American AI-TEK passive sensors 70082-1000-021 70082-1000-021 70084-1713-111 70082-1000-022 70085-1010-001 70082-1000-023 70085-1010-002 70082-1000-024 70085-1010-003 70085-1010-004 70085-1010-005 70085-1010-007 70085-1010-018 70085-1010-024 70085-1010-026 70085-1010-026 70085-1010-028 70085-1010-037 70085-1010-041 70085-1010-048 70085-1010-054 70085-1010-055 70085-1010-056 70085-1010-078 70085-1010-081 70085-1010-086 70085-1010-118 70085-1010-118 70085-1010-120 70085-1010-120 70085-1010-131 70085-1010-137 70085-1010-174 70085-1010-175 70085-1010-182

AI-Tek Instruments (formerly Airpax ?)is a well respected company and has been supplying magnetic speed sensors for over fifty years to the industrial, machine tool, petrochemical and aerospace industries.

AI-Tek manufactures a complete line of magnetic speed sensors including Passive, Hall Effect, Bi-Directional, and Side Look speed sensors.

Choosing a speed sensor can be a daunting task unless you are replacing a speed sensor that you know the exact part number. Here is a check list of items your should consider before purchasing the magnetic speed sensor for your application:

• Choose either Passive or Active (Hall Effect) type Magnetic Speed Sensor - this depends on the application If the top RPM is under 100 RPM then use a Hall Effect Sensor as this sensor's output is independent of sensing gear speed or shaft rotation speed.

• Check the input voltage requirements of the instrument or module that will receive the electrical pulse signal from the sensor. The electrical signal at the receiving instrument must be greater than the minimum +1 logic state. When the voltage pulse exceeds the +1 logic state, the instrument (tachometer) will count the pulse. Choose a magnetic speed sensor that has the correct output voltage for your receiving instrument or tachometer.

• Choose Thread Size and Length - this is important if the speed sensor is mounting in an engine block. Measure the distance from the jam (locking nut) to the face of the rotating gear or shaft)

• Choose the classification - do you need FM or UL approval for hazardous areas?

• Choose the application - General Purpose, High Sensitivity, Power -

• Pick the type of connector.

• Choose the Mounting Bracket and Sensing Gear ( if required)

• Choose the Tachometer (Note - all AI-Tek Process Tachometers feature the correct input voltage specifications for all passive and Hall Effect magnetic speed sensors.

• Need Assistance? Call Rick Huss or Pierre Grimes - Engineering Consultant - 248-624-1990