meter and the cabinet display is
reading about the same value. Record the final calibration factor for
reference.
2. FACTORY CALIBRATION PROCEDURE:
2.1 Ensure the safety requirements are in place.
2.2 Completely remove the top
cabinet lid by turning the 2 black
plastic fastener anti-clockwise
until it pops up & unplug the earth
wire connected to the lid.
WARNING: Ensure the cabinet is
unplugged from the main supply!
2.3 Locate the ZP22 interface controller board, IR sensor and board. See
photo below for the typical layout of the boards.
Lid
Plastic fastener at
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