TB 9-6625-2023-35
Test instrument
Calibrator
Control
display Error
RANGE
HIGH RESOLN
Output
indications
(%)
settings
settings
settings
100 Ω
.1
off
0.411
1 kΩ
1
off
0.046
1 kΩ
1
on
0.0446
10 kΩ
10
on
0.0111
10 kΩ
10
off
0.013
100 kΩ1
100
off
0.0074
100 kΩ
100
on
0.0051
1 MΩ
1k
on
0.0146
1 MΩ
1k
off
0.019
10 MΩ
10 k
off
0.105
10 MΩ
10 k
on
0.1006
calibrator 2 wire Comp off before setting output to 100 kΩ.
1Set
b. Adjustments
NOTE
The following adjustments are accessible through holes in
rear panel of TI. Adjustment designators are marked on
panel.
(1) Press RANGE 1 key to on.
(2) Set calibrator for a 1 kΩ output.
(3) Adjust 1kΩ until TI indication is equal to calibrator output display indication
rounded to TI digits of resolution (R).
(4) Press RANGE 100 key to on.
(5) Set calibrator for a 100 kΩ output.
(6) Adjust 1MΩ until TI indication is within 1 count of calibrator output display
indication rounded to TI digits of resolution (R).
(7) Repeat (1) through (6) above to obtain optimum adjustment.
10. Ac Voltage
a. Performance Check
(1) Connect calibrator OUTPUT HI and LO to TI INPUT (2 WIRE) HI and LO.
(2) Set controls as listed in (a) through (g) below:
(a) FUNCTION ~V key to on.
(b) RANGE 1 key to on.
(c) TRIGGER INTERNAL key to on.
