Fluke 867B - Amps Tests

867B,863
Service Manual
4-16
Amps Tests 4-14.
Warning
Risk of electric shock. Do not remove connections at the GMM
until all DC and AC Amps tests have been performed. Always
place the 5700A in Standby prior to swapping ‘Input Source’
connections between the 5700A and the 5725A.
Note that inputs to the GMM are provided from the ‘Input Source’ called for in Tables 4-
14, 4-15, and 4-16. When ‘5725A’ is the input source, _ must be pressed on the
5700A. Rotate the GMM selector to Milliamps and Microamps (
). Connect the
GMM, and 5700A as shown in Configuration 3 (Figure 4-8.)
If necessary, press x on the GMM to select ‘DC’and w to select µA- 100e.
Complete the step 1 in Table 4-14 (DC Amps). Press wagain to select mA-1e, then
complete step 2.
Next, press x to select ‘AC’, and, if necessary, press v to select ‘rms’. Press
wcto select µA-100e and complete step 1 in Table 4-15 (AC Amps RMS). Press
wcto select mA-1e and complete step 2.
Press v to select ‘Average’, and wcto select µA-100e. Complete steps 1 and 2 in
Table 4-16 (AC Amps Average).
Rotate the GMM selector to Amps (
è). Connect the GMM, 5700A, and 5725A in
Configuration 4 (Figure 4-9.)
If necessary, press x on the GMM to select ‘DC’. Then complete step 3 called for in
Table 4-14 (DC Amps).
Next, press x to select ‘AC’, and, if necessary, press v to select ‘rms’. Complete
steps 3 and 4 called for in Table 4-15 (AC Amps RMS).
Finally, press v to select ‘Average’, and complete step v in Table 4-16 (AC
Amps Average).
Table 4-14. DC Amps Performance Test
Step GMM Range Input Input Source Lower Limit Upper Limit
1 300.00 µA
(863 na)
30.00 µA 5700A 29.82 30.18
2 30.000 mA 21.000 mA 5700A 20.975* 21.026*
3 3.0000A 2.9000A 5725A 2.8927 2.9073
* For 863, limits are 20.964 and 21.036.
Table 4-15. AC Amps RMS Performance Test
Step GMM Range Input Input Source Lower Limit Upper Limit
1 300.00 µA
(863 na)
30.00 µA, 10 kHz 5700A 29.20 30.80
2 30.000 mA 21.000 mA, 10 kHz 5700A 20.560 21.440
3 3.0000A 2.9000A, 3 kHz * 5725A 2.8773 2.9228
4 10.000A 1.00A, 3 kHz 5725A 0.983 1.018
* Use 2.90A, 1 kHz with the Fluke 5500A.