RM23712 TPS
42
3.6.1 Temperature
Operating Ambient, normal mode (inlet Air): 0°C min/+50°C max at 5000m above sea level.
(At full load, with a maximum rate of change of 5°C/10 minutes, but no more than 10°C/hr)
Operating Ambient, stand-by mode (inlet Air): -5°C min/+50°C max at 5000m above sea level.
Non-operating ambient: -40°C to +70°C (Maximum rate of change shall be 20°C/hr)
3.6.2 Humidity
Operating: 5%- 90% relative humidity (non-condensing)
Non-operating: 5%- 95% relative humidity (non-condensing)
Note: 95% relative humidity is achieved with a dry bulb temperature of 55°C and a wet bulb
temperature of 54°C.
3.6.3 Altitude
A) Operation : sea level to 5000m
B) Non-Operation : sea level to 15,200m
3.6.4 Vibration
A) Operation : 0.01g²/Hz at 5 Hz sloping to 0.02g²/Hz at 20 Hz, and maintaining 0.02g²/Hz
from 20Hz to 500Hz. The area under the PSD curve is 3.13gRMS. The duration shall be 20
minutes per axis for all three axes on all samples.
B) Non-Operation :- Sine sweep: 5Hz to 500Hz @ 0.5gRMS at 0.5 octave/min; dwell 15min at
each of 3 resonant points;
3.6.5 Mechanical Shock
A) Operation: 10G, 4.3 mSec, no malfunction
B) Non operating: 50G Trapezoidal Wave, Velocity change = 4.3m/sec. Three drops in each
of six directions are applied to each of the samples.
3.6.6 Thermal shock (Shipping)
Non-operating: -40°C to +70°C, 50 cycles, 30°C/min. ≥transition time ≥15°C/min., duration of
exposure to temperature extremes for each half cycle shall be 30minutes.
3.6.7 Catastrophic Failure
The power supply shall be designed to fail without startling noise or excessive smoke.
3.6.8 EMI
The power supply shall comply with FCC part 15, CRISP 22 and EN55-22; Class B for both
conducted and radiated emissions with a 3dB margin. Test shall be conducted using a shielded DC
output calbe to a shielded load. The load shall be adjusted to 100% load. Test will be performed at
115VAC @ 60Hz and 230VAC @ 50Hz power.
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