Ambient Pressure Reference (APR) Specifications and Dimensions
APR-2 Specifications
Barometric pressure range 0-1000 mmHg (torr)
Initial accuracy +/- 1 mmHg
Stability over time Better than 1.0 mmHg / year at 20ºC to 30ºC.
Physical dimensions 12.5 x 10.5 x 4 cm
Weight 570 g
Data output connector RJ45 (8 pin non-keyed)
Power connector 9VDC
Power Input 9VDC or 12W POE (IEEE 802.3af compliant)
Current 60 mA
Standard cable length 1 meter
Maximum cable length 10 meters
Operating temperature range 0º to 45º C
Operating humidity <70% R.H. non-condensing
Storage temperature -20º to 65º C
Storage humidity <85% R.H. non-condensing
APR-1 Specifications
Barometric pressure range 650-800 mmHg (torr)
Initial accuracy +/- 1 mmHg
Stability over time Better than 1.0 mmHg / year at 20ºC to 30ºC.
Physical dimensions 14 x 10.5 x 4 cm
Weight 510 g
Data output connector RJ45 (8 pin non-keyed)
Voltage requirement 6.25 to 12.0 VDC
Current 60 mA
Standard cable length 1 meter
Maximum cable length 10 meters
Operating temperature range 0º to 50º C
Operating humidity <70% R.H. non-condensing
Storage temperature -20º to 65º C
Storage humidity <85% R.H. non-condensing
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