60
– Check if the pressure gauge for compressed air (5) shows 4 to 6 bar
(60 to 90 psi).
– Check if the cock (3) is properly shut, or else the O-ring (4) will not seal.
Check if the O-ring (4) is in a good condition.
– Check if the combustion tube is broken or cracked.
– Check for gas leakage.
– Check if the chemicals are saturated and have become hard.
– The paper filter could also be the cause. For changing the paper filter, read
the operating manual.
3.17.2
94BOn the rear-side of the analyzer:
The contents of the gas cleaning furnace could be worn out and clogged.
3.17.3
95BInside the analyzer:
3.17.3.1 Oxygen solenoid valve (V5) may be defective
• Open the left-side panel of the analyzer.
• Unscrew the upper tube (1). The oxygen should rush out when the power
switch is set to pos. 2.
If not:
– There may be no oxygen supplied.
Fig. 35: terminal of the solenoid coil
– 220V AC is not measured on the terminal (2) of the solenoid coil.
– The solenoid valve is clogged.
• Clean the solenoid valve.
If the fault is still present, then:
• Switch off the power, (set the power switch to position 0)
• Pull out the socket (2) from the coil and measure the coil resistance. 3.3K
is normal.
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