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Operation instructions controller
Pressing the three buttons (
) below the display
simultaneously, acknowledges the fault message.
8.3 Overpressure
When this message appears on the display, the pressure downstream from the high pressure pump is too high.
The high pressure pressure switch is triggered at a pressure of 150 bar, and reduces the speed of the motor. If the
pump speed has dropped enough for the pressure switch to turn on again at 135 bar, the control unit saves this
frequency and the humidifier returns to operating mode. This saved frequency is stored as the maximum frequen-
cy until the fault has been rectified or the control unit has been reset. Since the Klingenburg humidifier continues
to operate and the nominal frequency is thus also shown in the display, an overpressure fault is displayed.
An overpressure fault can be caused by several factors:
the maximum frequency is set too high.
the atmomiser nozzles may be dirty, which leads to increased flow resistance. This leads to higher pressure
for the same amount of water.
Conduit pressure fault
Actual frequency
Target frequency
Actual frequency
Fault message after the set tripping time.
Overpressure message is displayed!
L e i t u n g s d r k s t ö r !
R I s t f r e q . : 0 0 H z
S o l l f r e q u . : 5 6 H z
R I s t f r e q . : 5 6 H z
Motor overheating
The motor in the pump station is protected against damage from overheating. A thermal contact inside the motor
sends a signal to the control unit, causing the motor to switch off and triggering a fault message.
Service indicator
The Service message appears if the recommended oil change intervals have been exceeded. The first message
appears after the first 50 operating hours and then every 1000 operating hours after that. Pressing the Enter key
(
) can suppress the message in order to return to the frequency display. The Service message can be reset in
programming mode once the oil change has been carried out. If the Service message is not reset, it will reappear
in the display.
Error codes
The seven possible faults are displayed by the two-digit error
code in the second line of the display.
M o t o r t e m p !
S I s t f r e q . : 0 0 H z
S e r v i c e
H a r d w a r e e r r
E : x x !
Summary of Contents for CERTO
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