Operation using HART communicator Azbil Corporation
7-34 Model MTG11A/18A, MTG11B/18B, MTG14C
Excitation current adjustment
To adjust the excitation current adjustment, proceed as follow:
1. From online menu,
Select:
1. Device setup
2. Diag/Service
3. Calibration
6. Ex current trim
Figure 7-67 will then be displayed.
If the control system is not affected by
the forcible change of the current
signal, press F4 (OK). By pressing F3
(ABORT), the procedure is canceled.
Figure 7-67
2. Once the display as shown in Figure 7-
68 appears, move the arrow key up or
down to select an excitation current to
adjust, and then press F4 (ENTER).
This time, select 3.5 mA.
Figure 7-68
3. Figure 7-69 will then appears. Connect
the device to measure excitation
current to the both ends of the
excitation check pin and then press F4
(OK).
Figure 7-69
4. Figure 7-70 will then appear. By
pressing F4 (OK), excitation current
adjustment starts, and the converter
will adjust the excitation current to 3.5
mA. If it is fine, press F4 (OK).
Figure 7-70
CM2-MTG300-2001.book 34 ページ ２０１５年９月２９日 火曜日 午前１０時１４分
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