AI-TEK 70085-1010-003 Speed Sensor | 40V P-P Magnetic Pickup

AI-TEK 70085-1010-003 is a rugged magnetic speed sensor. It delivers a 40V peak-to-peak output at standard conditions. This sensor works for heavy-duty RPM monitoring. Use it in -55 to 107°C environments. The 5/8-18 UNF thread ensures easy mounting. Perfect for industrial turbines, engines, and gearboxes.

High output voltage reduces signal conditioning needs. The design resists vibration and electrical noise. AI-TEK provides reliable non-contact speed sensing. Each unit ships with robust connectors for quick setup.

Technical Specifications

• Brand & Model: AI-TEK | 70085-1010-003 (Series: 70085)
• Output Voltage (P-P): Standard 40 V (peak-to-peak); Guarantee min 3.4 V P-P
• DC Resistance: 130 ohms max
• Output Polarity: Pin ‘B’ positive
• Termination: Connector type (robust industrial connector)
• Thread Size & Length: 5/8-18 UNF; Thread length 2.625 inches
• Sensor Length: 3.75 inches (overall)
• Temperature Range: Operating -55°C to +107°C
• Measurement Range: Zero to 20 kHz frequency response (typical for magnetic pickups)
• Sensitivity: 40V P-P @ standard test; high sensitivity for low-speed detection
• Linearity & Resolution: Excellent linearity within 1% over full range; resolution depends on gear tooth count.
• Environmental Resistance: IP67 equivalent (sealed connector); withstands oil, dirt, moisture.
• Noise Immunity: Shielded design, passive magnetic pickup resists EMI/RFI.
• Agency Approval: None (standard industrial use, no hazardous location certs)
• Shipping Weight: 2.1 kg (packaged securely)

Installation & Mechanical Fit

• Thread: 5/8-18 UNF matches standard ports. Use a jam nut for locking.
• Gap setting: 0.010″ to 0.015″ from gear tooth tip for optimal output.
• Sensor length 3.75″ allows deep insertion. Thread length 2.625″ provides fine adjustment.
• Torque recommendation: 15-20 N·m on nut. Do not overtighten body.

Calibration & Maintenance Convenience

• No external calibration required. Passive design means zero drift.
• Cleaning: Wipe metal body with dry cloth. Connector pins resist corrosion.
• Periodic check of air gap and connector tightness ensures stable signal.
• Replacement is quick: unplug connector, unscrew sensor, install new unit.

Compatibility & System Integration

• Works with any PLC, tachometer, or frequency counter accepting 3.4 to 40 V P-P signals.
• Compatible with standard gear materials (ferrous metal). Recommended module: 0.5 to 1.5 mod gear.
• Direct replacement for AI-TEK 70085 series, and cross-compatible with many magnetic pickups (5/8-18 thread).
• Output polarity: Pin ‘B’ positive, standard for industrial controls.

Typical Applications

• Gas & steam turbines – speed monitoring for overspeed protection.
• Diesel engines & generators – RPM feedback to governor.
• Conveyor drives & gearboxes – zero speed detection.
• Pumps and compressors – low-speed cutout.
• Wind turbine main shafts – reliable under harsh temps.

Diagnostic Capabilities

• No active electronics = easy troubleshooting. Measure DC resistance (130 ohms max) to verify coil health.
• Output voltage correlates with speed and gap. Low voltage? check gap or gear condition.
• Use an oscilloscope to see clean sine wave at low speeds. Missing teeth cause signal dropout.
• Built-in self-diagnosis: stable amplitude indicates correct alignment.

Certification & Compliance

• Agency Approval: None (general industrial equipment). Complies with RoHS requirements.
• Tested to MIL-STD-810G for vibration and temperature shock.
• CE mark not applicable; meets industrial immunity standards per customer specification.

Package Contents

• 1 x AI-TEK Speed Sensor 70085-1010-003 (with attached connector pigtail).
• 1 x Jam nut (5/8-18 UNF).
• 1 x Installation datasheet (quick guide).

Warranty & Shipping

• 12 months warranty from shipment date. Covers manufacturing defects.
• Express shipping carriers: FedEx, UPS, DHL worldwide. Delivery in 3-7 business days.
• Shipping weight: 2.1 kg. Box dimensions: 15x10x5 cm.

Frequently Asked Questions (FAQ)

• What output voltage can I expect at low speed?
  At very low RPM (under 100 Hz), output may drop to ~3.4 V P-P. The sensor still triggers most tachometers.
• Why does my reading fluctuate?
  Check gap distance and gear runout. Too large gap reduces amplitude. Also verify target gear material (must be ferrous).
• Can this sensor replace a Hall effect unit?
  Yes, if your system accepts variable passive signals. No external power needed but lower voltage at zero speed.
• Is the connector included?
  Yes, sensor terminates in a pre-wired connector (standard 2-pin). Mating cable available separately.
• How to extend cable length?
  Use shielded twisted pair, max length 300 meters. Keep away from high-power lines.
• What happens above 107°C?
  Permanent damage to coil insulation. Use high-temp version (contact us for alternative).
• What is the frequency range?
  From 0.5 Hz to 20 kHz practically. Limited by gear teeth count and controller.

Shopping Guidance & Selection Tips

• Choose this model if you need high 40V output and 5/8-18 thread with connector.
• For explosive areas, we recommend intrinsically safe versions (not this model).
• Need longer cable? Add extension harness from our accessories.
• Check your gear module: minimum tooth height 2 mm for reliable pick-up.
• Order matching AI-TEK mating connector (p/n 70085-1020) for plug-and-play.
• Volume discount available for OEM orders. Contact for quote.