TB 9-6625-133-40
Table 13. DC Current Adjustments.
TI
Calibrator
Range (A)
Cal Point
Displayed (A)
True Applied (A)
200 μ
Zero
------
open
200 μ
100 μ
Range Gain +
200 μ
-100 μ
Range Gain -
2m
Zero
------
open
2m
Range Gain +
1m
2m
Range Gain -
-1 m
20 m
Zero
------
open
20 m
Range Gain +
10 m
20 m
Range Gain -
-10 m
200 m
Zero
------
open
200 m
Range Gain +
100 m
200 m
Range Gain -
-100 m
2
Zero
------
open
2
Range Gain +
1
2
Range Gain -
-1
20
Zero
------
open
1
20
Range Gain +
10
20
Range Gain -
-10
Set calibrator OPR/STBY to STBY. Move connection to amplifier and set calibrator OPR/STBY to OPR.
1
(4) Press TI keys as listed in (a) through (c) below.
(a) CLEAR
(b) [PWR UP DFLT]
(c) DCI
(5) Press CAL to enter the CALIBRATION menu.
(6) Press DCI to display ranges in right display.
(7) Set TI to range requiring adjustment. Allow time for TI indication to settle.
(8) Press SAMPLE to initiate the adjustment. Zero point adjustment is complete
when the BUSY legend goes out.
(9) Repeat technique of (7) and (8) above for remaining TI ranges requiring adjustment.
(10) Connect calibrator HI/LO OUTPUT to TI LO/A INPUT.
(11) Set TI to range requiring adjustment (press DCI to display ranges in right
display, if necessary).
(12) Set calibrator output (displayed) to the positive DC current that corresponds to
the range requiring adjustment, output to OPR. Allow time for TI indication to settle.
(13) Press CAL to enter the CALIBRATION menu.
(14) Press [SET] in the CALIBRATION menu.
(15) Enter the true applied positive value of the calibrator output using TI numeric
keypad, then press ENTER.
(16) Press SAMPLE to initiate the adjustment. Adjustment is complete when the
BUSY legend goes out.
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