Digital Airspeed Indicator
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The MD23-225 Digital Airspeed Indicator is ideal for a wide range of aircraft. The TSO-certified, 2-inch airspeed indicator features high-resolution graphics with numeric readout, configurable range markings and Mach/MMO indication. Night Vision Imaging System (NVIS) compatible versions are available.
Configurable range markings eliminate the extra time and cost of mechanical range markings
- Configurable range up to 500 knots (or MPH), range markings and dynamic MMO barber pole indicator
- User-selectable Mach number display ON/OFF
- Ground Speed and True Air Speed indication via ARINC 429
- Combine with Digital Attitude Indicator and Digital Counter Drum Encoding Altimeter for a complete standby package
- Fits standard 2-inch panel cutout
- Rechargeable, field-replaceable emergency battery (available)
- Lightweight — 0.4 lbs
- Simple user interface — Single, push-and-turn control knob
- Daylight readable LCD and smooth, high-resolution graphics
- Manual external lighting control or built-in photocell for automatic dimming
- Night Vision Imaging System (NVIS) compatible (available)
- TSO certified (Design Assurance Level A)
- Designed and built in Wichita, Kansas, USA
- Two-year limited warranty
Power Input
10–32 VDC
0.14A @ 28 VDC; 4 watts nominal
Data Input
ARINC 429: Low or high speed; Labels 210, 312
Pressure: Absolute/static and differential/pitot (Quick Disconnect)
Data Output
ARINC 429: Low or high speed; Labels 205, 206
Operating Range
Configurable range of 160, 200, 300, 400 or 500 knots
Units of Measure
Knots or miles per hour (MPH)
Lighting
5, 14, or 28 VDC external control or internal photocell dimming
Battery
Rechargeable, field-replaceable emergency battery supply (available)
P/N 6430006-(1)
Technology: Nickel-Metal Hydride (NiMH)
Attributes: 0.25A @ 24 VDC nominal (6 Wh capacity)
Runtime: 60 minutes @ 0.25A
Weight
0.4 lbs (0.17 kg)
Mounting
Rear panel mounted, (4) #6–32 screws, 2.25-inch round bezel
Dimensions
2.43″W x 2.43″H x 1.0″D (61.7mm x 61.7mm x 25.4mm)
Mating Connector
P/N 9019162-1: 26-pin, D-Sub electrical connector (Quick Disconnect)
P/N 9019162-2: Pneumatic fittings (Quick Disconnect)
Certification
FAA TSO certified to C2d, C106, C113b
RTCA DO-160G qualified
RTCA DO-178C qualified, Design Assurance Level (DAL) A
Rights
U.S. Patent 11,048,389
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