AI-Tek 70085-1010-026 High-Output Magnetic Pickup Technical Guide
Product Introduction
This AI-Tek passive speed sensor serves as a primary tachometer interface for machinery requiring high signal amplitude at low speeds. It provides a reliable speed-to-voltage conversion without the need for an external power supply. Furthermore, the 70085-1010-026 features a 4.75-inch (120.64 mm) total length with a 3.625-inch thread, allowing it to bypass thick housing walls or heat shields. It communicates with speed switches, frequency-to-analog converters, and PLC high-speed counter modules. Therefore, this sensor provides a stable foundation for overspeed protection and process rate monitoring. Specifically, the fully encapsulated design ensures performance in oily or humid environments common in power generation.
Core Value
This magnetic pickup ensures maximum signal integrity for critical speed monitoring loops in heavy industrial settings. Firstly, the 70085-1010-026 internal high-density coil produces a standard output voltage of 150 V (P-P), ensuring the signal is strong enough for long cable runs. Moreover, the hardware design promotes high system availability because it contains no moving parts or active electronic components that can wear out. Maintenance teams benefit from the sensor's passive nature, as it is inherently explosion-proof and requires no complex wiring for power. Specifically, the high-quality pole piece is optimized for fine-pitch gears. Therefore, users achieve consistent timing performance across the entire lifecycle of the rotating equipment.
Technical Insights
The system architecture supports a self-generating AC output, meaning the voltage increases directly with the target surface speed. It features a 5/8-18 UNF-2A thread to ensure secure mounting and precise air-gap adjustment. In addition, the unit operates reliably in ambient temperatures ranging from -73°C to +107°C. Specifically, the AI-Tek 70085-1010-026 incorporates a specialized internal potting compound to dampen high-frequency mechanical resonance. This feature prevents false counts during intensive machine vibration periods. Furthermore, the integrated connector handles standard 2-pin MS-style cables. Consequently, the interface maintains high connectivity standards for universal tachometer systems.
Installation & Maintenance
Successful deployment of the 70085-1010-026 requires a precise air-gap setting between the sensor pole piece and the ferrous target. Firstly, verify that the gear or sprocket is clean of metal debris that could interfere with the magnetic flux. You must screw the sensor into the mounting hole until it touches the target, then back it off (typically 1/4 to 1/2 turn) to set the gap for the 70085-1010-026. This action ensures a reliable electrical pulse for the speed monitoring electronics. Furthermore, check the output frequency with an oscilloscope to confirm a clean sine wave without clipping. If the signal is weak, inspect the air gap or check the cable for high resistance. Finally, we ship the 70085-1010-026 via Fedex, UPS, or DHL.
Buyer’s Guide FAQ
What is the output voltage of the 70085-1010-026?
The 70085-1010-026 provides a high-output standard of 150 V (Peak-to-Peak) under typical test conditions.
Does this sensor require a power supply?
No, it is a passive magnetic pickup (MPU) that generates its own voltage through magnetic induction.
What is the thread size for the 70085-1010-026?
The sensor uses a standard 5/8-18 UNF-2A thread with a thread length of 3.625 inches.
Can this sensor be used in hazardous locations?
Specifically, passive sensors are often considered "simple apparatus" in intrinsic safety circuits, but check your local certification requirements.
Which cable should I use with the 70085-1010-026?
It is compatible with standard 2-pin MS-type connectors (e.g., MIL-C-5015) using shielded twisted-pair wire.
