Diaphragm Vacuum Pumps N 012, N 024, N 036
Trouble Shooting
Translation of original Operating and Installation Instructions, english, KNF 121222-121485 08/11
19
There is a leak at a connector, in a line, or in the pump
head.
Diaphragm or valve plate are worn, or dirt is in the head.
Section 5 Servicing.
Pump head is not heating up
(.11 and .26 designs only)
Check the cable connections in the terminal box (.11 de-
signs) or electronics housing (.26 designs) respectively
(see Fig. 2).
Check the voltage in the mains power supply.
If you do not find a fault, contact your KNF technical adviser.
Error messages in the display
(
.26-designs only)
Displays
E01:
The temperature measured at the heating inset is outside
the permissible range. For two-headed pumps this refers
to head 1.
Pump and heating inset(s) are switched off.
Displays
E02:
N 012, N 024, N 036:
A two-head pump operating mode has been selected by
mistake.
N 036.0:
The temperature measured at the heating inset of head 2
is outside the permissible range.
Pump and heating inset(s) are switched off.
Displays E03 or E04:
The temperature measured at the heating inset of head 1
(E03) or head 2 (E04), with temperature controlling active,
is 10 °C or more above the setpoint temperature which has
been set.
Pump and heating inset(s) are switched off.
Displays
E05:
Electronics error (transducer mal function).
Pump and heating inset(s) are switched off.
If the pump does not operate properly and you cannot find any of
the above faults, send it to the KNF Service Department.
In order for KNF to repair the pump, the customer must provide a
statement on the media which were pumped and on pump clean-
ing. Please fill out the corresponding KNF form, and submit it
Содержание N 012 AT. 16 E
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