Product Overview

The 70085-1010-018 is a robust AI-TEK speed sensor designed for reliable rotational speed measurement in demanding industrial environments. This passive magnetic pickup sensor delivers a standard output voltage of 40 V (P-P) and a guaranteed output voltage of 3.4 V (P-P) at the specified air gap. It features a 5/8-18 thread size, a 3.625-inch thread length, and a total sensor length of 4.75 inches. The sensor terminates with a connector and weighs a maximum of 5 oz. Its operating temperature range spans from -55 to +107°C, making it suitable for extreme conditions. The 70085-1010-018 is a direct replacement for many legacy speed sensors in rotating machinery.

Technical Specifications Analysis

The key parameters of the 70085-1010-018 define its performance. The standard output voltage of 40 V (P-P) ensures a strong signal for long cable runs. The guaranteed output voltage of 3.4 V (P-P) provides a reliable trigger point for control systems. DC resistance is 130 ohms maximum, and typical inductance is 33 mH reference. Output polarity is pin B positive, simplifying wiring. The operating temperature range of -55 to +107°C allows use in both cold storage and hot engine compartments. The 5/8-18 thread size is a common industrial standard, and the connector termination facilitates quick installation and replacement.

Application Scenarios & Usage Methods

This AI-TEK speed sensor is ideal for monitoring turbine shaft speed in power generation and oil and gas applications. Use it to measure the rotational speed of pumps, compressors, and gearboxes. The 70085-1010-018 mounts directly into a threaded hole in the bearing housing or machine casing. Position the sensor tip within the specified air gap from a ferrous gear tooth or keyway. The sensor generates an AC voltage pulse each time a tooth passes, allowing a PLC or tachometer to calculate RPM. Its robust construction withstands vibration and temperature extremes common in heavy industry.

Installation Guide & Packing List

Install the 70085-1010-018 by threading it into a 5/8-18 UNF tapped hole. Use a jam nut to lock the sensor in place after setting the correct air gap. Ensure the sensor tip does not contact rotating parts. Typical air gap ranges from 0.020 to 0.050 inches for optimal signal. The package includes one AI-TEK speed sensor with connector. No mounting hardware or mating connector is included unless specified.

Purchasing Advice

When selecting the 70085-1010-018, verify the thread size and length match your application. The 5/8-18 thread and 3.625-inch thread length fit many standard mounting holes. Confirm the operating temperature range covers your environment. PetroPartsOnline stocks this sensor for fast shipment. Order the mating connector separately if needed. This sensor works with most PLCs and speed monitoring systems that accept passive magnetic pickup inputs.

Repair & Maintenance Tips

The 70085-1010-018 is a passive sensor with no moving parts and requires minimal maintenance. Periodically inspect the sensor tip for debris or metal buildup. Clean the tip with a soft cloth and non-residue solvent if necessary. Check the connector for corrosion or damage. Ensure the cable is secured away from moving parts. Replace the sensor if the output signal drops below the guaranteed voltage level. Store spare sensors in a clean, dry environment within the specified temperature range.

Frequently Asked Questions (FAQs)

Q: What is the output voltage of the 70085-1010-018?

A: The standard output voltage is 40 V (P-P), and the guaranteed output voltage is 3.4 V (P-P).

Q: What is the thread size and length?

A: The thread size is 5/8-18, and the thread length is 3.625 inches.

Q: What is the operating temperature range?

A: The sensor operates from -55 to +107°C.

Q: How is the sensor terminated?

A: It uses a connector termination, with pin B positive for output polarity.

Q: What is the weight of the sensor?

A: The net weight is 5 oz. maximum.