Table 12–2: No detector response
Possible cause
Remedy
No power
Check line voltage setting, plug in power cord
Power switch off
Turn this switch ON (at the rear panel)
Faulty fuse
Replace fuse
Divergent mains voltage
Verify line voltage
Warning:
To avoid electric shock, connect the instrument to a grounded power source
with a line voltage within the specified ratings.
The instrument may display the following messages on the LCD screen or PC control software
during a measurement:
Table 12–3: Messages
Message
Advice
The output is either above +1.0 V or below –1.0
V. Pressing AZERO may give an adequate
readout again. If not, the autozero function
cannot compensate the background cell
current. Advice: Use a less sensitive range in
the SETUP menu.
02 PAD overload
The charging current in pulse mode is out of
range. Pressing AZERO may give an adequate
readout again. If not, we recommend changing
the pulse settings (increase t1) or using a less
sensitive range.
a. An ‘Out of range’ error appears when the cell current Icell exceeds the limit of the current range at which the instrument
performs the measurement.
Figure 12–1: Example of a chromatogram where the cell current exceeds the maximum
current level and the signal is “out of range”
It is important to recognize an out-of-range (overload) situation, because it may lead to erratic
results when quantifying analyte concentrations in samples.
December 16, 2021, 715007395 Ver. 00
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