200150-12-05 | Bently Nevada 100 mV/g General Purpose Accelerometer

Introduction to the Bently Nevada 200150-12-05 Accelerometer

When reliable vibration monitoring is critical for rotating machinery, the 200150-12-05 from Bently Nevada provides accurate data for predictive maintenance. This general purpose accelerometer is part of the Trendmaster 2000 and Trendmaster Pro families, designed for continuous condition monitoring in industrial environments. With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures subtle vibration changes that signal developing faults.

The 200150-12-05 features a ceramic shear sensing element housed in 316L stainless steel, ensuring durability in harsh conditions. Its hermetic sealing (5×10⁻⁸ atm•cc/s maximum) protects against moisture and contaminants, making it suitable for 100% relative humidity environments. This accelerometer operates over a wide temperature range from -40 °C to +105 °C, covering most industrial applications.

Core Specifications and Performance Metrics

The 200150-12-05 offers a measurement range of ±245 m/s² (±25 g), with a frequency response of 10 to 1000 Hz (600 to 60,000 cpm). Its mounted resonant frequency exceeds 20 kHz, ensuring accurate readings across the operating band. Amplitude linearity is within ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%, minimizing cross-axis errors.

• Sensitivity: 10.2 mV/(m/s²) ±12% at 80 Hz (100 mV/g)
• Measurement Range: ±245 m/s² (±25 g)
• Frequency Range: 10 to 1000 Hz (600 to 60,000 cpm)
• Excitation Voltage: 4.7 to 5.5 Vdc
• Quiescent Current: <800 µA
• Output Bias Voltage: +2.5 ± 0.23 Vdc
• Settling Time: ≤300 ms (within 5% of bias)
• Axial Shock Limit: 49,050 m/s² pk (5,000 g pk)

A distinctive feature is the settling time of ≤300 ms, which allows the sensor to stabilize quickly after power-up, reducing downtime during installation or system restarts. This is particularly valuable in applications where rapid readiness is essential.

Applications and Use Cases

The 200150-12-05 is ideal for monitoring pumps, fans, compressors, and motors in industries such as oil and gas, power generation, and manufacturing. Its general-purpose design suits both Trendmaster 2000 and Trendmaster Pro systems, enabling seamless integration into existing Bently Nevada monitoring networks. For example, in a refinery, this accelerometer can detect early bearing wear in cooling tower fans, preventing unplanned outages and reducing maintenance costs.

Because the sensor operates reliably in condensing humidity and over a broad temperature range, it performs well in outdoor or washdown environments. The 316L stainless steel construction resists corrosion, extending service life in chemical or marine settings.

Installation and Setup

Mounting the 200150-12-05 requires a 3/8-24 female thread and a torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The included mounting stud option (3/8-24 to 1/4-20 UNC, 3/4 inch hex stud) simplifies attachment to standard machine surfaces. Ensure the mounting surface is clean and flat to achieve optimal frequency response. After installation, allow 24 hours cure time for the sensor to stabilize before taking critical measurements.

Excitation voltage must be between 4.7 and 5.5 Vdc, with the signal positive (SIG+) referenced to SIG-. Verify that the quiescent current remains below 800 µA to confirm proper operation. For best results, follow the manufacturer's guidelines for cable routing and grounding to avoid noise interference.

Maintenance and Reliability

Regular inspection of the 200150-12-05 and its cabling helps ensure consistent performance. Check for physical damage, corrosion, or loose connections, especially in high-vibration or corrosive environments. The hermetic seal minimizes moisture ingress, but periodic verification of output bias voltage and sensitivity can detect drift early. By incorporating this accelerometer into a routine condition monitoring program, facilities can extend equipment life and reduce unexpected failures, aligning with a cost-benefit approach to maintenance.

Frequently Asked Questions

Q: What is the sensitivity of the 200150-12-05 accelerometer?

A: The sensitivity is 10.2 mV/(m/s²) ±12% at 80 Hz, equivalent to 100 mV/g.

Q: What is the operating temperature range for the 200150-12-05?

A: The accelerometer operates from -40 °C to +105 °C (-40 °F to +221 °F).

Q: What mounting thread does the 200150-12-05 use?

A: It uses a 3/8-24 female thread, with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf).

Q: Is the 200150-12-05 suitable for hazardous area installations?

A: Yes, the -05 approval option includes multiple certifications: CSA, ATEX, and IECEx. Verify specific area classification with your safety engineer.

Q: What is the settling time of the 200150-12-05?

A: The settling time is ≤300 ms to within 5% of the output bias voltage.

Product Support and Availability

The 200150-12-05 is available from Petro Auto Tech, an industrial automation parts supplier. Please verify current lifecycle status and availability with our team before ordering. We offer fast shipping and dedicated support to help you integrate this accelerometer into your monitoring system.