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CMA
3
Conditions on site
ATTENTION
The insulation resistance is crucial for piezoelectric transducers; it
should be no greater than 10
plug connections have to be kept thoroughly clean. A positive or
negative signal drift of the nominal (rated) output signal indicates
insufficient insulation resistance. The plug connection contacts
should then be cleaned with a clean, lint free cloth and a cleaning
agent (petroleum ether, isopropanol).
ATTENTION
Protect the transducer plug and the charge amplifier
transducer connector against pollution and under no
circumstances touch it (plug face) with your hand. The
supplied cover should always be in place when the
connection is not in use.
Use only the connection cable included in the scope of supply.
Once mounted, it should remain connected to the transducer, if possible.
3.1 Ambient temperature
The temperature has little effect on the output signal. To obtain optimum
measurement results, the nominal (rated) temperature range must be
observed. Temperature related measurement errors are caused by heating on
one side (e.g. radiant heat) or by cooling.
3.2 Moisture and humidity
Moisture and humidity or a tropical climate are to be avoided. When the
connection cable is properly connected to a transducer/charge amplifier, the
CMA charge amplifier has degree of protection IP65 per EN 60529.
A2559−1.0 en/de/fr
13
ohms. To obtain this value , all the
9
HBM
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