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Zero Adjustment
Introduction
Adjust the flowmeter so that the measured instantaneous flow rate will be zero
when the fluid stands still in the detector.
Notes:
• Zero adjustment is very important for accurate flow measurement.
Before operating the unit for the first time, be sure to zero the
flowmeter.
• Before zero adjustment, make sure the detector has proper Class 3
grounding and that the fluid to be measured is charged into the
detector and is standing still. Zero adjustment is possible when the
flow speed is 0.2 m/s or below, but wait until the fluid completely
stops (flow speed: 0.0 m/s) for accurate adjustment. Otherwise,
output errors may result.
ScreenProcedureStep
1
Touch the MODE key for more
than 3 seconds.
Note: The screen at left will be
displayed for 8 seconds.
Complete the following opera-
tions within 8 seconds.
2
Touch the MODE key for more
than one second.
3
Touch the MODE key on the
data setting device for more
than one second to enter the
Operator’s Mode. Touch the
key to open the screen
shown at right.
Note: The figure shows the
screen when the main display is
set at %.
4
Touch the key once.
(Continued on next page)
ENTER IN OP. MODE
YES OR NO
*
OPERATOR'S
MODE
*
AUTO ZERO
READY
*
AUTO ZERO
READY
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