Endress+Hauser Mycom S CPM 153, Operating Instructions Manual

Page: 95 / 137

Mycom S CPM 153 8 Troubleshooting
Hauser 95
E027 Failure Compressed air fail-
ure Pressure below permitted minimum yes no no
E 030 Failure SCS fault reference
electrode 1 Reference impedance too high:
Check reference element and, if neces-
sary replace reference or combination
electrode
For IsFET sensor: leak current > 400 nA.
Replace sensor.
yes no – –
E 031 Failure SCS fault reference
electrode 2 yes no – –
E 032 Failure Outside set slope
range for sensor 1
Sensor aged or defective;
Reference aged, defective or diaphragm
blocked;
Buffer solutions too old or contaminated;
PML not in the buffer solutions
yes no – –
E 033 Failure Outside set zero point
for sensor 1 yes no – –
E 034 Failure Outside set offset
range for sensor 1 yes no – –
E 035 Failure Outside set slope
range for sensor 2
Sensor aged or defective;
Reference aged, defective or diaphragm
blocked;
Buffer solutions too old or contaminated;
PML not in the buffer solutions
yes no – –
E 036 Failure Outside set zero point
for sensor 2 yes no – –
E 037 Failure Outside set offset
range for sensor 2 yes no – –
E038 Mainte-
nance Delta limit exceeded Difference between channel 1 and 2
measured values too high. Process to
inconsistant or sensor defective. Replace
sensor if necessary. yes no – –
E040 Mainte-
nance SCC / electrode sta-
tus of sensor 1 bad
Check sensor, replace if necessary;
maybe clean, (glass membrane blocked
or run dry; diaphragm blocked).
yes no –
E041 Mainte-
nance SCC / electrode sta-
tus of sensor 2 bad yes no –
E043 Mainte-
nance Buffer difference
channel 1 too small Wrong buffer used;
Buffer entry incorrect; buffer self-recogni-
tion defective. yes no –
E044 Mainte-
nance Meas. value channel
1 unstable PAL missing; sensor too old; sensor some-
times dry; cable or plug defective. yes no –
E045 Failure Calibration aborted Repeat calibration and renew buffer solu-
tion. Replace electrode if necessary. yes no –
E048 Mainte-
nance Buffer difference
channel 2 too small Wrong buffer used;
Buffer entry incorrect; buffer self-recogni-
tion defective. yes no –
E049 Mainte-
nance Meas. value channel
2 unstable PAL missing; sensor too old; sensor some-
times dry; cable or plug defective. yes no –
E054 Mainte-
nance Dosage time alarm Dosage time exceeded at total dosage.
Dosage interrupted, dosing agent empty
or process too inconsistant. yes no no
Error
no. NAMUR
class Error message Possible causes / measures Alarm
contact Error
current Automatic
cleaning
start
Fact User Fact User Fact User