Trouble-Shooting; Trouble-Shooting Instructions - Endress+Hauser PROline prosonic flow 93 Operating Instructions Manual

PROline Prosonic Flow 93 PROFIBUS-DP/-PA
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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. The routine takes you directly to the cause of the problem and the
appropriate remedial measures.
Caution!
In the event of a serious fault, a flowmeter might have to be returned to the manufacturer
for repair. The procedures on Page 8 must be carried out before you return a flowmeter
to Endress+Hauser.
Always enclose a duly completed "Declaration of contamination" form. You will find a
preprinted form at the back of this manual.
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.
▼
Error messages on display
Errors which occur during commissioning or measuring operation are displayed immediately.
Error messages consist of a variety of icons. The meanings of these icons are as follows (example):
– Error type: S = System error, P = Process error
$
– 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
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Caution!
• See the information on Page 61 ff.!
• The measuring system interprets simulations and positive zero return as system errors, but displays
them as notice messages only.
Error number:
No. 001 – 399
No. 501 – 699
Error number:
No. 400 – 499
No. 700 – 799
▼
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1. Check supply voltage
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2. Check device fuse Page 140
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
3. Measuring electronics defective
1. Check whether the ribbon-cable connector of the display module is
correctly plugged into the amplifier board
2. Display module defective
3. Measuring electronics defective
Switch off power supply. Press and hold down both the

+/ keys and switch on the measuring device again. The display text will
appear in English (default) and is displayed at maximum contrast.
System error (device error) has occurred
Process error (application error) has occurred
9 Trouble-shooting
Terminal 1, 2 (Page 49)
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Order spare part
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Page 138
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Order spare part Page 136
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Order spare part
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Page 125 ff.
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Page 125 ff.
Page 136
Page 136
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