РМ1405 Survey Meter measures beta radiation flux density from contaminated surfaces and ambient dose equivalent rate of gamma and X-ray radiation.
Survey Meter is designed for the wide range of radiation safety applications and may be successfully used by radiation control services personnel, first responders, employees of security service and customs, as well as personnel whose work includes solving problems of local gamma and beta radiation sources detection or single objects contaminated by gamma and/or beta radiation sources.
The РМ1405 survey meter incorporates a large energy compensated GM tube for precise measurement of the ambient equivalent dose rate of the X-ray and gamma radiation in the range from background level to 100 mSv/h (10 R/h). By opening the special screen-filter and choosing beta radiation flux density measurement mode, the instrument allows to estimating the intensity of the contamination of surfaces of various environmental objects from beta radiation sources.
Being compact in size and light weighted the survey meters may be used for search, detection and localization of gamma and beta radiation sources. The search process is accompanied by sound and light signals with the intensity of the signal proportional to the radiation rate.
A modification with option of measurement of the ambient dose equivalent (DE) of gamma and X-ray radiation and measurement of the α-particles flux density (surface contamination level measuring) is available by individual order.
- DE and DER threshold values;
- History saving/recording interval;
- Measurement units;
- Enable/disable different alarm types.
PM1405 applications include, but are not limited to use in the following areas:
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|DER Measurement Range||γ-channel - 0.1 μSv/h − 100 mSv/h|
β measuring - from 6.0 to 103 min-1•cm-2
*α measurement is special configuration, supplied by individual order
|Dose Rate Accuracy ||± (20 + K/H) %|
where H – dose rate, μSv/h
K - coefficient 1.0 μSv/h
|DE Measurement Range||1.00 μSv − 10.0 Sv|
|Dose Accuracy||± 20 %|
|Energy range||γ-channel- from 0.05 to 3.0 MeV|
β measuring - from 0.1 to 3.5 MeV
|Energy response relative to 0.662 MeV |
|± 30 %|
|Survive after momentary influence of maximum|
permissible gamma radiation within 5 min:
|Ingress protection rating||IP30|
|Drop test||0.7 m (2.3 ft) on concrete floor|
|Water resistant |
|Alarm type||visual, audible|
|Display of time to critical exposure|
|PC Communication||USB interface|
|Batteries||two AA batteries|
|Battery discharge control|
|Battery lifetime (average DER not more than 0.3 µSv/h,|
alarms activated for not more than 20 s/24 hours)
*using LCD backlight, audible and visual alarm not more than 5 m/day
|148 х 80 х 38 mm|
|290 g (10.2 oz) without package|
|Temperature ||-10°C to 50°C (14°F to 122°F)|
|Humidity ||up to 95 % at 35 °С (95 °F)|