Manual instruction MM850482 ed.04
17
When autozero procedure finishes, and no error occurs, a beeping sound advises the operator.
The standard autozero time is set for 60 seconds. If one or more sensors have a problem, the unit will
perform another autozero procedure.
Press the [
ENTER
] key to mute the unit. The following page will be displayed:
The BTU/UNIGAS 1000 is now fully ready for flue gas analysis and any other measurements.
NOTE:
A
FTER THE INSTRUMENT IS SWITCHED ON
,
ALL SETTINGS WILL BE SET TO HOW IT WAS WHEN IT WAS TURNED
OFF
.
6.1.2 Flue
Gas
Analysis
Insert the probe in the chimney. Stop using the retaining cone and adjust the immersion depth for a gas
sampling in the middle of the exhaust gas connection pipe.
Plug the pneumatic connector of the probe to the GAS INLET connector. If you are using the gas
sampling probe with Draft option (double hose model), connect also the draft connector to the UniGas
Pressure/Draft inlet (P1).
Plug the temperature connector of the sampling probe to the pertinent TcK connector.
If required, plug the remote air temperature Pt100 probe to the pertinent connector. It is important to
measure the true combustion air temperature to have a correct boiler efficiency calculation. Unigas
has
an auxiliary Rtd input to measure simultaneously the air temperature. A Pt100 with a 2 meters long cable
can be connected on the right side of the analyzer. Insert the Rtd inside the air combustion aspiration
tube and near the boiler. The UniGas
will show the temperature on the display and the efficiency will be
calculated using this value. If no external Rtd is connected, the analyzer will measure the instrument
temperature (ambient) using the internal sensor.
Pressing the [ ] and [ ] keys you can change page to display all other parameters
