Human-machine interfaces

Product Overview

The Bently Nevada 138257-01 Earthing Module Front Panel is an internal barrier earthing module designed to support precise and reliable signal processing in industrial environments. It features high accuracy in voltage, current, and capacitance parameters, ensuring robust performance in critical applications.

Key Specifications

Physical Information:

• Module Type: Internal Barrier Earthing Module
• Dimensions: 241 mm x 24.4 mm x 103.1 mm (9.50 in. x 0.96 in. x 4.06 in.)
• Weight: 0.201 kg (0.443 lb.)

Proximity and Acceleration:

• Bandwidth: 30 kHz
• Amplitude Accuracy:
  • 3% @ 10 kHz
  • -15/+10% @ 30 kHz
• Phase Accuracy: -11° @ 10 kHz

Channel Parameters:

• Um (Maximum Voltage): 250 V
• Uo (Output Voltage): 27.45 V
• Io (Output Current): 113.24 mA
• Co (Output Capacitance): 0.086 µF
• Lo (Output Inductance): 2.77 mH
• Po (Output Power): 726.96 mW

Circuit Parameters:

• Power (PWR):
  • Uo: 26.25 V
  • Rmin: 237.6 Ω
  • Io: 110.48 mA
• Signal (SIG):
  • Uo: 13.65 V
  • Rmin: 4985 Ω
  • Io: 2.74 mA

Velomitor Sensor Specifications:

• Amplitude Accuracy: ±1%
• Channel Parameters:
  • Um: 250 V
  • Uo: 26.25 V
  • Io: 88.39 mA
  • Co: 0.097 µF
  • Lo: 4.55 mH
  • Po: 580.02 mW

Temperature Specifications:

• Temperature Accuracy: ±1°C @ +25°C, ±15°C over operating temperature
• Phase Accuracy: -11° @ 10 kHz
• Channel Parameters:
  • Um: 250 V
  • Uo: 7.71 V
  • Io: 89.17 mA
  • Co: 9.3 µF
  • Lo: 4.55 mH
  • Po: 132.41 mW

Process Variable Channel Parameters:

• Um: 250 V
• Uo: 27.98 V
• Io: 279.34 mA
• Co: 0.083 µF
• Lo: 0.455 mH
• Po: 842.89 mW

Circuit Parameters for Process Variable:

• Power (PWR):
  • Uo: 26.78 V
  • Rmin: 297 Ω
  • Io: 90.17 mA
• Signal (SIG):
  • Uo: 9.56 V
  • Rmin: 50.58 Ω
  • Io: 189.01 mA

Ordering Information:

• Spares: 138257-01 Earthing Module Front Panel

Details