Magnetic speed sensors manufacturing

Intrinsically Safe Hall Effect Sensors


SPECTEC's Intrinsically Safe Hall effect speed sensors

  • Intrinsically Safe, ATEX Intrinsically Safe and and Non-Incendive/Limited Energy certified
  • Frequency range: from zero speed to 20 kHz
  • Air Gap: Gear target sensors: 1" (25 mm) or more depending on target mass and velocity
       Magnetic target sensors: .160" (4 mm)
  • Temperature Range: T5: -40° to 149° F (-40° to 65° C)
       T6: -40° to 185° F (-40° to 85° C)
  • Shock and vibration resistant and impervious to oily, wet or harsh environments.

FM ApprovalFM approved per Approval Standard 3610 for Intrinsically Safe (Class I, Div I and Class I, Zone 0 - code AEx [ia]).

Intrinsically Safe Hall Effect Sensor Installation

Installation Note: The Intrinsically Safe Hall effect sensor MUST be installed with an FM Global entity approved barrier. Installations must meet the requirements of intrinsically safe systems for classified locations and must follow details specified in FM Global engineering control drawing #85048.

Three Main Intrinsically Safe Hall Effect Sensor Types:

Intrinsically Safe magnetic Hall effect sensors - Magnet targets: are designed to operate in hazardous locations and switch in the presence of a magnetic field of 50 Gauss minimum.

Intrinsically Safe Hall effect gear tooth sensors - Ferrous targets: use an internal magnet to switch in the presence of ferrous targets such as gear teeth and blade tips down to absolute zero speed.

The Intrinsically Safe Hall effect gear position sensor has the ability to sense an output shaft or a gear while applying zero drag on the target. Sensor sensitivity allows for detection of as small 0.10" wide and 0.10" deep gear teeth. Air gaps of up to 1/8 inch are possible, depending on gear size.

Intrinsically Safe Linear Position Sensors detect continuous variations in a magnetic field and converts the field strength to a proportional voltage. The output voltage produced for zero field is nominally 2.5v, with a standard transfer function of +/-10mV/Gauss. Each Intrinsically Safe sensor measures along one axis only.

Applications for Intrinsically Safe Hall Effect Sensors:

Intrinsically Safe Hall effect sensor applications such as fine gears, detection of very low to zero speed and the change in target direction in hazardous environments. Hall effect sensors are used in ABS brake systems and as vehicle speed sensors, wheel speed sensors and camshaft sensors.

Each line of Intrinsically Safe Hall effect sensors have optional: dual output (for example, frequency and temperature), hermetically sealed, sanitary and conduit mount.