Two-wire Vibration Transmitter | 990-08-70-02-01 | Bently Nevada

Overview

The Bently Nevada 990-08-70-02-01 vibration transmitter detects machinery faults using 3300 NSv Proximity Probes. It sends 4–20 mA signals for real-time monitoring and mounts with bulkhead screws. CSA Div 2 certified for hazardous zones, it measures 0–8 mils vibration. Optional origin certificates available. Made in the USA for tough industrial use.

Technical Specs

• Brand: Bently Nevada
• Model: 990-08-70-02-01
• Code Breakdown:
  • 08: 0–8 mils (0–200 µm) range
  • 70: 7.0 m (23 ft) system cable
  • 02: Bulkhead screw mount
  • 01: CSA Div 2 approved
• Power: +12–35 Vdc
• Output: 4–20 mA (2-wire)
• Accuracy: ±1.5% at 250 Ω load
• Probe Gap: 0.5–1.75 mm (20–55 mils)
• Fault Response: <3.6 mA in 100 µs
• Recovery Time: 2–3 sec after fault
• Min Target: 9.5 mm (0.375 in)
• Max Cable: 3 m (10 ft) for probe
• Weight: 0.43 kg (0.9 lb)
• Temp Range: -40°C to +85°C
• IP Rating: IP65 (dust/waterproof)

Key Features

• CSA Div 2 safety certified
• Fast fault alerts (under 3.6 mA)
• Tool-free bulkhead mounting
• Works in harsh conditions (IP65)
• ±0.5% long-term stability
• 28 Vdc power optimized

For more detailed information:990 Vibration Transmitter Datasheet