28
6 Commissioning/Decommissioning
NOTICE
To ensure that there is enough air circulation, the probe must be freely insulated from its en-
vironment in a radius of 5 cm.
NOTICE
To ensure that there is enough air circulation, the probe must be freely insulated from its en-
vironment in a radius of 5 cm.
Wiring between SAK and LT2 Lambda Transmitter via conventional cable and terminals, see
wiring diagram in chapter 11.4 Electric Connections Device Side until chapter 11.4 Electric
Connections Device Side
Alternatively, direct connection LS2 LT2 without SAK is possible via a customised cable (2 m,
5 m, 10 m and 20 m), see wiring diagram chapter 11.4 Electric Connections Device Side.
• Start up combustion
• Measured value plausible?
Check if necessary via comparative measurement
NOTICE
Almost all extractive O
2
-meters measure ’dry’, in contrast to the in-situ ZrO
2
-meters; i.e. mois-
ture is extracted from the flue gas through a purification process (cooler) or a chemical absorb-
er (silica gel). This reduces the volume of the measured gas, and thus the proportion of O
2
increases. This fact must be taken into account during comparative measurement. A diagram
for converting wet into dry measurements can be found in chapter 11.5 Wet/Dry Measurement
Deviations, Conversion Table
• If large deviations are present, it is possible to compensate for the values obtained via
– the display and operating unit, in [cal]
– the service and diagnostic software
– as follows, using the multifunction key:
Measure the O
2
value at the monitor output or analogue output. Start calibration with the mul-
tifunction key. LED 5 should flash rapidly
Briefly pressing the multifunction key increases the output O
2
value by 0.1 %
Pressing for a longer (time s)
The modification direction is inverted.
NOTICE
Calibration should only be carried out if it was previously ascertained that the comparison in-
strument is measuring correctly (e.g. by using test gases).
In any event, offset calibration should previously have been carried out in operational (warm)
conditions.
It is necessary to ensure that ambient air is present at the measurement site. If this is not en-
sured, the probe must be dismantled again for the offset
To Next Page
Loading...
