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- Series VMM
Installation of VMM
Technical changes reserved
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4.1
Installation instructions display electronics
Compact version (standard):
For the compact version the display electronics housing is mounted on the sensor. Therefore
no cable is necessary between sensor and display electronics.
Remote version (optional):
The display electronics needs to be mounted separately from the sensor if:
•
the mounting area is difficult to access or there is a lack of space,
•
medium and ambient temperatures are extremely high,
•
there is strong vibration.
The display electronics has to be mounted free of vibrations!
Make sure that the cables are properly installed at high humidity
and wet conditions.
The electrode cable must be fixed. If the conductivity of the medium
is low, cable movements may change the capacity considerably and
thus disturb the measuring signal.
Do not lay the cables close to electrical machines and switching elements.
Equipotential bonding must be ensured between sensor and display electronics.
IMPORTANT! Pay attention to the maximum cable
length!
For the separate version, the minimum permissi-
ble conductivity of the medium is determined by
the distance between the sensor and the display
electronics.
The maximum cable length to ensure accuracy is
656 ft (200 m) (
