GDMR is a measuring device for determining the dose rate, from background levels to large fields that can be generated by accidental releases in nuclear plant or facilities and is specifically designed for indoor area and process monitoring as well as for outdoor environmental monitoring.
The technical solutions characterizing the GDRM permit very low power consumption, compact dimensions and lightweight. Easy operation and very limited need of operator’s interventions are among the advanced characteristics as well as measurement’s precision and reliability thanks to proprietary algorithms and automatic control of significant parameters, including self-adjusting of response time in relation to dose rate changes.
GDRM is energy-compensated in accordance with IEC 60846-1, which makes it suitable for measuring ambient dose equivalent rate H * (10).
| Parameter | Value |
|---|---|
| Radiation Type | X and Gamma - from 24.6 keV to 10MeV |
| Measured quantities | Ambient dose equivalent rate H*(10), Ambient dose equivalent H*(10). Not for pulsed radiation fields |
| Measuring range, dose rate | 0.05 mkSv/h ÷ 5 Sv/h (up to 100 Sv/h) |
| Measurement principle | Dead time independent |
| Integration time | 10 s … 6.55 · 105 s (configurable) |
| Overexposure | 50 Sv/h over 5 min without decrease in counting rate |
| Response time | ≤ 8 s (1 μSv/h … 10 mSv/h, peak finder activated) ≤ 2 s (10 mSv/h … 5 Sv/h, peak finder activated) |
| Data interfaces | RS 485, RS 232, option USB |
| Operating temperature | −30 °C to +60 °C |
| Power supply | 10 ÷ 30 VDC, 1.5W |
| Protection | IP67 (including connector and filling valve) |
| Enclosure | Ø 100 x 400 mm |
| Weight | 1.5 kg |
