MemoTrans
44
No. Message
S
1)
D
2)
F
3)
Sensor type Configurable Tests or remedial action
534 Electrolyte warning
M
On
Off
All
No
Electrolyte depletion warning. The
configured electrolyte depletion limit
has been reached. Measurement is still
possible.
1. Replace electrolyte and, if necessary,
the membrane cap.
2. Reset counter for CAL.
3. Replace electrolyte, or replace sensor
cap and electrolyte.
4. Replace sensor.
535 Sensor check
M
On
Off
O (amp.)
No
Specified number of cap calibrations is
reached. Measurement can still take
place.
• Replace sensor cap.
550 Process temperature S
On
Off
C
No
Process temperature above/below
concentration table.
Possible reasons: process value outside
specification, table incomplete.
• Extend table.
551 Process temperature S
On
Off
C
552 Conductivity low
S
On
Off
C
No
Conductivity above/below concentration
table.
Possible reasons: process value outside
specification, table incomplete.
• Extend table.
553 Conductivity high
S
On
Off
C
554 Concentration low
S
On
Off
C
No
Process concentration above/below
concentration table.
Possible reasons: process value outside
specification, table incomplete.
• Extend table.
555 Concentration high
S
On
Off
C
722 Sensor reference
F
On
On
P
Yes
Alarm: Reference membrane impedance
too low.
1. Check or replace sensor.
2. Check/correct reference limit value.
723 Sensor reference
M
On
Off
All
Yes
Warning: Reference membrane imped-
ance too low. Can continue measuring
until the alarm occurs.
1. Check or replace sensor.
2. Check/correct reference limit value.
724 Sensor reference
F
On
On
All
Yes
Alarm: Reference membrane impedance
too high.
1. Check or replace sensor.
2. Check/correct reference limit value.
725 Sensor reference
M
On
Off
All
Yes
Warning: Reference membrane imped-
ance too high. Can continue measuring
until the alarm occurs.
1. Check or replace sensor.
2. Check/correct reference limit value.
1)
Status signal factory setting
2)
Diagnostics message factory setting
3)
Fault current factory setting
