AI-TEK 70085-3030-113 Speed Sensor | 13.4V P-P | -65°C to 95°C

• AI-TEK 70085-3030-113 is a rugged speed sensor.
• Thread size 5/8-18 UNF for secure mounting. Thread length 4 inches.
• Output guarantee voltage: 13.4 V (peak-to-peak). Works in extreme temps: -65°C to 95°C.
• Total sensor length 5.25 inches. Includes 3m cable with 1/2 NPT conduit thread.
• Built for industrial automation, turbines, conveyors, and heavy machinery.

Technical Specifications

• Brand & Model
  • Brand: AI-TEK
  • Part Number: 70085-3030-113
  • Series: 70085 high-reliability series
• Electrical Characteristics
  • Output (P-P): 13.4 V guaranteed
  • Frequency response: 0 Hz to 20 kHz (typical passive magnetic)
  • Sensitivity: High-output variable reluctance design
  • Linearity: Excellent across full range, ≤ ±1%
  • Resolution: Detects zero speed to high RPM
• Mechanical Features
  • Thread size: 5/8-18 UNF
  • Thread length: 4 inches (101.6 mm)
  • Sensor length: 5.25 inches (133.35 mm)
  • Termination: Cable output (3 meters)
  • Conduit thread: 1/2 NPT for easy wiring protection
• Environmental & Durability
  • Temperature range: -65°C to 95°C
  • Environment tolerance: Resists oil, dust, moisture
  • EMI / RFI immunity: Passive design, no active electronics needed
  • Agency approval: None (intended for OEM/custom builds)
• Performance Reliability
  • Measurement range: 0 to 20,000 Hz (gear tooth dependent)
  • Interference rejection: Magnetic pick-up avoids external noise
  • No external power supply required – self-generating

Installation Guide

• Clean the mounting hole before installing the 5/8-18 thread sensor.
• Hand-tighten then torque to 15-20 Nm. Do not overtighten.
• Set air gap between sensor tip and gear: 0.25 mm to 0.76 mm.
• Use 1/2 NPT conduit to protect cable from abrasion or heat.
• Route cable away from high voltage lines to avoid signal noise.
• Test output voltage at low speed: should exceed 1 V P-P at 100 RPM.

Debugging & Maintenance Convenience

• Simple two-wire interface — easy to check continuity.
• No calibration needed. Built tough for long life.
• Check tip for metal debris or damage every 6 months.
• Clean sensor face gently with a soft cloth and isopropyl alcohol.
• Loose cable? Verify 1/2 NPT fitting is tight to avoid movement.
• For zero output, measure resistance: coil should read 200-1500 ohms.

Compatibility Information

• Works with most PLCs (Siemens, Rockwell, Mitsubishi) using analog inputs.
• Compatible with frequency-to-voltage converters and counters.
• Matches standard ferrous gears: 8 to 200 teeth, module 1 to 4.
• Direct replacement for many 5/8-18 sensors on industrial motors.
• No special controller needed — outputs pure AC sine wave signal.

Certification & Warranty

• Agency approval: None (suitable for non-hazardous industrial sites).
• Warranty: 12 months from invoice date against defects.
• Covers material and workmanship. Excludes misuse or improper installation.
• Return procedure: contact support for RMA number.

Package & Shipping Options

• Each sensor comes in anti-static bubble wrap + carton box.
• Package includes: 1x AI-TEK 70085-3030-113 sensor with 3m cable.
• Also includes: quick start guide and air gap tool card.
• Express courier options: FedEx, UPS, DHL worldwide.
• Shipping time: 2-5 business days for most regions.
• Track your order via email within 24 hours of dispatch.

Typical Applications & Diagnostics

• Speed monitoring on conveyor motors, pumps, fans, and mixers.
• Over-speed detection on turbines and compressors.
• Zero-speed switch for emergency stops in heavy industry.
• Diagnostic capability: detects missing teeth, shaft stall, or rotation direction.
• Built-in self-check: output amplitude changes with speed variation.
• Use oscilloscope to view waveform shape — clean sine wave confirms health.

Frequently Asked Questions (FAQ)

• • Q: Does this sensor need external power?
  • A: No. AI-TEK 70085-3030-113 is passive magnetic. It self-generates voltage.
  • Q: What is the minimum detectable speed?
  • A: At 100 RPM with 60-tooth gear, output > 1 V P-P. Very low speed detection.
  • Q: Can I use this in wet environments?
  • A: Yes. Rated -65°C to 95°C. Sealed cable and thread provide moisture resistance.
  • Q: Why is output voltage lower than expected?
  • A: Check air gap or gear surface. Larger gap reduces voltage. Adjust to <0.5 mm.
  • Q: How long is the cable? Can I extend it?
  • A: 3 meters standard. Extend with shielded cable up to 30 meters without signal loss.
  • Q: Is there a specific orientation for mounting?
  • A: No direction restriction. Mount perpendicular to gear teeth for best signal.
  • Q: Does it come with mounting accessories?
  • A: Sold as sensor only. Use customer-supplied locknut for 5/8-18 thread.

• • Q: From your experience, what is the most common installation mistake?
  • A: Setting air gap too wide. We recommend 0.3 mm for best signal reliability.
  • Q: Can this sensor replace Allen-Bradley 8720 or similar?
  • A: Often yes. Check thread size 5/8-18 and output type. Works for many magnetic pickups.

• Buyer’s guide tip: Verify your gear module and thread spec before ordering.
• For high vibration areas, use lock washer and flexible conduit to protect cable.
• If you need agency approvals (ATEX/IECEx), consider other models. This has none.
• Large orders: contact for bulk discount and fast FedEx priority shipping.
• Need custom cable length? Request quotation before purchase.

Need Help? Contact Our Engineers

• For technical support or volume pricing, reach out via WhatsApp.
• Click to chat: +86 158 8020 0923 (Direct WhatsApp link)
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