Endress+Hauser Cerabar S PMP7, Operating Instructions Manual

Page: 43 / 56

Cerabar S 4 to 20mA HART Troubleshooting
Hauser 43
732 (E732) Error
C
Factory
setting:
Warning C>LRV Temp. user limits
exceeded – Temperature measured value has
undershot the value specified for the
Tmin ALARM WINDOW parameter.
– Check system/temperature
measured value.
– Change value for Tmin ALARM
WINDOW if necessary. (

See also
Page 35, parameter description for
Tmin PROCESS.)
48
– Loose connection at sensor cable – Wait a short period of time and
tighten the connection, or avoid
loose connection.
733 (E733) Error
C
Factory
setting:
Warning C>URV Temp. User limits
exceeded – Temperature measured value has
overshot the value specified for the
Tmax ALARM WINDOW
parameter.
– Check system/temperature
measured value.
– Change value for Tmax ALARM
WINDOW if necessary. (

See also
Page 35, parameter description for
Tmax PROCESS.)
47
736 (A736) Alarm
B B>RAM error – Fault in the main electronics. – Briefly disconnect device from the
power supply.
4
– Main electronics defective. – Replace main electronics.
737 (A737) Alarm
B B>Measurement error – Fault in the main electronics. – Briefly disconnect device from the
power supply.
20
– Main electronics defective. – Replace main electronics.
738 (A738) Alarm
B B>Measurement error – Fault in the main electronics. – Briefly disconnect device from the
power supply.
19
– Main electronics defective. – Replace main electronics.
739 (A739) Alarm
B B>Measurement error – Fault in the main electronics. – Briefly disconnect device from the
power supply.
23
– Main electronics defective. – Replace main electronics.
741 (A741) Alarm
B B>TANK HEIGHT out of edit
limits – LEVEL MIN or LEVEL MAX has
been changed.
– Perform reset (Code 2710) and carry
out calibration again.
44
742 (A742) Alarm
B B>Sensor connection error
(upload) – Electromagnetic effects are greater
than specifications in the technical
data.

See Technical Information
TI00383P. This message normally
only appears briefly.
– Wait a few minutes.
– Perform reset (Code 7864) and carry
out calibration again.
18
– Cable connection sensor –main
electronics disconnected.
– Check cable connection and repair if
necessary.
– Sensor defective. – Replace sensor.
743 (E743) Alarm
B B>Electronic PCB error during
initialization – Electromagnetic effects are greater
than specifications in the technical
data.

See Technical Information
TI00383P. This message normally
only appears briefly.
– Wait a few minutes.
– Restart the device. Perform reset
(Code 62).
14
– Main electronics defective. – Replace main electronics.
744 (A744) Alarm
B B>Main electronic PCB error – Electromagnetic effects are greater
than specifications in the technical
data.

See Technical Information
TI00383P.
– Restart the device. Perform reset
(Code 62).
– Block off electromagnetic effects or
eliminate source of disturbance.
11
– Main electronics defective. – Replace main electronics.
745 (W745) Warning
C C>Sensor data unknown – Sensor does not suit the device
(electronic sensor nameplate).
Device continues measuring.
– Replace sensor with a suitable
sensor.
56
Code Error type/
NA 64 Message/description Cause Measure Priority