990 Vibration Transmitter New Bently Nevada – 990-04-70-03-05

Description

Manufacturer: Bently Nevada

Product Number: 990-04-70-03-05

Product Type: 990 Vibration Transmitter

Detailed Model Breakdown:

990 = Vibration Transmitter Series

04 = Full-scale Option: 0 to 4 mils pp (0 to 100 μm pp)

70 = System Length: 7.0 meters (23.0 feet)

03 = Mounting: DIN clips and screws

05 = Agency Approval: CSA Div 2, ATEX Zone 0 & 2, ABS marine approved

Technical Specifications:

Input: Accepts one non-contacting 3300 NSv Proximity Probe and extension cable

Power Supply: +12 to +35 Vdc at the transmitter terminal

Output Signal: 4 to 20 mAdc over full-scale range

Loop Accuracy: ±1.5% of full-scale with 250 Ω loop resistance

Maximum Loop Resistance: 1,000 Ω including cable at 35 Vdc

Current Limiting: Typical 23 mA

Probe Gap Range: 0.5 to 1.75 mm (20 to 55 mils)

Frequency Response: 5 Hz to 6,000 Hz (+0, -3 dB)

Signal Fail-Safe: Output drops to less than 3.6 mA within 100 µs upon Not OK detection; recovers in 2–3 seconds

Zero and Span Adjustments: External, non-interacting controls

Minimum Target Size: 9.5 mm (0.375 in) diameter

Leadwire Length (BNC): Max 3 meters (10 feet)

Operating Temperature Range: -35°C to +85°C

Humidity Range: Up to 95% non-condensing

Shelf Life: 1 year

Download PDF file here:990 Vibration Transmitter Datasheet