АТ2331 Emergency Alarm Dosimeter is designed for detection of self-sustaining chain reaction and generation of sound and light alarm signals to evacuate personnel from hazardous area.
Аlarm dosimeter is a fixed design package consisting of gamma radiation detection units, processing and alarm units for on-site installation.
Alarm dosimeter operation principle is based on gamma dose rate measurement by BDKG unit, results matching with pre-set threshold levels "2 from 3"/"OR" logic processing of BDKG unit signals about exceeded alarm threshold levels to generate alarm signal to indicate self-sustaining chain reaction condition.
Instrument can accept data about two dose rate measurement threshold levels and store it for further use when alarm dosimeter is powered on.
АТ2331 Alarm dosimeter can be connected to АТ2327 Alarm dosimeter or personal computer using "SARK2" software to create an emergency alarm system.
Up to 3 alarm dosimeters can be connected to АТ2327 and up to 32 alarm dosimeters – to PC.
When AT2331 Alarm dosimeter is a part of emergency alarm system, operating one alarm dosimeter triggers all alarm dosimeters of the system.
The sound mute switch can be used to deactivate audible alarm after personnel evacuation.
If malfunction of one unit from emergency alarm dosimeter or communication line occurs, the rest of the units will continue operating in stand-alone mode preserving all detection, alarm, measurement and data storage functions.