Manual instruction MM850482 ed.04
21
Press
[
DRAFT
] again if you want remove the HOLD function, or press the [
ENTER
] key if you to maintain
the HOLD function.
Press
[
ESC
] anyway to return to the measuring page.
6.1.4.1
Differential Pressure Measurement
Using the burner pressure probe (cat. EE300088), it is possible to measure the gas pressure on the burner.
Connect the probe to the UniGas pressure input and then to the burner plug. Follow the procedure described
in the previous paragraph to perform the measurements.
Differential pressure can also be measured by the gas analyser using the P1 and P2 inputs.
6.1.5
Draft with External Probe (optional)
The external probe for the draft measurements (BB830025) it's a special pressure meter that features
advanced specifications and resolution compared to the built-in one. Its range is ±200 Pa and its resolution is
0.1 Pa. The pressure sensor is calibrated in factory.
•
Connect the probe to the instrument using the probe connector and connecting it to the instrument plug
(see the figure below)
•
Put
the
sensor
in
vertical position
on the body of the boiler using its magnet
•
Put the tip possibly at the same height of the sensor using its magnet (see the figure below)
