optris CT - Error Messages and Troubleshooting

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6.2 Error messages
The display of the sensor can show the following error messages:
LT/ G5/ P3/ P7 models:
OVER
Object temperature too high
UNDER
Object temperature too low
^^^CH
Head temperature too high
vvvCH
Head temperature too low
1M/ 2M/ 3M models:
1. Digit:
0x
No error
1x
Head temperature probe short circuit to GND
2x
Box temperature too low
4x
Box temperature too high
6x
Box temperature probe disconnected
8x
Box temperature probe short circuit to GND
2. Digit:
x0
No error
x2
Object temperature too high
x4
Head temperature too low
x8
Head temperature too high
xC
Head temperature probe disconnected
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