E C O P H Y S I C S Troubleshooting
CLD 780 TR / July 2000 138
W-12: “Slowly increasing Zero point! Calibrate zero!“
(only applies to CONT mode)
This warning indicates that during AIC (see section 5.2.2.7.3 window
(58)) the pre-chamber measurement differs from the last zero-point meas-
urement by more than +5 %.
10.1.3 Other possible failures
If when the analyzer is switched on there is no reaction on the display and
the fans do not work, the electric power supply needs to be checked.
Check also the main fuse. The the main fuse is located on the front panel -
remove the power connector first.
Check also fuse F1 (PONOX). If the fuse exchange does not clear the
problem, a service call is indicated.
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