Burkert 8228 ELEMENT - Page 68

68
Maintenance and troubleshooting
Type 8228
Red
LED
Current
output
Transistor
output
Icon Message dis-
played in the
Info menu
Possible cause Recommended action
ON 22 mA
1)
depending on
thresholds
ERR
+
"E: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
ERR LO and ERR HI
(see chap. 9.13.2).
→ Go into the "Sensor"
function of the
Diagnostic menu to
read the measured
fluid temperature
(chap. 9.13.2).
→ If necessary, clean and/
or recalibrate the con-
ductivity sensor.
→ If necessary, check the
process.
ON 22 mA
1)
depending on
thresholds
ERR
+
"E: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 ERR
LO and ERR HI (see
chap. 9.13.3).
→ Go into the "Sensor"
function of the
Diagnostic menu to
read the measured
fluid temperature
(chap. 9.13.3).
→ If necessary, check
whether the built-in
temperaure probe is
working correctly by
measuring a fluid with
a known temperature.
→ If the temperature
probe is faulty, return
the device to Bürkert.
→ If the temperature
probe is not the cause
of the problem, check
the process.
1)
if the MODE DIAG. function of the "Output.AC1" or "Output.AC2" menu is set to "22 mA" (see chap. 9.11.9); else, the
current output delivers a standard current between 4 and 20 mA
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