Description

Bently Nevada 990-04-70-02-05 990 Vibration Transmitter

This vibration transmitter checks machine vibrations reliably. It works in factories, dangerous areas, and maritime settings. Made in the USA, with an optional Certificate of Origin.

Model Details

Full Model: 990 (Main series) – 04 (0-4 mils pp / 0-100 μm pp scale) – 70 (7.0m / 23.0ft length) – 02 (Bulkhead screws) – 05 (CSA Div 2, ATEX Zones 0/2, ABS maritime approved)

Weight: 0.43 kg (0.9 lbs) – easy to install in tight spots

Key Features

Works With: 1 Bently 3300 NSv Probe + extension cable (max 3m / 10ft wire from BNC)

Power Needs: 12-35 Vdc input. Use 28 Vdc in dangerous areas.

Signal Output: 4-20 mA (2-wire setup) with ±1.5% accuracy over scale.

Max Resistance: 1,000 Ω at 35 Vdc (includes cable)

Current Limit: 23 mA – stops overload damage

How It Works

Probe Gap: 0.5-1.75 mm (20-55 mils) for best results

Detects Vibrations: 5-6,000 Hz range – catches most machine issues

Min Target Size: 9.5 mm (0.375 in) diameter – gets clear signals

Fault Response: Signal drops below 3.6 mA in 100 µs if faulty. Fixes in 2-3 sec after problems clear.

Download PDF file here:990 Vibration Transmitter Datasheet

Additional information

Weight0.82 kg
Dimensions15 × 7 × 6 cm

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