Yokogawa ADMAG AXF - Manual (Page 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
1
2
Select “D/A trim”.
Press OK (F4).
Connect the ammeter (
±
1
µ
A 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
3
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
4
F4
5
(ENTER)
‘4.115’
ADMAG SE :
Enter meter value
4.0000
HELP DEL ABORT ENTER
F4
(OK)
F4
(OK)
F4
(OK)
Example 1: For the adjustment using an ammeter (
±
1uA is measurable.)