Description
AI-TEK 70085-1010-314 Speed Sensor
This AI-TEK 70085-1010-314 is a passive magnetic pickup sensor. It detects gear teeth or target movement without external power. Ideal for industrial speed monitoring systems.
Technical Specifications
- Brand: AI-TEK
- Model: 70085-1010-314
- Thread Size: .375 no thd
- Thread Length: 1.375 in (34.9 mm)
- Total Sensor Length: 1.375 in (34.9 mm)
- Output Voltage (Standard): 55 V (P-P)
- Output Voltage (Guarantee Point): 4.2 V (P-P)
- DC Resistance: 960 ohms max.
- Typical Inductance: 125 mH (reference)
- Output Polarity: White lead positive
- Operating Temperature: -30 to +85 °C
- Temperature Rating: -30 to 85 °C
- Lead Length (standard): 6 in (15.2 cm) – Code -004
- Cable Length (this model): 10 ft (3.05 m) – Code -314
- Termination: Cable (integral)
- Net Weight: 3 oz max. (85 g)
- Agency Approval: None (General purpose)
Construction & Compatibility
- Housing: Stainless steel body for harsh environments
- Mounting: Threaded .375 UNF-2A thread
- Gap Setting: Requires proper air gap (typically 0.002 to 0.006 inch)
- Compatibility: Works with most PLC counters, tachometers, and speed switches
- Target Material: Ferrous metal gear teeth or shaft keyways
Installation & Maintenance
- Installation: Screw sensor into mounting hole until it touches gear teeth, then back out 1/2 turn.
- Torque: Tighten locknut to 5-10 lb-in (do not overtighten).
- Maintenance: Periodically check air gap. Clean metal debris from sensor tip.
- Diagnosis: Use an oscilloscope to verify output voltage. No output means open coil or wrong gap.
Typical Applications
- Speed monitoring on pumps, fans, and conveyors
- Over-speed or under-speed shutdown systems
- Engine RPM sensing on generators and compressors
- Direction detection (with dual sensor setup)
Packaging & Warranty
- Each sensor comes in anti-static bag with foam protection.
- Warranty: 12 months against manufacturing defects.
- Shipping: FedEx, UPS, or DHL express (tracking provided).
Selection Guide & FAQ
- Q: Can this sensor work with a 24V DC input card?
A: No. The output is analog AC voltage. Use a signal conditioner or a dedicated magnetic pickup module.
- Q: What gear module should I use?
A: Use module 1 to 3 (DP 8 to 25). Finer teeth produce lower output voltage.
- Q: My sensor shows zero output. What is wrong?
A: Check the air gap first. Also test resistance across leads (should be ~960 ohms).
- Q: Can I cut the cable to a shorter length?
A: Yes, but it reduces output voltage slightly. Seal the cut end properly.
- Selection Tip: For high-temperature areas above 85°C, choose the AI-TEK 70085-1010-***-HT version.
- Selection Tip: For longer cable runs (>50 ft), add a preamplifier near the sensor.
Contact & Support
Need a quote or technical advice? Call us: +86 158 8020 0923 (WhatsApp).
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