The DH Series
The experts at AI-Tek have been designing and manufacturing Hall Effect sensors for harsh applications for over sixty years. With a dedication to providing reliable and accurate sensors, the DH Series product line is developed specifically for the industrial, rail, military and automotive industries.

Key Features of the DH Series
Suitable for 32 diametral pitch or coarser gear (target), the standard catalog sensors are easily applied to your various sensing needs. If you have a unique, special requirement that cannot be met with any of the standard options, we will gladly review your specs and work with you on a special sensor design.

  • High temperature range of -40°C to +125°C
  • No rotational alignment required
  • Reverse voltage protection, up to -30 Vdc, to prevent damage if miswired
  • Supply Tracking or TTL Compatible output options
  • Wide range of supply voltage in single design of 4.5 - 24 Vdc
  • Rugged sensors designed to meet the toughest Navy ship-board standards to European Railroad Applications

How the RH Series Works
The RH sensor is hall-effect based and can sense each change in target movement, regardless of speed, from near zero to 15 kHz frequency range, generating a steady pulse train of frequency proportional to the target speed. Each time a gear tooth (or any ferrous discontinuity) passes in front of the sensor the output changes state. Installation is simple and requires no rotational alignment.

For applications with cable runs that exceed 500 feet, you will need to use a Digital Signal Distance Amplifier (DSDA).


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