Alternate Current Verification - Tektronix DMM4020 Technical Reference Manual

Alternate Current Verification

To verify the Amps AC function of the Meter, connect it to the test equipment as shown
in either Figure 3-4 or Figure 3-5 depending on current level and apply the current levels
listed in Table 3-7.
Nominal Input
Ampl. Freq.
1 mA 45 Hz
19 mA 20 Hz
19 mA 45 Hz
19 mA 2 kHz
10 mA 45 Hz
190 mA 20 Hz
190 mA 45 Hz
190 mA 2 kHz
0.1 A 45 Hz
1.9 A 20 Hz
1.9 A 45 Hz
1.9 A 2 kHz
0.5 A 45 Hz
10 A 40 Hz
10 A 45 A
10 A 1 kHz
Table 3-7. Alternating Current Verification Steps
90-Day Test Limit
Range
High
20 mA 1.0125 mA
20 mA 19.2000 mA
20 mA 19.058 mA
20 mA 19.0575 mA
200 mA 10.125 mA
200 mA 191.620 mA
200 mA 190.575 mA
200 mA 190.575 mA
2 A 0.10125 A
2 A 1.92000 A
2 A 1.90575 A
2 A 1.90575 A
10 A 0.5118 A
10 A 10.1100 A
10 A 10.0450 A
10 A 10.0450 A
Performance Verification and Calibration

Alternate Current Verification

1-Year Test Limit
Low High
0.9875 mA 1.0150 mA
18.8000 mA 19.2495 mA
18.943 mA 19.0690 mA
18.9425 mA 19.0690 mA
9.875 mA 10.150 mA
188.380 mA 192.020 mA
189.425 mA 190.690 mA
189.425 mA 190.690 mA
0.09875 A 0.10150 A
1.88000 A 1.92495 A
1.89425 A 1.90690 A
1.89425 A 1.90690 A
0.4883 A 0.5145 A
9.8900 A 10.1370 A
9.9550 A 10.0620 A
9.9550 A 10.0620 A
3
Low
0.9850 mA
18.7505 mA
18.9310 mA
18.9310 mA
9.850 mA
187.980 mA
189.310 mA
189.310 mA
0.09850 A
1.87505 A
1.89310 A
1.89310 A
04855 A
9.8630 A
9.9380 A
9.9380 A
3-11