Product Overview
The AI-TEK 70085-1010-289 is a robust industrial speed sensor designed for precise rotational speed measurement in demanding automation environments. With a 10-32 thread size and 1.25-inch thread and sensor length, this sensor provides reliable performance even under extreme conditions. Its wide operating temperature range from -73 to +150°C and storage capability up to 232°C make it suitable for applications involving high heat or cryogenic processes.
Common speed sensor failures include signal loss due to heat, vibration, or contamination. The 70085-1010-289 addresses these issues with a guaranteed output voltage of 0.3 V P-P at low speeds and a standard output of 6 V P-P, ensuring consistent signal integrity. The polarity (white lead positive) simplifies wiring, reducing installation errors.
Technical Specifications
| Parameter |
Value |
| Thread Size |
10-32 |
| Thread Length |
1.25 in |
| Sensor Length |
1.25 in |
| Output Voltage (Standard) |
6 V P-P |
| Output Voltage (Guarantee Point) |
0.3 V P-P |
| Typical Inductance |
2 mH, ref. |
| Output Polarity |
White lead positive |
| Operating Temperature |
-73 to +150°C |
| Temp Rating (deg C) |
-73 to 232 |
| Lead Length |
18 in (45.7 cm) |
| Net Weight |
1 oz. max. |
| DC Resistance |
50 ohms max. |
The guaranteed output voltage ensures reliable triggering even at low rotational speeds, while the high DC resistance minimizes power loss. These specs make the 70085-1010-289 a dependable choice for critical speed monitoring.
Industry Applications
This AI-TEK 70085-1010-289 sensor excels in applications where temperature extremes and vibration are common. In steel mills, it monitors roller speeds despite ambient heat up to 232°C. In cryogenic storage tanks, it tracks pump rotation at -73°C. The robust construction and shielded wire termination (18-inch leads) resist mechanical stress, reducing downtime.
For renewable energy, the sensor can monitor wind turbine generator speeds, where reliable output at low RPM prevents false alarms. The guaranteed 0.3 V P-P output ensures compatibility with most PLC or DCS input modules.
Installation & Setup Guidance
Mount the 70085-1010-289 with the 10-32 thread into a matching tapped hole, ensuring the sensor tip is within 1 mm of the target gear tooth. Tighten to 5-7 lb-ft torque using the hex body. Connect the white lead to positive input and black lead to common/ground. Verify polarity before powering up.
For best results, avoid routing the 18-inch lead near high-voltage cables to prevent electromagnetic interference. Use a shielded cable extension if longer runs are needed. The sensor does not require calibration; simply set your monitoring device to the appropriate threshold based on the 6 V P-P standard output.
Maintenance & Reliability
Inspect the sensor tip periodically for metal debris or buildup. The 70085-1010-289 has no moving parts, so its main wear point is the cable jacket. Replace if insulation shows cracking due to extreme temperature cycling. With a max weight of 1 oz. and a sealed design, it withstands vibration up to 20 g.
The wide temperature rating (-73 to 232°C) reduces thermal stress failures. By proactively checking cable integrity and clearance, you can extend sensor life beyond 10 years in typical industrial environments.
Selection Guide & Purchasing Advice
When ordering the AI-TEK 70085-1010-289, verify that your mounting thread is 10-32 and that the target gear tooth spacing yields a signal above 0.3 V P-P. For distances beyond 18 inches, order a pre-terminated extension cable. This sensor works with most industrial controllers that accept 6 V P-P signals.
For bulk orders or custom lead lengths, contact ubest101 for availability. As a trusted supplier, ubest101 stocks genuine AI-TEK parts with fast shipping.