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Error 4 Device is too cold
• The temperature of the analyzer is too low and the measuring may be inaccurate. Warm up
the analyzer in a warm room to increase its temperature above the freezing point (32°F).
Do not use a hot-air blower, air dryer, an oven or any other similar method to warm up the
analyzer.
Error 5 Device is too warm
• The temperature of the analyzer is too high (for instance, if it was exposed to sunlight or
stored in a car heated by sunlight); the measurement may be inaccurate. Cool down the
analyzer below 40 degrees Celsius (104°F).
Warning Battery low
• The battery is almost empty, it has to be replaced or use the external power source.
Error 6 External power overvoltage
• The allowed voltage of the external power source was exceeded. This may be caused by
mains excessive voltage or by the use of an inappropriate or faulty adapter. After sending
this message, the analyzer will immediately shut down to avoid the overheating of voltage
stabilizer circuits. When the defect of the adapter is removed or if the battery is used,
the analyzer can be reactivated.
13.2 Instrument malfunctions
Helium content not displayed
• The probe measures the speed of helium in both directions. If these data differ, measuring
is deemed incorrect and the helium content is not displayed. This situation can be
encountered if the measured gas flows through the probe too fast (lower flow speeds are
compensated for by the calculation), or there is significant background noise (for example,
in the vicinity of a running compressor or gas motor).
• Lower the gas flow speed (this applies to the analyzer not connected using the genuine
sampler), move farther from the source of the noise.
The instrument shows less than 0 % or more than 100 % of helium in the mixture
• The displayed value arises directly from the measured and calculated value and has in no
way been altered in the background. The possible measuring error is symmetrical and, for
example, when measuring a mixture without any helium content, 0.2 % or −0.2 % helium
can be displayed. Accordingly, when measuring pure helium, e.g. 99.8 % or 100.2 % can
be displayed. If the deviation is within the measuring tolerance, this is not the result of
a defect.
Summary of Contents for HE/02
Page 1: ...MANUAL He O2 Analyzer ...
