Pr
o
Minent
®
Page 89
Operating step
Note text
Symbol
Effect
Alarm with ack-
Comment
Remedy
on metering on control
nowledgement
Pause contact
Pause
Stop
Stop
no/yes*
No further fault check
–
Pause/Hold
Stop
Control input
Parameter set 2
Stop
Stop
no
Stop button
Stop
Stop
Stop
no
Relay drops out
–
Calibration
Calibration with error
Check measurement
Basic load
Stop
–
–
Repeat calibration
range
Check
sensor/calibration
solution
During servomotor setting
Position feedback
Check direction
Without correct
Check potentiometer
adjustment, the last valid
and relay connection
Upper position <40 % max. value
Final value low
values are still used
Set correct servomotor
Lower position >30 % range
Final value high
operating
range
Error
Fault text
Symbol
Effect
Alarm with ack-
Remarks Remedy
on metering on control
nowledgement
Measured value
mS measurement
Basic load
Stop
yes
Measured value
Check measured variable
Signal exceeded/drops below value
range
Basic load
Stop
yes
outside range
setting
Check mS input
Check sensor and cable
connection
Checkout time exceeded
Check mS sensor
Basic load
Stop
yes
Function detachable
Check sensor function,
extend control time
Correction measured variable
Signal exceeded/drops below value
Check Te. input
Basic load
Stop
yes
Signal <3.8 ±0.2 mA
Check sensor, transformer
or >23 ±0.2 mA
and cable connection
Upper Te. limit value exceeded
Te. limit value
Basic
load
Stop
yes
at
α
≥
4 %/°C
Feed forward control
Signal exceeded/drops below value
Check feed forward
yes
Signal <3.0 ±0.2 mA
Check sensor, transformer
input
or >23 ±0.2 mA
and cable connection
Signal below value, multiplicative
"
Stop
yes
The last valid value
is used
Limit value violation
mS-limit 1
yes
Function detachable
Defi ne cause
after control time
mS-limit 2
Reset values if necessary
Servomotor
Servomotor
position not reached
defective
yes
Servomotor closes
Check servomotor
Electronic error
System error
Stop
Stop
yes
Electronic data defective
Call customer service
LF cable defective,
Basic load
Stop
yes
Sensor cable
Change sensor
amplifi er defective,
defective cable
check SPI
8.7.3
DULCOMETER
®
D1C Measured Variable Inductive Conductivity and
DULCOTEST
®
ICT 2 Inductive Conductivity Sensor, Troubleshooting
Controller
Inductive Conductivity
8.7.4
DULCOMETER
®
D1C Measured Variable Inductive Conductivity and
DULCOTEST
®
ICT 2 Inductive Conductivity Sensor, Maintenance
Controller
The
DULCOMETER
®
controller type D1C for the measured variable inductive conductivity is
maintenance-free.
Sensor
Thanks to its confi guration without electrodes and a fl ow-technically favourable design, this is a
very low-maintenance sensor.
Regularly remove deposits at the sensor to maintain a reliable measuring operation.
NOTE
The formation of deposits can be prevented in most cases. For this purpose, install the
sensor in fl owing media and make sure that the hole at the sensor head is correctly
orientated to the fl ow direction.
* depending on wether “Alarm on” or “Alarm off” set in “General settings”.
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24.02.2009 11:56:09 Uhr
24.02.2009 11:56:09 Uhr