200350-09-00-00 | Bently Nevada 100 mV/g Accelerometer

Introduction to the 200350-09-00-00

When critical rotating machinery begins to show signs of excessive vibration, engineers need a sensor that provides accurate, repeatable data. The 200350-09-00-00 from Bently Nevada is a 100 mV/g accelerometer designed for such demanding applications. This sensor, part of the 200350 series, offers a measurement range of ±50 g and a frequency response from 0.5 to 10,000 Hz. Its robust construction includes a stainless steel housing and a welded hermetic seal, ensuring reliable performance in harsh industrial environments.

Key Features & Technical Specs

• Sensitivity: 100 mV/g ±20% (10.2 mV/m/s² ±20%)
• Frequency Range: 30–600,000 cpm (0.5–10,000 Hz) ±3 dB
• Measurement Range: ±50 g
• Output Bias Voltage: 8 to 12 VDC
• Excitation Voltage: 18 to 28 VDC
• Constant Current Excitation: 2 to 20 mA
• Operating Temperature: -65°F to +250°F (-54°C to +121°C)
• Enclosure Rating: IP68
• Housing Material: Stainless Steel
• Sealing: Welded Hermetic

A distinctive spec is the broadband electrical noise of only 350 μg (3,434 μm/s²) from 1 to 10 kHz. This low noise floor allows the accelerometer to detect subtle vibration changes, improving early fault detection in bearings and gears.

Real-World Applications

In predictive maintenance programs, the 200350-09-00-00 excels at monitoring pumps, compressors, fans, and motors. Its wide frequency range covers both low-speed and high-speed machinery. For example, in a petrochemical plant, this sensor can detect imbalance or misalignment in a centrifugal compressor before catastrophic failure occurs. The IP68 rating makes it suitable for washdown environments or outdoor installations where moisture is present.

Installation & Setup

Mounting the 200350-09-00-00 requires a 1/4-28 female thread and a torque of 2 to 5 ft-lb (2.7 to 6.8 N-m). The sensor has a top-mounted 2-pin Mil-C-5015 electrical connector. Ensure the mounting surface is clean and flat for optimal frequency response. The settling time is 2.0 seconds within 1% of bias, so allow a brief stabilization period after power-up before taking measurements.

Routine Care & Reliability

Regular inspection of the cable and connector is recommended to maintain signal integrity. The welded hermetic seal and stainless steel construction provide excellent resistance to corrosion and moisture. Although the sensor can withstand 5,000 g shock, avoid dropping or impacting the unit during installation. Periodic verification of the output bias voltage (8–12 VDC) can confirm proper operation.

Compatibility & Integration

This accelerometer works with any data acquisition system that supplies constant current excitation between 2 and 20 mA and accepts a 100 mV/g sensitivity input. It is commonly used with Bently Nevada monitoring systems but also integrates with third-party vibration analyzers and PLCs. The output impedance is less than 150 ohms, ensuring compatibility with most analog input modules.

Common Questions About the 200350-09-00-00

Q: What is the sensitivity of the 200350-09-00-00?

A: The sensitivity is 100 mV/g ±20% (10.2 mV/m/s² ±20%).

Q: What is the operating temperature range?

A: The sensor operates from -65°F to +250°F (-54°C to +121°C).

Q: Is the 200350-09-00-00 suitable for wet environments?

A: Yes, it has an IP68 enclosure rating and a welded hermetic seal, making it suitable for condensing humidity and temporary submersion.

Q: What mounting thread does it use?

A: It uses a 1/4-28 female mounting thread with a recommended torque of 2 to 5 ft-lb (2.7 to 6.8 N-m).

Q: What is the output bias voltage range?

A: The output bias voltage is 8 to 12 VDC.

Product Support & Availability

The 200350-09-00-00 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time. We provide fast, reliable service for industrial automation parts.