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5-10
Section V – Maintenance and Servicing
45.
Repeat steps 38 through 44 for each remaining value listed in the Range and Applied columns of
Table 5.2.
Range (VDC) Applied (ADC)
Limits (ADC)
3 m
±0.3
±0.2940 to 0.3060
1 m *
±100 m
±98.00 to 102.00 m
300
μ
±30 m
±29.40 to 30.60 m
100
μ
±10 m
±9.80 to 10.20 m
30
μ
±3 m
±2.940 to 3.060 m
10
μ
±1 m
±0.980 to 1.020 m
3
μ
±0.3 m
±0.2940 to 0.3060 m
1
μ
±100
μ
±98.0 to 102.0
μ
*
Set TI IMPEDANCE to 1 M
Ω
using the INPUT/M
Ω
button.
Table 5.2
Isolated Output Calibration
1.
Connect the Digital Multimeter INPUT HI and LO terminals to AVM-2000 rear panel + and -
terminals, respectively.
2.
Set the Digital Multimeter FUNCTION for DCV and AUTO range.
3.
Using AVM-2000 RANGE knob, select the 1 mV range.
4.
Perform Manual Range Zero of the AVM-2000 except set the Meter Calibrator for 0 mA DC and
leave the Meter Calibrator in OPR.
5.
Edit the Meter Calibrator output amplitude until the Digital Multimeter indicates 0.000 ±0.003 VDC.
6.
Press the Meter Calibrator OFFSET button.
7.
Set the Meter Calibrator for 100 mA DC.
8.
Adjust AVM-2000 OUTPUT LEVEL knob until the Digital Multimeter indicates 1.500 ±0.003 VDC.
9.
Press the Meter Calibrator SCALE button.
10.
Set the Meter Calibrator for 80 mA DC and edit the output amplitude until the Digital Multimeter
indicates 1.200 ±0.003 VDC.
11.
The LinError indicated on the Meter Calibrator display must be within -0.5000 to +0.5000%.
12.
Repeat steps 10 and 11 with 60 mA DC and 0.9 VDC, 40 mA DC and 0.6 VDC, 20 mA DC and 0.3
VDC.
13.
Press the Meter Calibrator SCALE button (setting the function off).
14.
Repeat steps 7 through 12 with negative applied current and Digital Multimeter indications.
15.
Set the Meter Calibrator OPR/STBY switch to STBY and press the SCALE and OFFSET buttons
(setting the functions off).
