200155-08-05 | Bently Nevada 10.2 mV/(m/s²) Low Frequency Accelerometer

Introduction to the Bently Nevada 200155-08-05

When monitoring slow rotating shafts and fin-fan applications demands reliable low-frequency vibration data, the 200155-08-05 from Bently Nevada provides a robust solution. This Low Frequency Trendmaster Pro Accelerometer is engineered for industrial environments where accuracy and durability are critical.

Key Features and Technical Specifications

The 200155-08-05 offers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a measurement range of ±196 m/s² (±20 g). Its frequency range spans 1.5 to 10,000 Hz (90 to 600,000 cpm), making it ideal for low-speed machinery. Key specs include:

• Sensitivity: 10.2 mV/(m/s²) ±12% at 80 Hz
• Measurement Range: ±196 m/s² (±20 g)
• Frequency Range: 1.5 to 10,000 Hz (90 to 600,000 cpm)
• Mounted Resonant Frequency: >20 kHz
• Excitation Voltage: 4.7 to 5.5 Vdc
• Output Bias Voltage: +2.5 ± 0.23 Vdc
• Temperature Range: -40 °C to +105 °C
• Weight: 58 g (2.0 oz), typical

One standout feature is the low settling time of ≤2000 ms, ensuring quick stabilization after power-up for accurate readings.

Applications and Use Cases

Engineers rely on the 200155-08-05 for monitoring fin-fan coolers, slow rotating shafts, and other low-speed rotating equipment. Its low-frequency response down to 1.5 Hz captures subtle vibrations that standard accelerometers miss, helping prevent unplanned downtime. For example, in a fin-fan application, this accelerometer detects early bearing wear before failure occurs.

Installation and Setup

Mounting the 200155-08-05 requires a 3/8-24 female thread and a mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf). The 316L stainless steel housing ensures corrosion resistance in harsh environments. Use the provided mounting stud option (08: 3/8-24 to 1/2 NPT 1 inch hex stud) for secure attachment. Allow 24 hours cure time after installation for optimal performance.

Maintenance and Reliability

Regular inspection of the 200155-08-05 ensures long-term reliability. Check for physical damage or contamination on the connector. The hermetic sealing (5×10⁻⁸ atm·cc/s max) protects against moisture and dust, even in 100% condensing humidity. With proper care, this accelerometer delivers consistent data for years.

Compatibility and Integration

The 200155-08-05 works seamlessly with Bently Nevada ProTIM systems using the Low Frequency Acceleration-to-Velocity channel type (-05). Its multiple approvals (CSA, ATEX, IECEx) allow use in hazardous areas. For integration, verify the excitation voltage (4.7 to 5.5 Vdc) matches your monitoring system.

Frequently Asked Questions

Q: What is the sensitivity of the 200155-08-05?

A: The sensitivity is 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a tolerance of ±12%.

Q: What temperature range does this accelerometer support?

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

Q: Can the 200155-08-05 be used in hazardous locations?

A: Yes, it has multiple approvals including CSA, ATEX, and IECEx for use in classified areas.

Q: What is the mounting thread size?

A: The mounting thread is 3/8-24 female, with a recommended torque of 2.7 to 6.8 N·m.

Q: How long does it take for the accelerometer to settle after power-up?

A: The settling time is ≤2000 ms (within 5% of bias voltage).

Product Support and Availability

The 200155-08-05 is available from Petro Auto Tech. Please verify current lifecycle status and availability before ordering. Contact our team for pricing and lead times.