Troubleshooting; Troubleshooting Instructions - Endress+Hauser Proline Prosonic Flow 93C Operating Instructions Manual

Troubleshooting

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58
9 Troubleshooting
9.1

Troubleshooting instructions

Always start troubleshooting with the following checklist if faults occur after commissioning 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.
Important procedures must be carried out before you return a flowmeter to Endress+Hauser
→ ä 6.
Always enclose a duly completed "Declaration of Contamination" form. A copy of the form can be
found at the end of these Operating Instructions!
Check the display
1. Check the supply voltage → Terminals 1, 2
No display visible. No
connection to the FF host
2. Check device fuse → ä 75
system
3. Meter electronics defective → Order spare part → ä 71
No display visible. 1. Check whether the ribbon-cable connector of the display module is correctly plugged
Connection to the FF host
system established
2. Display module defective → Order spare part → ä 71
however.
3. Meter electronics defective → Order spare part → ä 71
Switch off power supply. Press and hold down both the O/S keys and switch on the
Display texts are in a
foreign language. measuring device. The display text will appear in English (default) and is displayed at
maximum contrast.
Measuring electronics defective → order spare parts → ä 71
No connection can be
established with the FF host
system, even though
measured value reading is
visible.
Æ
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:
– Type of error: S = system error, P = process error
– Error message type: $ = fault message, ! = notice message
– MEDIUM INHOM. = error designation (e.g. fluid is not homogeneous)
– 03:00:05 = duration of error occurrence (in hours, minutes and seconds)
– #702 = Error number
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Caution!
Also refer to the information on → ä 42
System error (device error) has occurred→ ä 63
Process error (application error) has occurred→ ä 69
Æ
Faulty connection to the fieldbus host system
No connection can be made between the fieldbus host system and the measuring device.
Check the following points:
Check the supply voltage → Terminals 1/2
Supply voltage
Transmitter
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Proline Prosonic Flow 93C FOUNDATION Fieldbus
85 to 260 V AC: 0.8 A slow-blow / 250 V
20 to 55 V AC and 16 to 62 V DC: 2 A slow-blow / 250 V
into the amplifier board → ä 71
Endress+Hauser