The Barfield 1811HA testers are portable, selfcontained units, used for testing and calibrating aircraft pitot-static systems. The tester has threeinstrument capability for analog (Altimeter, Vertical Speed, and Airspeed) units to perform aircraft leak tests or instrument calibrations. All 1811 series testers are configured with hand pumps and external pressure ports for supplying the necessary pressure and vacuum needed for on-board testing and calibration. 1811HA models come with an additional internal electric pump. The Barfield 1811 series of Air Data testers are practical for new facilities or for those with a limited budget. The unit includes two 25-ft hoses, a pitot mast adapter, a 2423F static port adapter kit and a pitot-static system cd-rom.
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