Pr
o
Minent
®
Page 41
Operation
Note text
Symbol
Effect
Alarm with
Remarks
Remedy
on metering on control acknowledgement
Pause contact
Pause
Stop
Stop
No/Yes*
No further fault check
–
Pause/Hold
PI-component
frozen
Stop button
Stop
Stop
Stop
No
Relay drops out
–
During calibration
Basic load
Stop
No
No error processing of
–
Sensor
measured variable
Sensor slope too low
Slope O
3
low
25% > sensor slope
Check sensor,
Sensor slope too high
Slope O
3
high
Basic load
Stop
No
> 300% of norm slope
replace if necessary
DPD value <2 % measuring range
DPD value too low
No
Recalibrate after adding O
3
During servomotor setting
Position feed back wrong
Direction check
Without correct
Check connection of relay,
Upper position <40 % max. value
Final value small
adjustment the last
potentiometer. Adjust the
Lower position >30 % range
Final value big
valid values are still used
operation region of the
servomotor correctly
8.2.3
DULCOMETER
®
D1C and DULCOTEST
®
OZE Ozone Sensor for Ozone,
Troubleshooting
Controller
Ozone
*depending on whether "Alarm on" or "Alarm off" set in "General settings"
Fault
Fault text
Symbol
Effect
Alarm with
Remarks
Remedy
on metering on control acknowledgement
Measured value
Checkout time measured value
Check O
3
sensor
Basic load
Stop
Yes
Function defeatable
Check function of sensor,
exceeded
extend check time
Signal exceeded/drops below
Check O
3
input
Basic load
Stop
Yes
at <3.0 mA
Check sensor, transducer and
value
at >21 mA
cable connection
Calibration sensor with error
Check O
3
calibration
Basic load
Stop
No
Metering continues in
Check sensor, replace if
case of error with
necessary, recalibrate
unsteady measured values
if necessary
Correction variable
Pt100-signal
>138.5
Ω
Signal exceeded/drops below value
Check te-input
Basic load
Stop
Yes
Signal <3.0 ±0.2 mA
Check sensor, transducer and
or >23 ±0.2 mA
cable connection
Value last valid is used
Feed forward control
Signal exceeded/drops below
Check feed forward
Yes
Signal <4.0 ±0.2 mA
Check sensor, transducer and
value
input
or >23 ±0.2 mA
cable connection
Value last valid is used
Limit transgression
O
3
limit 1
Function defeatable
Defi ne cause, reset
after checkout time limits
O
3
limit 2
values if necessary
Control "on"
Yes
Control "off"
Stop or
Stop
Yes
Basic load
Servomotor
Position not reached
Servomotor defective
Yes
Servomotor closes
Check servomotor
Electronics error
System error
Stop
Stop
Yes
Elektronic data defective
Call in service
BA_DR_002_02_09_GB_Cooling.indd 41
BA_DR_002_02_09_GB_Cooling.indd 41
24.02.2009 11:56:05 Uhr
24.02.2009 11:56:05 Uhr
