OMC-131 True wind display
Users’ manual
V1.14
Page 21
TDC-April-2017
4. Maintenance
The Observator Instruments OMC-131 digital display unit has no moving parts, and requires no
routine maintenance. If required, the display front can be cleaned with a cloth, slightly moistened
with a soft detergent. Care must be taken that no liquid enters the display unit. Solvents should not
be used, and scratches should be avoided.
Fuses: Glass fuses 5x20 mm, slow
250mA for 230 Vac
500 mA for 115 Vac
630 mA for 24 Vdc
The fuse can be reached as follows,
Switch of the main supply and disconnect all the wiring on the rear of the display.
Remove the 8 2.5 mm screws and the 4 nuts on the rear of the display.
With holding the front down, the whole case can be removed now.
The fuse can be reached now. The fuse is placed on the PCB where all the wires are connected to.
