54
Maintenance and troubleshooting
Problem
Bargraph
state
Red LED state
Green LED
state
Current or
frequency
output
state
Meaning / Cause Recommended action
The sensor
does not
work
OFF OFF OFF 0mA
and
0Hz
The device is not
connected.
→ Connect the device.
The fuse of the instal-
lation 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
chapter8.3.1, 8.3.2, 8.3.3).
Flashes
irregularly or
is o
0mA
and
0Hz
The power supply is not
stable.
→ Replace the power supply.
OFF 0mA
and
0Hz
The device is out of
service
→ Return the device to your Bürkert
retailer.
Incorrect
ow meas-
urement.
- OFF Flashes once
every second
- The K-factor has
not been correctly
calculated.
→ Recalculate the K-factor (see
chapter6.8).
All the
LEDs are
ON
OFF Flashes once
every second
20mA and
240Hz
Measuring range
exceeded by less than
20%.
→ Select the higher measuring range
(see chapter9.6).
english
Type 8041