Xylem WEDECO SMOevo PLUS Series Original Manual page 154

Message Message shown on the display
No.
SYS:AI114 Warning process analyzer value
191
low
SYS:AI114 Alarm process analyzer value low
192
SYS:AI116 Alarm oxygen concentration
193
ambient air high
SYS:AI116 Warning oxygen concentration
194
ambient air high
SYS:AI116 Warning oxygen concentration
195
ambient air low
SYS:AI116 Alarm oxygen concentration
196
ambient air low
SYS:AI118 Warning gas flow line 1 low
199
Manual_SMOevoPLUS_eng_01.2019.doc
Manual Ozone Generating System SMOevo
Description /
Possible Cause
Process value of the feedback
variable too low
Process value of the feedback
variable too low
Oxygen concentration in ambient
air too high.
Ambient air sensor defective.
Oxygen concentration in ambient
air too high.
Ambient air sensor defective.
Oxygen concentration in ambient
air too low.
Ambient air sensor defective.
Oxygen concentration in ambient
air too low.
Ambient air sensor defective
Gas flow rate too low,
Measuring device defective
PLUS
Troubleshooting
Countermeasures
Check settings
Check settings
Search for leakage and rectify.
Calibrate ambient air sensor.
Replace, if necessary.
Search for leakage and rectify.
Calibrate ambient air sensor.
Replace, if necessary.
Ventilate room.
Check air preparation system
(optional).
Calibrate ambient air sensor.
Replace, if necessary.
Ventilate room
Check air preparation system
(optional)
Calibrate ambient air sensor.
Replace, if necessary.
Check gas flow volume.
Check manual valve setting.
Check gas supply.
Check introduction system:
back pressure too high?
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