Model 3004 Series

Neutron Dose Survey Meter with Optional Internal Gamma Detector

Features

• Moderated Neutron Detector
• Range: 0 - 100 mSv/h (0 - 10,000 mrem/hr)
• Gamma Rejection up to 0.1 Sv/h (10 R/hr)
• Large Backlit LCD for Ease of Reading
• Auto-Ranging
• Rate, Max, Count & Dose Modes of Operation
• Splash-Resistant Construction for Outdoor Use
• All-Digital Calibration
• Lightweight and Ruggedly Built
• 4-Button Intuitive Interface for Easy Operation

The Model 3004 Neutron Dose Survey Meter combines a handheld digital meter with a 22.9 cm (9.0 in.) diameter REM ball containing a ³He detector to measure and monitor neutron radiation. “i” versions include an internal gamma detector in the meter for exposure or dose measurements (see Configurations for available versions). Each instrument features a large, easy-to-read LCD screen and audible alarms, and is controlled using a simple five-button interface. The meter 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, COUNT, and DOSE – 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, mrem/hr, or μSv/h units. The user can switch between two sets of units by pressing the UNITS button. 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 or via the Lumic Calibration Kit (see Options). An internal switch can be used to disable the front-panel setup feature to protect desired settings from inadvertent modification. User-adjustable settings include the calibration constant, dead time correction, efficiency, high voltage, pulse threshold, response time, count time, operational modes (Rate, Max, Count, or Dose), HV current overload level, and minimum and maximum display levels. The user may also set Primary and Secondary units, unit alarm levels, count units, count alarm levels, and zero pulse protection time limit.

The Model 3004 is shipped ready to use with batteries and a calibration certificate.

• Specifications
• Configurations
• Options
• Documents

• Specifications
• Configurations
• Options
• Documents

Specifications

Measurement Range	0-100 mSv/h (0-10,000 mrem/hr)
Detector	3He proportional detector, 1.6 x 2.5 cm (0.6 x 1.0 in.) [D x L], surrounded by 22.9 cm (9.0 in.) diameter cadmium-loaded polyethylene sphere
Sensitivity	Typically 10 cpm per μSv/h (100 cpm per mrem/hr) [bare AmBe neutrons]
Energy Response	Provides an appropriate inverse RPG curve for neutrons from thermal through 7 MeV, provides response up to 12 MeV
Gamma Rejection	Less than 10 cpm through 0.1 Sv/h (10 R/hr) [137Cs gamma]
Threshold	-2 mV
High Voltage	Adjustable from 300 to 2400 Vdc
Operating Voltage	Approximately 1200 Vdc
Linearity	Reading within 10% of true value
Internal Detector ("i" versions)	Energy compensated GM or scintillation detector (see Configurations)
Modes	Four operational modes including rate, max, integrated dose, and count
Display	3-digit 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	Minimum and maximum display can be set to limit display to calibrated 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)
Backlight	Built-in ambient light sensor automatically activates low-power LED backlight, unless internal dipswitch is set to continuous-on (will reduce battery life)
User Controls	ON/OFF (non-”i” version): press to turn ON, short press to acknowledge alarms and silence alarm tone, long press to reset RATE/MAX, hold for OFF ON/AUD (“i” versions): extra-long press to turn ON, short press to adjust audio “click” level, extra-long press plus 3 seconds to turn OFF UNITS: short press changes the units between count rate, dose/exposure, or activity AUDIO (non-”i” version): short press to adjust “click” audio level DETECTOR (“i” versions): short press to change between external and internal detectors MODE: short press alternates between modes: RATE (displays count rate), MAX (captures peak rate), COUNT (user-selectable preset count time from 0 to 31.68 years), and DOSE (current accumulated dose). LOG: short press to log current display (requires Lumic Data Logger Kit, see Options) or initiate count in COUNT mode, extra-long press to change count in COUNT mode
Response Time	User-selectable from 1 to 60 seconds, auto SLOW, auto FAST, fixed SLOW (22 s), fixed FAST (4 s)
Alarms	Three adjustable alarm setpoints for each unit in all four modes of operation
Self-Diagnostics	Detects and reports internal instrument issues, indicated by showing FAULT on the display and an audio warning
Overload Protection	High count rate saturation protection prevents false display of lower count rates. If the instrument detects an overload condition, it will display the OVERLOAD icon and trigger an audio warning.
Loss of Count Protection	After typically 60 seconds of no pulses from the detector, the alarm audio will be triggered and the LOSS OF COUNTS icon and the affected unit will be displayed
Overrange	If the reading exceeds the predefined detector range, the instrument will flash a maximum reading, display the OVERRANGE icon, and trigger an audio warning
Audio	Approximately 4.5 kHz, click audio greater than 65 dB at 0.6 m (2 ft), alarm audio greater than 72 dB
Calibration Protection	Internal dipswitch to disable front-panel calibration parameter changes
Power	Four alkaline "AA" batteries
Battery Life	Non-”i” versions: approximately 750 hours of operation “i” versions: approximately 175 hours of operation 16-hour low battery warning
Working Environment	Splash-proof shields for outdoor use
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)
Environmental Rating	NEMA 3x / IP 53
Size (H x W x L)	41.1 x 23.1 x 25.1 cm (16.3 x 9.1 x 9.9 in.)
Weight	8.3 kg (18.3 lb), with batteries

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Configurations

Model	Internal Detector	Range	Part Number
3004	N/A	N/A	48-4293
3004i	Energy compensated GM	Background to 50 mSv/h (5 R/hr)	48-4442
3004i/1	CsI scintillator, 18 x 18 mm (not energy compensated)	Background to 500 µSv/h (50 mR/hr) Sensitivity: 100 cpm/µR/hr	48-4442-1
3004i/4	Energy compensated GM	Background to 500 mSv/h (50 R/hr)	48-4442-4
3004i/6	Energy compensated GM	Background to 10 Sv/h (1 kR/hr)	48-4442-6

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Options

Option	Description	Part Number
Lumic Calibration Kit	Lumic Calibration Software allows the reading and writing of important parameters via a USB port in the Model 3000 Series and Model 30 family of instruments. This software also includes a calibration wizard (guides the user through calibration steps) and a plateau wizard (determines the optimal detector operating voltage). The kit includes Lumic Calibration Software versions 1.0 and 2.0, a Model 3000 Series USB cable, and a Model 30 family USB cable.	4519-865
Lumic Configuration Kit	Lumic Configuration Software allows the reading and writing of important parameters via a USB port in the Model 3000 Series and Model 30 family of instruments. Does not include calibration or plateau wizards. The kit includes the Lumic Configuration Software, a Model 3000 Series USB cable, and a Model 30 family USB cable.	4519-747
Lumic Data Logger Kit (Model 3000-Series)	Includes Lumic Data Logger Software and cable.	4498-1019
Model 3000 Series Bluetooth® Option & Lumic Linker	Wirelessly connects the instrument with an Android or iOS mobile device.	4519-564
Headphone Jack	Adds a headphone jack to the instrument.	4498-555
Stereo/Mono Headphones	Adjustable stereo/mono headphones.	22-9313
Case for Neutron Meters	Rugged transport and storage case.	2310377
Case for Neutron Meters	Rugged transport and storage case. Has wheels and extendable handle.	2311487

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Documents

• Data Sheet
• Model 3004 Manual
• Model 3004i Manual

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