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UMA 2-1/4 ELECTRIC TACHOMETER 0-3500 RPM

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4 Cylinder (1 Pulse)4 Cylinder (2 Pulse)6 Cylinder
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Overview

These 2-1/4" tachometers were designed to offer aviation styling and performance for all types of aircraft. These tachs have high resolution and easy to read displays. The analog model has a 270 sweep which provides great resolution in both the 3500 and 7000 ranges. The digital model has a bright LED display. Separate power source required. Installation is simple. If using mag pickup 1A9-1 or 1A9-2, remove vent screw-cap from magneto and screw in one of this mag sensors. Connect power to the tach and plug in DB-9 connector into the tach. If using 1A3-4 sender that goes into mechanical port, just install it there, connect 4 pin connector to the sender and DB-9 connector to the tach and connect power leads to the aircraft fuse box. Instructions included.

Lycoming/Continental
(to replace mechanical tachs)
Current: 80 milliamps Size: 2.25" round x 2.75"deep

Magnetic pickup (6 ft. cable length) included with P/N's 10-02141 and 10-02140 (T1A9).

6 ft. harness, sending unit, and .156 diameter tang adapter included with P/N 10-00083 (1A3-4).

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Q&A

Q: Does the UMA 3500 2 1/4 Analog tachometer have internal lighting?

The UMA 3500 2-1/4 Analog Tachometer does not have internal lighting.

Q: Would this Tach be approved for a certified PA-18 SuperCub?

No, these instruments, part numbers 10-00083, 10-02140, and 10-02141, are not TSO'd for certified aircraft.

Q: Would this Tach work with spark plug wire wrap type impulse sensors on a Rotax 912 ULS? (The Rotax' Tach Lighting Coil has malfunctioned)

No, this tach will not work on a Rotax 912. The range of this tach does not even reach the speed of the Rotax engine. I think what you're asking about is the tiny tach, part number 10-04182.

Q: Would this Tach be approved for a certified for Cessna 150?

No. This Tach is Non TSO'd and can not be used in a certified aircraft.

Q: Will this tach run at 24 - 28 Volt system? We are using it in a test stand.

Per the installation manual the supply voltage is +10 to +28 Volts DC, Hourmeter output +12V @ 20ma max.

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