1811D INSTRUCTION MANUAL
56-101-00164 Rev. F
SECTION 1
Apr / 19 / 13
Page 5 of 38
SECTION 1: DESCRIPTION
1. GENERAL DESCRIPTION
The Barfield 1811D Pitot Static Test Set (Fig. 3), housed in a plastic carrying case, is a
portable, self-contained field tester designed to test aircraft pitot and static systems for leaks
as well as the operation and calibration of airspeed, altimeter, engine pressure ratio,
manifold pressure indicators, and other vacuum or low pressure units.
Panel mounted hand pumps are equipped with reservoir tanks to supply pressure and vacuum.
Metering valves provide control of all pneumatic functions. External pressure ports supply the
necessary pressure and vacuum needed for on-board testing. The 1811D has a 50 to 650 knot
sensitive airspeed and is available with a 35, 000 or 50,000 ft altimeter.
The tester consists of a hand-operated vacuum pump, a hand-operated pressure pump vacuum
and pressure gauges, 5 control valves, an altimeter and an airspeed indicator. The package
accessories include two 25-foot hoses, a pitot mast adapter, and a static port adapter kit which
enable the user to connect the aircraft pitot and static lines.
1811D PITOT-STATIC TEST SET
Figure 3
Different alternatives are available for the altimeter and airspeed indicators that are installed
in the tester, so the three-digit code that follows the basic part number of the 101-00164,
identifies which combination of them is provided with a particular tester. The first digit
indicates the airspeed range; the last digit in the code identifies the altimeter range (the
middle digit is always zero). Possible
alternatives
for both indicators are shown in the