Operation And Maintanence; Operation; Maintenance; Storage - ABB Comem OLI Instruction Manual

L I Q U I D L E V E L I N D I C AT O R - INSTRUCTION MANUAL
20
—

6. Operation and maintanence

The liquid level indicator devices are ready for
operation after installation, electrical connection
and power supply.
6.1
It is possible to detect the conservator oil level
observing the indicator dial:
• Minimum level: when the pointer indicates the MIN
position
• Maximum level: when the pointer indicates the
MAX position.
The electrical micro switches operate at an advance
angle ≤ 5°, with respect to the min or max indications
of the oil level in the conservator. When there is a
double contact, for e.g. double MIN and/or double
MAX (schemes Y o W) the second contact operates at
about 5° after the first contact.
COMEM ADVICES TO DISCONNECT THE EOLI/
EOLI-22/VIEWER DURING THE ELECTRICAL
TRANSFORMER ROUTINE TEST.
6.2
During regular maintenance on the transformer, we
recommend performing the following checks on the
oil level indicator:
• Check the exterior condition of the device
• Remove dirt as necessary.

Operation

NOTE

Maintenance

6.3

Storage

The liquid level indicators can be handled without
any tools. Handle the device with care.
CAUTION
NOT TO PAINT THE DEVICE. IN THIS CASE ANY
GUARANTEES CONCERNING THE CORROSION
RESISTANCE DECLINE.
ONLY MILD SOAP AND WATER SHOULD BE USED
TO CLEAN THE ELECTRICAL BOX COVER.
SOLVENTS MUST NOT BE USED FOR ANY
REASON AS THEY WILL DEGRADE THE
PERFORMANCE OF THE PAINT. USE OF
SOLVENTS ON THE UNIT WILL IMMEDIATELY
VOID THE WARRANTY.
The liquid level indicator must be stored in the
original packing and in a dry place with temperature
in the range -10°C up to 40°C (14°F up to 104°F).
Upon receiving the device, please check:
• The outer surface of the packaging to ensure that
it is intact
• That there are no breakages
If damages are found, please contact ABB and
provide the information from the shipping list and
the serial number.