MAINTENANCE
TROUBLESHOOTING FLOWCHART (LCD version)
Check Loop
Current at Terminal
Board
Loop Current
Above 23 mA?
Remove Electronic
Module
Loop Current
Above 1 mA?
Replace Terminal
Board
Replace Electronic
Module
Yes
Yes
No
No
Failure to Operate
with Correct Loop
Inputs
Display
Working?
Yes
No
Retest Unit
Good
Display
Key Board
Responds?
Replace Electronic
Module
No
Check Loop
Current at Wiring
Board
Loop Current
22 - 4.0 mA?
Adjust 4 and 20 mA
Unit has
HART?
HART
Working?
Yes
Yes
No
Yes
No
Address
Correct?
Correct Address
Replace Electronic
Module
No
Yes
Unit with Display
Communicates
No
Yes
Reseat Boards
Display
Working?
Retest
No
Yes
1
2
4
See page 11
10
Summary of Contents for KOTRON SMART RF 805
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