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PG. 13
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C O I N C E L L B A T T E R Y L I F E
The miniWIPER uses a coin cell battery for backup of the clock when the power is switched off. This
coin cell battery will supply many years of clock operation. Should the coin cell battery discharge,
then it must be replaced by PME. Contact PME.
M A I N T E N A N C E
The miniWIPER will require maintenance from time to time. Parts most likely to need replacement
are the brush and the o-ring sealing the drive shaft. The brush will be replaced by the customer by
replacing the brush+wheel. The o-ring can be replaced by the customer. We do not know the
replacement interval at this time.
H O U S I N G O - R I N G A N D S E A L
When the white pressure housing is screwed on to the black end cap, then it passes along the o-ring
located in the black end cap several revolutions. Keep this o-ring lightly lubricated with silicone
grease or an oil compatible with buna-N o-ring material.
When the miniWIPER is opened after deployment a small number of water drops are deposited on
the inner surface of the o-ring. When the white pressure housing is screwed back on to the black
end cap, then these drops can become trapped inside the miniWIPER. Be sure to carefully dry the
