Manual

50
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
briefly every 2 s
Flashes once
every second
22 mA and
256 Hz
Measuring range
exceeded by more than
20%
→ Clear the error by briefly pressing the
push-button.
→ Consult the graphs (see chap.
8.2.1).
The device
does not
respond
OFF Flashes twice
briefly every 2 s
Flashes once
every second
22 mA and
0 Hz
The flow zero point cali-
bration failed.
→ Clear the error by briefly pressing the
push-button.
→ Check upstream/downstream dis-
tances (see chap. 8.2.1).
→ Restart the calibration (see chap.
9.7).
→ If the error persists, contact your
Bürkert retailer.
The device
does not
respond
OFF Flashes 3 times
briefly every 2 s
Flashes once
every second
22 mA and
0 Hz
The device is out of
service
→ Contact your Bürkert retailer.
The device
does not
respond
OFF Flashes 4 times
briefly every 2 s
Flashes once
every second
22 mA and
0 Hz
The full scale calibration
failed because the fluid
velocity < 2 m/s
→ Clear the error by briefly pressing the
push-button.
→ Check the fluid velocity.
→ Restart the calibration of the full
scale (see chap. 9.8).
English
Type 8041