Endress+Hauser mypro CLD 431, Руководство по эксплуатации

Страница: 45 / 54

7 Troubleshooting
7.1 Error indication
The MyPro CLM 431 / CLD 431 indicates
errors by means of an alarm symbol flashing
on the display. It also outputs an error current
of 22 mA +/- 0.5 mA at the current output if
configured accordingly (VH 80 – 83). The error can then be identified in the diag-
nostic parameters via the diagnostic code.
Up to five entries are listed according to
priority.
7.2 Diagnostic codes (error codes)
The following table describes the diagnos-
tic/error codes of this instrument variant. The default error current assignment (active
or not active) for each code is also listed.
Failure
no.
Display Measures Error current
assignment
(default)
E1
EEPROM memory error
Switch instrument off and on again,
return instrument to your local Hauser sales
agency or exchange instrument.
active
E2
Instrument not adjusted, adjustment
data invalid, no user data available or
user data invalid (EEPROM error)
active
E7
Transmitter malfunction active
E10
No temperature sensor connected or
temperature sensor short-circuited
(temperature sensor faulty) Check temperature sensor and connections;
if necessary, check instrument and measuring cable with
temperature simulator.
active
E36
Measuring cell calibration range
exceeded
Recalibrate measuring cell; if necessary, check measuring
cell and connections; check instrument and measuring
cable with conductivity simulator.
active
E37
Below measuring cell calibration range active
E45
Calibration aborted Repeat calibration. active
E46
Current output parameter limits
interchanged
Set value for 20 mA to a value > value for 4 mA. active
E55
Below main parameter measuring
range
Immerse sensor in conductive medium. active
E57
Main parameter measuring range
exceeded
Check measurement, process control and connections; if
necessary, check instrument and measuring cable with
simulator.
active
E59
Below temperature measuring range
active
E61
Temperature measuring range
exceeded
active
E63
Below current output range
Check configuration; if necessary, check instrument and
measuring cable with simulator.
not active
E64
Current output range exceeded Check measured value and current assignment. not active
E71
Inaccurate measurement/polarisation
Clean measuring cell; check table; select suitable
measuring cell.
active
E77
Temperature outside
α
value table
range
Check process / table assignment. not active
Troubleshooting mypro CLM 431 / CLD 431 conductive
42 Hauser