Chapter 2 ___________________________________________________________ Product Overview
VAISALA ________________________________________________________________________ 19
The FS11P system is constructed of four main parts (see numbers 1–4 in
Figure 1 on page 18):
1. Measurement unit FSM102 includes the measurement CPU, optical
parts, transmitter, receiver, and protective hoods equipped with
heaters.
2. Precipitation Identifier PWD32 includes the measurement CPU,
optical parts, transmitter, receiver, and protective hoods equipped
with heaters.
3. The interface unit FSI102 includes the communication CPU, power
supply, optional modem board, and optional backup battery
including battery charger.
4. The frangible pole mast includes the mechanical fixing onto the
foundation or some other flat surface, and the support for the
measurement unit and the interface unit's enclosure.
The FSM102 transmitter and receiver optics are permanently aligned
downwards and outwards to protect them from blowing dust, snow, and
rain. The scatter measurement angle is 42°. The enclosure of the interface
unit is normally mounted on the pole mast, which supports the
measurement unit.
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