KROHNE UFM 600T EN - Manual (Page 49)

C.7 Trouble Shooting
1 The flowmeter does not respond after connection to
the main power supply (no display or output messages).
- Check fuse.
2 The error marker * appears on the display
- Leave the measuring mode and enter the Quit/Reset
menu
(press ; see section C.5).
Cure the cause if necessary, and select
ERR.ACQUIT to reset the error marker.
3 Low signal marker: 3 or 4 markers on.
Cause Solution
Incorrect transducer Reposition transducers (see sec-
tion position C.1.3) using sufficient
coupling grease and check the
transducer distance afterwards.
Poor sonic coupling Check the pipe wall surface;
between pipewall and remove any rust, dirt and/or thick
transducer surface layers of paint or coating.
Apply sufficient grease on the
transducers and make sure not to
wipe off any grease from the trans-
ducers while they are being rein-
stalled.
Pipe is not completely Fill the pipe completely or select a
filled pipe section that is always com-
pletely filled with liquid.
Broken signal cable Use a multimeter to check the
condition of the cables and the
connectors. See your supplier for
46
ALTOSONIC
Operation
UFM 600 T