Endress+Hauser Liquistation CSF28, Руководство по эксплуатации

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Diagnostics and troubleshooting Liquistation CSF28
46 Hauser
No. Message Factory settings Tests or remedial action
S
1)
D
2)
F
3)
920 No sample F On On No inflow during dosing process
• Suction line blocked or leaking
• No inflow of sample
1. Check suction line and suction strainer
2. Check inflow of sample.
928 No sample F On On Sample intake not possible
• Suction line clogged
• Suction height too high
1. Check the suction line and suction strainer.
2. Ensure suitable suction height (< 8 m).
930 No sample F On On Sample flow interrupted during intake
• Suction line blocked or leaking
• No inflow of sample
1. Check the suction line and suction strainer.
2. Check inflow of sample.
970 Curr. input overload S On On Current input overloaded
The current input is switched off from 23 mA due
to overload and reactivated automatically when a
normal load is present.
971 Current Input low S On On Current input too low
At 4 to 20 mA, the input current is less than the
lower failure current.
‣
Check the input for short-circuiting.
972 Curr. input > 20 mA S On On Current output range exceeded
973 Current Input < 4 mA S On On Current output range undershot
974 Diagnostics confirm. C Off Off User has acknowledged the message displayed in
the measuring menu.
975 Device restart C Off Off Device reset
1) Status signal
2) Diagnostic message
3) Failure current
11.6 Queued diagnostic messages
The Diagnostics menu contains all the information on the device status.
Furthermore, various service functions are available.
The following messages are directly displayed every time you enter the menu:
• Most important message
Diagnostic message recorded with the highest criticality level
• Past message
Diagnostic message whose cause is no longer present.
All the other functions in the Diagnostics menu are described in the following chapters.
Diagnostic messages associated with sampling are deleted under the following conditions:
• Diagnostic messages caused by sampling are deleted automatically with the next
successful sampling.
• Diagnostic messages caused by the level of medium in the bottle are deleted the next
time the bottle is changed.
If the diagnostic message "M313 liquid sensor" appears 5 times in succession when
executing a program, the active program is aborted for reasons of safety.