Diagnostics and troubleshooting
Deltabar S FMD77, FMD78, PMD75 with FOUNDATION Fieldbus
100
Hauser
716 Alarm
F>Process
isolating
diaphragm broken
20
0
– Sensor defect.
– Replace sensor.
– Reduce pressure.
26
725 Alarm
F>Sensor
connection
error, cycle disturbance
20
0
– Electromagnetic effects are
greater than specifications in
the technical data.
(
See Section 10.)
– Setscrew loose.
– Block off electromagnetic
effects or eliminate source of
disturbance.
– Retighten setscrew with 1 Nm
(0.74 lbf ft) (see
27
– Sensor or main electronics
defect.
– Replace sensor or main
electronics.
728
Alarm
F>RAM error
20
0
– Fault in the main electronics. – Briefly disconnect device from
the power supply.
2
– Main electronics defect.
– Replace main electronics.
729
Alarm
F>RAM error
20
0
– Fault in the main electronics. – Briefly disconnect device from
the power supply.
3
– Main electronics defect.
– Replace main electronics.
736
Alarm
F>RAM error
20
0
– Fault in the main electronics. – Briefly disconnect device from
the power supply.
4
– Main electronics defect.
– Replace main electronics.
737
Alarm
F>Measurement error 20
0
– Fault in the main electronics. – Briefly disconnect device from
the power supply.
22
– Main electronics defect.
– Replace main electronics.
738
Alarm
F>Measurement error 20
0
– Fault in the main electronics. – Briefly disconnect device from
the power supply.
21
– Main electronics defect.
– Replace main electronics.
739
Alarm
F>Measurement error 20
0
– Fault in the main electronics. – Briefly disconnect device from
the power supply.
25
– Main electronics defect.
– Replace main electronics.
742 Alarm
F>Sensor
connection
error (upload)
20
0
– Electromagnetic effects are
greater than specifications in
the technical data.
(
See Section 10.) This
message normally only
appears briefly.
– Wait a few minutes.
– Perform reset (code 7864)
and recalibrate the device.
20
– Cable connection sensor –
main electronics
disconnected.
– Check cable connection and
repair if necessary.
– Sensor defect.
– Replace sensor.
743
Alarm
F>Electronic PCB error
during initialization
20
7
– Electromagnetic effects are
greater than specifications in
the technical data.
(
See Section 10.) This
message normally only
appears briefly.
– Wait a few minutes.
– Restart the device. Perform
reset (Code 62).
15 /
16
– Main electronics defect.
– Replace main electronics.
744 Alarm
F>Main
electronic
PCB
error
20
0
– Electromagnetic effects are
greater than specifications in
the technical data.
(
See Section 10.)
– Restart the device. Perform
reset (Code 62).
– Block off electromagnetic
effects or eliminate source of
disturbance.
12
– Main electronics defect.
– Replace main electronics.
Diagnostic
Code
Error
response
Message/description XD_
ERROR
Value Bit
BLOCK_
ERROR
Value Bit
Cause
Measure
Prio-
rity
Содержание Deltabar S FMD77
Страница 114: ...www addresses endress com 71336231 ...