Yokogawa ADMAG AXF Instrukcja Użytkownika Pobierz pdf (Strona 67)

IM 1E10C1-E

7-17

7. OPERATION VIA HART COMMUNICATOR

(6) Trim Analog Output

Fine output adjustment is carried out with “D/A trim” or “Scaled D/A trim”.

• D/A Trim

“D/A trim” is to be carried out if the calibration digital ammeter does not read 4.000

mA and 20.000 mA exactly with the output signal of 0% and 100%.

• Scaled D/A Trim

“Scaled D/A trim” is to be carried out if the output is adjusted using a voltmeter or

other types of meters with 0% to 100% scale.

1. Device setup 2. Diag/Service 1. Test device 4. Output trim

ADMAG SE :

Output trim

1 D/A trim

2 Scaled D/A trim

HELP SAVE HOME ENTER

Select “D/A trim”.

Press OK (F4).

Connect the ammeter (±1µA is measurable.), and press OK

(F4).

Press OK (F4), and the ADMAG SE outputs the output signal

of 0%.

Ammeter reading: 4.115

Enter the read value “4.115” of the ammeter, and press

ENTER (F4).

(The output of the ADMAG SE changes.)

ADMAG SE :

Connect reference

meter

HELP SEND ABORT OK

Call up “Output trim” display.

ADMAG SE :

WARN-Loop should be

removed from

automatic control

DEL DEL ABORT OK

ADMAG SE :

Setting fld dev

output to 4mA

DEL DEL ABORT OK

(ENTER)

‘4.115’

ADMAG SE :

Enter meter value

4.0000

HELP DEL ABORT ENTER

(OK)

Example 1: For the adjustment using an ammeter (±1uA is measurable.)

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 106 107

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