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4.5 SAMPLING THE EXHAUST GAS
Once the zero calibration and test procedures have been completed and the fuel has been selected the probe
can be inserted into the desired vehicle exhaust.
Ensure the probe is inserted into the exhaust pipe so as to not allow air into the probe. The exhaust of a
car can pulse, especially at low RPM, drawing air in causing bad readings, ensure the flexible probe is fully
inserted and the clip attached to the exhaust pipe.
4.6 TURNING THE PUMP ON/OFF
The analyzer is fitted with a pump to draw gas from the vehicle exhaust. To conserve battery power, switch
off the pump when you are not taking a measurement. Gas values will not be displayed when the pump is
turned off .
Use the
key to turn ON and OFF the pump.
The analyzer will block readings while the pump is off and display ‘----‘ on all gas channels.
It is recommended that the analyzer samples fresh air for 60 seconds before the pump is turned off.
Ve hic le
Exha ust
Ensure C la m p is Fixe d
to Ve hic le Exha ust
Vehicle
Exhaust
Ensure Clamp is Fixed
to Vehicle Exhaust
