TB 9-6625-140-24
Table 4. AC Voltage Accuracy
Test Instrument
Calibrator
RANGE
Limits
Output
(V ac)
(V ac) @ Hz
Min
Max
1.8 @ 45 Hz
2
1.7825
1.8175
1.8 @ 450 Hz
2
1.7825
1.8175
18 @ 45 Hz
20
17.825
18.175
18 @ 450 Hz
20
17.825
18.175
180 @ 45 Hz
200
178.25
181.75
180 @ 450 Hz
200
178.25
181.75
675 @ 45 Hz
750
665.9
684.1
675 @ 450 Hz
750
665.9
684.1
(5) Set calibrator output to minimum.
b. Adjustments. No adjustment can be made.
10. DC Current
a. Performance Check
(1) Connect TI μmATEMP input and COM to calibrator.
(μA AC/DC) and RANGE to 200 μA.
(2) Set TI function switch to
(3) Set calibrator output for 180.0 A. TI will indicate within limits specified for the
200 A range in table 5.
(4) Set the TI RANGE to 2000.0 A. Set calibrator output for 1800.0 A. TI will
indicate within limits specified for the 2000 A range in table 5.
mA
(5) Set TI function switch to
(mA AC/DC) and RANGE to 20 mA. Set
calibrator output for 18 mA. TI will indicate within limits specified for the 20 mA range in
(6) Set the RANGE to 200.0 mA. Repeat technique of (5) above.
(7) Set calibrator output to minimum. Move the connection from the μm ATEMP to
the A connector.
(8) Set TI function switch to A (A AC/DC) and RANGE to 2 A. Set calibrator
output for 1.8 A. TI will indicate within limits specified for the 2 A range in table 5.
(9) Set calibrator output to minimum. Set the RANGE to 10 A. Connect TI to the
Calibrator Amplifier terminals, observing polarity.
(10) Set calibrator output for 9 A. TI will indicate within limits specified for the 10 A
range in table 5.
(11) Set calibrator output to minimum.