Dc ma test – Fluke 77 User Manual
Page 35
77 Series III
Service Manual
3-10
Table 3-4. Resistance Test
Step
Input Resistance
Display Reading
1
short
0.0 to 0.3
Ω
Decades of 1:
2
100
Ω
99.2 to 100.8
Ω
(plus 0 reading)
3
1k
Ω
994 to 1006
Ω
4
10 k
Ω
9.94 to 10.06 k
Ω
5
100 k
Ω
99.4 to 100.6 k
Ω
6
1 M
Ω
.994 to 1.006 M
Ω
7
10 M
Ω
9.79 to 10.21 M
Ω
Decades of 1.9:
2
190
Ω
188.7 to 191.3
Ω
(plus 0 reading)
3
1.9 k
Ω
1889 to 1911
Ω
4
19 k
Ω
18.89 to 19.11 k
Ω
5
190 k
Ω
188.9 to 191.1 k
Ω
6
1.9 M
Ω
1.889 to 1.9111 M
Ω
7
19 M
Ω
18.61 to 19.39 M
Ω
Decades of 2.7:
2
270
Ω
268.3 to 271.7
Ω
(plus 0 reading)
3
2.7 k
Ω
2685 to 2715
Ω
4
27 k
Ω
26.85 to 27.15 k
Ω
5
270 k
Ω
268.5 to 271.5 k
Ω
6
2.7 M
Ω
2.685 to 2.715 M
Ω
7
27 M
Ω
26.45 to 27.55 M
Ω
3-11. DC mA Test
1.
Set the output of the DC Current Calibrator to zero, and connect it to
the 300mA and COM input terminals of the UUT.
2.
Set the DC Current Calibrator to the output shown in Table 3-5, and
verify that the UUT display reading is within the limits shown.