GammaTest C Dose Rate Alarm Unit
Specifications
Dose Rate Alarm Unit GRAETZ GammaTest C with adjustable alarm thresholds
The GammaTest C is a light, robust battery operated pocket-sized dose rate alarm unit for the personal radiation protection for the detection of gamma and X-rays. Four different alarm thresholds can be adjusted. When being exceeded, an optical (red LED) and acoustic alarm will be triggered.
The dose rate alarm threshold 25 µSv/h is required by the German Fire Brigades Regulation (FwDV 500) for the determination of a danger zone. The alarm threshold 40 µSv/h is required in the range of non destructive testing (NDT) during radiographic processing (for example by X-rays): the local dose rate outside the control area may not exceed 40 µSv/h.
The splash-proof, anodically treated aluminium housing of the GammaTest C ensures a shielding against EMC influence.
| Technical Data | |
|---|---|
| Detector: | energy compensated GM-tube |
| Energy range: | 40 keV – 1.3 MeV |
| Measurand: | Ambient dose equivalent rate H*(10) |
| Alarm thresholds: | 25 µSv/h, 40 µSv/h, 1 mSv/h, 10 mSv/h |
| Overload capacity: | > 500 mSv/h |
| Temperature range: | -30°C ~ +60°C (operation) -40°C ~ +70°C (storage) |
| Acoustic alarm: | > 80 dB(A) measured in 30 cm distance |
| Dimensions: | (106 x 67 x 23) mm, without Clip |
| Weight: | 190 g |
| Operating life: | aprox. 250 hours |
| Power Supply: | 2x AAA (LR03) |
