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Air throttles are used to directly control the power output of engines. Air throttles are made in the following models:
Pulse Width Modulation (PWM) Throttles
This a microprocessor based product that converts control air pressure to pulse width modulation
(PWM). Switch, 4-20mA, 0-9V/1-9V and RS 232 can also used as input to generate the PWM output
signal. PWM is the required signal to throttle the CAT ECM from 0-100%. There is a serial interface
provided to facilitate programming and setup. When multiple engines are chained together this
throttle can be adjusted to even load distribution. This will also respond to serial commands to
throttle the engine.
Analog Throttles
This a microprocessor based product that converts control air pressure to voltage (analog signal).
Switch, 4-20mA, 0-9V/1-9V and RS 232 can also used as input to generate the analog output signal,
which is the required signal to throttle the CAT ECM from 0-100%. There is a serial interface
provided to facilitate programming and setup. This will also respond to serial commands to
throttle the engine.
J1939 Throttles
To learn about J1939 Throttles, see our J1939 Products.
We also design and build Dual Air Throttle Control, Relay Throttle Transfer Module (6 Pole) for
various customers.
Instruction guide for each model of the DNFT is available for download. These files are in Adobe Acrobat (.pdf) format. These product data sheets are available to be printed out and reviewed for your convenience. You must view these downloads using Adobe Acrobat Reader, which is freely available to download at http://www.adobe.com.
