Bently Nevada 1900/27-03 Vibration Monitor

Overview

The 1900/27-03 Vibration Monitor is a single-channel, stand-alone vibration monitoring device designed for machinery protection. It features a 4-20 mA output, local display, and alarm relay contacts, ensuring seamless integration with plant control systems.

Compatible Transducers

• Bently Nevada 200150 & 190520 Accelerometers
• Input Sensitivity: 100 mV/g
• Maximum Acceleration: 20 g peak

Power Supply

• AC Version: 85–264 VAC, 47–440 Hz
• DC Version: 110–370 VDC
• +24 VDC Version: 18–36 VDC

Signal Conditioning

• Full-scale range: 50.8 mm/s (2.0 in/s) zero-to-peak
• Frequency Response: 8 Hz – 4 kHz
• 4-20 mA Output Accuracy: ±5% (30 Hz – 4 kHz)

Outputs & Relays

• Buffered Output: 19.7 mV/mm/s (500 mV/in/s)
• 4-20 mA Output: Overrange 63.5 mm/s (2.5 in/s)
• Relay Contact Ratings: 300 VAC, 6A

Display & Indicators

• LCD Display: 50.8 mm × 22.8 mm (2.0 in × 0.9 in)
• LED Indicators:
  • OK (Green): Monitor, transducers, and wiring are functioning correctly.
  • Alert (Yellow): Indicates an Alert condition.
  • Danger (Red): Indicates a Danger condition.
  • BYPASS (Red): Monitor is in BYPASS mode.

Physical Dimensions

• Height × Width × Depth: 132 mm × 132 mm × 71.1 mm (5.20 in × 5.20 in × 2.80 in)
• Weight: 400 g (0.85 lb)

Environmental Limits

• Operating Temperature: -20°C to +70°C (-4°F to +158°F)
• Storage Temperature: -30°C to +90°C (-22°F to +194°F)
• Humidity: Up to 95%, non-condensing

Ordering Information

• 1900/27-AXX (A: Power Supply Option)
  • 03 = +24 VDC Version