TO 31S9-4-36-1 Chg 2
Section V. DIRECT SUPPORT (INTERMEDIATE) TEST PROCEDURE
7-12. Performance Test Procedures
Chart 7-2 establishes the minimum performance
These testing procedures are prepared for use by
standards required for the determination of the
electronic field maintenance shops and electronic
serviceability of assemblies maintained at the Direct
service organizations responsible for Direct Support
Support (intermediate) category of maintenance.
(intermediate) maintenance of electronic equipment.
These procedures set forth the specific requirements
that repaired electronic equipment must meet before it
is returned to the using organizations.
disconnect all test equipment at the
completion of each step with the
exception of the power supply. Set the
power supply to off when connecting and
disconnecting test setups.
CHART 7-2. Processor/Transceiver Ultrasonic Motion Signal Performance Test Procedures.
Interconnect the transceiver and the pro-
cessor. Set up the equipment in a large
room (at least 20 x 40 feet) with the
transceiver pointed along the maximum
dimension of the room. Set the RANGE
control to 10.
Connect the positive lead to terminal 7 of TB1
Set for 20 Vdc.
and negative to terminal 8 of TB1 in the
Multimeter as a
Connect between terminals 1 and 2 of TB1 in
Multimeter shall read 110 ohms for a
the processor. Walk test the system.
no alarm condition. Multimeter shall
Starting at a distance greater than 40 feet
read greater than 100K for an alarm
and walk toward the transceiver along the
Boresight line. A speed of approximately
System shall alarm for target motion
1 foot per second is sufficient. Observe
at 35±5 feet along boresight line.
the multimeter and note the target
location at which time the system alarms.
Connect as continuity measurement between
a The tamper switch shall open
terminals 5 and 6 of TB1 for the transceiver.
(infinity indication) with no less than
1/8 inch or more than ¼ inch cover
b. Pull the tamper switch plunger out
and verify that continuity is restored
(near zero resistance).
c. Replace cover and verify that
continuity is again obtained (near
Repeat 3 above for the processor.
Same as 3 above.
Change 2 7-8.1