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Attention! The indicator must only be repaired by technicians trained and authorized by Gefran. Any attempt by
unauthorized personnel to repair or change the hardware characteristics of the indicator will void the warranty.
8.1.
Replacing the indicator
The instrument (display + electronic circuits) can be repla-
ced without having to remove the entire indicator from the
panel and disconnect its wiring.
First remove power to the indicator and to any devices
connected to it.
Then release the top and bottom of the faceplate and remo-
ve the instrument (see figure).
Insert the new instrument and restore power.
Attention! Replace the entire indicator if the bla-
de contacts inside the instrument or the protective
case show evidence of burns or are not in perfect
condition.
8.2.
Replacing the gasket
The gasket may lose resiliency over time and due to envi-
ronmental conditions.
To maintain IP65 faceplate protection, replace the gasket
(between faceplate and case and between case and panel)
at regular intervals.
8.3.
Cleaning
To clean the faceplate and the case, use only a soft cloth
dampened with water or alcohol. DO NOT use hydrocarbon
solvents (trichloroethylene, gasoline, etc.).
Do not use compressed air to remove dust from the electro-
nic cards. If necessary, use a clean brush with soft bristles.
8.4.
Disposal
The 650 L, 1250 L indicators must be disposed of in conformity to current laws and regulations.
If not correctly disposed of, some of the components used in the devices may harm the environment.
8.
MAINTENANCE
To replace the gasket between the case and the panel you
have to disassemble the indicator from the panel and then
reassemble it; to replace the gasket between the facepla-
te and the case, follow the instructions for replacing the
indicator).
You can also clean the inside of the indicator if necessary.
To do this, first remove power to the indicator and to any
devices connected to it.
Then slide out the indicator as explained in paragraph "8.1.
Replacing the indicator" to access and clean the inside of
the case "8.1. Replacing the indicator" on page 81).
80224_MHW_650 L - 1250 L_07-2018_ENG - 81
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8. MAINTENANCE
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