6. Operation
DEPOLOX® Pool Compact
68
EN
DI 2
DI 3
DI 4
DI 5
Digital input 2 active
Digital input 3 active
Digital input 4 active
Digital input 5 active
Check the cause depending on the
use of digital input 2 and 5, e.g.
circulation off, remedy fault in the
circulation, chemical tank empty,
change tank.
Zero point calibrat-
ion ?
Chlorine sensor:
Zero current of sensor > +5 µA or
< –5 µA
Upot potential voltage set incor-
rectly; change if necessary.
Electrodes of chlorine sensor are
dirty, if necessary clean / service.
Sample water is not turned off or
check valve leaks; turn off sample
water if necessary.
DPD calibration ?
Slope error
The current difference required
for span alignment over the entire
measurement range was less than
the minimum value. Range: Mini-
mum current difference
Check chlorine sensor.
Clean electrodes.
Check the pH value of the water
(< pH 8).
Organic chlorine compound (e.g.
chlorine stabilizer chloroisocyanu-
rate) in the water.
Do not add any chlorine stabilizers
to the water.
Chlorine sensor:
Slope error - the sensor current
based on 1 mg/l has fallen below
the required minimum.
Clean chlorine sensor, replace
cleaning sand.
Conductivity
Temperature error ?
Temperature sensor conductivity
sensor defective, not connected or
incorrectly connected.
Check sensor, wiring or connector.
Module
Communication ?
Card of Redox or conductivity sen-
sor is defective.
Check sensor card, if the card is
correctly installed.
pH7 calibration ?
pHX calibration ?
Calibration ?
Offset calibration ?
pH:
In pH 7 calibration, the sensor sig-
nal is outside the range -100 to
+100 mV or the sensor issues a
signal outside the range 46 to 70
mV per pH increment, the cali-
bration point distance is smaller
than 1 pH increment.
Check the electrode.
Check buffer solutions, replace if
necessary.
mV:
The mV sensor correction offset is
outside the range –50 to +50 mV.
Check the electrode.
Check calibration solutions,
replace if necessary.
Conductivity: Slope > 1.4 or < 0.6
Offset error in case of a tempera-
ture calibration.
Factory calibration ? Hardware or electronic error
Contact Service.
Setpoint ?
Due to modification of the measu-
rement range, the controller set-
point is outside the range.
Reset the controller setpoint or
adjust the measurement range.
Limit value ?
Due to modification of the measu-
rement range, the limit value is
outside the range.
Reset the limit value or adjust the
measurement range.
Error message
Cause
Remedy
