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NOTE
LED F4
Low water level
The LED above key 4 (horn) illuminates if the water level is low. The
low water level is also registered via relay 3. Contacts C and NC are
connected for this purpose.
Press key 4 (horn) or close the contacts of the "Delete externally"
input to confirm the alarm.
After confirmation, the LED extinguishes via key 4 and relay 3 is re-
activated (contacts C and NO are connected).
The alarm is also deleted without it being acknowledged once the low
water level has been eliminated after the following analysis.
Measuring fault analysis
The red alarm LED above key 4 (horn) illuminates if the calculated
indicator quantity is between >0 and 10%. This message is only
output once and can be acknowledged by short pressing key 4
(horn) at the instrument or a contact via "Delete externally".
Both the red alarm LED and the standby LED (via key 3) flash
when the calculated indicator quantity is zero. The external inputs
"Stop" and "Delete externally" are ignored. You now have to re-
place the indicator bottle (see the section entitled
bottle" on page 40).
indicator
The LED above key 4 (horn) flashes and the instrument goes into
standby mode if the measuring fault is due to lack of indicator.
Damaged or bent lines can cause this error. The indicator bottle
may also be empty if the indicator level has been set incorrectly.
Defective pump motor
The F4 fuse on the main board protects the pump motor. After a short
circuit, the LED next to fuse F4 is off..
Exchange the pump motor and F4 fuse.
Check that the green LED is lit again.
Caution! The pump motor can also stop without a short circuit. This
will not trip the F4 fuse. In the event of a low indicator level
(measurement disruption analysis), always check the pump motor by
pressing the 'manual' button down for 2 seconds. If the motor no
longer turns, replace it.
Error messages/Troubleshooting
"Replacing the
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