TB 9-6625-2253-24
10. Ac Voltage
a. Performance Check
(1) Set TI to measure AC V and press 200 mV range pushbutton.
(2) Connect TI V/:/S and COMMON to calibrator.
(3) Set calibrator for an output amplitude of 190 mV at an output frequency of
45 Hz. If TI does not indicate within limits specified in first row of table 5, perform
b (1) below.
(4) Repeat technique of (1) through (3) above, using settings and indications listed
Table 5. Ac Voltage Accuracy
Calibrator output
Test instrument
Indication limits
Amplitude
Frequency
Range
Min
Max
190 mV
45 Hz
200 mV
188.4 mV
191.6 mV
190 mV
900 Hz
200 mV
188.4 mV
191.6 mV
190 mV
1.9 kHz
200 mV
186.8 mV
193.2 mV
190 mV
5 kHz
200 mV
180.0 mV
199.9 mV
1.9 V
45 Hz
2V
1.884 V
1.916 V
1.9 V
900 Hz
2V
1.884 V
1.916 V
1.9 V
1.9 kHz
2V
1.868 V
1.932 V
1.9 V1
5 kHz
2V
1.800 V
1.999 V
0.19 V
5 kHz
2V
0.175 V
0.205 V
19
V
45 Hz
20 V
18.84 V
19.16 V
19
V
900 Hz
20 V
18.84 V
19.16 V
19
V
1.9 kHz
20 V
18.68 V
19.32 V
19
V
5 kHz
20 V
18.00 V
19.99 V
190
V
45 Hz
200 V
188.4 V
191.6 V
190
V
900 Hz
200 V
188.4 V
191.6 V
190
V
1.9 kHz
200 V
186.8 V
193.2 V
750
V
45 Hz
750 V
740
V
760
V
750
V
100 Hz
750 V
740
V
760
V
750
V
1 kHz
750 V
740
V
760
V
1If
TI does not indicate within limits specified, perform b (2) below.
b. Adjustments
(1) Set calibrator for an output amplitude of 190 mV at an output frequency of
45 Hz and adjust AC CAL R4 (fig. 1) for a TI indication of 190.0 (R).
(2) Set calibrator for an output amplitude of 1.9 V at an output frequency of 5 kHz
and adjust HF CAL C1 (fig. 1) for a TI indication of 1.900 (R).
11. Resistance/Conductance
a. Performance Check
(1) Set TI to measure resistance and press the 200: range pushbutton.
(2) Set calibrator output to 190.0: nominal (2-wire comp: ON).