Ludlum Model 3003

Multi-Detector Ratemeter

Single Channel Analyzer

Model 3003 survey meter model 3003 buttons

The Model 3003 is a durable, lightweight instrument designed for alpha, beta, gamma, or neutron radiation survey. It can support up to four external detectors, each with its own set of calibration and user parameters. The Model 3003i is a version that includes an internal GM or scintillation detector. The instrument features a large, easy-to-read LCD screen and audible alarms and is controlled using a simple seven-button interface. The unit body is made of high-impact plastic and splash resistant construction allows the instrument to be used outdoors.

Four modes of operation are available – RATE, MAX, INTG, 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, MAX, and DOSE modes, unless alpha-beta detection is selected.The user can switch between the two sets of units by pressing the UNITS button. The DETECTOR button is used to switch between the active detector settings, indicated by the colored LEDs above the control buttons. When enabled with the 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. The SCA ability allows a scintillator or proportional detector to be set up with an upper window, giving it higher sensitivity to a specific isotope or region. This instrument can be used with external alpha-beta detectors to display alpha, beta, or alpha+beta counts.

Instrument setup can be done either through the front-panel controls or via the Lumic Calibration Kit (see Options). The Model 3003 is shipped ready to use with batteries and calibration certificate.

Compatible Detectors Up to four external GM, scintillation, proportional, or neutron detectors
Internal Detector (3003i only) GM (Range: 0 to 20 mSv/h [0 to 2 R/hr]) or scintillation detector High Voltage 300 to 2400 Vdc
Linearity Readings within 10% of true value
Modes Four operational modes including rate, max, integrated dose, and count
Display 3-digit auto-ranging LCD with large 20 mm (0.8 in.) digits.
Units (k)(M)c, (k)cps, (k)(M)cpm, (k)(M)d, (k)(M)Bq, (k)(M)Bq/cm2, (k)(M)dpm, (µ)(m)(k)(M)R, (µ)(m)(k)R/h, (µ)(m)(k)(M)Sv, (µ)(m)Sv/h, (µ)(m)(k)(M)Rem, (µ)(m)(k)Rem/h.
Indicators bar graph, radiation type (alpha (α), beta (β), gamma (γ), neutron (n)), model (MAX, INTG), three alarm levels (ALARM 1,2,3), fault messages (FAULT, OVERLOAD, LOSS OF COUNT, OVERRANGE), USB, wireless, audio, low-battery.
Display Range
00.0 cps to 999 kcps
00.0 cpm to 99.9 Mcpm
00.0 Bq to 999 MBq
00.0 Bq/cm2 to 999 MBq/cm2
00.0 dpm to 999 Mdpm
0.00 µR to 999 MR
0.00 µR/h to 9.99 kR/h
0.00 µSv to 999 MSv
0.00 µSv/h to 999 Sv/h
0.00 µRem to 999 MRem
0.00 µRem/h to 9.99 kRem/h
0 c to 999 Mc (counts)
0 d to 999 Md (disintegrations)
Minimum and maximum 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
Controls
ON/AUD: Extra-long press to turn ON; Short tap to adjust audio level; Extra-long press to turn OFF
UNITS: Changes the units between count rate, dose/exposure, or disintegration
DETECTOR: Short tap to change active detector to the next enabled detector. On 3003i, extra-long press to switch between internal and external detector.
MODE: Short tab alternates between RATE (count rate), MAX (captures peak rate), COUNT (user-selectable preset count time from 0 to 31.68 years), and DOSE (current accumulated dose)
Response Time User-selectable from 1 to 60 seconds, auto SLOW, auto FAST, fixed SLOW (22 s), fixed FAST (4 s)
Alarms Three count rate, exposure/dose, scaler, and accumulated dose alarm set-points adjustable over the display range
Self-Diagnostics Detects and reports internal instrument issues, indicated by graphic FAULT display and audio warning
Overload Protection High count rate saturation protection prevents false display of lower count rates. OVERLOAD will appear on the display and an audio warning will be triggered.
Loss of Count Protection After a user-defined time, typically 60 seconds, with no pulses from detector, the unit will flash a zero reading, an audio alarm will be triggered, and LOSS OF COUNTS will appear on the display
Overrange If reading should exceed the predefined detector range, the unit will flash a maximum reading, an audio warning will be triggered, and OVERRANGE will appear on the display
Audio "Click" audio greater than 65 dB at 0.6 m (2 ft.), Alarm audio greater than 72 dB at 0.6 m (2 ft.), approximately 4.5 kHz
Calibration Protection Internal dipswitch to disable front-panel calibration parameter changes
Power Four "AA" batteries
Battery Life Approximately 175 hours, 16-hour low battery warning
Construction High-impact polycarbonate with 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)
Environmental Rating NEMA rating of 3x or IP rating of 53
Size (H x W x L) 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)

Model 3003 Can be configured with up to four external GM, scintillation, proportional, or neutron detectors. 
Model 3003i Includes internal GM or scintillation detector. Can be configured with up to four external GM, scintillation, proportional, and/or neutron detectors.

Ludlum Model 3003 manual

Manual