Description
Product Overview
This is the Bently Nevada 74712-06-12-04-CN two-wire transducer. It is a high-performance vibration sensor. The special isolated base gives you cleaner measurements. The side connector makes installation simple. This sensor is built to last in tough plant conditions.
Main Features & Benefits
- Clean Signal Isolation: Isolated base blocks false vibrations from the mount.
- Convenient Side Cable: Side-exit connector for easy wiring in tight spots.
- Starts at Zero Speed: Measures from 0 Hz for very slow machines.
- Built for Harsh Conditions: Reliable in wide temperature ranges.
- Common Mount Size: Fits standard 1/2″-20 UNF threaded holes.
- Local Approvals: Meets specific country (CN) standards and rules.
- Easy Connection: Simple two-wire 4-20mA hookup to your system.
Complete Technical Specifications
Product Identification
- Brand: Bently Nevada
- Exact Model: 74712-06-12-04-CN
- Sensor Type: Two-Wire Vibration Velocity Transducer
- Series: 74712 Industrial Sensor Series
Electrical & Performance
- Output Type: 4-20 mA loop-powered signal.
- Useful Frequency: 0 to 100 Hz (0 to 6,000 RPM).
- Measurement Span: Up to 1.0 inch per second peak.
- Sensitivity: Approximately 500 mV per inch/second.
- Accuracy: Within ±2% of the true reading.
- Supply Voltage: 12-30 VDC from your loop.
- Response Shape: Flat response across its frequency range.
Mechanical Details
- Base Type: Circular with vibration isolation.
- Mounting Thread: 1/2 inch – 20 UNF.
- Cable Exit: From the side of the sensor housing.
- Body Material: Stainless Steel.
- Isolation Ring: Special rubber to dampen noise.
- Sensor Weight: About 0.5 kilograms (1.1 pounds).
Environmental & Compliance
- Temp Range (Operating): -40°F to +248°F (-40°C to +120°C).
- Temp Range (Storage): -58°F to +302°F (-50°C to +150°C).
- Weather Protection: IP67 (Dust-tight and submersible).
- Shock Survival: Withstands 100g mechanical shock.
- Certifications: Holds country-specific (CN) agency approvals.
- Made In: United States of America.
Warranty & Shipping
We provide a full 12-month product warranty. We ship fast worldwide via FedEx, UPS, and DHL. You will receive a tracking number once your order is on its way.
Frequently Asked Questions
General Questions
When should I use an isolated base sensor?
Use it when your machine surface itself vibrates a lot. The isolation stops these “casing vibrations” from affecting your shaft or bearing measurement. It gives you truer data.
Can I get a certificate for this product?
Yes. A Certificate of Origin and Conformance is available for the 74712-06-12-04-CN. Please request it from our sales team with your order.
Installation & Tips
How do I mount the sensor correctly?
Screw the 1/2″-20 stud into a clean, tapped hole. Tighten it firmly with a wrench. Ensure the side cable exit points in a safe direction for the wire.
The output is a steady 20 mA. Does this mean the machine is shaking violently?
Not necessarily. A constant 20 mA often indicates a fault. Check for a short circuit in the wiring or a damaged sensor. Verify the machine is actually running.
Buying Advice
My project requires official country approvals. Is this model suitable?
Yes. The 74712-06-12-04-CN variant is designed and certified for specific market approvals. Confirm with our team that the “CN” code matches your project’s country requirements.
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