Product Introduction
When speed sensor failure leads to costly downtime, the AI-TEK 70085-1010-078 delivers reliable rotational speed measurement for industrial machinery. This speed sensor is designed to replace aging sensors in critical applications, ensuring accurate pulse generation for tachometers and control systems. The AI-TEK 70085-1010-078 uses a passive magnetic pickup principle, producing a voltage signal proportional to the rotational speed of ferrous targets.
Technical Specifications
| Parameter |
Value |
| Thread Size |
5/8-18 |
| Output Voltage (Standard) |
40 V (P-P) |
| Output Voltage (Guarantee Point) |
3.4 V (P-P) |
| Output Polarity |
White lead positive |
| DC Resistance |
130 ohms max. |
| Typical Inductance |
33 mH ref. |
| Operating Temperature |
-55 to +107°C |
| Lead Length |
-078, 12 in (30.5 cm) |
| Thread Length |
1.812 in |
| Sensor Length |
1.812 in |
| Termination |
Wires |
| Net Weight |
3 oz. max. |
| Agency Approval |
None |
Key specifications include a guaranteed output voltage of 3.4 V P-P at the pick-up point, ensuring reliable signal generation even with minimal target speed. The 40 V P-P standard output allows compatibility with most PLC and DCS input modules.
Industry Applications
The AI-TEK 70085-1010-078 is ideal for upgrading older speed sensors in turbine speed monitoring systems, conveyor belt drives, and motor RPM feedback loops. Its robust design withstands harsh environments, from foundries to refrigeration systems. For example, replacing a worn sensor in a coal conveyor can restore accurate speed tracking and prevent belt slip damage.
Maintenance & Reliability
With no moving parts and an operating temperature range of -55 to +107°C, the AI-TEK 70085-1010-078 offers long-term reliability in extreme conditions. Routine inspection should focus on wire insulation integrity and proper mounting torque to maintain the 1.812-inch thread engagement. Regular cleaning of the sensor tip ensures consistent signal strength. This sensor’s passive design eliminates the need for external power, reducing total cost of ownership.
Selection Guide & Purchasing Advice
Before ordering the AI-TEK 70085-1010-078, verify your application requires a 5/8-18 threaded sensor with 12-inch lead length (suffix -078). Ensure the mounting hole depth accommodates the 1.812-inch thread length. For retrofits, confirm output polarity (white positive) matches your wiring harness. PLC Source PRO (ubest101.myshopify.com) stocks this exact model for rapid deployment in industrial automation projects.