Ecom DP3 Operating Instructions Manual page 31

Press <F1> (Start) prior to going thru the following steps to start the measure-
ment:
- release tubing of the flow probe
- wait for zeroing of pressure sensor
- re-connect tubing of the flow probe
- position flow probe into exhaust gas pipe (observe mark for flow direction)
- switch off burner and simultaneously press <F1>
or:
- press <F2> to activate timer (5 sec.) and switch off burner by beep
- after approx. 30 sec. the measurement value converted in negative points
is available
An overview of the measurements is available under „Results". Press <Print> to
print them out.
Gas losses
Surface losses 
Ventilation losses 
Results
Cancel
Select:
ecom-DP3
Heating Check

Heating Check
Gas loss 2.9 %
Points 2.6
Surf. Lo. 2.29 %
Points 3.4
Vent. lo. 3.11 %
Points 3.0
Quit with:
Page 31