VIBROCONTROL 920
1 General
VIBROCONTROL 920 is an instrument for measurement, monitor-ing and
display of bearing resp. housing vibrations. The amplitude of the current
measurement is displayed as the effective (rms) value of vibration velocity
directly at the instrument on a three-digit, seven-segment LED display.
The standard sensor connected to the VIBROCONTROL 920 is normally a
vibration velocity sensor. When an acceleration sensor is used the signal is
integrated to the corresponding value of vibration velocity.
Two adjustable limit values, within the same full scale range, are available for
signalling alarms. To prevent the alarm relays being activated by short-term
high vibration levels which exceed the alarm values, a time delay can be
activated for each individual alarm relay. Limit value exceedances are
displayed on the VIBROCONTROL 920 by alarm LEDs while the excee-
dances can be signalled further using the respective potential-free alarm
relay contacts.
Setting up of the instrument for the measurement and monitoring task is
done by means of setup parameters.
A diagnosis output (terminals B / ↓) is available for checking purposes and
enables analysis of the input signal with correct phase.
All cable connections to the instrument are made by means of screw
terminals.
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