Operator`s manual

143 Signametrics
6.4 Resistance Test, 4-wire
The following procedure may be used to verify the accuracy of the 4-wire function.
ure
is test.
3. Select the 4WΩ function on the DMM, Autorange. Set the calibrator to 0 Ω. Be certain that the calibrator is set
4. Apply the following Resistance values to the s. Check to see that the displayed reading on
e DMM is within the indicated range.
Table 9-4 Resi re
p Range ut Reading M eading
1. If you have not done so, install the SM2060/64 DMM and place the covers back on to the computer. Ens
that the computer has been on for at least one-half hour, with the covers on, before conducting th
2. Connect the DMM V,Ω + & - terminals to the calibrator HI & LO Output. Connect the DMM’s I, 4WΩ + & -
terminals to the HI & LO Sense terminals.
to external sense ("EX SNS" on the Fluke 5700A or “4-Wire Comp” on the 5520A). Allow the DMM to settle for
a few seconds, and perform the Relative function.
V, Ω + & - terminal
th
stance Test, 4-wi
Ste Inp Minimum aximum R
1
24.000000 Ω 00000 Ω 00.000000 Ω 00.001000 Ω 00.0
2
24.000000 Ω 0000 Ω 09.98200 Ω 10.001800 Ω 10.00
3
Ω 0000 Ω 000.00000 Ω 000.00500 Ω
240.00000 000.0
4
240.00000 Ω 000 Ω 099.98800 Ω 100.01200 Ω
100.00
5
2.4000000 kΩ Ω 0.0000000 kΩ 000.00003 kΩ
0.0000000 k
6
Ω 1.0000000 kΩ 0.9999070 kΩ 1.0000930 kΩ
2.4000000 k
7
000 kΩ Ω 00.000000 kΩ 00.000350 kΩ
24.000 00.000000 k
8
24.000000 kΩ 0000 kΩ 09.999050 kΩ 10.000950 kΩ 10.00
9
240.00000 kΩ 0000 kΩ 000.00000 kΩ 000.00500 kΩ 000.0
10
240.00000 kΩ 0000 kΩ 099.98800 kΩ 100.01200 kΩ 100.0
11
2.4000000 MΩ 000 MΩ 0.0000000 MΩ 0.0000700 MΩ 0.0000
12
000 MΩ 000 MΩ 0.9995300 MΩ 1.0004700 MΩ
2.4000 1.0000
13
24.0000 MΩ 00 MΩ 00.0000 Ω 00.0006 Ω 00.00 M M
14
0 MΩ 00 MΩ 00.0998 Ω 10.0206 Ω
24.000 10.00 M M
Note 1: S ges apply t only. Please ter 2.0 (Specificatio
ended.
ome ran o 2064 refer to chap n).
Note 2: The use of 4-wire Ohms for resistance values above 300 kΩ is not recomm