5 Installation
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5.3 Installing the probe
CAUTION:
The first commissioning / first calibration must be carried out in environment
temperatures of -20...+40°C with air (offset calibration).
If this should not be ensured in the inserted condition, the first caliration of the probe
must be carried out in developed condition and may be inserted thereafter.
A first calibration uring too high flue gas temperatures is leading to storing wrong
datas of the probe, which can be affected the accuracy and the durability of the
probe.
Bevor calibration, after setting the internal cell resistance (chapter 6.2), you have to
trigger an exchange of the probe via parameter 109. So all stored datas of the probe
will be deleted and uring offset calibration be refreshed.
CAUTION:
When installing the probe and during subsequent operation, take care to ensure that
the probe does not come into contact with oil, grease or boiler cleaning agents.
Contaminated or dirty probes can be recognised by their potential difference across
air gap U-O2 of
<–20mV, or >+20mV. Furthermore, the probe must always be kept in operation once
installed. This prevents humidity from settling on the measuring cell, which in certain
circumstances may lead to measurement errors and the destruction of the probe!
• Install and align the probe
Counter flange standard DN65
Counter flange in version “blow-out device” DN80
CAUTION!
Don’t forget the seal between the counter-flange and the probe flange.
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