177230-02-01-05 | Bently Nevada Seismic Transmitter 0-50.8 mm/s

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

When machinery vibration threatens uptime, the 177230-02-01-05 from Bently Nevada provides a dependable solution. This seismic transmitter converts vibration into a standard 4-20 mA signal, enabling seamless integration with PLCs, DCS, and SCADA systems. Built for harsh conditions, it offers accurate, real-time data to support predictive maintenance strategies.

Key Features and Technical Specifications

The 177230-02-01-05 is engineered for precision and durability. Its key specifications include:

• 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 to 20 mA current loop
• Excitation voltage: 12 to 30 Vdc (current limited to 40 mA)
• Operating temperature: -40°C to +85°C (-40°F to +185°F)
• 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 contaminants, ensuring long-term reliability even in 100% non-submerged humidity conditions.

Applications and Use Cases

The 177230-02-01-05 is ideal for monitoring rotating machinery such as pumps, fans, and motors. Its 4-20 mA output simplifies integration with existing control systems, allowing continuous vibration tracking without specialized equipment. For example, in a manufacturing plant, this transmitter can detect early bearing wear, enabling timely maintenance and avoiding costly unplanned downtime. Its robust design also suits outdoor installations where temperature extremes and moisture are common.

Installation and Setup

Proper installation ensures accurate readings. Mount the transmitter using the 1/4-28 UNF hole or M6 x 1 SI / M8 x 1.25 SI threads, applying a mounting torque of 4 to 7 N-m (35.4 to 62.0 in-lbf). Connect Pin A to the 4-20 mA positive loop and Pin B to the loop return; Pin C provides a dynamic acceleration signal. Ensure the excitation voltage is within 12 to 30 Vdc and that the loop is current-limited to 40 mA. Allow a settling time of less than 15 seconds before taking critical measurements.

Maintenance and Reliability

Routine inspection is key to long service life. Periodically check the connector and mounting integrity to prevent loosening. The 316L stainless steel case and hermetically sealed sensor resist corrosion and moisture, reducing maintenance frequency. With a mounted resonant frequency greater than 12 kHz and transverse sensitivity less than 5%, the transmitter maintains accuracy under challenging conditions. Regular verification of the output signal against a known reference ensures continued performance.

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. Its 4-20 mA output is universally accepted, making it easy to retrofit into existing monitoring loops. The dynamic signal on Pin C can be used for additional analysis if the host system supports it.

Common Questions About the 177230-02-01-05

What is the measurement range of the 177230-02-01-05?

The measurement range is 0 to 50.8 mm/s (0 to 2.0 in/s) RMS, covering typical vibration levels in industrial machinery.

How is the output signal configured?

The output is a 4-20 mA current loop on Pin A (positive) and Pin B (return). The sensitivity is 4 ± 0.3 mA at 0.0 mm/s and 20 ± 2 mA at full scale.

Can the transmitter withstand harsh environments?

Yes, it operates from -40°C to +85°C and is hermetically sealed, with a 316L stainless steel case and connector for corrosion resistance.

What approvals does the 177230-02-01-05 hold?

It has multiple approvals including CSA/NRTL/C and ATEX/IECEx, making it suitable for hazardous areas.

Product Support and Availability

The Bently Nevada 177230-02-01-05 is available through Petro Auto Tech. Contact our team for current stock and lead times. We are committed to helping you maintain reliable operations.