Direct Voltage Verification - Tektronix DMM4020 Technical Reference Manual

DMM4020
Technical Reference

Direct Voltage Verification

To verify the Volts DC function of the Meter, connect it to the calibrator as shown in
Figure 3-1 and apply the voltages listed in Table 3-2.
Nominal
Input
0 V
190 mV
-190 mV
0 V
0.5 V
-0.5 V
1.9 V
-1.9 V
0 V
19 V
-19 V
0 V
190 V
-190 V
0 V
1000 V
-1000 V
3-4
Figure 3-1. Direct and Alternating Voltage Verification Test Setup
Table 3-2. Direct Voltage Verification Steps
90-Day Test Limit
Range
High
200 mV 0.006 mV
200 mV 190.025 mV
200 mV -189.975 mV
2 V 0.00004 V
2 V 0.50009 V
2 V -0.49991 V
2 V 1.90023 V
2 V -1.89977 V
20 V 0.0006 V
20 V 19.0025 V
20 V -18.9975 V
200 V 0.004 V
200 V 190.023 V
200 V -189.977 V
1000 V 0.02 V
1000 V 1000.12 V
1000 V -999.88 V
1-Year Test Limit
Low High
-0.006 mV 0.008 mV
189.975 mV 190.037 mV
-190.025 mV -189.964 mV
-0.00004 V 0.00006 V
0.49991 V 0.50014 V
-0.50009 V -0.49986 V
1.89977 V 1.90034 V
-1.90023 V -1.89966 V
-0.0006 V 0.0008 V
18.9975 V 19.0037 V
-19.0025 V -18.9963 V
-0.004 V 0.006 V
189.977 V 190.034 V
-190.023 V -189.966 V
-0.02 V 0.03 V
999.88 V 1000.18 V
-1000.12 V -999.82 V
gdb001.eps
Low
-0.008 mV
189.964 mV
-190.037 mV
-0.00006 V
0.49986 V
-0.50014 V
1.89966 V
-1.90034 V
-0.0008 V
18.9963 V
19.0037 V
-0.006 V
189.966 V
-190.034 V
-0.03 V
999.82 V
-1000.18 V