53
Maintenance and troubleshooting
Problem
Bargraph
state
Red LED state
Green LED
state
Current or
frequency
output
state
Meaning / Cause Recommended action
The device
does not
respond
OFF Flashes once
briey every
2s
Flashes once
every second
22mA and
256Hz
Measuring range
exceeded by more than
20%
→ Clear the error by briey pressing
the push-button.
→ Consult the graphs (see
chapter8.2.1).
The device
does not
respond
OFF Flashes twice
briey every
2s
Flashes once
every second
22mA and
0Hz
The ow zero point cali-
bration failed.
→ Clear the error by briey pressing
the push-button.
→ Check upstream/downstream dis-
tances (see chapter8.2.1).
→ Restart the calibration (see
chapter9.7).
→ If the error persists, contact your
Bürkert retailer.
The device
does not
respond
OFF Flashes 3 times
briey every
2s
Flashes once
every second
22mA and
0Hz
The device is out of
service
→ Contact your Bürkert retailer.
The device
does not
respond
OFF Flashes 4 times
briey every
2s
Flashes once
every second
22mA and
0Hz
The full scale calibration
failed because the uid
velocity < 2m/s
→ Clear the error by briey pressing
the push-button.
→ Check the uid velocity.
→ Restart the calibration of the full
scale (see chapter9.8).
The device
does not
respond
OFF Flashes 5 times
briey every
2s
Flashes once
every second
22mA and
0Hz
The calibration of the full
scale failed because the
uid velocity>10m/s.
→ Clear the error by briey pressing
the push-button.
→ Check the uid velocity.
→ Restart the calibration of the full
scale (see chapter9.8).
english
Type 8041