Adjustment Procedure (Manual procedure)
Model no.
GDM
–825XA
Document No.
TO
– XX -XXX
Page 1 of
NO.
Item
Condition
Precaution:
1) Precautions before adjustment:
A. Warm up the device for 60 minutes before adjustment.
B. Retain an ambient temperature of 23°C± 2°C, with a relative humidity below 75%.
2) Equipment required:
A. Fluke 5720A+ Fluke 5725A( same level or above)
B. Calibration Key(GDM-01)
Step 1
Manual ADJ MODE
1. Power off.
2. Press and hold
“2ND”
＋
POWER ON.
3. CAL 01 is displayed on the right upper corner. Hexadecimal
encoding value is displayed on the left.
4. Release
“2ND” to enter manual ADJ MODE
Step 2
ADJ unlock
1. Insert the Calibration Key (GDM-01) into the CAL Key Port on the
rear panel of the GDM-825XA.
Step 3
ADJ and SAVE
1. Push the Up and Down buttons (
) to select the CAL
CODE.
2. Select a CAL CODE and input the corresponding function signal
(adjustment item). Please refer to Appendix 1 for the CAL CODE
and the corresponding function signal.
3. After inputting the function signal, users need to wait for the Fluke
5720A output signal to be stable. i.e.
“u” disappears on the Fluke
5720A. At that time, users can press the AUTO button (
)
on the GDM-825XA panel to save.
4. When the save is in process, the
“
＊
” will stop flashing. Users
can
’t proceed to the next step until the “
＊
” begins to flash.
CAL Key
RS232C
