E Instruments E500, User Manual

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Troubleshooting guide
SYMPTOM PROBABLE CAUSES AND REMEDIES
The following symbol "----" appears on the analysis
screen.
The instrument is not able to calculate a numerical value
based on the flue gas analysis conducted. The "----" are
replaced by numbers when the analyzer detects valid
combustion data.
"Max. Lim." or "Min. Lim" appears on the analysis
screen.
The relative sensor is detecting a value that is beyond
the analyzer measuring range. "Max. Lim" or "Min. Lim."
are replaced by numbers when the instrument reveals
values that are within the measuring range.
The sample pump sounds as though it is running
slowly, tends to stop or does not even start.
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. Pump is disabled. The key combination
>
has been
pressed. To re-enable the pump, switch off the
instrument and then switch it on again.
The back lighting of the display does not turn on.
The instrument is faulty. Send it to the service center
for repairing.
The values shown in the analysis screen are not
reliable.
a. Sensor/s is/are faulty. Check that the sensors are
installed correctly by accessing the sensor diagnostics
menu.
b.
The sample probe connection presents a leak.
Check all joints and the conditions of the hose.
c. The instrument is faulty: Send it to a service center
for repairing.