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

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SKU: 177230-01-01-CN TSI & Rotating Machinery Monitoring Bently Nevada

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High-Performance Seismic Velocity Transmitter for Machinery Health Monitoring

The Bently Nevada 177230-01-01-CN Seismic Transmitter delivers precision vibration velocity measurements for critical rotating equipment. Engineered with aerospace-grade 316L stainless steel construction, this industrial-grade sensor provides reliable RMS velocity data across a 10 Hz to 1 kHz frequency spectrum, making it ideal for bearing fault detection, unbalance monitoring, and predictive maintenance programs.

Measurement Specifications & Performance

Specification Value
Model Code 177230-01-01-CN
Measurement Range 0 to 25.4 mm/s (0 to 1.0 in/s) RMS
Frequency Response 10 Hz to 1 kHz (600 to 60,000 cpm) RMS
Output Signal 4-20 mA proportional to velocity
Sensitivity Factory calibrated for direct readout
Electrical Isolation >10 ohms
Breakdown Voltage 600 Vrms (<1 mA leakage)

Rugged Industrial Construction

  • Housing Material: 316L stainless steel for corrosion resistance in harsh environments
  • Connector Type: 3-pin MIL-C-5015 military-grade connector (316L SS)
  • Mounting Options: ¼-28 UNF, M6-1, M8-1.25 threaded stud mount
  • Compact Dimensions: 25.4mm diameter — 66mm height (1.0″ — 2.6″)
  • Lightweight Design: 131g (4.62 oz) for minimal mass loading effects
  • Mounting Torque: 4-7 N ·m (35-62 in-lbf) for secure installation
  • Shock Survivability: 1,000g peak drop test certified

ï¸ Extended Environmental Operating Range

Operating Temperature: -40 °C to +85 °C (-40 °F to +185 °F) — suitable for arctic to desert climates, steam turbines, and refrigeration compressors.

Certifications Available: CSA/NRTL/C, ATEX/IECEx for hazardous area installations (Option 05)

ï¸ Industrial Application Solutions

Power Generation Turbines: Monitor bearing housing vibration on steam and gas turbines where velocity measurements complement proximity probe displacement data. The 10 Hz low-frequency response captures subsynchronous instabilities while 1 kHz bandwidth detects gear mesh and blade pass frequencies.

Petrochemical Pumps & Compressors: Install on centrifugal pump casings and reciprocating compressor frames to detect cavitation, impeller rub, valve impacts, and foundation resonances. The 4-20 mA output integrates directly with DCS alarm systems for automated shutdown protection.

Mining Conveyors & Crushers: Track belt idler bearing degradation and crusher eccentric shaft conditions in dusty, high-vibration environments. The sealed 316L construction withstands mineral processing plant atmospheres.

Marine Propulsion Systems: Measure main engine and auxiliary machinery vibration aboard vessels where salt spray and temperature cycling demand corrosion-resistant sensors with wide thermal range.

HVAC & Building Systems: Monitor large chiller compressors, cooling tower fans, and air handling unit motors where velocity-based condition monitoring prevents costly emergency repairs.

Engineering Advantages & Differentiation

  • RMS Velocity Output: Directly measures vibration severity per ISO 10816 standards without integration or differentiation
  • Self-Powered Design: Requires only 4-20 mA loop power — no separate excitation voltage needed
  • Ground Loop Immunity: High electrical isolation prevents measurement errors in electrically noisy industrial environments
  • Magnetic Base Compatible: Can be used with magnetic mounting for temporary measurements (roll-on technique required to prevent spike damage)
  • Maintenance-Free Operation: Solid-state electronics with no moving parts for decades of reliable service

Installation Best Practices

  1. Surface Preparation: Machine mounting surface flat to within 0.025mm (0.001″) for optimal coupling
  2. Stud Mounting: Use recommended torque (4-7 N ·m) with thin layer of high-temperature anti-seize compound
  3. Location Selection: Mount on bearing housing or structural point with direct load path to bearing
  4. Orientation: Install in radial direction (horizontal or vertical) based on expected vibration mode
  5. Cable Routing: Secure MIL-C-5015 connector and route cable away from high-temperature surfaces
  6. Magnetic Base Usage: If using magnetic mount, ROLL the base onto surface — never snap or drop to prevent electronics damage

Model Configuration Decoder

Part Number Format: 177230-AA-BB-CC

AA – Range 00: 12.7mm/s | 01: 25.4mm/s | 02: 50.8mm/s
BB – Frequency 01: 10Hz-1kHz RMS | 02: 3Hz-1kHz Peak
CC – Approvals 05: CSA/NRTL/C + ATEX/IECEx

This model (01-01-CN) provides 25.4mm/s range with RMS output and Chinese market certification.

System Integration & Compatibility

The 4-20 mA current loop output connects to:

  • Bently Nevada 3500 Series monitoring racks via 3500/25 Keyphasor modules
  • Distributed control systems (DCS) with analog input cards
  • Programmable logic controllers (PLC) with 4-20 mA input modules
  • Portable vibration analyzers and data collectors
  • Chart recorders and paperless recorders for trend documentation

Sensor Selection Guidance

Application Recommended Range
Low-speed machinery (<1800 RPM) 12.7 mm/s (00 option)
General industrial equipment 25.4 mm/s (01 option) — This model
High-vibration applications 50.8 mm/s (02 option)

What’s Included

  • 1 Bently Nevada 177230-01-01-CN Seismic Transmitter
  • Factory calibration certificate with traceability
  • Installation hardware (mounting stud adapters)
  • Technical documentation and wiring diagrams

Quality & Reliability

Manufactured to Bently Nevada’s stringent quality standards with 100% factory testing. Each unit undergoes frequency response verification, sensitivity calibration, and environmental stress screening before shipment. Designed for 20+ year service life in continuous industrial operation.

Technical Support & Resources

Our vibration monitoring specialists provide application engineering support for sensor selection, mounting location optimization, and alarm setpoint determination. Contact us for site-specific recommendations based on your machinery type and operating conditions.

Ensure machinery reliability with proven Bently Nevada seismic monitoring technology — the industry standard for over 60 years.

Product Series

3500 Series

Country of Origin

US

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