Locking/unlocking
The unit can be electronically locked to prevent unwanted adjustment
of the set parameters: Press both setting buttons for 10s. Indication
goes out briefly (acknowledgement of locking / unlocking). Units are
delivered from the factory in the unlocked state.
6. Installation and set-up / operation / maintenance
After mounting, wiring and setting check whether the unit operates
correctly.
When the supply voltage is applied, all LEDs light and go off one after
the other.* The unit is then ready for operation.
*During this time both outputs are switched (= ON).
Indication in the operating mode
Faults displayed during operation:
5 left LED’s flashing in case of short-circuit at the switching output S1;
5 right LED’s flashing in case of short-circuit at the switching output
S2.
Recommended maintenance
Check the sensor tip for build-up from time to time. Clean it with a
soft cloth. If necessary, build-up which adheres firmly (e.g. lime) can
be removed with a common vinegar cleansing agent.
15
ENGLISH
LED’s green = current flow rate
(here: 90 - 105 cm/s).
1st LED flashes = no flow
GN
yellow LED = switch point /
output switched
here: output 1 switched
YE
red LED = switch point / output
not switched
here: output 2 not switched
RD
GN
3
6
9
12
GN
YE
GN
GN
GN
GN
GN
RD
0
15
30
45
60
75
90
105
120
135
150
