Endress+Hauser Proline t-mass 65 PROFIBUS DP, Руководство по эксплуатации

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Trouble-shooting Proline t-mass 65 PROFIBUS DP
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9.3 Process error messages
!
Note!
Also observe the information on the following pages:
→
Page 40 and
→
Page 73
9.3.1 List of process error messages
No. Device status message
(local display)
PROFIBUS measured value status
Extended
diagnostic
message in the
PROFIBUS
master
Remedy / spare parts
Qu
a
lit
y
c
o
d
e
(H
EX
)
Me
as
ure
d
vari
a
bl
e
s
tatus
Qu
a
li
ty
st
a
tu
s
Q
u
al
it
y subs
tatus
Li
m
its
P = Process error
$
= Fault message (with an effect on the current operation)
! = Notice message (without any effect on the current operation)
422 P: FLOW LIMIT
$
: # 422
0x13 BAD Sensor
Failure
Constant Meas. flow
exceeded max limit Cause:
The measured flow has exceeded the maximum
limit.
Remedy:
Reduce the flow rate or replace the instrument
with a suitable size for the application.
!
Note!
Error can be configured as a fault or notice
message.
432 P: FLUID TEMP UNST.
$
: # 432
0x13 BAD Sensor
Failure
Constant Gas temperature
unstable Cause:
The gas temperature is unstable. Measurement
errors may have occured.
Remedy:
Stabilize process conditions or relocate the
instrument to a more stable measuring location.
435 P: FLOW EXT
!: # 435 0x40
0x41
0x42 UNCERTAIN O.K. O.K.
Low
High
Flow in extended
mode Cause:
The flow is measured using extendend mode
(beyond calibration).
Remedy:
Resume normal operation (accuracy of device
maybe affected) or reduce the flow rate.
451 P: 0 ZERO-ADJ. N. OK.
$
: # 451
0x13 BAD Sensor
Failure
Constant Zero adjust is not
ok Cause:
The saved zero point is inaccurate possibly due to
unstable process or flow conditions.
Remedy:
Stabilize process conditions or relocate the
instrument to a more stable measuring location.