Yokogawa digitalYEWFLO (DY) - Manual (Page 104)

TROUBLESHOOTING
IM 1F2B4-01-YIA
Page 99
No flowmeter output under flowing conditions (cont.)
Yes
END
Output? END
Upload parameters to
handheld terminal
Install spare amp
Output? END
OR
Download saved parameters
to new amp
Go to A,
"Check TP2 and COM2"
Reduce minimum density
(B08) value by 20%.
Yes
Yes
No
No
No
Check and reset
Gain = 0 (H03),
Output?
Set noise judge
(H06) to not active,
Output?
Check and correct minimum
density parameter (B08) to
process conditions. Set
noise judge (H06) to active.
Reset minimum density
to original setting
No
Yes
Yes
No
Less than or equal to
10 loops?
Contact Yokogawa Industrial Automation
technical assistance, 800/524-7378