Yokogawa digitalYEWFLO (DY) - Manual (Page 103)

IM 1F2B4-01-YIA
Page 98
TROUBLESHOOTING
6.5 F LOWCHARTS
6.5.1 No flowmeter output under flowing conditions
Yes
No
END
Reset TLA (H02) to '0'
Yes
Yes
No
Are analog/pulse jumpers set
correctly and in agreement with
output type parameter B02?
Apply correct power
No
No
Yes
No
Yes
Output? END
If remote, is remote
signal cable (YF011)
correctly connected?
END
END
Confirm that B parameters agree
with process conditions, fluid type,
meter size, etc. Correct as required.
Flow may be below Qmin,
check process conditions
& recheck sizing. Correct "B"
parameters as necessary.
Reset TLA (H02) to '0'.
No
No
Yes
Yes
Check TP2 and
COM2, is flowing
waveform present?
A
Is power supplied? Are
voltage and polarity
correct?
Is vortex sensor
correctly connected?
Correct connections
Set TLA(H02) to
-1, Output?
Correct jumbers and/or
parameter