TB 9-6625-2335-24
b. Software Adjustments
(1) Press blue shift key then CONFIGURATION C/OFFSET COMP key. TI will
display CAL.
(2) Enter 0,3457 using MATH keys.
(3) Enter calibrator output display indication rounded to TI digits of display ,3457
using MATH keys.
(4) Press ENT key. TI will display CALIBRATING while adjustment routine
is running.
11. Ohms 4-Wire
a. Performance Check
(1) Connect calibrator OUTPUT HI and LO to TI INPUT HI and LO.
(2) Connect calibrator SENSE HI and LO to TI SENSE HI and LO.
(3) Press blue shift key then OHM/OHMF key.
(4) Set calibrator for a 0 output, EX SNS on and 2-wire Comp off.
(5) Press RANGE or key to select ranges listed in table 9. If TI indications are
not within limits specified, perform b (1), (2), and (4) below.
Table 9. Ohms 4-Wire Offset
Test instrument
Indications ( )
Ranges
330
00.00335
3
000.0035
00
3 k
0.000007 k
3 0 k
00.00007 k
3
000.0008
00 k
k
3 M
0.000014 M
00.00083 M
0M
Press TI RANGE or key to select ranges and set calibrator output for
(6)
settings listed in table 10. At each output setting use calibrator output adjustment controls
to set calibrator control display Reading equal to TI indication. If calibrator control
display Error indications are not within limits specified, perform b(1), (3) and (4) below.
Table 10. Ohms 4-Wire
Calibrator
Control display
Test instrument
Error indications
( %)
ranges
Output settings
10
0.041
30
100
0.009
300
1 k
0.0057
3k
10 k
0.0057
30 k
100 k
0.0058
300 k
1 M
0.0079
3M
10 M
0.0483
30 M