Yokogawa RotaMASS 3-Series - Manual (Page 185)

8. SElF-dIAgNOSTIC ANd TrOUBlESHOOTINg
8-9
IM 01R04B04-00E-E 8th edition March 01, 2011 -00 All Rights Reserved. Copyright © 2003, Rota Yokogawa
8.7.6 disagreement of indication with actual density
no
yes
yes
no
no
yes
no
yes
no
yes
yes
no
yes
no
Set correct density
parameters.
Change piping . Vertical
installation is
recommended.
Check installation.
Connect remote cable
according chapter 9
and 4.8.4.
Make troubleshooting
according chapter 8.7.7.
Set Density fix val sel =
Inhibit.
Is temperature
measurement correct ?
For Remote type: Is
remote cable connected
according chapter 9 and
4.8.4 ?
Let YOKOGAWA perform
a new density and mass
flow calibration.
Has corrosion or errosion
occured (too high
density reading)?
Contact the nearest
YOKOGAWA office or
service center.
Is fixed density selected
(Density fix val sel =
Enable ) ?
Is the tube filled with liquid
completely and without
bubbles (density low
reading)?
Is there sediment or
clogging in the tubes ? Clean the tubes by means
like water, steam or other
solvent.
Are density unit, URV,
LRV and lowcut set
correctly ?
F86.EPS