Click here to make tpub.com your Home Page

Page Title: Tachometer
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-A-23282B(Wep)
the current in each clutch is less than 3 ma when the switch
for that clutch is operated.  Switch the ADJ POT MAN-AUTO
POT switch to AUTO-POT and, watching the meters, adjust the
BAL CURRENT potentiometer and the two AUTO POT TRIM poten-
tiometers so as to make the peak current in each direction
fall within 12.5 plus or minus 0.5 ma.  With these adjust-
ments made, the currents shall be equal within 0.25 ma
during the "balanced current" periods, as shown in Figure 2.
4.5.4.11.2 Switch the DUMMY LOAD-CLUTCH switches, one at
a time, to CLUTCH, making the transition while the current
in that side is less than 3 ma and noting the time,
4.5.4.11.3 Operate the actuator for a minimum of 30
minutes under this condition, and once during each 5 minute
interval operate the oscillograph at the slowest chart speed
for 1 or 2 cycles.  There should be no excessive oscilla-
tion at rated or balanced current in either direction, nor
should there be a complete loss of travel in either direction.
4.5.4.11.4 At the conclusion of 4.5.4.11.3, return each
DUMMY LOAD-CLUTCH switch to the DUMMY LOAD position, in turn,
while the current in that clutch is less than 3 ma, and
return the ADJ POT MAN-AUTO POT switch to the ADJ POT MAN
position.
4.5.4.11.5 Immediately after completion of a duty cycle,
measure the insulation resistance as specified in 3.3.1,
by the method indicated in 4.5.4.1.
4.5.4.11.6 Replace the spring load on the test stand with
the torque measuring device, allow the actuator to cool
within 5 degrees C (9 degrees F) of ambient, and repeat the
tests specified in 4.5.4.7.
4.5.4.11.7 Compliance with the limits of the tests speci-
fied in 4.5.4.11,6 shall satisfy the requirements of 3.3,7.
4.5.4.12 Diode.  Verify that the diode complies with
requirements of 3. 3.2.3.
4.5.4.13 Tachometer. Verify that the tachometer complies
with requirements of 3.3.4.2.
4.5.4.14 Packaging and packing.
The actuator shall be
examined to ensure that it complies fully with the require-
ments of Section 5.
28

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