Draft Measurement; Entering Combustion System Data; List Of Display Values - Dräger FG4500 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 appearance 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 measurements with these
fuels. Once the input data is complete, press the arrow 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 deriv. Consideration of oil derivatives
5695100
Edition 01 – May 2022
en
Operating Instructions Dräger FG4500
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