48
OIE 12en Edition 2019-02
Operating Instructions
Alarms
T
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b
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Relay 2 for collective error
message is active, Relay 1 for
bypass valve has dropped.
►
Check the volumeter for
blocking.
►
Optimize settings in
menus 3.13 –3.16.
In case of independent
measurement with two volumeters:
1. If a bypass function is not
desired, set the bypass limit
value to "0", see "3.14 Limit value
bypass", Page 43
2. Reset the bypass and collective
error message, see "1.10 Reset
bypass and collective error
The maximum permissible flow rate
was exceeded in Volumeter A.
►
Limit the flow rate.
►
Check the volumeter.
►
Use a larger size.
►
Check and eliminate an
electromagnetic interference
using an oscilloscope (e.g.
terminate shield to Gnd).
At least one of the measured
temperatures of the connected
volumeter lies outside the
permissible range.
►
Adapt the temperature of the
volumeter, see "2.19 Minimum
temperature Volumeter",
Page 39, or see "2.20 Maximum
temperature Volumeter",
►
Limit the temperature in the
plant.
►
Use suitable sensors.
►
Use suitable volumeters.
The flow rate exceeds the
maximum scale value of an analog
output.
►
Correct the scale, see "3.03
Scale analog output 1", Page 40
or see "3.05 Scale analog output
2", Page 40.
Fault display
Cause and elimination
Checked
8.06 Alarm
Bypass valve
active. Check
volumeters!
8.07 Alarm
Maximum flow
rate A exceeded.
Check pick up!
8.08 Alarm
Volumeter A or B
out of
temperature range!
8.09 Alarm
Analog output 1 or 2
scale max
exceeded!