177230-01-01-05 | Bently Nevada Seismic Transmitter 25.4 mm/s

Introduction to the 177230-01-01-05 Seismic Transmitter

When machine vibration threatens uptime, the 177230-01-01-05 from Bently Nevada provides a reliable solution. This seismic transmitter converts vibration velocity into a standard 4-20 mA signal, enabling seamless integration with PLCs, DCS, and SCADA systems. With a measurement range of 0 to 25.4 mm/s (0 to 1.0 in/s), it monitors critical rotating equipment effectively.

Engineered for harsh industrial environments, the 177230-01-01-05 features a 316L stainless steel case and hermetic sealing. Its compact design, with a diameter of 25.4 mm and height of 66.0 mm, fits tight spaces while delivering robust performance.

Key Features and Technical Specifications

• Measurement Range: 0 to 25.4 mm/s (0 to 1.0 in/s) RMS
• Frequency Response: 10 Hz to 1 kHz (600 to 60 kcpm) ±10%
• Output Signal: 4-20 mA current loop, proportional to RMS vibration
• 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: 1/4-28 UNF, M6 x 1 SI, M8 x 1.25 SI threads
• Weight: 131 g (4.62 oz) typical

The 4-20 mA loop output simplifies wiring: Pin A is the positive loop, Pin B the return, and Pin C provides a dynamic acceleration signal. This configuration allows direct connection to existing control systems without additional signal conditioning.

Why Choose the 177230-01-01-05 for Vibration Monitoring?

Reliability is paramount in industrial settings. The 177230-01-01-05 offers a hermetically sealed sensor that withstands 100% relative humidity (non-submerged) and delivers consistent performance. Its transverse sensitivity of less than 5% ensures accurate readings even in complex vibration environments.

With a settling time of less than 15 seconds to within 2% of final value, this transmitter responds quickly to changes, enabling timely maintenance decisions. The mounted resonant frequency exceeds 12 kHz, minimizing resonance interference in typical machine vibration ranges.

Installation and Mounting Guidance

Proper installation is critical for accurate vibration measurement. The 177230-01-01-05 offers multiple mounting options: 1/4-28 UNF, M6 x 1 SI, or M8 x 1.25 SI threads. Apply a mounting torque of 4 to 7 N-m (35.4 to 62.0 in-lbf) to secure the sensor firmly.

Ensure the mounting surface is flat and clean to achieve optimal frequency response. The 3-pin MIL-C-5015 connector provides a rugged, corrosion-resistant connection, suitable for demanding environments.

Maintenance and Long-Term Reliability

Routine inspection of the sensor and its mounting is recommended to maintain accuracy. Check for any loosening of the mounting bolt and verify the integrity of the cable and connector. The stainless steel construction resists corrosion, extending service life in harsh conditions.

Given its robust design, the 177230-01-01-05 minimizes downtime and reduces maintenance costs. Its long-term stability supports predictive maintenance programs, helping you avoid unexpected failures.

Compatibility and Integration

The 177230-01-01-05 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 output is universally accepted, simplifying integration into existing monitoring architectures.

Multiple approvals (CSA/NRTL/C, ATEX/IECEx) ensure compliance with international standards, making this transmitter suitable for global installations.

Frequently Asked Questions

Q: What is the measurement range of the 177230-01-01-05?

A: The measurement range is 0 to 25.4 mm/s (0 to 1.0 in/s) RMS, with a full-scale accuracy of ±10%.

Q: How is the 177230-01-01-05 powered?

A: It requires an excitation voltage of 12 to 30 Vdc, with current limited to 40 mA. It is compatible with typical PLC/DCS power supplies.

Q: What output signal does the transmitter provide?

A: It provides a 4-20 mA current loop output proportional to RMS vibration velocity, with 4 mA representing 0.0 mm/s and 20 mA representing full scale.

Q: Can the 177230-01-01-05 be used in hazardous areas?

A: Yes, it has multiple approvals including CSA/NRTL/C and ATEX/IECEx, making it suitable for hazardous locations.

Q: What is the operating temperature range?

A: The transmitter operates from -40°C to +85°C (-40°F to +185°F).

Availability and Support

The 177230-01-01-05 is available through Petro Auto Tech, your trusted industrial automation parts supplier. Contact us for current pricing and lead times. Our team can assist with technical questions and order processing.