l
44
1 GND
1 RX+
1 RX-
1 TX-
1 TX+
1 GND
1 RX+
1 RX-
1 TX-
1 TX+
SceneScan Fuse Information
The SceneScan system contains two replaceable fuses; one for the Live and the other for
the Neutral. These are located on the connector board as shown below.
Connector Board Fuse
Please refer to SceneScan Sensor connections on page 51 on how
to access the connector board.
To remove a fuse from its housing, fit a flat-head screwdriver into
the slot in the insert - then push it in and turn it anti-clockwise until
the insert releases and can be pulled out.
Reverse the above procedure to replace the fuse.
Both fuses have the same specification.
Live
Neutral
Ensure the replacement fuse has the same specification as
the original fuse.
CAUTION: DOUBLE POLE/NEUTRAL FUSING
Voltage Supply
230v
110v
Normal Operation
630mA
630mA
Low temperature operation
1.25A
2A
The fuses should be 20mm anti-surge glass fuses rated for 250V.
The current rating should be determined by the table below.
Normal operation is where the Sensor is operated at -10°C or
above.
When operating at below this temperature internal heaters warm
the unit at start up.
Summary of Contents for 20-0253
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