TB 9-6625-2267-24
9. Resistance
a. Performance Check
(1) Connect calibrator OUTPUT HI and SENSE HI to TI INPUT V- .
(2) Connect calibrator OUTPUT LO and SENSE LO to TI INPUT LO.
and RANGE AUTO pushbuttons.
(3) Press TI FUNCTION k
(4) Set calibrator for a 0 output, EX SNS on and 2 wire Comp on. If TI does not
indicate between 00.00 and 00.03, perform b below.
(5) Set calibrator output for settings listed in table 4. 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 below.
Table 4. Resistance
Calibrator
Control display Error
indications
(%)
1
Output settings
0.13
100
0.11
1
k
0.06
10
k
0.06
100
k
0.06
1
M
0.21
10
M
Set calibrator EX SNS off and 2 wire Comp off above 10 k .
1
b. Adjustments
pushbutton.
(1) Press TI RANGE 2000k
(2) Set calibrator EX SNS off, 2 wire Comp off and output to 1 M . Adjust R21
(fig. 1) until TI indication is within 1 digit of calibrator output display indication rounded
to TI digits of resolution. (R)
(3) Press TI RANGE 2 pushbutton.
(4) Set calibrator for a 1 k output, EX SNS on and 2 wire Comp on. Adjust R27
(fig. 1) until TI indication is within 1 digit of calibrator output display indication rounded
to TI digits of resolution. (R)
pushbutton.
(5) Press TI RANGE 20M
(6) Set calibrator EX SNS off, 2 wire Comp off and output to 10 M . Adjust R29
(fig. 1) until TI indication is within 1 digit of calibrator output display indication rounded
to TI digits of resolution. (R)