Endress+Hauser Proline Prosonic Flow 90 Operating Instructions Manual page 82

9 Trouble-shooting
82
Type Error message / No.
S RANGE CUR.OUT n
! # 351...354
S RANGE FRQ.OUT n
! # 355...358
S RANGE PULSE n
! # 359...362
S SIGNAL TOO LOW
$
# 391
→
No. # 5xx Application error
S SW.-UPDATE ACT.
! # 501
S UP-/DOWNLOAD ACT
! # 502
S INITIAL. RUN
$
# 591
Cause
Current output:
Flow is out of range.
Frequency output:
Flow is out of range.
Pulse output:
Pulse output frequency is out of range.
Attenuation of acoustic measurement
section too high.
New amplifier or communication (I/O
module) software version is loaded.
Currently no other functions are pos-
sible.
Up- or downloading the device data
via configuration program. Currently
no other functions are possible.
Initialisation is running.
All outputs are set to 0.
Proline Prosonic Flow 90
Remedy / spare part
– Change the upper or lower range
values, as applicable.
– Increase or reduce flow, as applica-
ble.
– Change the upper or lower range
values, as applicable.
– Increase or reduce flow, as applica-
ble.
1. Increase the setting for pulse
weighting
2. When selecting the pulse width,
choose a value that can still be
processed by a connected counter
(e.g. mechanical counter, PLC
etc.).
Determine the pulse width:
– Variant 1: Enter the minimum
duration that a pulse must be
present at the connected coun-
ter to ensure its registration.
– Variant 2: Enter the maximum
(pulse) frequency as the half
"reciprocal value" that a pulse
must be present at the con-
nected counter to ensure its
registration.
Example:
The maximum input frequency of
the connected counter is 10 Hz.
The pulse width to be entered is:
1
--------------------- -
=
50 ms
⋅
2 10 Hz
3. Reduce flow.
– Check to see if the coupling fluid
must be renewed.
– It is possible that the fluid indicates
too much attenuation.
– It is possible that the pipe indicates
too much attenuation.
– Check the sensor spacing
(Installation dimensions).
– Reduce the number of traverses if
possible.
Wait until the procedure is finished.
The device will restart automatically.
Wait until the procedure is finished.
Wait until the procedure is complete.
Endress+Hauser