Tektronix DMM4020, Техническое справочное руководство

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DMM4020
Technical Reference
4-Wire Ohms Verification
To verify the 4-Wire Ohms function of the Meter, connect it to the test equipment as
shown in Figure 3-2 and apply the resistances listed in Table 3-4.
gdb003.eps
Figure 3-2. 4-Wire Ohms Test Setup
Table 3-4. 4-Wire Ohms Verification Steps
Nominal
Input
Range
90-Day Test Limit 1-Year Test Limit
High Low High Low
0
Ω
200
Ω
0.008
Ω
-0.008
Ω
0.008
Ω
-0.008
Ω
190
Ω
200
Ω
STD+0.046
Ω
[1]
STD-0.046
Ω
[1]
STD+0.065
Ω
[1]
STD-0.065
Ω
[1]
0 k
Ω
2 k
Ω
0.00004 k
Ω
-0.00004 k
Ω
0.00006 k
Ω
-0.00006 k
Ω
1.9 k
Ω
2 k
Ω
STD+0.00033 k
Ω [1]
STD-0.00033 k
Ω [1]
STD+0.00044 k
Ω [1]
STD-0.00044 k
Ω [1]
0 k
Ω
20 k
Ω
0.0004 k
Ω
-0.0004 k
Ω
0.0006 k
Ω
-0.0006 k
Ω
19 k
Ω
20 k
Ω
STD+0.0033 k
Ω [1]
STD-0.0033 k
Ω [1]
STD+0.0044 k
Ω [1]
STD-0.0044 k
Ω [1]
[1] 5700 r resistance
3-6