990-08-70-02-01 Vibration Sensor Installation & Monitoring
Product Introduction
The Bently Nevada 990-08-70-02-01 is a high-performance proximity transducer. This sensor excels in critical machinery protection. It accurately measures vibration and position. The system provides a direct 4-20 mA output. This output corresponds to the target gap. This feature simplifies integration with PLCs and DCS. Many engineers prefer the 990 series for its reliability. It is a standard choice in the power generation and oil and gas industries.
Core Value
The primary value of the 990-08-70-02-01 is its superior reliability. It minimizes unplanned downtime effectively. This safety barrier helps protect expensive assets like turbines. Consequently, it reduces maintenance costs significantly. The sensor offers a simple, direct replacement option. It is perfect for retrofitting older systems. Its design ensures stable operation in harsh environments. Furthermore, the sealed construction prevents contamination. This robustness extends the sensor's service life.
Technical Insights
The Bently Nevada 990-08-70-02-01 operates on the eddy-current principle. It provides a linear output over its specific range. The target material is 4140 steel. Calibration ensures high measurement accuracy. The system offers a gap of 0.8 mm to 2.2 mm. It features a side-exit cable for flexible routing. The cable also includes a metal braid for protection. Shielded wiring prevents electrical noise interference. This design ensures a clear, stable signal. Therefore, the data integrity is always maintained.
Installation & Maintenance
Proper installation is key for the 990-08-70-02-01. First, clean the mounting surface thoroughly. Debris can affect the gap reading. Torque the probe to the specified value. Then, adjust the gap to the nominal setting. Use the recommended extension cable. This cable is part of the system. It must be a Bently Nevada approved cable. The total system length is calibrated precisely. Regular visual inspections are recommended. Check the cable for damage. Ensure the mounting bracket stays tight. This practice prevents false readings.
Buyer's Guide FAQ
Q: What is the output signal of the 990-08-70-02-01?
A: It provides a 4-20 mA output signal.
Q: Which target material is used for calibration?
A: The sensor is calibrated for 4140 steel.
Q: What is the sensing range for this sensor?
A: The linear range is generally 0.8 mm to 2.2 mm.
Q: Can I extend the cable on the Bently Nevada 990-08-70-02-01?
A: Yes, but use the specified Bently Nevada extension cable only.
Q: What is the primary use for this transducer?
A: It monitors vibration on turbines and compressors.
