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The electronics consist mainly of an oscillator combining high stability and low distortion, as well as an RMS
converter, the automatic gain control (AGC), the driver for the ceramic resonator and the feedback signal
conditioning.
The RMS level of the signal provided by the sensor is compared with the factory set reference level; the dif-
ference adjusts the signal width generated by the oscillator and thus the acoustic signal generated by the
piezoelectric transducer through automatic gain control.
The signal provided by the sensor slightly varies with the ambient temperature and the static pressure; the
frequency of the signal provided by the oscillator is also stable in relation to ambient parameters.
I
NSTRUMENT STORAGE
Instrument storage conditions:
Temperature: -25...+55°C.
Humidity: below 90% RH without condensation.
When storing the instrument, avoid:
High humidity.
Direct exposure to sunlight.
Exposure to high-temperature source.
Strong vibration.
Steam, salt and/or corrosive gas.
The instrument case is made of ABS: please use only compatible solvents to clean it.
