Burkert Type 8041 - Manual (Page 53)

51
Maintenanceandtroubleshooting
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 5 times
briefly every 2 s Flashes once
every second 22 mA and
0 Hz The calibration of the full
scale failed because the
fluid velocity > 10 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).
The sensor
does not
work OFF OFF OFF 0 mA
and
0 Hz The device is not
connected.
→
Connect the device.
The fuse of the installation
is in a bad condition
→
Replace the fuse.
The switch of the instal-
lation is set to OFF
→
Position the installation switch to ON.
- The power supply has
been wrong connected to
the + and - terminals
→
Check the wiring (see chap. 8.3.1,
8.3.2, 8.3.3).
Flashes irreg-
ularly or is off 0 mA
and
0 Hz The power supply is not
stable.
→
Replace the power supply.
OFF 0 mA
and
0 Hz The device is out of
service
→
Return the device to your Bürkert
retailer.
Incorrect flow
measurement. - OFF Flashes once
every second - The K factor has not been
correctly calculated.
→
Recalculate the K factor (see chap.
6.7).
All the
LEDs are
ON OFF Flashes once
every second 20 mA and
240 Hz Measuring range
exceeded by less than
20%.
→
Select the higher measuring range
(see chap. 9.6)
English
Type 8041