Promag 50
Troubleshooting
Hauser
79
9
Troubleshooting
9.1
Troubleshooting instructions
Always start troubleshooting 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.
Check the display
No display visible and no
output signals present.
1.
Check the supply voltage
terminals 1, 2
2.
Check the power line fuse
85 to 260 V AC: 0.8 A slow-blow / 250 V
20 to 55 V AC / 16 to 62 V DC: 2 A slow-blow / 250 V
3.
Measuring electronics defective
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No display visible, but
output signals are
present.
1.
Check whether the ribbon-cable connector of the display module is correctly
plugged into the amplifier board
2.
Display module defective
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3.
Measuring electronics defective
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Display texts are in a
foreign language.
Switch off power supply. Press and hold down both the
OS
buttons and switch on the
measuring device. The display text will appear in English (default) and is displayed at
maximum contrast.
Measured value
indicated, but no signal at
the current or pulse
output.
Electronics board defective
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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
–
EMPTY PIPE
= Type of error, e.g. measuring tube is only partly filled or completely empty
–
03:00:05
= duration of error occurrence (in hours, minutes and seconds)
–
#
401 = error number
"
Caution!
• See the information on
• The measuring system interprets simulations and positive zero return as system errors, but displays them as notice
message only.
Error number:
No. 001 – 399
No. 501 – 699
System error (device error) has occurred
Error number:
No. 401 - 499
Process error (application error) has occurred
Other error (without error message)
Some other error has
occurred.
Diagnosis and rectification
