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Manual instruction MM850482 ed.04
14
5 CONNECTIONS
5.1 Electro-pneumatic
connections
To prepare the instrument for operation, connect the sampling probe to the instrument:
•
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 probe temperature sensor plug to the pertinent connector.
•
If necessary, plug the remote air temperature Pt100 sensor to the pertinent connector.
Pneumatic connections
Right side
Left Side
P1 – Draft /pressure
input
GAS INLET
P2 – differential
pressure input
IR printer port
Tair input
Charger connector
Tgas input
WARNING
B
EFORE STARTING THE GAS ANALYSIS PROCEDURE BE SURE THAT
:
P
ROBE DRAFT CONNECTOR
(P1)
AND GAS SAMPLING CONNECTOR
(INLET)
ARE PLUGGED TO THE INSTRUMENT
;
D
RAINING PLUG IS WELL INSERTED IN THE WATER TRAP
;
L
INE FILTER IS CLEAN
.
5.2
Gas probe positioning
The measurement site should be arranged at a distance of 2xD behind the exhaust gas connection pipe,
where D = diameter of the exhaust gas connection pipe.
To position the sampling probe in the exhaust gas pathway a hole of 11/16mm should be drilled and the
retaining cone of the sampling probe firmly screwed in it.