Still Water Zero Adjustment - Toshiba LF620 Instruction Manual

Switch operation
STEP4(=END)
Note: The measured value sent from the converter through communications is the value

8.2.14 Still Water Zero Adjustment

Zero adjustment is performed with the fluid held still in the detector's measurement pipe.
Switch operation
STEP1
STEP2
Longer
STEP3
O K
STEP4(=END)
Note 1: To start still water zero adjustment, push and hold
Note 2: Still water zero adjustment is possible only when the flow rate value is within the range of
±1.25 m/s.
Note 3: If you want to cancel the adjustment when ADJ READY is displayed, push
returns you to the state showing the flow rate measurement value on the screen.
Display example
DSPL SET
LOW CUT
SET OK?
ESC
O K
processed with display low cutoff.
Display example
F:ZERO
1 ZERO ADJ
2 MANUAL
3 EXIT
ESC
ZERO ADJ
1.2
%
ESC
ADJ READY
1.2
%
O K
NOW ZERO
ADJUSTING
ZERO ADJ
0.0
%
ESC
When you push
to confirm whether the setting is OK or not.
If OK, push
setting, push
Pushing
ESC
and exits the setting screen.
N O
Select "ZERO ADJ" from the
configuration item selection menu.
The current flow rate measurement value
appears.
Then push and hold
* Pushing
ESC
menu.
The title display changes to ADJ READY,
and the converter is ready for zero
adjustment.
* Pushing
N O
screen.
N O
Pushing
O K
Zero adjustment ends in several seconds and
the flow rate measured value appears.
Pushing
ESC
menu.
− 77 −
6 F 8 A 0 9 2 7
Description
, a message appears
. If you want to redo the
O K
.
N O
cancels the setting operation
Description
longer.
returns you to the setting
returns you to the previous
starts zero adjustment.
returns you to the setting
longer.
N O
. This