Azbil MagneW Plus+ MGG14C, Руководство пользователя

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4-3
Zero adjustment
Getting started
Make sure to perform zero adjustment after starting up the device. There are three ways to
do so.
ȲUsing the device’s LUI
ȲUsing the parameter list by communicating with the device
ȲUsing the menu by communicating with the device
Adjust the measured instantaneous flow rate value to zero when the fluid inside the
flowtube is sitting still.
Note:
ȲZero adjustment is extremely important for ensuring accurate measurement of flow
rate. Make sure to perform this adjustment when you first operate the device.
ȲBefore performing zero adjustment, make sure that Class D grounding is reliably
performed with the flowtube and that the flowtube is filled with a measurement fluid
which is sitting still.
Zero adjustment is possible when the flow velocity falls below 0.2 m/s. Wait until the
fluid comes to a complete rest (a flow velocity of 0.0 m/s) to avoid output errors.
Ȳ Zero adjustment requires O/S to be selected for the Actual MODE in Flow Transducer
Block. Configure the setting from the host system in advance.
Step Procedure Screen
1
Touch the MODE key for 3 seconds or longer.
Note: The screen as shown on the right is displayed only
for 8 seconds. Perform the following operations within 8
seconds. Touch the key four times.
m
3
/h
2
Touch the key to move the cursor underneath YES and
touch the key.
m
3
/h
m
3
/h
is displayed before the screen
switches to the one shown on the
right in 2 seconds.
3
Touch the key once to display the screen as shown on
the right.
m
3
/h
4
Touch the key once to move the cursor underneath
READY.
m
3
/h
5
Touch the key to start zero adjustment. During the
adjustment, the value of 0.0 blinks for displaying the large
7-segment flow rate. Once the adjustment is complete,
the value stops blinking and the screen returns from ON
to READY.
This period is about 30 seconds.
m 3 /h
6
At the very end, make sure to touch the MODE key to
complete the adjustment.