62 Access Sensor Technologies UPAS User Guide
7 UPAS Specifications
Operating Conditions
Operating Storage
Temperature
0
°C to 50 °C–20 °C to 50 °C
Relative Humidity Type tested at 95%, +40 °C (non-condensing)
Altitude
Fully altitude/density-corrected volumetric flow control between 2,500 ft (~760 m)
below sea level and 20,000 ft (~6,100 m) above sea level
Flow Performance
Flow Rate Range
1.0, 1.5, 2.0 Liter/minute (presently only 1.0 Liter/min is supported; 1.5 and 2.0
Liter/minute available soon)
Flow Rate Accuracy
±4% of Set point
Back Pressure
9” H
2
O at 1 Liter/minute
Pulsation None
Fault Code Detection
Yes. See “4 Accessing and Interpreting Sample Log Files” on page 47 for specific fault
mode failures that result in the UPAS power off.
Flow Performance
Sampling Duty Cycle Range = 13-100% active sampling time, on 30 second time
frame
Operational
Exterior Size 128 x 70 x 33 mm (5.0 in x 2.8 in x 1.3 in)
Weight 230 g
Status Indicator Light The Status Indicator is in the UPAS Power Button.
Body Mounting Armband, clothing clip, lanyard, safety vest, etc.
Fixed Mounting Standard tripod mount
Data Logging Frequency Fixed at 30 seconds intervals
Noise < 45 dB at 10” distance
Filter Cartridge Quick interchangeable design for 37 mm filters
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