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Electrical Connection
3
Electrical Connection
The electrical connection of the VVX is made via an M12x1 plug mounted on the cover of the
electronics housing.
CAUTION
The electrical connection may only be carried out by an electrician.
De-energize the electrical system before connecting the VVX.
IMPORTANT
Exceeding the specified limits will cause damage to the device's electronics. In
the absence of current limiting, there is a risk of fire due to device overheating.
Always connect the VVX to an electrical source with power limitation.
Optional wiring
All VVX are configured with a standard flow output signal (frequency or analogue).
Depending on the selected configuration, a temperature output, an alarm output and an ana-
logue output are optionally available.
Connection cable
Matching connection cables with female connector M12x1 are available in a various lengths
as SIKA accessories. The maximum length of the connection cable is 10 metres. Shielded
connection cables are not necessary.
The connection cable should be fixed near the sensor. This can counteract a negative influ-
ence on the measurement result in case of strong vibrations in the environment.
IMPORTANT
Observe the maximum temperature value permitted by the connection cable.
Avoid contact with the pipework if the process temperature is too high.
Connection M12x1 plug
Screw the coupling socket of the connection cable onto the plug of the VVX.
Tighten the knurled nut of the coupling socket (do not exceed 1 Nm torque).
Earthing for VVX32 / VVX40
The metal pipe section should be earthed if possible. A hole with an M4x6.5 thread is pro-
vided on the VVX for this purpose.
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© SIKA • Ba_VVX • 09/2024
VVX
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