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7.0 TROUBLESHOOTING
7.1 Troubleshooting guide
SYMPTOM
The instrument does not work at all. When the On/Off
pushbutton is pressed the instrument does not come
on.
The battery symbol
After
auto-calibration
diagnostics screen appears and gives an error for one
or more cells.
A pressure sensor error is shown in the pressure/
draught screen.
The analysis screen gives a flue gas temperature (Tf)
error.
The following symbol "----" appears on the analysis
screen.
"Max. Lim." or "Min. Lim" appears on the analysis
screen.
The sample pump sounds as though it is running
slowly, tends to stop or does not even start.
K900000000SE 022628A0 071013
is empty on the inside.
is
complete
the
sensor
PROBABLE CAUSES AND REMEDIES
a. Keep the On/Off key depressed for at least 2
seconds.
b. The battery is low; connect the battery charger to
the instrument.
c. The battery pack is not connected to the instrument;
remove the cover from the battery compartment and
connect the connector of the battery pack to the outlet
on the printed circuit board.
d. The instrument is faulty: send it to a service centre.
The batteries are low. The instrument will remain on for
a couple of minutes after which it will switch off;
connect the battery charger.
a. Auto-calibration took place while the flue gas was
being sampled.
b. The O
sensor is faulty, is not connected correctly or
2
is not connected at all. Check the above points, also
referring to sections 5.3, 5.4, 6.6.
c. The sensor was not allowed the necessary
adjustment time or the instrument was left with a low
battery for too long.
There is a calibration problem. Send the instrument to
a service centre.
a. The thermocouple is not connected; connect the
thermocouple to the analyser.
b. The sensor has been exposed to temperatures
greater or lower than its operating temperature range.
c. The thermocouple is faulty. Send the complete
probe to a service centre.
The instrument is not able to calculate a numerical
value based on the flue gas analysis conducted. The "-
---" are replaced by numbers when the analyser
detects valid combustion data.
The relative sensor is detecting a value that is beyond
the analyser's measuring range. "Max. Lim" or "Min.
Lim." are replaced by numbers when the instrument
reveals values that are within the measuring range.
a. Sample flow is obstructed. Check that the water filter
is clean and that it is not completely soaked. Also
check that the hose connected to the probe is not
crushed.
b. Sample intake flow is obstructed. Check that the
particulate filter is clean.
c. The pump is not connected as it should be. Remove
the rear flap and check that the pump's electrical
connector is connected to the printed circuit board.
d. Pump is faulty. Replace the pump unit.
e. Pump is disabled. The key combination
been pressed. To re-enable the pump, switch off the
instrument and then switch it on again.
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