200155-01-05 | Bently Nevada 10.2 mV/(m/s²) Low Frequency Accelerometer

What Is the 200155-01-05?

When slow rotating shafts or fin-fan applications demand accurate vibration data, the 200155-01-05 from Bently Nevada provides a reliable solution. This low frequency Trendmaster Pro accelerometer measures acceleration with a sensitivity of 10.2 mV/(m/s²) at 80 Hz. Its robust design supports continuous monitoring in harsh industrial environments.

As part of the Trendmaster Pro family, the 200155-01-05 is engineered for low frequency acceleration-to-velocity channel types. It operates with an excitation voltage of 4.7 to 5.5 Vdc and delivers an output bias voltage of +2.5 ± 0.23 Vdc. This makes it ideal for predictive maintenance programs.

Key Features & Technical Specs

• Sensitivity: 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, ±12%.
• Measurement Range: ±196 m/s² (±20 g).
• Frequency Range: 1.5 to 10,000 Hz (90 to 600,000 cpm), ±10% referenced to 80 Hz.
• Mounted Resonant Frequency: >20 kHz (>1200 kcpm).
• Amplitude Linearity: ±2% from 1 to 10 g pk.
• Transverse Sensitivity: ≤7%.
• Settling Time: ≤2000 ms (within 5% of bias).
• Excitation Voltage: 4.7 to 5.5 Vdc.
• Quiescent Current: <800 µA.
• Output Bias Voltage: +2.5 ± 0.23 Vdc.
• Axial Shock Limit: 49,050 m/s² pk (5,000 g pk).
• Temperature Range: -40 ºC to +105 ºC (-40 ºF to +221 ºF).
• Sealing: Hermetic, 5x10⁻⁸ atm•cc/s maximum.
• Relative Humidity: 100% relative, condensing, non-submerged.
• Size: 17.5 mm hex x 45.7 mm height (11/16 in x 1.8 in).
• Weight: 58 g (2.0 oz), typical.
• Mounting Thread: 3/8-24 female.
• Mounting Torque: 2.7 to 6.8 N•m (2 to 5 ft•lbf).
• Sensing Element: Ceramic, shear geometry.
• Housing Material: 316L stainless steel.

These specs ensure the 200155-01-05 delivers consistent performance in demanding conditions. The ceramic shear sensing element provides excellent stability over time.

Applications & Use Cases

Maintenance engineers often face challenges with low speed machinery, where standard accelerometers fail to capture accurate vibration data. The 200155-01-05 excels in fin-fan and slow rotating shaft applications. Its low frequency range down to 1.5 Hz makes it suitable for cooling tower fans, large diameter bearings, and other slow speed equipment. Additionally, its hermetic sealing and wide temperature range allow deployment in outdoor or high humidity environments.

Installation Guide

Mount the 200155-01-05 using the 3/8-24 female thread with a torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). Ensure the mounting surface is clean and flat for optimal coupling. The accelerometer comes with two adhesive mount frames and adhesive for flexible installation options. Allow 24 hours cure time for adhesive mounts before operation. Connect the SIG+ and SIG- leads with correct polarity: SIG+ positive with respect to SIG-.

Maintenance & Reliability

Routine inspection of the 200155-01-05 helps maintain measurement accuracy. Check the mounting integrity and cable connections periodically. The 316L stainless steel housing resists corrosion, while the hermetic seal prevents moisture ingress. For long-term reliability, verify that the excitation voltage stays within 4.7 to 5.5 Vdc and that the output bias voltage remains at +2.5 ± 0.23 Vdc. Replace the accelerometer if the sensitivity drifts beyond ±12%.

Compatibility & Integration

The 200155-01-05 works with ProTIM option low frequency acceleration-to-velocity channel types. It integrates seamlessly into Bently Nevada monitoring systems. For detailed compatibility with specific data acquisition units, refer to the official Bently Nevada documentation or contact Petro Auto Tech.

FAQs about the 200155-01-05

Q: What is the sensitivity of the 200155-01-05?

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

Q: What is the measurement range of this accelerometer?

A: The measurement range is ±196 m/s² (±20 g) for acceleration, and 24.5 mm/s² (2.5 mg) for low range.

Q: What is the operating temperature range?

A: The temperature range is -40 ºC to +105 ºC (-40 ºF to +221 ºF).

Q: How long is the settling time?

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

Q: What approvals does the 200155-01-05 have?

A: It has multiple approvals: CSA, ATEX, and IECEx.

Product Support & Availability

The 200155-01-05 is available from Petro Auto Tech. In stock and ready to ship, this accelerometer supports your predictive maintenance needs. Contact Petro Auto Tech for current lifecycle status and ordering information.