21 0.70 EAGLE 2 Operator’s Manual Measuring Mode, Normal Operation 31 Table 5: Full Response Mode Conversion Factors (Methane Calibration) Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor Vinyl Acetate 2.36 1.23 Monomer * Vapor pressure too low for significant LEL reading The EAGLE 2 provides the catalytic combustible sensor with some protection against exposure to high levels of combustible gas which can damage the sensor. It does this by turning off the combustible sensor power temporarily when it determines that an over scale (more than 100% LEL) concentration of combustible gas is present that may damage the sensor. Nevertheless, concentrations of combustible gas of more than 100% LEL can still affect the zero level or calibration of the combustible sensor if the concentration is high enough. CAUTION: Do not expose the catalytic combustible sensor to high concentrations of combustible gas such as that from a butane lighter. Exposure to high concentrations of combustible gas may adversely affect the performance of the sensor. CAUTION: Any rapid increase in the combustible gas reading on the catalytic combustible channel followed by a declining or erratic reading may indicate a gas concentration above the LEL which may be hazardous. Some gases such as silicone vapors, chlorinated hydrocarbons, and sulphur compounds can contaminate the detection elements inside the combustible sensor damaging the sensor and result in reduced response to combustible gas. Make every effort to avoid these gases. The catalytic combustible sensor has an integral H2S scrubber for protection from H2S exposure resulting from normal use, but you should avoid exposure to high levels of H2S and other sulphur compounds. Monitoring Combustible Gas in the PPM or %Volume Range The standard factory configuration for the EAGLE 2 allows the user to use the RANGE ▼ SHIFT button to change the displayed detection units of the catalytic combustible channel between %LEL, ppm, and %volume. It is possible to disable this capability and set the EAGLE 2 to display only one of the detection units by using the Catalytic Units menu item in Setup Mode. See “Setting the Catalytic Detection Units” on page 112 for instructions to set this Setup Mode Menu item. 32 Measuring Mode, Normal Operation EAGLE 2 Operator’s Manual The detection range of the combustible catalytic channel when set for ppm or %volume will correspond to 0 - 100% LEL for the configured gas. For example, the LEL for methane (CH4) is 5% volume, or 50,000 ppm. So if the catalytic combustible channel is displayed in terms of %volume, the full scale is 5.00% and if it is displayed in terms of ppm, the full scale is 50,000 ppm. If the Catalytic Units menu item in Setup Mode is set to CHANGE OK, the standard factory setting, then you can change the catalytic combustible channel’s units by pressing and releasing RANGE ▼ SHIFT. CH4 0%LEL RANGE CH4 0.00vol% OXY 20.9vol% SHIFT OXY 20.9vol% H2S 0.0ppm H2S 0.0ppm CO 0ppm CO 0ppm RANGE RANGE SHIFT SHIFT CH4 0ppm OXY 20.9vol% H2S 0.0ppm CO 0ppm Monitoring Combustible Gas in the PPM Range There are special considerations that must be taken into account when monitoring combustible gas in the ppm range with the catalytic combustible channel. Because of the high sensitivity in the lower part of the ppm range, the catalytic combustible channel needs more time than the warm-up period to stabilize after the EAGLE 2 is turned on if it is going to be used for ppm level detection. The reading increments in the ppm range are smallest in the lower part of the range and increase as the reading increases as follows: 5 ppm increments from 0 ppm to 200 ppm 10 ppm increments from 200 ppm to 1,000 ppm 50 ppm increments from 1,000 ppm to 10,000 ppm 250 ppm increments from 10,000 ppm to 50,000 ppm EAGLE 2 Operator’s Manual Measuring Mode, Normal Operation 33 If the catalytic combustible channel is configured for the user defined gas in Setup Mode (see “Configuring the Combustible Gas” on page 107), the ppm ratio defined for the gas must be considered. For example, if the ppm ratio is set higher than 50,000 ppm, then when the display units are set as ppm, the reading will not go above 50,000 ppm which is equivalent to 33 % LEL and 5 %volume. So if the gas reading is higher than 50,000 ppm, the ppm unit reading will indicate 50,000 ppm and also indicate an overscale condition. The %LEL and %volume unit readings will still increase up to 100% LEL and 15 %volume respectively, which are equivalent to 150,000 ppm. The catalytic combustible sensor is slightly affected by humidity. This is not apparent when the EAGLE 2 is used for %LEL or %volume detection, but because of the high sensitivity in the ppm range, significant humidity changes can affect the ppm reading, especially in the lower part of the range. Take care to allow the unit to acclimate to a new environment for about a minute and perform a demand zero in a fresh air location when you move between areas of different humidity. CAUTION: If the catalytic combustible channel is being calibrated with a gas concentration of 1000 ppm or lower, the a 24 inch humidifier must be used for accurate calibration. See “Chapter 4: Calibration Mode” on page 54 for more explanation and instructions for calibration. To monitor for combustible gas in the ppm range: 1. Start up the EAGLE 2 as described in “Start Up” on page 22. 2. Allow the EAGLE 2 to run for 3 - 5 minutes after the startup sequence is complete and it is in Measuring Mode. This allows the catalytic combustible sensor to stabilize sufficiently for ppm monitoring. NOTE: This extra stabilization period is not necessary if monitoring in the %LEL or %volume range. 3. Set the catalytic combustible channel’s units to be ppm by using the RANGE ▼ SHIFT button. 4. Perform a demand zero as described in “Performing a Demand Zero” on page 27. 5. Proceed to monitor for gas as described in “Monitoring an Area” on page 29. 34 Measuring Mode, Normal Operation EAGLE 2 Operator’s Manual Measuring Mode, Alarms This section covers alarm indications in Measuring Mode. It also describes how to reset the EAGLE 2 after an alarm has occurred and how to respond to an alarm condition. NOTE: False alarms may be caused by radio frequency (RF) or electromagnetic (EMI) interference. Keep the EAGLE 2 away from RF and EMI sources such as radio transmitters or large motors. Alarm Indications The EAGLE 2 will sound an alarm and flash the LED arrays when one of the target gas concentrations rises above the Low Alarm level, or in the case of oxygen falls below the Low Alarm level, for that gas. The EAGLE 2 also sounds an alarm and flashes the LED arrays when one of the target gas concentrations rises above the High Alarm level and when the STEL and TWA alarm levels are reached for CO and H2S. NOTE: If an alarm condition occurs while you are in Display Mode, the EAGLE 2 will automatically bring up the alarm screen instead. When a failure condition occurs, such as a sensor failure, low flow, or dead battery condition, the unit will also sound an alarm and flash the LED arrays. The table below summarizes the types of alarms produced by the EAGLE 2 and their indications. Table 6: Alarm Types and Indications Alarm Type Visual Indications Audible Indication Low Alarm ALRM1 appears next to gas Pulsing tone once per reading second Concentration of gas rises above the Low Alarm setting Alarm LED arrays flash once or falls below the Low Alarm per second setting for O2. Backlight turns on High Alarm ALRM2 appears next to gas Pulsing tone twice per reading second Concentration of gas rises above the High Alarm Alarm LED arrays flash twice setting. per second Backlight turns on EAGLE 2 Operator’s Manual Measuring Mode, Alarms 35 Table 6: Alarm Types and Indications Alarm Type Visual Indications Audible Indication TWA or STEL Alarm LED arrays flash once Pulsing tone once per per second second Concentration of CO or H2S Backlight turns on rises above the TWA or STEL alarm setting. TWA or STEL appears next to gas reading Over Range OVER appears next to gas Pulsing tone twice per reading second Gas reading indicates full scale Alarm LED arrays flash twice per second Backlight turns on Low Flow The display indicates FAIL Double pulsing tone LOW FLOW LEVEL once per second Alarm LED arrays flash in a double pulsing pattern once per second Backlight turns on Low Battery Warning BATT appears vertically along None the left side of LCD Dead Battery Alarm Gas readings replaced by Double pulsing tone RECHARGE INSTRUMENT once per second BATTERIES Alarm LED arrays flash in a double pulsing pattern once per second Sensor Failure FAILED SENSOR(S) appears Double pulsing tone at the top of the display and once per second the failed sensor(s) are indicated Alarm LED arrays flash in a double pulsing pattern once per second Resetting and Silencing Alarms You can set the EAGLE 2’s gas alarms as latching or self-resetting alarms (see “Updating the Alarm Latching Setting” on page 115). Self-resetting alarms (ALARM LATCHING set to SELF RESET) Self-resetting alarms automatically shut off and reset when the gas reading falls below (or rises above for an oxygen low alarm) the alarm setting. You cannot reset self-resetting alarms with the POWER ENTER RESET button. You can set self-resetting alarms with or without the alarm silence 36 Measuring Mode, Alarms EAGLE 2 Operator’s Manual feature (see “Updating the Alarm Silence Setting” on page 116). Latching alarms (ALARM LATCHING set to LATCHING) Latching alarms will remain in effect until the gas reading falls below (or rises above for an oxygen low alarm) the alarm setting and they are reset with the POWER ENTER RESET button. You can set latching alarms with or without the alarm silence feature (see “Updating the Alarm Silence Setting” on page 116). ALARM SILENCE On and Alarms Set to LATCHING: ALARM SILENCE set to ON and ALARM LATCHING set to LATCHING are the factory settings. When the EAGLE 2 goes into gas alarm, press and release any button to silence the buzzer. If the gas concentration was still above the alarm level when the button was pressed, the LED arrays continue to flash, and the EAGLE 2 continues to display the current alarm level. The gas reading must fall below (or rise above for an oxygen low alarm) an alarm setting before you can reset the alarm. When the alarm condition passes, press and release the POWER ENTER RESET button to reset the alarm. The LED arrays turn off and the EAGLE 2 alarm indications on the display turn off. ALARM SILENCE Off and Alarms Set to LATCHING: The gas reading must fall below (or rise above for an oxygen low alarm) an alarm setting before you can reset the alarm. When the alarm condition passes, press and release the POWER ENTER RESET button to reset the alarm. The LED arrays and buzzer turn off and the EAGLE 2 alarm indications on the display turn off. ALARM SILENCE On and Alarms Set to SELF RESETTING: When the EAGLE 2 goes into gas alarm, press and release any button to silence the buzzer. The POWER ENTER RESET button will not reset the alarm. When the gas reading falls below (or rises above for an oxygen low alarm) an alarm setpoint, the alarm will automatically reset. The LED arrays turn off and the EAGLE 2 alarm indications on the display turn off. With ALARM SILENCE Off and Alarms Set to SELF RESETTING: When the EAGLE 2 goes into gas alarm, the POWER ENTER RESET button will not silence or reset the alarm. When the gas reading falls below (or rises above for an oxygen low alarm) an alarm setpoint, the alarm will automatically reset. The LED arrays and buzzer turn off and the EAGLE 2 alarm indications on the display turn off. EAGLE 2 Operator’s Manual Measuring Mode, Alarms 37 Responding to Alarms This section describes response to gas, over range, battery, and sensor failure alarms. Responding to Gas Alarms 1. Determine which gas alarm has been activated. 2. Follow your established procedure for an increasing gas condition or a decreasing oxygen condition. 3. If necessary, reset the alarm using the POWER ENTER RESET button once the alarm condition has passed. Responding to Over Range Alarms WARNING: An over range condition may indicate an extreme combustible gas, toxic gas, or oxygen concentration. Confirm a normal condition with a different EAGLE 2 or with another gas detecting device. 1. Determine which channel is in alarm. 2. Follow your established procedure for an extreme gas condition. 3. Reset the alarm using the POWER ENTER RESET button once the alarm condition has cleared. 4. Calibrate the EAGLE 2 as described in “Chapter 4: Calibration Mode” on page 54. 5. If the over range condition continues or if you are not able to successfully calibrate the unit, you may need to replace the sensor that has triggered the over range alarm. 6. If the over range condition continues after you have replaced the sensor, contact RKI Instruments, Inc. for further instructions. Responding to Battery Alarms WARNING: The EAGLE 2 is not operational as a gas monitoring device during a dead battery alarm. Take the Model EAGLE 2 to a non-hazardous area and replace or recharge the batteries as described in “Replacing or Recharging the Batteries” on page 71. The EAGLE 2 is fully functional during a low battery warning. However, only a limited amount of operating time remains, approximately 1 - 2 hours. The amount of time depends on how often the LCD backlight is used and how often the unit is responding to alarm conditions. Recharge the Ni-MH 38 Measuring Mode, Alarms EAGLE 2 Operator’s Manual batteries or replace the alkaline batteries as soon as possible as described in “Replacing or Recharging the Batteries” on page 71. NOTE: Alarms and the LCD back light consume battery power and reduce the amount of operating time remaining. Responding to Sensor Failure Alarms 1. Determine which sensor has triggered the sensor failure alarm. 2. Try calibrating the sensor first, as described in “Chapter 4: Calibration Mode” on page 54 before replacing it. 3. If the sensor failure continues, replace the sensor as described in “Replacing a Sensor” on page 79. 4. If the sensor failure condition continues after you have replaced the sensor, contact RKI Instruments, Inc. for further instructions. Display Mode Two other operating modes are accessible when the EAGLE 2 is in Measuring Mode. They are Display Mode and Calibration Mode. This section describes using the EAGLE 2 in Display Mode. In Display Mode you can: display peak readings display the minimum operating and current battery voltage select how the active channels are displayed on the LCD turn the catalytic LEL sensor on or off (if there is a TC or infrared combustible channel along with a catalytic combustible channel) enable or disable methane elimination mode (if the catalytic combustible gas channel is configured appropriately in the CONFIGURE GASES item in Setup Mode) temporarily configure the catalytic combustible channel for a target gas other than the one used for calibration (if the RELATIVE RESPONSE item in Setup Mode is set to ON) display STEL readings (H2S and CO only) display TWA readings (H2S and CO only) display alarm settings select the user ID (if the USER/STATION ID item in Setup Mode is set to ON) EAGLE 2 Operator’s Manual Display Mode 39 select the station ID (if the USER/STATION ID item in Setup Mode is set to ON) display time in operation display date and time display remaining data logging time and clear data logger memory (if the DATA LOG MEMORY item in Setup Mode is set to ON) Tips for Using Display Mode To enter Display Mode and scroll from one screen to the next or skip an item when a question is asked, press and release the DISPLAY ADJUST NO button. To enter an item when a question is asked, press and release the AIR ▲ YES b

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