AI-Tek Airpax 70085-1010-405 Passive Speed Sensor

AI-Tek Instruments 70085-1010-405 Passive Speed Sensor

The 70085-1010-405 delivers reliable speed monitoring in extreme temperature environments up to +232°C. This passive sensor requires no external power and features an extended 2.75-inch threaded section for deep mounting applications.

Product Overview

This AI-Tek Airpax passive speed sensor is designed for high-temperature industrial applications. It provides accurate speed measurement without external power requirements, making it ideal for harsh environments.

Core Specifications

• Manufacturer: AI-Tek Instruments (Airpax)
• Part Number: 70085-1010-405
• Sensor Type: Passive Speed Sensor
• Condition: New Original Factory Packing
• Warranty: 12 Months Factory Warranty

Physical Dimensions

• Thread Length: 2.750 inches (69.85 mm)
• Sensor Length: 4.000 inches (101.6 mm)
• Thread Size: 7/8-14 UNF standard
• Unit Weight: 0.45 kilograms
• Cable Length: 15 feet (4.57 meters)

Electrical Performance

• Standard Output Voltage: 90 volts peak to peak
• Guaranteed Output Voltage: 9.4 volts peak to peak minimum
• DC Resistance: 750 ohms maximum
• Typical Inductance: 210 millihenries maximum
• Output Polarity: White lead positive
• Frequency Response: 8 Hz to 4,000 Hz
• Measurement Range: 0 to 12,000 RPM
• Response Time: 6 milliseconds maximum

Environmental Specifications

• Operating Temperature: -55 to +232 degrees Celsius
• Ingress Protection: IP65 rated
• Housing Material: Stainless steel 304
• Cable Type: High-temperature fiberglass
• Mounting Torque: 25 ft-lbs maximum

Key Features

• Extended 2.75-inch thread for deep mounting applications
• High-temperature operation up to +232°C
• Long 15-foot integrated high-temperature cable
• IP65 protection against dust and water jets
• Robust 7/8-14 UNF thread for secure mounting
• Passive operation requires no external power

Industrial Applications

• High-temperature motor monitoring systems
• Industrial furnace and oven equipment
• Steel mill rolling machinery
• Glass manufacturing equipment
• Chemical reactor monitoring
• Power plant turbine systems
• Industrial dryer applications

Installation Guide

• Mount sensor using 7/8-14 UNF threaded connection
• Apply maximum 25 ft-lbs mounting torque
• Maintain 0.2-1.0mm gap from target surface
• Connect white lead as positive terminal
• Ensure proper IP65 seal engagement
• Route 15-foot cable away from heat sources
• Verify output signal with appropriate test equipment

Compatibility Information

• Works with high-temperature monitoring systems
• Compatible with industrial PLC systems
• Connects to speed monitoring displays
• Interfaces with predictive maintenance systems
• Works with overspeed protection devices

Shipping & Packaging

• Factory original protective packaging
• Includes sensor with 15-foot integrated cable
• Installation and torque specifications included
• 12-month warranty documentation provided
• Worldwide shipping via FedEx, UPS, DHL
• Fast delivery options available

Frequently Asked Questions

• What is the maximum operating temperature? +232 degrees Celsius continuous operation.
• What thread size does this sensor use? 7/8-14 UNF standard thread size.
• How long is the integrated cable? 15 feet (4.57 meters) high-temperature cable.
• Does this sensor require external power? No, it is passive and self-generating.
• What is the guaranteed output voltage? 9.4 volts peak to peak minimum output.