TM- 801 Digital Tachogenerator

A digital tachogenerator is an electronic device used to measure the speed of a rotating object. It works by converting rotational speed into electrical signals. It is commonly used in industrial applications such as machine tools, conveyor systems, and robotics. The device is also used in automotive applications for measuring the engine speed and calculating fuel efficiency. The digital tachogenerator is a reliable, accurate, and economical method of measuring speed. It is also easy to install and maintain.

Shipping Timing: 2-5 Business Days.

Working Principle

Digital Tachogenerators employs the principle of generating digital pulse output (LS-TTL compatible) using photo –interruptor and a rotating disc. This digital signal output at the rate of 60 PPR proprotional to speed is transmitted to the panel instrument over the interconnecting 3 core cable or to any of signal data processing system.

Digital Tachogenerator

The Tachogenerator-Optical Encoder consists of extruded alluminium machined housing (62mm Dia) with SS Shaft(10mm Dia) mounted on two frictionless ball bearings. This has to be coupled with the rotating shaft of the drive whose RPM or Pulse data to to be tested/measured continuously. Tachogenerator is of Servo or face mounting type with 3 pin connector mounted.


Specifications: Electronic


Supply Voltage 6V DC (Regulated).
Supply Current 50mamp – 70mamp
Output Type Digital Pulse Output
O/P Pulse Rate 60ppr (Pulses per Revolutions)
O/P Pulse Amplitude Same as Supply Voltage.
O/P Frequency 10 KHz @ 10000 RPM.
O/P Characteristics Maximum ripple over 1revolution = 15% Electrical Phase Error per increment = +20%
Outlet Cable 2/3 meter long (Standard) with three cores along with connector.


Specifications: Mechanical


Electronic Body Machined Aluminium Housing with Aluminium or ABS plastic cover.
Shaft Size 10.0 mm (Dia.), 23 mm shaft extension.. Stainless Steel (SS-304).
Mounting Servo or Face – by 3 screws of M-4 (1200 apart on a PCD of 48 mm dia.).
Overall Size Body dia. 62 mm, Depth: 80 mm. (excluding shaft and connector gland).
Weight(Approx.) 300 gram.

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