FHT 59 Si aerosol monitor in its rack cabinet

Thermo Fisher Scientific

FHT 59 Si Alpha/Beta-Aerosol Monitor

Maintenance-free monitor for artificial alpha and beta activity concentration in aerosols using a semiconductor detector, for ambient air monitoring networks and stack emissions monitoring.

The FHT 59 Si measures aerosol-bound artificial alpha and beta activity concentration using a semiconductor detector. It is designed for ambient air monitoring networks and stack emissions monitoring systems.

Discriminates artificial from natural alpha activity with an ion-implanted silicon (PIPS) detector
Low-maintenance long-term operation based on step filter mechanics
Direct read-out of measured values in Bq/m³
Menu-driven calibration procedure with a complete track record of efficiency data
Low-noise, maintenance-free gas ring vacuum pump with an air flow of approx. 8 m³/h
Measuring electronics of the FHT 8000 under Windows, with RS232 and optional LAN coupling

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Technical data

Detector type	PIPS detector
Radiation type	Alpha, beta
Measuring range	0.05/0.3 Bq/m³ to 0.5 × 10⁶ Bq/m³
Flow rate	8 m³/h
Alarm/fail relays	4 (alpha artificial, beta artificial, alpha natural, error)
Interface	RS232 serial interface; optional LAN coupling
Ambient temperature	15 °C to 45 °C
Power consumption	2400 VA
Dimensions (H × W × D)	160 × 60 × 80 cm
Weight	240 kg

Source: Thermo Fisher Scientific, FHT 59 Si product page (thermofisher.com). Full specifications are available in the documents.

FHT 59 Si Alpha/Beta-Aerosol Monitor

Technical data

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