Katronic Technologies FLUXUS ADM 6725, Operating Instruction

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5 - 14
ADM 6725 E10

KA T
Program Branch MEASURING
+
O
Press this key for information about total
volume quantity for
positive flow direction.
-
O
Press this key for information about total
volume quantity for
negative flow direction.
Note:
•
To show the totalised throughputs for a certain measuring channel , this
channel must be shown on the display.
•
The status indicator
S IG N A L
(red/green) and keypad operations influencing
the measuring mode are linked to the measuring channel, which is currently
shown on the display.
Reset the two flow totalisers to zero :
Press key
O N
O
.
Deactivate flow totalising:
Press key O F F
O
.
5.3.5 Disturbances during Measurement
A question mark on the bottom line at the right hand side of the display will indicate
signal loss. The pipe cannot be sufficiently acoustically penetrated and the received
signal cannot be used for measurement. The last correct reading will remain on the
display:
54.5 m3/h?
A: Volume Flow
M8
E NT E R
O N
O
Return to the bar graph display.
Activates flow totalisers.
Suggested actions to overcome the problem
FIRST:
Wait a little while until the acoustic
contact is established again.
Temporarily, there might be a higher
proportion of gaseous or solid particles
in the flowing medium. SECOND:
Check that there is a film of acoustic coupling
component between the transducers and
pipewall. Renew film if necessary. Start the
sequence to position the transducers again.
Adjust transducers for maximum acoustic
contact.
THIRD:
Change from using the reflection to the
diagonal-path mode. The signal
attenuation might be too high because
of high fluid viscosity or deposits on the
inner pipewall. FOURTH:
Find a more suitable measuring point along
the pipework.
(See chapter 3)