Questions and Answers
What is recommended by Ludlum Measurements, Inc.?
How many standard AA batteries are required for the Model 3001?
When should you replace the batteries in the Model 3001?
What is the maximum display value for the Model 44-2 in the "mR/h" unit?
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What is the minimum display value for the Model 133-6 in the "mR/h" unit?
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How do you know when it's time to replace the batteries in the Model 3001?
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What does the low-battery indicator on the Model 3001 indicate?
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What type of batteries are used in the Model 3001?
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Where is the Model 3001 serial number located?
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What is the setting for 'Dead Time Correction 2 - Exponent' for the Model 44-2?
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What is a potential consequence of incorrect settings during the setup mode?
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How often is recalibration recommended by Ludlum Measurements, Inc.?
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Which statement about battery replacement is accurate?
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Which environmental condition is critical for the operation of the instrument?
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What happens to the Hundreds Place value when the k multiplier is used?
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What is the default value of the Pulser Threshold?
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What is adjusted using the MODE button?
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What is the purpose of the k multiplier?
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What is the maximum value that can be set for the Detector Current Overload Threshold?
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How do you disable the Current Overload Alarm?
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How do you adjust the Detector Current Overload Threshold value?
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What is the default setting for the Loss of Count Alarm Time?
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How do you disable the Loss of Count Alarm?
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What is the default setting for the Primary RATE/MAX Units and Minimum Display?
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How do you adjust the Primary RATE/MAX Units and Minimum Display value?
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What is the range of values available for the Loss of Count Alarm Time?
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When is Sigma Audio disabled?
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What is the range of acceptable background count rates for proper Sigma Audio function?
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What is the default setting for Sigma Audio?
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What happens when Dual Level Audio is enabled?
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What is the default setting for Dual Level Audio?
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What type of audio is used when Count audio and Sigma Audio are both enabled?
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When Dual Level Audio is disabled, what audio settings are available?
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What are the available audio settings for Dual Level Audio when it is enabled?
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Study Notes
Setup Mode
- Designed for advanced users or administrators to change parameters.
- Incorrect settings may compromise user safety.
- Instrument undergoes electronic checkout, a 24-hour burn-in, and careful calibration before shipment.
Calibration and Recalibration
- Calibration papers included with each instrument.
- Recommended to recalibrate after maintenance or adjustments, not typically necessary after cleaning or battery changes.
- Recalibration does not require special tools.
- Full-service repair and calibration available for both Ludlum and other manufacturers' instruments.
- Recalibration suggested at annual intervals; comply with local regulations regarding calibration frequency.
Setup Parameters Overview
- Calibration constants are specific for various models, including Model 133-6, Model 44-2, Model 42-31H, and Model 44-132.
- Dead Time Correction settings, dead time can affect measurement accuracy.
- Efficiency settings specify alpha (20) and beta (15) values.
- High Voltage Setpoints vary by model, ranging from 550 to 1200 volts.
- Discriminator Threshold: Set predetermined threshold levels for detection across models.
Alarm Settings
- Loss of Count Alarm varies by type (Alpha: 600; Beta: 60).
- Detector Enable functionality can be enabled or disabled.
- Alarm values can be customized for each unit in terms of counts and minimum display.
Unit Display and Measurement Settings
- Units of measurement for various metrics (e.g., mR/h, µR/h, cpm).
- Maximum display values defined with specific upper limits for each unit.
- Ability to disable certain alarm modes when not in use.
Getting Started Instructions
- Includes unpacking procedures and verifying inventory against the packing list.
- Ensure calibration certificates match individual items.
- Serial numbers located on the unit's front side for identification.
- Return procedures require proper packing and an Instrument Return Form available on the Ludlum website.
Battery Installation
- Low-battery indicator alerts users when less than 16 hours of battery life remains.
- Replacement procedure involves turning the instrument upside down and accessing the battery compartment.
Setup Mode
- Designed for advanced users or administrators to change parameters.
- Incorrect settings may compromise user safety.
- Instrument undergoes electronic checkout, a 24-hour burn-in, and careful calibration before shipment.
Calibration and Recalibration
- Calibration papers included with each instrument.
- Recommended to recalibrate after maintenance or adjustments, not typically necessary after cleaning or battery changes.
- Recalibration does not require special tools.
- Full-service repair and calibration available for both Ludlum and other manufacturers' instruments.
- Recalibration suggested at annual intervals; comply with local regulations regarding calibration frequency.
Setup Parameters Overview
- Calibration constants are specific for various models, including Model 133-6, Model 44-2, Model 42-31H, and Model 44-132.
- Dead Time Correction settings, dead time can affect measurement accuracy.
- Efficiency settings specify alpha (20) and beta (15) values.
- High Voltage Setpoints vary by model, ranging from 550 to 1200 volts.
- Discriminator Threshold: Set predetermined threshold levels for detection across models.
Alarm Settings
- Loss of Count Alarm varies by type (Alpha: 600; Beta: 60).
- Detector Enable functionality can be enabled or disabled.
- Alarm values can be customized for each unit in terms of counts and minimum display.
Unit Display and Measurement Settings
- Units of measurement for various metrics (e.g., mR/h, µR/h, cpm).
- Maximum display values defined with specific upper limits for each unit.
- Ability to disable certain alarm modes when not in use.
Getting Started Instructions
- Includes unpacking procedures and verifying inventory against the packing list.
- Ensure calibration certificates match individual items.
- Serial numbers located on the unit's front side for identification.
- Return procedures require proper packing and an Instrument Return Form available on the Ludlum website.
Battery Installation
- Low-battery indicator alerts users when less than 16 hours of battery life remains.
- Replacement procedure involves turning the instrument upside down and accessing the battery compartment.
Detector Current Overload Threshold
- Default setting is 100; tap ON/ACK to select and MODE to adjust the value.
- Setting to 0 disables the Current Overload Alarm.
- Value can be adjusted in ones, tens, and hundreds places (0-9).
Loss of Count Alarm Time
- Default time is 60 seconds; adjustable through ON/ACK and MODE.
- Setting to 0 disables the alarm.
- Options for adjustment available in seconds (ones, tens, hundreds places).
Primary RATE/MAX Units and Minimum Display
- Default display is 0 µR/hr; use ON/ACK and MODE to adjust.
- Adjustment should be higher than the Turn On value.
Sigma Audio
- Default is OFF; use MODE to enable or disable.
- ON status activates Sigma Audio, OFF activates normal click audio.
- Requires an 8-second background count; device beeps until acceptable range (500 cpm - 200 kcpm) is obtained.
- Disabled in Count Mode; if both Count and Sigma Audio are on, Count audio will be click.
Dual Level Audio
- Default setting is OFF; adjusted via MODE.
- ON enables Hi, LO, and Mute audio settings; OFF limits to Hi and Mute.
Datalogging Mode
- Default is 1; indicates current datalogging mode.
- Users can measure in dpm/100 cm² by manipulating efficiency based on detector area.
- Example: for 15 cm² detector with 10% efficiency: change to 1.5% for dpm/100 cm².
High Voltage Adjustment
- Default voltage is 900 Volts; adjustable using ON/ACK and MODE.
- Options available in ones, tens, hundreds places, with k Multiplier (on/off).
- When k Multiplier is on, the left-most decimal point is activated; hundreds place limited to 0 and 1.
Pulser Threshold
- Default setting is 35 millivolts; adjust via ON/ACK and MODE.
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Description
Advanced users and administrators guide to setting up the Model 3001 Multi-Detector Survey Meter, importance of correct settings for user safety.
