9 Performing the measurement
54
9.3 Carry out gas path check
Regularly check the measurement system (measuring instrument + flue
gas probe) for leaks.
In particular, too high an O2 value may be an indicator of a leaking
measurement system.
| Gas path check.
9.4 Use of flue gas probe
Check thermocouple before use
The thermocouple of the flue gas
probe must not be touching the probe
cage.
Bend the thermocouple back if
necessary.
Align flue gas probe
The thermocouple must be freely
exposed to the flue gas flow.
Align the probe by turning it as
required.
Search for corestream
The tip of the probe is in the corestream of the flue gas.
Start corestream search: tap .
Perform zeroing. Please follow the instructions.
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