177230-02-01-05 | Bently Nevada Seismic Transmitter

Introduction to the Bently Nevada 177230-02-01-05

When reliable vibration monitoring is critical, the 177230-02-01-05 from Bently Nevada provides a robust solution. This seismic transmitter converts dynamic acceleration into a standard 4-20 mA current loop signal, making it ideal for integration with PLCs, DCS, and SCADA systems. With its rugged 316L stainless steel construction and hermetically sealed sensor, it is built for demanding environments.

Key Features and Technical Specifications

The 177230-02-01-05 offers several features that enhance its performance and usability:

• Measurement range: 0 to 50.8 mm/s (0 to 2.0 in/s) RMS
• Frequency response: 10 Hz to 1 kHz (600 to 60 kcpm) RMS
• Output signal: 4-20 mA current loop (Pin A to Pin B)
• Excitation voltage: 12 to 30 Vdc (current limited to 40 mA)
• Settling time: less than 15 seconds within 2% of final value
• Mounted resonant frequency: greater than 12 kHz
• Transverse sensitivity: less than 5% of sensitivity
• Case material: 316L stainless steel
• Connector: 3-pin MIL-C-5015, 316L stainless steel
• Mounting hole: 1/4-28 UNF
• Weight: 0.131 kg (4.62 oz)

One distinctive feature is the hermetically sealed sensor, which protects against moisture and contamination, ensuring long-term stability in harsh conditions.

Applications and Use Cases

The 177230-02-01-05 is suitable for machinery health monitoring in industries such as manufacturing, power generation, and oil and gas. It provides continuous vibration data that helps detect imbalance, misalignment, and bearing wear early. Consequently, maintenance teams can schedule repairs proactively, reducing unplanned downtime and extending equipment life.

Installation and Mounting

Proper installation is essential for accurate readings. The transmitter mounts via a 1/4-28 UNF hole or M6 x 1 SI / M8 x 1.25 SI threads. Recommended mounting torque is 4 to 7 N-m (35.4 to 62.0 in-lbf). Ensure the mounting surface is clean and flat to achieve optimal coupling. Wiring follows the connector convention: Pin A for 4-20 mA positive loop, Pin B for loop return, and Pin C for dynamic acceleration signal.

Maintenance and Reliability

Routine inspection of the mounting integrity and connector condition is recommended. Because the sensor is hermetically sealed, it requires minimal maintenance. Periodically verify the output signal against a known reference to confirm accuracy. The operating temperature range of -40°C to +85°C (-40°F to +185°F) allows use in extreme environments.

Compatibility and Integration

This transmitter is designed for use with PLCs, DCS, and SCADA systems that have internal power supplies typically current limited to 30-35 mA. The 4-20 mA loop output simplifies integration with standard analog input modules. The dynamic acceleration signal on Pin C provides additional diagnostic capability.

Buyer's Guide: Evaluating the 177230-02-01-05

When selecting a seismic transmitter, consider the measurement range, frequency response, and output signal compatibility. The 177230-02-01-05 offers a wide range and robust construction, making it a reliable choice. Its approvals include CSA/NRTL/C and ATEX/IECEx, ensuring suitability for hazardous areas. Always verify that your system's power supply meets the excitation voltage requirement of 12 to 30 Vdc.

Frequently Asked Questions

What is the output signal of the 177230-02-01-05?

The output is a 4-20 mA current loop from Pin A to Pin B, proportional to the peak vibration levels.

What is the measurement range?

The measurement range is 0 to 50.8 mm/s (0 to 2.0 in/s) RMS.

What are the mounting options?

It can be mounted using a 1/4-28 UNF hole or M6 x 1 SI / M8 x 1.25 SI threads with a recommended torque of 4 to 7 N-m.

Is the sensor suitable for harsh environments?

Yes, it is hermetically sealed and made of 316L stainless steel, with an operating temperature range of -40°C to +85°C.

Availability and Support

The 177230-02-01-05 is available from Petro Auto Tech. Contact our team for current stock and pricing. We are here to help you find the right vibration monitoring solution for your application.