Trouble-Shooting; Trouble-Shooting Instructions - Endress+Hauser PROline prosonic flow 90 Operating Instructions Manual

PROline Prosonic Flow 90
Endress+Hauser
9

Trouble-shooting

9.1

Trouble-shooting instructions

Always start trouble-shooting with the checklist below, if faults occur after start-up or
during operation. This takes you directly (via various queries) to the cause of the prob-
lem and the appropriate remedial measures.
Check the display
No display visible and no
output signals present.
No display visible, but output
signals are present.
Display texts are in a foreign
language.
Measured value indicated,
but no signal at the current
or pulse output
M
Error messages on display
Errors that occur during commissioning or measuring are displayed immediately.
Error messages consist of a variety of icons. The meanings of these icons are as follows:
– Error type: S = system error, P = process error
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– Error message type: = fault message, ! = notice message
– S.VELOC RANGE = error designation (e.g. sound velocity outside measuring range)
– 03:00:05 = duration of error occurrence (in hours / minutes /seconds)
– # 491 = error number
"
Caution!
• See the information on Page 44 ff.!
• The measuring system interprets simulations and measured-value suppression as system errors, but
displays them as information messages only.
Error number:
–
No. 001 399
–
No. 501 799
Error number:

No. 401 499
M
Other error (without error message)
Some other error has
occurred.
o
1. Check supply voltage
o
2. Check device fuse Page 86
85...260 V AC: 0.8 A slow-blow / 250 V
20...55 V AC and 16...62 V DC: 2 A slow-blow / 250 V
o
3. Electronics defective
1. Check whether the ribbon-cable connector of the display module is
correctly plugged into the amplifier board
2. Display module defective
o
3. Electronics defective
Switch off power supply. Press and hold down both the OS keys and
switch on the measuring device. The display text will appear in English
(default) and is displayed at maximum contrast.
o
Electronics PCB defective
System error (device error) has occurred
Process error (application error) has occurred
Diagnosis and remedial measures
9 Trouble-shooting
Terminal 1, 2
o
Order spare part Page 82
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Page 84
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Order spare part Page 82
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Order spare part Page 82
o
Order spare part Page 82
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Page 74
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Page 78
o
Page 79
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