Survey meter is designed for search, detection and localization of gamma and beta radiation sources. Survey Meter measures beta radiation flux density from contaminated surfaces and ambient dose equivalent rate of gamma and X-ray radiation. Instrument alerts the user with audible alarms when preset radiation thresholds are exceeded and registers with audio signal every detected count in a search mode.
Instrument is recommended for first responders, customs and border officers, radiological and radionuclide isotope laboratories, bank personnel.
Survey meter РМ1405 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 estimate the intensity of the contamination of surfaces of various environmental objects from beta radiation sources.
Instrument have small size and lightweight, large LCD display with backlight, audible alarm, non-volatile memory.
User software for PM1405 allows:
|Dose equivalent rate (DER) measurement range||0.1 μSv/h − 100 mSv/h|
|DER indication range||0.01 μSv/h − 130 mSv/h|
|DER measurement accuracy||± (20 + K/H) %, where Ḣ – dose rate, μSv/h K - coefficient 1.0 μSv/h|
|Dose equivalent (DE) measurement range||1.00 μSv − 10.0 Sv|
|DER indication range||0.01 μSv − 10.0 Sv|
|DE measurement accuracy||± 20 %|
|Alarm Type||audible, visual|
|Thresholds||available for all types of radiation|
|Energy response relative to 0.662 MeV:
|β- radiation flux density measurement range||from 6.0 to 103 min-1•cm-2 (cpm/cm2)|
|β- radiation flux density accuracy:
|β-particle flux indication range||from 0.1 to 104 min-1•cm-2 (cpm/cm2)|
|Energy range by β-particle flux density measurement||from 0.1 to 3.5 MeV|
|Energy response by β-particle flux density measurement||± 30%|
|Sensitivity for β-radiation:
|Count rate indication for β-γ radiation in the search mode||from 0.00 to 3.5·105 s-1 (cps)|
|α-radiation flux density measurement range||from 90 to 104 min-1•cm-2(cpm/cm2)|
|α- radiation flux density accuracy:
|α- particle flux density indication range||from 0.1 to 104min-1•cm-2 (cpm/cm2)|
|PC communication||USB interface|
|Operation mode setup time, no more||60 s|
|Power supply||two AA batteries 3 ( + 0.2; -0.8) V; external power supply|
|Drop test on concrete floor||0.7 m|
|Dimensions||148 х 80 х 38 mm|
|Operating temperature||-10°C to 50°C (14°F to 122°F)|
|Humidity||up to 95 % at 35°С|
|Atmospheric pressure||from 84 up to 106.7 kPa|
|Mean service lifetime||10 years|