The FH 62-1 utilizes the radiometric principle of the beta-attenuation by an accumulated dust layer. In contrary to the FH 62 I-R, the FH 62-1 has a single beta beam. It is also designed to measure the mass concentration continuously. The FH 62-1 is a competitve low budget alternative. But nevertheless it is able to capture most of the applications of the FH 62 I-R.
Product Detail
Applications:
Air quality networks: Surveillance of ambient particulate concentrations
Mobile: Quick response, ery low detection limit, no influences due to external vibration, no warm up time
Work place / Industrial sites
Size selective inlets: TSP, PM10, PM2.5
Study of human health effects
Features:
Scanning time 1 second, average concentrations: 30 min, 1h, 3h, 24h
Detection of low concentration levels
Electronic compensation method eliminates drifts due to temperature and pressure changes
Easy mass calibration and air flow rate calibration of all units in a network with the same single standard results in the same sensitivity and accuracy.
Self monitoring with status reports and logbook
Customer specific adaptations possible (contact factory for more details)
No heating required, so no loss of volatile mass components
Low maintenance cost, approx 1 year stand alone and maintenance free operation.
Direct mass collection and simultaneous measurement during sampling by a one-beam methos with an additional electronic sensor compensation and single filter-spot position (no step wise response with reselected time and range intervals).
Type of basic output function :
Integral function mass over time (continuously observed)
Measuring Range :
0 to 5000 µg/m³ and 0 to 10000 µg/m³
Resolution :
2 µg/m³
Accuracy :
2 µg/m³ (24h)
Output signals :
Two analog channels; 0...4...20mA or 0...2...10V for concentration and mass over time (without potential free separation)
Optional output signal :
Potential free separation for two current loops
Printer/computer interface :
Two V24/RS 232 C serial interfaces
Total mass averaging with scanning time :
= 1 sec.
Long term averaging :
30 min; 1h, 3h, 24h
Air flow rate :
Directly 1 m³/h through filterspot measured with internal pressure drop orifice (no loss of particles due to flow splitter)
1 Items Total 7,000.00 USD 
