CODEL Energy Tech 401 Installation, Operation And Maintenance Manual page 62

EnergyTech 401
Operating and Maintenance Manual
If normalisation is not required, the instrument must hold the temperature of the gas in the duct – analogue input.
4.8.1.22 Oxygen
If normalisation is not required, the instrument must have the normalising parameters for oxygen set.
4.8.1.23 Pressure
If normalisation is not required, the instrument must have the normalising parameters for pressure set to 101kPa
(standard level and keypad input).
Page: 62
NOTE
To correct the data to standard levels of oxygen, an estimate of the oxygen at
the point of measurement is required. If the oxygen level is being continuously
measured, connect the analogue output of the oxygen analyser into the CODEL
analyser, and select the analogue input in the normalisation menu. This input
must be defined as either WET or DRY, depending on how the measurement is
made. After the wet or dry has been defined the analogue input values need
defining, set the 4mA and 20mA values. If the oxygen level is relatively constant
through all firing conditions, then a fixed (keypad) input may be used.
NOTE
With an integrated system the pressure data can be taken to the instrument via
the serial data line.
To correct the data to a standard pressure – normally 101kPa, the pressure at the
point of measurement needs to be determined. If the flue pressure is relatively
constant through all firing conditions, then a fixed input may be used. If the
pressure is not constant, it should be measured and brought into the instrument
via the 4-20mA input within the processor.
NOTE
With an integrated system the pressure data can be taken to the instrument via
the serial data line.
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