Draft Measurement; Entering Combustion System Data; List Of Display Values - Dräger FG4200 Operating Instructions Manual

6.6 Draft measurement

If draft measurement is enabled in the settings, the draft (differential
pressure) of the flue gas can be measured. This requires moving the
flue gas probe from gas inlet G to pressure connection P.

6.7 Entering combustion system data

If the input of combustion system date has been enabled in the device
settings, the boiler temperature, the smoke numbers and the appear-
ance of oil derivatives can be entered. It is only necessary to enter
smoke numbers and oil derivatives in case of combustion with fuel oils
(light fuel oil and heavy fuel oil) and are only available for measure-
ments with these fuels. Once the input data is complete, press the ar-
row button >>.
The result summary is then displayed and can be scrolled through using
the arrow buttons << / >>.

6.8 List of display values

T-A Combustion air temperature
T-G Flue gas temperature
O Measured oxygen
2
CO Measured carbon monoxide
CO Measured carbon dioxide
2
qA Determined flue gas loss of flue gas
CO-0 Determined carbon monoxide content relative to 0 vol. % oxygen
Eta Determined combustion-technical combustion efficiency
T-Dew Determined temperature of the dew point
Lambda Determined combustion air ratio
Draft Measured induced draft
T-boiler Entered boiler temperature
O -A Measured oxygen content of combustion air
2
Smoke no. Average of the entered smoke numbers
Oil derivative Consideration of oil derivatives
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Edition 04 – January 2019
en
Operating Instructions Dräger FG4200
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