104
K000000000EJ 032433 210519
12.9 Readings→AUX measurements
KEY
FUNCTION
Activate the context keys shown on the
display.
Returns to the previous screen.
CONTEXT KEY
FUNCTION
Selects the available parameters.
Enters in the selected parameter setting.
Selects the available parameters.
OK
◄
►
15/01/14
10:00
Tightness test
Power of burner
Measurements
PARAMETER
DESCRIPTION
The E4500 can perform the tightness test on heating plants which use combustible gases
according to the standards UNI 7129-1: 2015 and UNI 11137: 2012, respectively applicable to
new or renewed piping and to existing piping. The result of this tightness test, whose steps are
described in the following, can be printed, once acquired, by starting the ' print menu ' in any of
the screens of the ' Tightness Test ' menu.
Thermal power of the burner
The measurement of the thermal power at the burner can be performed in different ways,
depending on the type of fuel selected.
Boilers using gaseous fuels
FLOW: if the system is equipped with a volumetric flow meter just enter the value of the fuel
volume flow (m
3
/ h).
COUNTER: this mode can be used if the system is equipped with a volumetric flow meter. The
volume flow is calculated by reading on the counter, while the generator is in steady
operation, the volume of gas flown in a time interval of at least 120 s.
MANUAL: if the procedure was provided by the manufacturer and appropriate instructions have
been specified on the user manual, the operator can find out the thermal power of
the burner and enter it manually. In the absence of counter or any other system for
measuring the flow, the nominal thermal power of the boiler stated by the
manufacturer is to be assumed as the proper value.
Boilers using liquid fuels
FLOW: the value of the mass flow rate (kg / h) of the fuel must be entered.
MANUAL: if the procedure was provided by the manufacturer and appropriate instructions have
been specified on the user manual, the operator can find out the thermal power of
the burner and enter it manually. In the absence of counter or any other system for
measuring the flow, the nominal thermal power of the boiler stated by the
manufacturer is to be assumed as the proper value.
Power of burner
Tightness test
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