990-05-70-02-05 Bently Nevada | Two-wire Vibration Transmitter

Overview

The Bently Nevada 990-05-70-02-05 is a high-precision 2-wire vibration transmitter designed for a wide range of industrial applications. This model offers robust capabilities for monitoring vibration in hazardous areas and non-hazardous zones, with certifications including CSA Division 2, ATEX Zone 0, ATEX Zone 2, and ABS maritime approval. Built in the U.S.A, it is engineered for accuracy, reliability, and ease of integration into existing systems.

Technical Specifications

• Manufacturer: Bently Nevada
• Product No.: 990-05-70-02-05
• Product Type: 2-Wire Vibration Transmitter
• Full-Scale Range: 0-5 mils (0-125 µm pp)
• Mounting Option: Bulkhead screws (02)
• System Length: 7.0 meters (23.0 feet)
• Weight: 0.43 kg
• Power Supply: 12 to 35 Vdc input at the transmitter terminal
• Output Impedance: 10 kΩ, calibrated for a 10 MΩ load
• Target Size: Minimum 9.5 mm (0.375 in) diameter
• Probe Gap: Between 0.5 and 1.75 mm (20 and 55 mils) from the target surface
• Loop Resistance: Maximum of 1,000 Ω, including cable, at 35 Vdc
• Current Limiting: 23 mA typical
• Not OK/Signal Defeat: Signal output drops below 3.6 mA within 100 µs after a Not OK condition occurs, and it restores within 2-3 seconds after the issue is resolved.

FAQ

Q1: What is the maximum cable length for the proximitor sensor?

• The maximum cable length for the proximitor sensor output is 3 meters (10 feet).

Q2: How accurate is the 4-20 mA output signal?

• The 4-20 mA signal output has an accuracy of ±1.5% over the full-scale range.

Q3: Can I use the Bently Nevada 990-05-70-02-05 in hazardous areas?

• Yes, it is approved for use in CSA Division 2 and ATEX Zones 0 and 2, making it suitable for hazardous area locations.

For more detailed information:990 Vibration Transmitter Datasheet