English (GB)
51
9.3 Faults without error message
9.4 Function tests
9.4.1 Hydraulic and electric connections
1. Remove the cover from the system.
2. Check for leaks in hydraulic connection and hoses.
3. Check all cables, fuses and electrical connections.
9.4.2 Current outputs
1. "main menu > function tests > current output"
2. Select the current output to test.
3. Select a value (0 %, 50 % or 100 %).
4. Measure the output current and compare.
9.4.3 Relays
Stop the production before testing the relays. The display shows,
which relay is activated.
1. "main menu > function tests > relays"
2. Press [OK] to activate ("X") or to inactivate ("-").
3. Check the relay and compare.
9.4.4 Display
1. "main menu > function tests > display"
The display gets completely dark and all LEDs light up.
9.4.5 Manually dosing
In this menu, the dosing capacity is adjusted manually.
1. Press [Man].
2. Enter the actuating value (%).
3. Confirm with [OK].
The ClO
2
dosing pump is running with the adjusted dosing
capacity. The "Man" LED is activated.
Fig. 34 Display and control elements
Fault Cause Remedy
The ClO
2
dosing
pump stops.
The isolating valve of the dosing line is closed.
Open the isolating valve. If the system operates in 60 Hz
mode, check if the multi-function valve is set to 6 bars at
the overflow side. See also the installation and operating
instructions of the multi-function valve.
Overdosing of ClO
2
solution due to a
free discharge.
The ClO
2
dosing pump has a free discharge into a
container. Even if the pump stops, the ClO
2
solution
continues running into the container due to a siphon
effect. The consequence is overdosing. The conditions
are:
• disconnected injection unit
• dosing pump without multi-function valve.
Connect the multi-function valve at the pump. This will
prevent uncontrolled flow of the dosing liquid through the
dosing lines.
Perceptible smell of
ClO
2
The activated carbon filter or adsorption filter is
saturated.
Replace the activated carbon filter or adsorption filter.
Measured values of
connected pH-
probe fluctuate on
the display.
• Cable to control unit is connected incorrectly. Check cable connections.
• Temperature sensor is not connected with
temperature compensation.
Connect temperature sensor.
current output
digital pump
ClO2 value
Display Status of relay
"X" activated
"-" inactivated
relays
solen.
valve..........................
-
HCl pump....................... -
NaClO2 pump................ -
ClO2 pump..................... -
alarm relay..................... -
warning relay................. -
TM05 9655 4213
Exit manually dosing with [Man].
Manually dosing is quitted. The ClO
2
dosing pump is
controlled by the currently selected control mode.
The "Man" LED is deactivated.
Exit manually dosing with [Esc].
Manually dosing is still active, the pump continues
dosing the adjusted capacity while the control menus
are accessible. The "Man" LED stays activated.
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