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T .O . 33K8-4-551-1
4 .2 .21 The TI must indicate within the corresponding values listed in the Limits column of Table 6.
4 .2 .22 Repeat steps 4 .2 .20 and 4 .2 .21 for the remaining Range listed in Table 6.
Table 6.
Range (S2)
Limits (S2)
100 M
99 .94875 to 100 .05125 M
1G
0 .0994900 to 0 .1005100 G
4 .2 .23 Disconnect the test setup.
4 .3 DC CURRENT CALIBRATION :
NOTE
The DC Voltage Calibration must be completed prior to beginning the DC Current
Calibration.
4 .3 .1 Select TI Internal Temperature by pressing the TI keys in the following sequence:
(record this value).
4 .3 .2 Select the TI temperature at time of last cal by pressing the TI keys in the following sequence:
T
6HF1
81s)
rm.
V
1
.
This indication, minus the indication in step 4 .3 .1, must be
c
( gig)
(aue)
.
6
0
within ±5 °C.
4 .3 .3 Perform ACAL on the TI by pressing the TI keys in the following sequence:
, use the menu scroll keys
until ACAL ALL is displayed, then
or
3
4
5
8
Enter
4 .3 .4 Set the TI for DCI, 8 digit display and NPLC at 100 by pressing the TI keys in the following sequence:
ccI
(SHIT)
aloe)
N
8
Enter
NPIC
1
0
0
Enter
4 .3 .5 Connect equipment as shown in Figure 2 using the first Resistance Standard (2 .10) listed in Table 7.
4 .3 .6 Multiply the Resistance Standard (2 .10) listed in Table 7, (Resistors 1-10) Certified Resistance times the first
value listed in the Applied column of Table 7, record this value as calculated Digital Voltmeter indication.
4 .3 .7 Manually select the corresponding Range listed in Table 7.
4 .3 .8 Set the Calibrator for the first value listed in the Applied column of Table 7 and set OPR/STBY switch to OPR.
4 .3 .9 Edit the Calibrator controls to obtain the calculated Digital Voltmeter indication (about 1 VDC) recorded in
step 4 .3 .6 .
23
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