8. OPERATION VIA HART COMMUNICATOR
Example 2: For adjustments using a voltmeter
1
AXFA11 :
1 Auto Zero Exe
2 Magflow Zero
3 D/A trim
4Scaled D/A trim
HELP SAVE HOME
JKL
4
Select the “Scaled D/A trim”.
2
AXFA11 :
ABORT OK
F4
(OK)
Press OK (F4).
3AXFA11 :
1 Proceed
2 Change
ABORT ENTER
4AXFA11 :
Set scale- Lo output value
4.000000
4.000000
DEL ABORT ENTER
5AXFA11 :
Set scale- Hi output value
20.000000
20.000000
DEL ABORT ENTER
6AXFA11 :
1 Proceed
2 Change
ABORT ENTER
VWX | Select “Change”. |
2The same operations as for “D/A trim” are required when selecting “Proceed”.
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| ‘1’ | Enter the reading value on the meter when the signal is 4 mA. | |||
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| F4 |
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| In this case, enter the value of the voltage across a 250 Ω | |
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| resistor (1 V), and press ENTER (F4). |
(ENTER) |
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| ‘5’ | Enter the reading value on the meter when the signal is 20 mA. | |||
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| F4 |
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| Then, enter “5” (5 V), and press ENTER (F4). | |
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(ENTER) |
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STU | or | F4 |
| Select “Proceed” and press ENTER (F4). | ||
1 |
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| (ENTER) |
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7
8
AXFA11 :
ABORT OK
AXFA11 :
ABORT OK
F4
(OK)
F4
(OK)
Connect the voltmeter, and press OK (F4).
Press OK (F4). The output signal of 0% is output.
IM |