Burkert ELEMENT 8222 - Page 67

67
Maintenance and troubleshooting
Red
LED
Current
output
Transistor
output
Icon Message
displayed in
the Info menu
Possible cause Recommended action
OFF 4...20 mA Switched
2)
+
"W:Conductivity" The fluid conductivity is
out of range.
The message is
displayed if the
monitoring of the fluid
conductivity has been
activated, depending
on the set thresholds
WARN LO and WARN
HI (see chpt. 9.13.2).
→ Go into the "Sensor" function
of the Diagnostic menu to
read the measured fluid
temperature (chpt. 9.13.2).
→ If necessary, clean and/or
recalibrate the conductivity
sensor.
→ If necessary, check the
process.
OFF 4...20 mA Switched
2)
+
"W:Polarization" The polarisation slope
is too high.
The message is
displayed if the
monitoring of the
polarisation slope
has been activated,
depending on the set
threshold WARN HI
(see chpt. 9.13.3).
→ Go into the "Sensor"
function of the Diag-
nostic menu to read the
polarisation slope value
(chpt. 9.13.3),
→ If necessary, clean and/or
recalibrate the conductivity
sensor.
OFF 4...20 mA Switched
2)
+
"W:Temperature" The fluid temperature is
out of range.
The message is
displayed if the
monitoring of the fluid
temperature has been
activated, depending
on the set thresholds
WARN LO and WARN
HI (see chpt. 9.13.4).
→ Go into the "Sensor"
function of the Diag-
nostic menu to read the
measured fluid temper-
ature (chpt. 9.13.4),
→ if necessary, check
whether the built-in
Pt1000 is working cor-
rectly by measuring a fluid
with a known temperature.
→ If the Pt1000 is faulty, return
the device to Bürkert.
→ if the Pt1000 is not the
cause of the problem,
check the process.
OFF 4...20 mA Switched
2)
"M:Calib. Date" A calibration of the
conductivity sensor is
due.
The periodicity of the
calibrations is set
within the "INTERVAL"
function of the "CALIB
INTERVAL" menu (see
chpt. 9.12.4).
→ Calibrate the conductivity
sensor (chpt. 9.12.4).
2)
If the “PVAR” function of the “Output.TR1” and/or “Output.TR2” menus is set to “warning” (see chpt. 9.11.10); else, the
transistor outputs are operating depending on the set thresholds.
English
Type 8222 ELEMENT