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Message
Message shown on the display
No.
Warning ozone ambient air sensor lifetime
105
critical - Replace sensor
Warning feed gas dew point out of range -
109
Replace sensor
Warning setpoint corrected due to limits.
113
Warning dose trim out of range. Check
117
settings
Warning fault heater element ozone
121
destructor
SYS:AI100 Alarm signal fault ozone
129
concentration ambient air
Manual_SMOevoPLUS_eng_01.2019.doc
Manual Ozone Generating System SMOevo
Description /
Possible Cause
Lifetime of the ambient air sensor
has elapsed.
Sensor must be replaced to
ensure system operation.
Dew point sensor defective.
The calculated setpoints are not
within tolerance. The system
corrects to min / max setpoints.
The trim frunction has reached its
min / max correction value and
does not operate within operation
range.
Overload of heater elements.
Current relay energized.
Signal < 4 mA or signal > 20 mA.
Cable breakage.
Measuring device or transducer
input to PLC defective.
PLUS
Troubleshooting
Countermeasures
Order and replace new sensor.
Time to exchange approx. 4 weeks
Check the error message on the
display and take countermeasures
in accordance with the operating
instructions of the unit.
Refer to
manufacturer's manual.
Order and replace new sensor.
Check Required Ozone Mass
setting.
Change setpoint, if necessary, to
operate the system with more
reasonable setpoints.
Check Dose setpoint.
Change Dose setpoint, if
necessary, to operate the system
with more reasonable setpoints.
Contact regional Wedeco Service .
Refer to Chapter Contact Addresses
Calibrate ambient air sensor.
Replace, if necessary.
Check cables and connections.
page 149 of 179
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