GAC Magnetic Speed Pickups
  • High quality magnetic speed sensors
  • Many thread sizes, lengths, outputs and connector options
  • Replaces many OEM and Competitor
 

GAC's Magnetic Speed Sensors are a rugged and economic solution for detecting engine speed. Sturdier than plastic sensors and outperforming semiconductor-type devices at high temperatures, GAC's epoxy encapsulated sensors are unaffected by dust and dirt. Multiple sizes and customized configurations are available.
                     
APPLICATION OF THE MONTH:  ESD5111T – Temperature Compensated Isochronous, Variable Speed and Droop Governing
 
 
The temperature compensated ESD5111T governor is the preferred controller for use in extreme environments.  Applications include movie set generator controls that demand stable, consistent power output under the most adverse conditions.  

The ESD5111T is compatible with a variety of GAC actuators that control in-line, rotary and PF style diesel fuel injection systems as well as ATB’s (Actuator Throttle Bodies) on gaseous fueled engines.  It offers switchable Droop and idle control with an auxiliary 10V power supply and input for synchronizing and load sharing modules.

Used for Constant Power in the Most Extreme Environments:

Desert Oil Drilling Platforms:


Power Generation for Arctic and Desert Movie Set Locations:

 

Large Mobile, and Small Light Tower Power Generation:



FAQ: HOW DO I KNOW IF MY SPEED SENSOR IS WORKING?

The output voltage of a magnetic pickup is affected by three factors.

  • Output voltage increases with increases in the surface speed of the flywheel teeth.
  • Voltage decreases as the air gap between the magnetic pickup and the flywheel teeth increases.  (The optimum air gap is typically 0.020” to 0.025” {0.5 to 0.65mm})
  • The voltage waveform is determined by the size and shape of the gear tooth in relation to the size and shape of the sensors pole piece.

If you suspect the magnetic pickup is not functioning properly measure its resistance by disconnecting the pickup leads and check the sensors with an ohmmeter: (refer to manufacturer’s specifications for acceptable values)

*These are typical values for standard sensors; high output versions have higher resistances up to 1kΩ

Measure between the pickup case and leads with an ohmmeter for near infinite resistance.

Confirm there are no open circuits, including the wiring harness and all connectors.

Inspect the sensor for mechanical damage and remove any debris that might have accumulated on the pole piece.  Reset the air gap to 0.020” to 0.025” (0.5 to 0.65mm) and confirm that the sensor outputs a minimum of 1.0 VAC at cranking across the inputs to the speed control.




     

GAC WILL BE CLOSED FRIDAY, MARCH 30TH
AND WILL REOPEN APRIL 2ND, 2018