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Procedure
● Trim at 4 mA:
Use the menu command "DAC trim" to instruct the device to put out 4 mA. You read the
measured value at an ammeter and enter this value. The device uses this value for offset
correction of the current.
● Trim at 20 mA:
Use the menu command "DAC trim" to instruct the device to put out 20 mA. You read the
measured value at an ammeter and enter this value. The device uses this value for gradient
correction of the current. The value for 4 mA is not affected by this.
Note
If a multimeter is used, it must always be sufficiently accurate.
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0HDVXUHG
FXUUHQW,
5DWHGFXUUHQW,
9DULDWLRQLQULVH
3DUDOOHOVKLIW
A
Original characteristic
B
Characteristic curve after DAC trim 4 mA
C
Characteristic curve after DAC trim 20 mA
Parameter assignment
9.3 Parameter assignment over remote operation
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
153
Содержание SITRANS P
Страница 10: ...Table of contents SITRANS P320 P420 with 4 to 20 mA HART 10 Operating Instructions 11 2019 A5E44852162 AC ...
Страница 272: ...Abbreviations SITRANS P320 P420 with 4 to 20 mA HART 272 Operating Instructions 11 2019 A5E44852162 AC ...
Страница 280: ...Index SITRANS P320 P420 with 4 to 20 mA HART 280 Operating Instructions 11 2019 A5E44852162 AC ...