TB 9-6625-140-24
Table 5. DC Current Accuracy
Test Instrument
Limits
Calibrator Output
RANGE
(DC Amps)
(DC Amps)
(DC Amps)
Min
Max
180 μ
200 μ
179.36 μ
180.64 μ
1800 μ
1793.6 μ
1806.4 μ
2000
18 m
20 m
17.396 m
18.064 m
180 m
200 m
179.36 m
180.64 m
1
1.8
2
1.7855
1.8145
2
9
10
8.922
9.078
1
Move test lead from TI mATEMP terminal to TI A terminal.
2
Connect TI to the Meter Calibrator Amplifier CURRENT OUTPUT terminals, observing polarity.
b. Adjustments. No adjustment can be made.
11. AC Current
a. Performance Check
(1) Connect TI mA/μA input and COM to calibrator.
(μA AC/DC) and RANGE to 200μA. Press the
(2) Set TI function switch to
AC/DC button to select AC.
(3) Set calibrator output for 180 μA at a frequency of 60 Hz. TI will indicate within
limits specified for the 200 A range in table 6.
(4) Repeat technique of (3) above, for the 2000 A range in table 6.
mA
(mA AC/DC) and RANGE to 20 mA. Set
(5) Set TI function switch to
calibrator output for 18 mA at a frequency of 60 Hz. TI will indicate within limits specified
for the 20 mA range in table 6.
(6) Set the RANGE to 200.0 mA. Repeat technique of (5) above.
(7) Set calibrator output to minimum. Move the connection from the μmATEMP to
the A connector.
Table 6. AC Current Accuracy
Test Instrument
Calibrator Output
Limits
RANGE
(AC Amps @ 60 Hz)
(DC Amps)
(DC Amps)
Min
Max
180 μ
200 μ
178.55 μ
181.45 μ
1800 μ
1785.5 μ
1814.5 μ
2000
18 m
20 m
17.855 m
18.145 m
180 m
200 m
178.55 m
181.45 m
1
1.8
2
1.7720
1.8280
10 2
9
8.855
9.145
1
Move test lead from TI A TEMP terminal to TI A terminal.
2
Connect TI to the Meter Calibrator Amplifier CURRENT OUTPUT terminals, observing polarity.
