Radioisotope Development & Production For Industrial & Medical Applications

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Digital Dose Rate Meter DRM 2000


“Digital Dose rate Meter” is one of the radiation monitoring devices, which is widely used in working environments dealing with radioactive materials or instruments.

The Digital Dose rate Meter is mostly used for dose rate measurement. The sensor of this instrument is a Geiger Muller detector suitable for detection of x and gamma rays with energy greater than 60 keV. This detector has been devised in an external probe so that one can use the instrument for distance measurement of highly active sources up to 1 Sv/h.

The device is full digital and has a microprocessorbased hardware, using a menu driven software which controls different blocks of the hardware as well as different settings of alarm levels and so on. A 16 character LCD display unit is used that displays dose rate, total dose, different menus and settings via keypad selection. The instrument is battery operated using internal 2x3.7 V Li-ion rechargeable batteries, accompanied by an external battery charger.

The resolution of this device is modified, comparing to similar survey meters, by its special hardware and software design.

 

Specification:

Radiation detection range:

Gamma and X-rays, 60 keV – 3 MeV

Detector:

An energy-compensated LND 713 GM tube

Measurement range:

Dose rate: 1 µSv/h – 500 mSv/h(Auto range)
Dose: 0.00001 – 999999 mSv
                                     
Display:

16 digit LCD

Keyboard:

Waterproof and dust free membrane keyboard

Alarm Levels:

Freely adjustable alarm levels for dose rate and total absorbed dose

Accuracy:

±15 % in Cs-137 Cs radiation field, at 10 μSv/h – 100mSv/h

Response to the angle of incidence:

±15% within ±90 º from the calibration direction

Power supply:

2 ×3.7 V Li – lon batteries

Battery charger:

Input 220V AC, output 12 V and 300 mA

Battery alarm:

Two - step alarm for low battery voltage and complete charge

Dimensions:

85×145×27 mm3

Weight:

250 g including batteries

Temperature range:

From-10 to +65 º C

Digital Dose Rate Meter DRM 2000