Product Introduction
The AI-TEK 70085-1010-004 Speed Sensor is a precision industrial automation module designed for reliable rotational speed measurement in demanding applications. With a robust metal housing and a 5/8-18 thread mounting configuration, this sensor withstands extreme temperatures from -73°C to +107°C, making it suitable for aerospace, power generation, and heavy machinery environments. The 70085-1010-004 delivers a standard output voltage of 43 V (P-P) with a guaranteed minimum of 4.3 V (P-P) at the sensing point, ensuring consistent performance even under vibration and electrical noise.
Technical Specifications Breakdown
Key parameters of the AI-TEK 70085-1010-004 define its capability:
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Output Voltage (Standard): 43 V (P-P) – High signal strength for long cable runs.
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Output Voltage (Guarantee Point): 4.3 V (P-P) – Reliable signal at the exact target distance.
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DC Resistance: 130 ohms max – Low coil resistance minimizes power loss.
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Typical Inductance: 32-46 mH – Optimized for frequency response.
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Output Polarity: Red lead positive – Easy identification during installation.
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Operating Temperature: -73 to +107°C – Wide thermal tolerance for extreme environments.
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Lead Length: 10 ft (3.05 m) – Pre‑wired for convenient termination.
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Net Weight: 16 oz. max – Lightweight yet durable.
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Thread Size: 5/8-18 – Standard industrial mounting.
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Thread Length: 1.125 in – Ensures secure installation.
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Sensor Length: 2.125 in – Compact design fits tight spaces.
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Agency Approval: None – Consult application requirements.
Industry Applications
The AI-TEK 70085-1010-004 excels in three key scenarios:
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Gas turbine speed monitoring: With its 43 V P-P output and wide temperature range, the 70085-1010-004 reliably tracks shaft rotation in high‑heat environments where other sensors fail.
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Conveyor belt tachometry: The guaranteed 4.3 V output at the sensing point ensures accurate speed measurement even with slight misalignment or vibration.
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Pump and compressor protection: Installed in a 5/8-18 threaded port, this sensor detects overspeed or underspeed conditions, triggering alarms to prevent catastrophic damage.
Installation & Setup Guidance
For optimal performance, mount the AI-TEK 70085-1010-004 with the 5/8-18 thread into a compatible tapped hole. Ensure the sensor face is positioned at a distance that produces the guaranteed 4.3 V P-P output—typically within 0.050 in of the target. Connect the red lead to the positive input of your monitoring system and the black lead to common. Use the 10‑ft lead length to route wiring away from high‑noise sources. Verify DC resistance (130 ohms max) with a multimeter before energizing.
Maintenance & Reliability
The AI-TEK 70085-1010-004 requires minimal maintenance. Periodically inspect the sensor tip for metallic debris or buildup that could alter the air gap. Check the cable jacket for cuts or abrasion in high‑vibration areas. Re-tighten the mounting nut to 10‑15 ft‑lbs after initial thermal cycling. The robust design supports continuous operation from -73°C to +107°C, reducing unplanned downtime.
Selection Guide & Purchasing Advice
When selecting a replacement, verify thread size (5/8-18), sensor length (2.125 in), and output voltage requirements. The 70085-1010-004 is a direct fit for many OEM applications. For bulk or expedited orders, contact ubest101 – your trusted source for industrial automation spares.