177230-00-01-05 Bently Nevada 4-20mA Seismic Transmitter
Manufacturer: Bently Nevada
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Part Number: 177230-00-01-05
Condition：New with Original Package
Product Type: Casing Vibration Monitoring
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Bently Nevada 177230-00-01-05 represents a high-performance, loop-powered seismic transmitter designed for continuous casing vibration monitoring. It simplifies machinery protection by converting mechanical vibration into a standard 4–20 mA analog signal proportional to velocity. This architecture allows direct interfacing with PLCs, DCS, and SCADA systems without requiring specialized vibration monitors. We supply this unit as 100% Brand New and Original in factory packaging, complete with a dynamic signal output for detailed waveform analysis.
Part Number Breakdown: 177230-00-01-05
The 177230 series uses a structured suffix system to define full-scale range and hazardous area approvals.
| Suffix | Configuration Detail |
| -00 | Standard 0 to 1.0 in/s (25.4 mm/s) RMS Range |
| -01 | 1/4" NPT Mounting Stud Option |
| -05 | Multiple Worldwide Agency Approvals (ATEX, IECEx, CSA, UL) |
Technical Specifications
| Parameter | Details |
| Measurement Type | Seismic Velocity (RMS or Peak) |
| Output Signal | 4–20 mA DC (Loop-powered) |
| Dynamic Signal | Unbuffered Acceleration (100 mV/g ±20%) |
| Excitation Voltage | 12 to 30 V DC |
| Frequency Response | 10 Hz to 1 kHz (±10%) |
| Resonant Frequency | > 12 kHz (Mounted) |
| Sensing Element | Ceramic Shear Type |
| Operating Temperature | -30 °C to +100 °C |
| Connection | 3-Pin Circular Connector (MIL-C-5015) |
Engineering Advantages
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Dual-Function Output: The 177230-00-01-05 provides both a 4-20 mA loop for general control system trends and a dynamic signal output (Pin C). This allows maintenance teams to plug in portable data collectors for high-resolution FFT analysis without disconnecting the primary safety loop.
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Ceramic Shear Technology: The internal sensing element utilizes a ceramic shear design. This configuration drastically reduces sensitivity to base strain and thermal transients, ensuring that your vibration readings reflect actual machinery movement rather than environmental noise.
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Direct Control System Integration: Because the transmitter operates on a standard 2-wire loop, it eliminates the need for external Proximitors or interface modules. This reduces cabinet space requirements and lowers the total cost of ownership for pump, fan, and motor monitoring.
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Hazardous Area Versatility: With the -05 approval option, this transmitter carries global certifications (ATEX, IECEx, UL, CSA). It operates safely in explosive atmospheres common to oil and gas refineries and chemical processing plants.
FAQs
Q: Does the 177230-00-01-05 require field calibration?
A: No. The unit arrives factory-calibrated and requires no field adjustments. Its "plug-and-play" design allows for immediate deployment once mounted and wired to a 12-30V DC power source.
Q: How do I access the dynamic signal for diagnostics?
A: Use Pin C of the connector to access the unbuffered acceleration signal (100 mV/g). This allows you to perform advanced fault frequency detection (such as bearing wear or gear mesh issues) using a portable analyzer while the 4-20 mA loop remains active.
Q: What is the benefit of the Ceramic Shear sensing element over compression types?
A: Compression sensors often produce false signals due to temperature fluctuations and housing expansion. The shear-mode element in the 177230 isolates the crystal from these mechanical stresses, providing much higher data accuracy in outdoor or fluctuating industrial environments.
Q: Can I use this transmitter on high-speed turbines?
A: This seismic transmitter measures casing vibration up to 1 kHz. For high-speed turbomachinery requiring shaft relative vibration measurements, we recommend Bently Nevada proximity probe systems. However, for casing monitoring on pumps, fans, and compressors, the 177230 is ideal.