
© Brüel & Kjær Vibro
● C106834.002 / V06 ●
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Brüel & Kjær Vibro
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Instruction VC-1800 Series
Tips for Safe Operation of
VIBROCONTROL 18xx
EN
UNRESTRICTED DOCUMENT
Connecting to a power supply:
The VIBROCONTROL 18xx has a voltage tolerance of +24 V DC ±5 %.
Before connecting the VIBROCONTROL 18xx to a +24 V DC supply voltage, please make sure
that all terminal blocks are completely inserted. The ex24 V DC supply voltage must be
generated and supplied according to the SELV requirements with power limiting.
Protect the +24 V DC supply voltage externally with max. 2A. The ground (GND) of the DC supply
is directly connected with the ground (GND) of the sensor supply, if any. The SELV criteria must
therefore be met for the DC supply (safety extra-low voltage, circuit electrically isolated from other
circuits, not grounded). If the DC circuit is to be grounded (e.g. due to national regulations), the
protective-extra-low-voltage (PELV) criteria must be adhered to (SELV with circuit electrically
isolated from other circuits).
Maintenance:
If used correctly, no maintenance and repair measures are necessary.
Only the manufacturer is allowed to repair the unit.
ATTENTION!
The power supply unit may only be supplied with power via a disconnecting device (switch or circuit
breaker)!
The disconnecting device must meet the requirements of IEC 6094-7 and
IEC 60947-3 and be suitable for the application.