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Diagnostics and troubleshooting
26
8
Diagnostics and troubleshooting
8.1
Troubleshooting
If an illegal configuration exists in the device, the device switches to error mode.
General errors
Error
Possible cause
Device is not responding. Supply voltage does not match that specified on
the nameplate.
Supply voltage has incorrect polarity.
Connecting cables are not in contact with the
terminals.
Output current
Signal line is not wired correctly.
≤ 3.6 mA
8.2
Response of output to errors
The response of the output to error is regulated in accordance with NAMUR NE43.
Factory setting MAX alarm: >21 mA
8.2.1
alarm current
Device
Description
PMC21
Adjusted min. alarm current
PMP21
PMP23
1)
Product Configurator order code for "Service"
8.3
Disposal
When disposing, separate and recycle the device components based on the materials.
9
Maintenance
No special maintenance work is required.
Keep the pressure compensation element (1) free from contamination.
Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
Solution
Apply correct voltage.
Reverse polarity of supply voltage.
Check the contacting of the cables
and correct if necessary.
Check wiring.
1
Option
1)
IA
A0022141
Endress+Hauser
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