Diagnostics and troubleshooting Deltabar PMD75B HART
62 Endress+Hauser
Diagnostic
number
Short text Remedy instructions Status
signal
[from the
factory]
Diagnostic
behavior
[from the
factory]
484 Failure mode simulation
active
Deactivate simulation C Alarm
485 Process variable
simulation active
Deactivate simulation C Warning
491 Current output
simulation active
Deactivate simulation C Warning
495 Diagnostic event
simulation active
Deactivate simulation C Warning
500 Process alert pressure 1. Check process pressure
2. Check configuration of process
alert
S Warning
1)
501 Process alert scaled
variable
1. Check process conditions
2. Check scaled variable
configuration
S Warning
1)
502 Process alert temperature 1. Check process temperature
2. Check configuration of process
alert
S Warning
1)
503 Zero adjustment 1. Check measuring range
2. Check position adjustment
M Warning
Diagnostic of process
801 Supply voltage too low Increase supply voltage F Alarm
802 Supply voltage too high Decrease supply voltage S Warning
805 Loop current faulty 1. Check wiring
2. Replace electronics
F Alarm
806 Loop diagnostics 1. Check supply voltage
2. Check wiring and terminals
M Warning
1)
807 No Baseline due to insuf.
volt. at 20 mA
Increase supply voltage M Warning
822 Sensor temperature out
of range
1. Check process temperature
2. Check ambient temperature
S Warning
1)
825 Operating temperature 1. Check ambient temperature
2. Check process temperature
S Warning
841 Operating range 1. Check the process pressure
2. Check the sensor range
S Warning
1)
900 High signal noise
detected
1. Check impulse line
2. Check valve position
3. Check process
S Warning
1)
901 Low signal noise detected 1. Check impulse line
2. Check valve position
3. Check process
S Warning
1)
902 Min signal noise detected 1. Check impulse line
2. Check valve position
3. Check process
S Warning
1)
906 Out of range signal
detected
1. Process Information. No action
2. Rebuild baseline
3. Adapt signal range thresholds
C Warning
1)
1) Diagnostic behavior can be changed.