Click here to make tpub.com your Home Page

Page Title: Test procedure
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 




img
MIL-F-81150A(OS)
Resistor:  220,000 chins plus or minus 1 percent, 0.5 watt;
designation RN70B2203J.
Resistor:  250,000 ohms plus pr mimus 1 percent, 0.5 watt;
designation RN70B2503J.
Ohmmeter:
Hewlett-Packard Model +1OB, or equivalent,
Connectors, test leads, and small tools:
As required,
Voltmeter:  Input impedance 11 megohms, shunted by 7.5 plus or
minus 1 picofards; including test leads.  Accuracy of reading within 3
percent.
4.4,4 Test procedure
4.4.4.1 Connect the two voltmeters (4.4.3.3 and 4.4.3.19), the oscil-
lator (4.4.3.1), the electronic counter (4.4.3.2), the insulation tester
(4.4.3.4), and the dielectric tester (4.4.3.5) to the power source (4.4.3.7),
Set the power switches of these instruments to ON and allow them to warm up
for the time necessary for them to stabilize.
4.4.4.2 To measure the dielectric withstanding voltage as set forth in
3.4.10:
4.4.4.2.1 Connect the dielectric tester (4.4.3.5) to pins 1 and 3 of
the bandpass filter and apply 150 plus or minus 10 vdc for a period of
one minute.  At the end of the one minute period, there shall be no evi-
dence of arcing, breakdown, or puncture.
4.4.4.2.2  Repeat 4.4.4.2.1 with the dielectric tester connected to
pins 1 and 5.  There shall be no evidence of arcing, breakdown, or puncture.
4.4.4.2.3  Repeat 4.4.4.2.1 with the dielectric tester connected to pin
1 and the case (mounting stud) of the bandpass filter.  There shall be no
evidence of arcing, breakdown, or puncture.
4.4.4.2.4  Repeat 4.4.4.2.3 for pins 2, 3, 4, 5, 6, and 7 of the band=
pass filter.  There shall be no evidence of arcing, puncture, or break-
down.
4.4.4.3 To measure the insulation resistance as set forth in 3.4.9:
4.4.4.3.1  Connect the insulation tester (4.4.3.4) to pins 1 and 3 of
the bandpass filter and apply 100 plus or minus 10 vdc for a period of
two minutes.  At the end of the two minute period, measure the resistance
at a test potential of 100 plus or minus 10 vdc.  The resistance shall be
at least 10,000 megohms.
9

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business