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|  MIL-T-22913C(OS)
4.4.2 Temperature and humidity
4.4.2.1 High temperature and humidity, nonoperating. The timer shall
be subjected to the "High temperature and humidity, nonoperating" test
of MIL-E-82590 and thereafter shall meet the requirements of 3.4.2.1.
4.4.2.2 High temerature, operating. The timer shall be subjected
to the "High temperature, operating" test of MIL-E-82590 and, while at
the test temperature, shall meet the requirements of 3.4.2.2.
4.4.2.3 Low temperature, nonoperating. The timer shall be subjected
to the "Low temperature, nonoperating" test of MIL-E-82590 and there-
after shall meet the requirements of 3.4.2.3.
4.4.2.4 Low temperature, operating. The timer shall be subjected
to the "Low temperature, operating" test of MIL-E-82590 and, while at
the test temperature, shall meet the requirements of 3.4.2.4.
4.4.3 Motor input power. Apply the applicable input voltage, as
specified in 3.3.1.1 (a), to the timer motor. The power drawn by the
timer motor when driving both the switch and the potentiometer loads shall
not exceed the limit specified in 3.3.1.1.
4.4.4 Starting response time. Connect the coil of a relay per NAVORD
Drawing 812349 in series with timer circuit 1. Connect the remaining
circuit 1 timer terminal and the remaining terminal on the relay coil
across a 26 volt dc plus or minus 10 percent power supply. Record the
operation of circuit 1 from the time the applicable voltage and frequency
specified in 3.3.1.2 is applied to the timer motor until steady state
operation occurs in circuit 1. Repeat this test 24 times. Advance the
cam shaft rest position approximately 15 degrees, for each successive
test, from the rest position it had at the start of the preceding test.
The timer shall perform as specified in 3.3.1.2.
4.4.5 Switch contact tests
4.4.5.1 Contact voltage drop. Connect the coil of a relay per NAVORD
Drawing 812349 to the common terminal of circuits 1 and 2. Connect the
coil of a 12-2-13001-9431 relay in series with circuit 4; connect the
coil of a Relay, NAVORD Dwg 1563738, in series with circuit 3. Join the
remaining terminals on all relay coils together and connect them to the
zero volt dc terminal of a 26 volt dc plus or minus 10 percent power
supply. For stitch circuit 5, connect terminal 16 on P-152 to the plus
26 volt terminal of the dc power supply, connect terminal 17 on P-152 to
a 48 ohm resistor, and connect the other side of the resistor to the zero
volt dc terminal of the dc power supply. Join the remaining stitch cir-
cuit terminals of circuits 1 through 4 together and connect them to the
plus 26 volt dc terminal of the power supply. Apply the applicable volt-
age and frequency specified in 3.3.1.1 to the timer motor. For switch
circuits 6 and 7 connect terminals 18 and 19 of P152 and one side of a
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