tachometer

NegotiableUpdate on 05/07

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Nature of the Manufacturer: Producers

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Overview

DATCON 71784-22 is a pointer type engine tachometer produced by Datcon brand, widely used in scenarios such as construction machinery, trucks, generator sets, etc. that require monitoring of engine or transmission system speed.

Product Details

DATCON 71784-22 is a pointer engine produced by the Datcon brandtachometerWidely used in scenarios such as construction machinery, trucks, and generator sets that require monitoring of engine or transmission system speed. According to multiple spare parts lists, its main features are as follows:

purpose
Used for real-time display of engine speed, it is often paired with magneto electric or Hall type speed sensors (such as GG101) and widely installed in instrument assemblies of domestic construction machinery such as XCMG.
Electrical specifications
Standard 24V DC power supply, dial illumination with built-in light bulb, can be directly replaced with instruments of the same model without additional modification
.
Installation and Interface
The panel opening size is about 3-3/8 in (86 mm), and the rear shell is equipped with shock-absorbing fixing ears; The signal input is usually three terminal (positive, negative, speed pulse), compatible with the sensor three wire system.
Range and accuracy
Common scales range from 0-3000 r/min or 0-4000 r/min (slightly different batches), with an accuracy of about ± 2% of the full range, and strong resistance to vehicle vibration and instantaneous voltage fluctuations.
Typical supporting facilities
On XCMG ZL50 series loaders, XG series graders, rollers and other models, 71784-22tachometerTogether with GG101 speed sensor and ZSBY instrument panel, it forms a complete engine monitoring unit
.
Replacement and maintenance
Belonging to vulnerable instrument components, if the pointer is stuck, the lighting does not light up, or the reading deviation is too large, it can be directly replaced as a whole; Pay attention to polarity during installation, and shield the pulse signal line to reduce interference.