Meriam M203 Altimeter Indicated Air Speed Tester User Manual
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Specifications
Type, Range and Display Resolution:
17.4-3 psia (900.00 mmHg) – XX.YYY (XXX.YY)
Minimum / Maximum Display Values:
Altitude: -2000.0 to +36,000.0 Feet
-609.6 + 10,972.8 Meters
Indicated Air Speed:
0 – 496.4 Knots (approx.)
0 – 571.3 MPH (approx.)
0 – 919.4 km/h (approx.)
Note: the barometric pressure value at time the TARE button
is activated will determine the maximum indicated air speed.
Altitude Accuracy (NIST traceable):
+ 0.02 % F.S. (F.S. = 900 mm Hg)
Indicated Air Speed Accuracy (NIST traceable):
+ 0.028 % F.S. (F.S. = 900 mm Hg)
Accuracy statements include the combined effects of
temperature, non-linearity, repeatability, hysteresis and
resolution.
Warm up time = 5 minutes.
Temperature:
Storage = -40° C to 60° C (-40° F to + 140° F)
Operating = -20° C to + 50° C (-4°F to 122° F)
Media Compatibility:
AI: Absolute pressure sensors for use with gases and
liquids compatible with 316L SS
Pressure Limits:
AI units: 77 PSIA (4000 mm Hg Abs)
Connection:
1/8” female NPT, 316L SS. P1 is the pressure connection
P2 is not accessible (factory plugged with metal disc)
User must use wrench on the pressure manifold when
installing user’s 1/8” NPT fitting. Do not tighten the fitting
without using a wrench on the pressure manifold. Failure to
use a wrench on the manifold will damage the plastic
enclosure and void warranty. No torque should be applied to
the manifold with respect to plastic enclosure.