CODEL Energy Tech 401 Installation, Operation And Maintenance Manual page 119

Symptom
3. Display message
'Waiting for Reference'
Symptom
4. Data valid LED not
illuminated
4.1. Ref. failure
Issue: A Revision: 1 Date: 24/07/19
Possible Cause
Reference wave failure Check
between
supply & signal
processor
also
power supply &
transmitter
Check ref. wave in
power supply –
use
@ terminals 4&5
Check ref. wave in
signal processor –
use
@ terminals 2&5
Chopper motor failure Check if chopper
in transmitter
blade is rotating
Replace chopper
motor
Possible Cause
Analyser fault condition Interrogate
status in Mode 4
Reference wave failure Proceed
symptom 3
Ref: 100606
Section 6
Test Result
wiring Wiring OK
power
Wiring incorrect
and
between
37Hz square
wave approx. 12V
oscilloscope - OK
See above – not
OK
37Hz square
wave approx. 12V
oscilloscope - OK
See above – not
OK
No
Yes
Fault clears
Fault continues
Test Result
fault *All Clear*
Fault condition
identified
as for Fault clears
Fault continues
Maintenance
Action
Proceed to next test
Correct wiring
Proceed to next test
Proceed to next possible
cause
Contact your CODEL supplier
Check & rectify
wiring/continuity between
power supply & signal
processor
Proceed to next test
Contact your CODEL supplier
No further action
Contact your CODEL supplier
Action
Contact your CODEL supplier
Proceed to relevant symptom
No further action
Contact your CODEL supplier
Page: 119