TB 9-6625-1965-24
Table 7. Resistance
Test instrument
Calibrator
err
RANGE
display indication
(%)
pushbutton settings
Nominal output
0.303
200
190.0
0.303
2k
1.900 k
0.303
20 k
19.00 k
0.303
200 k
190
k
0.303
2000 k
1900
k
b. Adjustments
(1) Set calibrator for 190 k . Adjust R12 KOHM (fig. 1) until TI indicates actual
resistance of calibrator (R).
(2) Set calibrator for 1.9 k . Adjust R1 (fig. 2) until TI indicates actual resistance of
calibrator (R).
13. Milliampere-second (Model 8000A/MAS Option Only)
a. Performance Check
(1) Position controls as listed in (a) through (c) below:
(a) Press FUNCTION DC MA pushbutton.
(b) Press RANGE 200 pushbutton.
(c) READ mASEC-ERASE to ERASE.
(2) Using cables of equal length connect calibrator output to TI MA and COMMON
inputs and to frequency counter A input.
(3) Set TI mASEC mA switch to mA.
(4) Set calibrator for an initial 100 mA output and rotate calibrator knob below
EDIT FIELD pushbutton to adjust calibrator for a TI indication of 100 mA.
(5) Set calibrator to STANDBY.
(6) Position frequency counter controls as listed in (a) through (i) below:
FUNCTION to TIME A-B.
(a)
(positive).
INPUT A slope to
(b)
INPUT B slope to
(negative).
(c)
INPUT A 1X/10X to 1X.
(d)
INPUT B to COM A.
(e)
INPUT A AC/DC to DC.
(f)
INPUT A 50 /1M to 50 .
(g)
INPUT B 50 /1M to 50 .
(h)
MEASUREMENT TIME to 80 ns.
(i)
(7) Set calibrator to OPERATE and adjust frequency counter TRIGGER LEVEL
SET A to start count (approximately 2.5 V).