Product Introduction
When unplanned vibration spikes threaten rotating machinery, the Bently Nevada 177230-02-01-05 Seismic Transmitter delivers precise, real-time data to protect your assets. This robust transmitter converts seismic vibration into a standard 4-20 mA loop signal, enabling seamless integration with PLC, DCS, and SCADA systems. Built for demanding environments, it combines high accuracy with exceptional durability.
Technical Specifications Breakdown
The 177230-02-01-05 offers a measurement range of 0 – 50.8 mm/s (0 – 2.0 in/s) RMS, covering critical vibration levels. Its frequency response spans 10 Hz to 1 kHz (600 to 60 kcps) RMS, ensuring sensitivity across common machinery fault frequencies. The output signal is a 4 to 20 mA current loop, with sensitivity calibrated so 4 ± 0.3 mA equals 0.0 mm/s and 20 ± 2 mA equals the full-scale range. This linear relationship simplifies data interpretation and reduces system integration costs.
The transmitter operates on an excitation voltage of 12 to 30 Vdc, current limited to 40 mA, which aligns with typical PLC/DCS internal power supplies (30-35 mA). This compatibility minimizes the need for external power modules, lowering overall installation expense. The settling time is less than 15 seconds within 2% of final value, enabling rapid response after power-up.
Industry Applications
In petrochemical plants, the 177230-02-01-05 monitors pump and compressor vibration, providing early warning of bearing wear or imbalance. Its 316L stainless steel case and hermetically sealed sensor withstand corrosive atmospheres and 100% non-submerged humidity, reducing replacement frequency and maintenance costs. For power generation turbines, the transmitter's mounted resonant frequency greater than 12 kHz ensures accurate readings even in high-frequency environments, preventing false alarms that could trigger costly shutdowns.
Installation & Setup Guidance
Mount the 177230-02-01-05 using the 1/4-28 UNF hole in the body or the M6 x 1 SI / M8 x 1.25 SI threads. Apply a mounting torque of 4 to 7 N-m (35.4 to 62.0 in-lbf) to ensure secure attachment without damaging the case. Wire per the connector convention: Pin A for 4-20 mA positive loop, Pin B for loop return, and Pin C for dynamic acceleration signal. Verify the excitation voltage (12-30 Vdc) matches your system's supply to avoid overcurrent issues.
Maintenance & Reliability
With no moving parts and a ceramic/shear sensing element, the 177230-02-01-05 requires minimal routine care. Its 316L stainless steel construction resists corrosion, extending service life in harsh environments. The hermetically sealed sensor prevents moisture ingress, maintaining accuracy over years of operation. Periodic inspection of the connector and cable integrity is recommended to ensure consistent signal transmission, reducing unexpected downtime and associated repair costs.
Compatibility & Integration
This transmitter is designed for direct connection to PLC, DCS, and SCADA systems that provide a current-limited power supply (30-35 mA typical). The 4-20 mA output simplifies analog input module integration without specialized converters. Its multiple approvals (CSA/NRTL/C, ATEX/IECEx) allow deployment in hazardous areas globally, avoiding the expense of additional barriers or isolators in many installations.
Selection Guide & Purchasing Advice
Before ordering the 177230-02-01-05, confirm your system's excitation voltage (12-30 Vdc) and verify the full-scale range option (01 - 25.4 mm/s ± 10% in this variant). Ensure the mounting thread (1/4-28 UNF or M6/M8) matches your bracket. SpareTechPLC stocks this model with fast shipping and expert support to help you select the correct configuration for your vibration monitoring needs.
Frequently Asked Questions
Q: What is the output signal of the 177230-02-01-05?
A: It provides a 4 to 20 mA current loop from Pin A to Pin B, proportional to peak vibration levels.
Q: What is the operating temperature range?
A: The transmitter operates from -40°C to +85°C (-40°F to +185°F).
Q: Can this transmitter be used in hazardous areas?
A: Yes, it carries multiple approvals including ATEX/IECEx for use in explosive environments.
Q: What is the weight of the 177230-02-01-05?
A: The typical weight is 131 g (4.62 oz).
Q: Does the transmitter require external power?
A: It requires 12 to 30 Vdc excitation, current limited to 40 mA, typically supplied by the connected PLC/DCS/SCADA system.
