The INSCO 4328 series servoed torquemeter represents state-of-the-art accuracy combined with dependable performance. The 4328 series most commonly provides critical engine or transmission torque information to the pilot but the 4328 also offers the versatility to monitor any aircraft pressure where accuracy is critical.

SPECIFICATIONS:
The INSCO 4328 indicator operates from a high-impedance strain-gauge transducer. In most torque applications, the transducer used is AeroPanel-INSCO part number 1007-1023, a 70 psi differential unit. When used to measure direct pressures, a 1007 series gauge pressure transducer should be used. The indicator develops a closely regulated 10 volt output for transducer excitation. The only external requirements are 28 volt DC power, and the transducer pressure signal.

The 4328 torquemeter has been designed with maximum reliability in mind. There are no punched gears or bushings in an INSCO gearhead. We use precision machined close-tolerance aluminum and stainless gearing and every gear shaft runs in ABEC7P miniature bearings. All electronic components are selected with a wide 'cushion' to prevent premature failure, and much of the circuitry is hybridized into a custom thick-film circuit.

This indicator is available with an optional overtorque warning lamp to indicate when a preset value of torque has been exceeded. Once on, the lamp can only be turned off by a key operated switch. This option also includes a self-test function.