Dc Ma Test; Resistance Test - Fluke 77 Series III Service Manual

77 Series III
Service Manual
Step
1
Decades of 1:
2
3
4
5
6
7
Decades of 1.9:
2
3
4
5
6
7
Decades of 2.7:
2
3
4
5
6
7

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.
3-10
Table 3-4. Resistance Test
Input Resistance
short
100
1k
10 k
100 k
1 M
10 M
190
1.9 k
19 k
190 k
1.9 M
19 M
270
2.7 k
27 k
270 k
2.7 M
27 M
Display Reading
0.0 to 0.3
99.2 to 100.8 (plus 0 reading)
994 to 1006
9.94 to 10.06 k
99.4 to 100.6 k
.994 to 1.006 M
9.79 to 10.21 M
188.7 to 191.3 (plus 0 reading)
1889 to 1911
18.89 to 19.11 k
188.9 to 191.1 k
1.889 to 1.9111 M
18.61 to 19.39 M
268.3 to 271.7 (plus 0 reading)
2685 to 2715
26.85 to 27.15 k
268.5 to 271.5 k
2.685 to 2.715 M
26.45 to 27.55 M