MIL-DTL-25516F
A
Ammeter
0-1 Amp
R2 Variable
0-100 mil ohms
resistor
0-15 Ohms
Mv
0-100 mV
R1 Variable
resistor
Millivoltmeter
SW Switch
Less than .01 ohms
Power supply
10 volts DC at 1
Contact resistance
amp.
a. With test leads open, close switch SW.
b. Adjust R2 for a millivoltmeter reading of 50 mV.
c. Connect test leads across the test sample and see that the mV drops significantly before opening
switch SW required in (d). A drop in mV will indicate satisfactory dry circuit continuity.
d. Open SW and then adjust R1 for a circuit current A of one ampere.
e. Measure the millivolt drop mV across the test sample and call this ET.
FIGURE 5. Resistance measurement (voltage drop).
26
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business