Unit with Display
Communicates
Error
Displayed?
"Open Probe?"
"Shorted Probe?"
"OSC Fail?"
Yes
Check Probe and
Connectors
Check Analog
Parameters
Check Calibration
Parameters
Call Factory
No
Yes
Yes
Yes
Yes
Corrupt Display
Text?
Replace Electronic
Module
No
Yes
Replace Electronic
Module
Same Error
Message?
Retest
No
Yes
"Uncal?"
Active
HART
Analog Loop
Correct?
Trim 4–20mA
Check Offset and
4–20 mA Set Points
No
Yes
No
Call Factory
Display Reading
Correctly?
4
Yes
3
No
"Corrupt
Parameters?"
Yes
No
No
No
"Above Range?"
No
No
"Software Error?"
No
Yes
Yes
50-660 Kotron Model 805 Smart RF Level Transmitter
21
