52
OIE 12en Edition 2019-02
Operating Instructions
Further faults
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Further faults
Further faults
Cause and elimination
Checked
Rate = 0, although pulse signals can be
measured at the terminals of the electronic
unit with the oscilloscope.
One pick up each is connected per
volumeter and the function pulse
input "Encoder" is selected.
►
Select the "Counter" function,
see "2.13 Function pulse inputs",
Page 38.
A rate of 0 is displayed after
breakdown of pick up in the
encoder mode or temperature
sensor and the total value is not
changing.
►
Check wiring, replace pick up.
Analog output does not function.
Analog output function selected
incorrectly.
►
Select the correct function, see
"3.01 Function analog output",
Page 40.
Signal cable connected to an
incorrect analog output.
►
Correct the connection.
Negative flow rate
The signal wires at the respective
volumeter are connected
incorrectly.
►
Swap the signal wires.
No flow or flow rate too low
►
Check the alarms, see "Menu 8:
Alarms", Page 34.
►
Check the connection of the
sensor.
►
Check the sensor and replace it if
necessary.
►
Check the connection of the
temperature sensor.
►
Check the temperature sensor
and replace it if necessary.
Double flow when the option flow direction
detection is used
Change the function of the pulse
input from "Counter" to "Encoder",
see "2.13 Function pulse inputs",
When the electronic unit is switched on, the
following alarms are displayed:
□
8.07 Max. flow rate A exceeded.
□
8.10 Analog output scale max. exceeded
□
8.12 Sensor failure
□
8.13 Sensor failure
►
Use a power pack 24 V DC 15 W
or insert a debounced switch
between the electronic unit and
power pack
►
Shield the lines to the pick ups
and terminate the shield to Gnd
(chassis) or ground.
