AI-Tek 70085-1010-422 Speed Sensor - Technical Specifications

AI-Tek Instruments 70085-1010-422 Speed Sensor

The AI-Tek 70085-1010-422 speed sensor delivers precision motion detection for industrial automation and machinery monitoring applications. This high-performance sensor provides accurate speed measurement in demanding environments.

Product Overview

• Manufacturer: AI-Tek Instruments
• Part Number: 70085-1010-422
• Product Type: Speed Sensor
• Sensor Technology: Magnetic Pickup
• Mounting Style: Threaded Barrel

Technical Specifications

• Output Voltage (Standard): 28 V AC (P-P)
• Output Voltage (Minimum): 3.5 V AC (P-P) at 100 RPM
• Frequency Response: 0 to 15 kHz
• Operating Temperature: -40°C to +120°C
• Storage Temperature: -55°C to +130°C
• DC Resistance: 180 ohms ±10%
• Inductance: 45 mH ±15% at 1 kHz
• Current Rating: 50 mA maximum
• Insulation Resistance: 100 MΩ at 500 V DC
• Dielectric Strength: 500 V RMS for 60 seconds

Mechanical Specifications

• Thread Size: 3/4-16 UNF-2A
• Thread Length: 1.25 inches
• Overall Length: 3.75 inches
• Body Diameter: 0.875 inches
• Weight: 0.45 kg
• Cable Length: 6 feet shielded
• Connector Type: MS-style weatherproof

Performance Characteristics

• Target Material: Ferrous metals
• Air Gap: 0.020 to 0.060 inches recommended
• Target Size: 40-tooth gear minimum
• Output Waveform: Sinusoidal
• Linearity: ±1% of full scale
• Response Time: 2 milliseconds maximum

Environmental Ratings

• Ingress Protection: IP67
• Vibration Resistance: 10 g from 10-2000 Hz
• Shock Resistance: 50 g for 11 milliseconds
• Humidity: 0-100% condensing
• EMI/RFI Protection: MIL-STD-461 compliant

Application Areas

• Industrial motor speed monitoring
• Turbine and compressor protection
• Vehicle transmission systems
• Marine propulsion monitoring
• Aerospace auxiliary systems

Installation Requirements

• Mount perpendicular to gear rotation plane
• Maintain specified air gap tolerance
• Use anti-seize compound on threads
• Ensure proper cable strain relief
• Verify ground connection for shielded cable

Frequently Asked Questions

What is the minimum speed this sensor can detect?

The sensor reliably detects speeds as low as 100 RPM with a 3.5V output signal.

Can this sensor operate in wet environments?

Yes, with IP67 rating, it is protected against temporary immersion in water.

What type of output signal does it provide?

It generates a sinusoidal AC voltage proportional to target speed.

Is calibration required after installation?

No calibration is needed as it is a passive magnetic pickup sensor.

What maintenance is required?

Periodic inspection of air gap and cable integrity is recommended.

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