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Manual Ozone Generating System
SMOevo
PLUS
Troubleshooting
Manual_SMOevoPLUS_eng_01.2019.doc
page 151 of 179
Message
No.
Message shown on the display
Description /
Possible Cause
Countermeasures
136
SYS:AI114 Alarm signal fault process
analyzer
Signal < 4 mA or signal > 20 mA.
Cable breakage.
Measuring device or transducer
input PLC defective.
Check signal.
Check cables and connections.
137
SYS:AI116 Alarm signal fault oxygen
concentration ambient air
Signal < 4 mA or signal > 20 mA.
Cable breakage.
Measuring device or transducer
input to PLC defective.
Calibrate ambient air sensor.
Replace, if necessary.
Check signal
Check cables and connections.
138
SYS:AI118 Alarm signal fault gas flow line 1
Signal < 4 mA or signal > 20 mA.
Cable breakage.
Measuring device or transducer
input PLC defective.
Replace sensor.
Check signal.
Check cables and connections.
139
SYS:AI120 Alarm signal fault gas flow line 2
Signal < 4 mA or signal > 20 mA.
Cable breakage.
Measuring device or transducer
input PLC defective.
Replace sensor.
Check signal.
Check cables and connections.
145
PSU:AI200 Alarm signal fault temperature
step-up transformer primary coil
Resistance signal PT100 not
correct.
Cable breakage.
Measuring device or transducer
input PLC defective.
Replace sensor.
Check signal.
Check cables and connections.
146
PSU:AI202 Alarm signal fault temperature
step-up transformer ferrite core
Resistance signal PT100 not
correct.
Cable breakage.
Measuring device or transducer
input PLC defective.
Check signal.
Check cables and connections.