| The FHT 1659 L is applied for the continuous monitoring of
aerosol bound artificial beta activity in air. The activity of aerosols accumulated on a
fixed filter as well as the derived activity concentration are measured and controlled.
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 mobile application for workplace monitoring in controlled areas
- CAM algorithm for the continuous evaluation of the artificial beta activity
concentration in physical units of Bq/m³
- dynamic compensation of varying levels of natural radioavtivity in air (Rn-progeny)
- freely selectable alarm limits
- 58 mm glas fibre filter
- easy systems integration via RS232 serial interface
Features
- measuring range for artificial beta activity concentration
100 - 105 Bq/m³ related to 60 min. sampling time
- fixed filter detector assembly comprising a sealed proportional counter tube with lead
shielding
- aerosol filter Ø 58 mm, grade S, in leakag free filter holder
- air flow app. 5m³/h
- measuring electronics FHT 1100 with NetView compatible transmission protocol
- opto-acoustic alarm unit
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