Operation using HART communicator Azbil Corporation
7-28 Model MTG11A/18A, MTG11B/18B, MTG14C
Manual Zero
This function is used to improve flow measurement more accurately when the flow rate becomes
25% or less of setting range. The MTG Flowmeter has three manual zeroing functions for each
excitation current. To execute the manual zero, proceed as follows.
1. From online menu,
Select:
1. Device setup
2. Diag/Service
3. Calibration
3. Manual zero
Figure 7-49 is then displayed.
Figure 7-49
2. Once the display as shown Figure 7-49 appears, move the arrow key up or
down to select a manual zero to be adjusted.
3. Select the manual zero, then the screen
as shown in Figure 7-50 appears.
Figure 7-50
4. To continue the manual zero, press OK. Then the screen as shown in Figure 7-
51 appears. Press OK to continue. The notice as shown in Figure 7-52
appears.
Figure 7-51 Figure 7-52
5. Once the display as shown Figure 7-53 appears, confirm the value appears on the screen
and select an appropriate command by moving the arrow key up or down. After marking
a selection, press F4 (ENTER). Check the adjustment value by selecting “3 Refresh %”
command. If you finish the manual zero, select “4 Quit(Manual zero end) command and
press F4 (ENTER). Then screen as shown in
Figure 7-54 appears. Press OK and then
return to the Manual zero menu.
CM2-MTG300-2001.book 28 ページ ２０１５年９月２９日 火曜日 午前１０時１４分
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