Process Error Messages - Endress+Hauser Proline Prosonic Flow 93T Portable Operating Instructions Manual

Troubleshooting
!
54
9.3

Process error messages

Process errors can be defined as either "Fault" or "Notice" messages and can thus be weighted
differently.
Note!
See the information on  ä 37 ff. and  ä 55.
Type Error message / No.
P = Process error
$ = Fault message (with an effect on the inputs/outputs)
! = Notice message (without any effect on the inputs/outputs)
P PIPE DATA? CH1
$
# 469
P S. V. RANGE CH1
$
# 492
P INTERF. CH1
! # 495
Cause
The internal diameter is negative.
The sound velocity in channel 1/2 is
outside the search range of the
transmitter.
The wave transmitted in the pipe may
superimpose the useful signal. We
recommend you alter the sensor
configuration in the event of this error
message.
"
Caution!
The sensor configuration must be changed
if the measuring device indicates zero flow
or low flow.
Proline Prosonic Flow 93T Portable
Remedy
In the "PIPE DATA" function group, check
the values of the functions "OUTER
DIAMETER" and "WALL THICKNESS" or
"LINING THICKNESS".
– Check the installation dimensions.
– If possible, check the sound velocity of
the liquid or check the specialist
literature.
If the current sound velocity is outside the
defined search range, the corresponding
function must be changed in the LIQUID
DATA function group.
Detailed explanations can be found under
the SOUND VELOCITY LIQUID function
(6542).
In the SENSOR CONFIGURATION
function (6882), change the number of
traverses from 2 or 4 to 1 or 3 and mount
the sensors accordingly.
Endress+Hauser