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

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

When machinery vibration threatens uptime, the 177230-02-02-05 from Bently Nevada provides accurate, real-time data. This seismic transmitter converts vibration into a standard 4-20 mA signal for integration with PLCs, DCS, and SCADA systems. Its rugged design suits demanding industrial environments.

Key Features and Technical Specifications

• Measurement Range: 0 to 50.8 mm/s (0 to 2.0 in/s) peak.
• Frequency Response: 3 Hz to 1 kHz (180 to 60 kcpm) peak.
• Output Signal: 4 to 20 mA current loop from 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).
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Relative Humidity: To 100% non-submerged.
• Approvals: CSA/NRTL/C, ATEX/IECEx.

These specifications ensure reliable performance in vibration monitoring applications.

Applications and Use Cases

This transmitter suits rotating machinery such as pumps, fans, and motors. It provides continuous vibration data to control systems, enabling predictive maintenance. For example, in a chemical plant, the 177230-02-02-05 can alert operators to bearing wear before failure. Its 4-20 mA output simplifies integration with existing automation infrastructure.

Installation and Setup

Mount the transmitter securely using the 1/4-28 UNF hole. Apply the specified mounting torque of 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. Ensure the excitation voltage is within 12 to 30 Vdc. The unit is hermetically sealed, so no special handling is required.

Maintenance and Reliability

Periodically inspect the mounting and connector for tightness. Verify the output signal matches expected vibration levels. The 316L stainless steel case resists corrosion, extending service life. With no moving parts, this transmitter requires minimal maintenance, reducing downtime.

Compatibility and Integration

The 4-20 mA output is universally compatible with PLCs, DCS, and SCADA systems that have internal power supplies current-limited to 30-35 mA. This makes the 177230-02-02-05 easy to add to existing monitoring loops.

Troubleshooting and Common Issues

If the output is zero, check the loop wiring and excitation voltage. If the signal is erratic, verify the mounting torque and connector integrity. For persistent issues, consult the Bently Nevada manual or contact Petro Auto Tech.

FAQ about the 177230-02-02-05

Q: What is the measurement range of the 177230-02-02-05?

A: The measurement range is 0 to 50.8 mm/s (0 to 2.0 in/s) peak.

Q: What output signal does this transmitter provide?

A: It provides a 4-20 mA current loop output from Pin A to Pin B.

Q: What is the operating temperature range?

A: The operating temperature range is -40°C to +85°C (-40°F to +185°F).

Q: Is the 177230-02-02-05 approved for hazardous areas?

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

Q: How do I connect the transmitter?

A: Connect Pin A to the positive loop, Pin B to the loop return, and Pin C for the dynamic signal.

Product Support and Availability

The Bently Nevada 177230-02-02-05 is available from Petro Auto Tech. Contact our team for current stock and delivery options. We are ready to support your vibration monitoring needs.