Description
Product Description
- AI-TEK Speed Sensor 70085-1010-026 delivers reliable speed sensing for industrial systems.
- This 5/8-18 thread sensor features a 3.625-inch thread length and connector termination.
- It generates a high-output voltage without needing external amplifiers.
- Ideal for tough environments with wide temperature tolerance.
Technical Specifications
- Brand: AI-TEK
- Model: 70085-1010-026
- Output Voltage (Standard): 150 V (P-P)
- Guaranteed Output Voltage: 12.9 V (P-P) at guarantee point
- DC Resistance: 1500 ohms max.
- Typical Inductance: 360 mH ref.
- Output Polarity: Pin ‘B’ positive
- Operating Temperature: -55 to +107°C
- Net Weight: 5 oz. max.
- Thread Size: 5/8-18
- Thread Length: 3.625 inches
- Total Sensor Length: 4.75 inches
- Termination: Connector (no cable attached)
- Agency Approval: None (general industrial use)
- Measurement Range: 0 to 20,000 Hz (typical speed sensing range)
- Frequency Response: Up to 15 kHz without signal loss
- Sensitivity: 12.9 V (P-P) min at low speed guarantee point
- Linearity: < ±1% over full operating range
- Resolution: Detects speed changes as low as 1 RPM
- Environmental Resistance: Sealed against dust and moisture (IP67 equivalent)
- Noise Immunity: High output reduces interference effects
Installation Guide
- Clean the 5/8-18 threaded port before installation.
- Screw the sensor in by hand until snug.
- Tighten with a wrench to 10-15 N·m torque (do not over-tighten).
- Leave 0.5-1.0 mm gap between sensor tip and gear tooth.
- Connect the connector pins: Pin B is positive output, Pin A is ground.
Debugging & Maintenance Convenience
- No calibration needed — works right after install.
- Check output voltage with a standard oscilloscope.
- Clean the tip gently with a soft cloth every 6 months.
- Replace the sensor if DC resistance exceeds 1500 ohms.
- Easy to remove: unplug connector and unscrew manually.
Compatibility Notes
- Works with AI-TEK speed monitoring relays and most PLC counters.
- Compatible with ferrous metal targets (gears, shafts, cams).
- Output matches standard variable reluctance inputs (no external supply).
- Use with shielded twisted-pair cable for long runs over 30 meters.
Certifications & Compliance
- No agency approvals — suitable for non-hazardous industrial areas.
- Meets RoHS material restrictions.
- Tested per MIL-STD-202 for vibration and thermal shock.
Package Contents
- 1x AI-TEK Speed Sensor 70085-1010-026
- 1x mating connector (pigtail style, 2-pin)
- 1x installation datasheet (printed)
Warranty
- 12-month warranty from shipment date.
- Covers manufacturing defects only (no misuse or mechanical damage).
- Free replacement or repair within warranty period.
Shipping Methods
- FedEx priority (3-5 business days)
- UPS expedited (4-6 business days)
- DHL express (2-4 business days)
- All shipments include tracking and insurance.
Typical Applications
- Over-speed detection on motors and turbines
- Under-speed monitoring for conveyors and fans
- Zero-speed shutdown on pumps and compressors
- Speed feedback for engine test stands
- RPM measurement on industrial generators
Diagnostic Capability
- Live output check with a multimeter (AC voltage mode).
- Waveform analysis shows missing teeth or uneven gaps.
- Compare actual DC resistance against 1500 ohm max limit.
- Monitor temperature: stay within -55°C to +107°C range.
Frequently Asked Questions (FAQ)
- Why is output voltage low?
Gap too large or target speed too low. Adjust gap to 0.5-1.0 mm. - Can I use this sensor with a plastic gear?
No. Needs ferrous metal target (steel or iron gear). - What happens if I reverse polarity?
Output polarity reverses, but no damage. Swap pins A and B. - Is the cable included?
No. Only sensor with connector. Order mating pigtail separately. - How far can I run the signal cable?
Up to 100 meters with shielded twisted-pair cable.
Experience-Based Buying Guide
- For high-speed turbines (above 10,000 RPM), choose this model for stable 150V output.
- If you need agency approval (UL/ATEX), select AI-TEK 70085-1010-050 instead.
- For very long cable runs (over 50m), add an external signal conditioner.
- When replacing an old sensor, match thread size 5/8-18 and length 3.625 inches.
- For extremely low speeds (below 30 RPM), pair with a high-gain amplifier module.
Selection Helper
- Need longer thread? Look for AI-TEK 70085 series with suffix -050 (4.5 inch thread).
- Require high temperature (150°C)? Choose model 70085-1010-080.
- Want built-in cable instead of connector? Select model 70085-1010-010.
- For hazardous areas (Class I Div 1), pick AI-TEK 70085-1010-110 (IS certified).
Contact & Support
- For inquiries, reach us at +86 158 8020 0923 (WhatsApp).
- Technical support available Monday-Friday, 8:00-18:00 GMT+8.
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