Bently Nevada|177230-02-01-CN|Loop-Powered Seismic Transmitter

Bently Nevada 177230-02-01-CN Seismic Transmitter

Description
The Bently Nevada 177230-02-01-CN is a loop-powered seismic transmitter that delivers 4–20 mA velocity output and unbuffered acceleration voltage for industrial vibration monitoring applications.

Features

• Direct interface with PLCs, DCS, and SCADA systems
• No field configuration or adjustments required
• Includes self-test and protected signal interface
• Supports multiple cable types
• Provides raw vibration signal for verification
• Designed for hazardous environments with global certifications

Technical Specifications

• Electrical

  • Excitation: 12 to 30 Vdc (current limited to 40 mA)
  • Settling time: <15 seconds within 2% of final value
  • Output signal: 4–20 mA current loop (Pin A to Pin B)
  • Sensitivity: 4 ±0.3 mA = 0.0 mm/s; 20 ±2 mA = full scale range
  • Velocity ranges:
    • 12.7 mm/s (0.5 in/s) ±10%
    • 25.4 mm/s (1.0 in/s) ±10%
    • 50.8 mm/s (2.0 in/s) ±10%
  • Frequency response:
    • 10 Hz to 1 kHz ±10% (RMS)
    • 3 Hz to 1 kHz ±10% (peak)

• Acceleration Output

  • Signal: Unbuffered voltage (Pin C to Pin B)
  • Sensitivity: 10.2 mV/m/s² (100 mV/g) ±20%
  • Range: 147 m/s² (15 g) peak
  • Frequency response: 2.5 Hz to 10 kHz ±10%
  • Linearity: ±1% of full scale
  • Output bias: 2.5 V ±0.1 V

• Environmental

  • Operating temperature: -40°C to +85°C
  • Storage temperature: -55°C to +100°C
  • Humidity: 100% non-condensing
  • Shock survivability: 9.810 m/s² (1000 g peak)
  • Enclosure: Hermetically sealed
  • Electrical isolation: >10⁸ ohms; breakdown voltage: 600 Vrms

• Physical

  • Dimensions: Ø25.4 mm x 66 mm
  • Weight: 131 g
  • Case material: 316L stainless steel
  • Mounting: ¼-28 UNF (included), M6 x 1, M8 x 1.25
  • Mounting torque: 4–7 N·m