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

Why Choose the Bently Nevada 177230-01-01-05?

When rotating machinery vibrates beyond safe limits, unplanned downtime and costly repairs follow. The 177230-01-01-05 from Bently Nevada provides a reliable solution. This seismic transmitter converts vibration into a standard 4-20 mA signal, enabling continuous monitoring through PLCs, DCS, and SCADA systems. With a measurement range of 0 to 25.4 mm/s (0 to 1.0 in/s), it covers typical industrial vibration levels. Its rugged design and multiple approvals make it a trusted choice for harsh environments.

Key Features and Technical Specifications

The 177230-01-01-05 is engineered for accuracy and durability. Below are its core specifications, all traceable to the official datasheet:

• Measurement Range: 0 – 25.4 mm/s (0 – 1.0 in/s) RMS
• Frequency Response: 10 Hz to 1 kHz (600 to 60 kcpm) ±10%
• 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
• Sensing Element: Ceramic / Shear
• 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)
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Relative Humidity: To 100% non-submerged
• Electrical Isolation: Greater than 10^8 ohms
• Isolation Breakdown Voltage: 600 Vrms with less than 1 mA leakage current
• Shock Survivability: 9.810 m/s² (1.000 g peak), maximum drop test
• Magnetic Field Sensitivity: Less than 20 μm/s/gauss (790 μin/s/gauss) peak

One standout feature is the 4-20 mA loop output, which simplifies integration with existing control systems. This output is proportional to RMS vibration levels, providing a direct and reliable indication of machine health.

Real-World Applications

The 177230-01-01-05 is ideal for monitoring fans, pumps, motors, and other rotating equipment. In manufacturing plants, it helps detect bearing wear and imbalance before they cause failures. In process industries, it supports predictive maintenance strategies, reducing unplanned downtime. Additionally, its compatibility with PLCs, DCS, and SCADA makes it a versatile component in automated monitoring networks.

Installation and Setup

Proper installation ensures accurate readings. The transmitter mounts via a 1/4-28 UNF hole or M6/M8 threads. Recommended mounting torque is 4 to 7 N-m (35.4 to 62.0 in-lbf). Connect Pin A to the positive loop and Pin B to the loop return. Pin C provides an unbuffered dynamic acceleration signal. Ensure the excitation voltage is within 12 to 30 Vdc, and the loop current is limited to 40 mA. For best results, follow the manufacturer's manual for wiring and configuration.

Maintenance and Reliability

The hermetically sealed sensor and 316L stainless steel case provide excellent protection against moisture and corrosion. With no moving parts, the transmitter requires minimal maintenance. However, periodic inspection is recommended to verify mounting integrity and cable condition. Check that the connector remains tight and free from contamination. Regular calibration checks ensure long-term accuracy. The rugged design and high reliability reduce lifecycle costs, making it a cost-effective solution.

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 a universal standard, so it works with most analog input modules. The dynamic signal on Pin C can be used for additional analysis if your system supports it. Always verify compatibility with your specific control system before ordering.

Common Questions About the 177230-01-01-05

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.

Q: What output signal does it provide?

A: It provides a 4-20 mA current loop output proportional to RMS vibration levels.

Q: What approvals does it have?

A: It has multiple approvals including CSA/NRTL/C, ATEX, and IECEx.

Q: What is the operating temperature range?

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

Product Support and Availability

The 177230-01-01-05 is available from Petro Auto Tech. We stock this item and can ship promptly. For technical assistance or to verify lifecycle status, contact Petro Auto Tech. Our team is ready to help you integrate this reliable seismic transmitter into your monitoring system.