Model 3001 Multi-Detector Survey Meter

Model 3001 digital survey meter, multi detector Model 3001 control panel

The Model 3001 is a durable, lightweight instrument designed for alpha, beta, or gamma radiation survey. It can support up to four external detectors, each with its own set of calibration and user parameters. The instrument features a large, easy-to-read LCD screen and audible alarms and is controlled using a simple five-button interface. The unit body is made of high-impact plastic and splash resistant construction allows the instrument to be used outdoors.

Three modes of operation are available – RATE, MAX, and COUNT – which can be selected by pressing the MODE button. Measurements can be collected in two sets of units (primary and secondary) for RATE and MAX modes in cps, cpm, Bq, dpm, mR/hr, or μSv/h units. The user can switch between two sets of chosen units by pressing the UNITS button. The DETECTOR is used to switch between the active detector settings, indicated by the colored LEDs above the control buttons. When enabled with the optional Lumic Data Logger Kit (see Options), data can be logged in any of the operational modes using the LOG button on the handle. Up to 1000 data points can be stored internally.

Instrument setup can be done either through the front-panel controls of via the Lumic Calibration Kit (see Options). The Model 3001 is shipped ready to use with batteries and calibration certificate.

Compatible Detectors GM, scintillation, or proportional
Display 3-digit auto-ranging LCD with large 20 mm (0.8 in.) digits.
Units (k)cps, (k)cpm, (k)Bq, (k)dpm, (μ)(m)R(/h), (μ)(m)Sv(/h).
Indicators bar graph, MAX, ALARM, USB, audio, low battery.
Display Range
0.0 cps to 99.9 kcps
0.00 cpm to 999 kcpm
0.00 Bq to 99.9 kBq
0.00 dpm to 999 kdpm
0.00 μR/h to 999 R/h
0.00 μSv/h to 999 Sv/h
Max Display can be set to limit display to calibrated range
Backlight Built-in ambient light sensor automatically activates LED backlight, unless internal dipswitch is set to continuous-On (will reduce battery life)
Controls
ON/ACK: Press to turn ON; Tap to acknowledge alarms and silence alarm tone; Press to reset sigma audio alarm; Hold for OFF
UNITS: Changes the units between count rate (cpm, cps), dose/exposure (µSv/h, mR/h), or disintegration (dpm, Bq)
DETECTOR: Selects active detector
MODE: Alternates between RATE (count rate), MAX (captures peak rate), and COUNT (user-selectable preset count time from 0 to 10 minutes). Number of modes can be reduced in setup.
LOG: Press to store meter reading (requires Lumic Data Logger Kit, see Options)
Data Logging Can store up to 1000 data points internally. Requires Lumic Data Logger Kit, see Options.
Response Time User-selectable from 1 to 60 s, or Auto-Response Rate FAST or SLOW
Alarms Count rate, exposure/dose, and scaler alarm setpoints adjustable over the display range
Overload Protection High count rate saturation protection prevents false display of lower count rates
Loss of Count Protection After a user-settable time interval (default 60 seconds) of no pulses from detector, unit will flash a zero reading and the alarm audio will be triggered
Dead Time Correction Employs first and second order corrections for extended performance
High Voltage 400 to 1500 Vdc
Threshold -2 to -100 mVdc
Audio Greater than 75 dB at 0.6 m (2 ft), approximately 4.5 kHz
Power Four alkaline or four rechargeable “AA” batteries (instrument does not support in-device charging)
Battery Life Approximately 500 hours (as low as 100 hours with backlight configured for continuous-on), 16-hour low battery warning
Construction High-impact plastic with water-resistant rubber seals and separate battery compartment
Temperature Range -20 to 50 °C (-5 to 122 °F)
May be certified for operation from -40 to 65 °C (-40 to 150 °F)
Enviornmental Rating NEMA rating of 5 or IP rating of 53
Size (H x L x W) 16.5 x 11.4 x 21.6 cm (6.5 x 4.5 x 8.5 in.)
Weight 0.9 kg (2.0 lb)

Ludlum Model 3001 manual

Manual