Faults Without Error Message; Calibration - Grundfos Oxiperm Pro OCD-162 Instrucciones De Instalación Y Programación

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9.12 Faults without error message

Fault
Cause
The chlorine dioxide
dosing pump stops.
The isolating valve of the dosing line is closed.
The DDA pump
displays "ERROR".
The chlorine dioxide dosing pump has a free discharge
into a container. Even if the pump stops, the chlorine
dioxide solution continues running into the container
Overdosing of chlorine
due to a siphon effect. The consequence is overdosing.
dioxide dilution due to
The conditions are:
a free discharge.
• disconnected injection unit
• dosing pump without multi-function valve.
Perceptible smell of
The activated carbon filter/adsorption filter is saturated. Exchange the activated carbon filter/adsorption filter.
chlorine dioxide.
a) Cable connection to controller is incorrectly
installed.
Measured values of
b) Temperature sensor is not connected with
connected pH-probe
temperature compensation.
fluctuate on display.
c) Electrostatic charge of controller by rubbing the
cover.

9.13 Calibration

ClO
2
CAL meas. value
slope: µA/mg/l
CAL result
CAL cycle
on
off
Fig. 18 Structure of the "calibration" menu
Perform calibration only with constant measured
values from the measuring cell. For details, see
installation and operating instructions for the
Note
Note
measuring cell.
Prior to calibration, check the measured value of
the electrode of the measuring cell.
48
calibration
pH
GRUNDFOS
DIN/NIST
CAL meas. value
others
slope:
CAL result
µA/mg/l
CAL cycle
asym. mV
on
off
Remedy
Open the isolating valve. If the Oxiperm Pro operates
in 60 Hz mode, check if the multifunction valve is set
to 6 bars at the overflow side. See also the
installation and operating instructions of the
multifunction valve.
Connect the multifunction valve at the pump. This will
prevent uncontrolled flow of the dosing liquid through
the dosing lines.
Check cable connection.
Connect temperature sensor.
Do not rub hands on/against the cover.
ORP
CAL meas. value
CAL result
CAL cycle
on
off
asym. mV
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