990-10-70-02-01 Bently Nevada Vibration Transmitter 990 Series

Bently Nevada 990-10-70-02-01 Vibration Transmitter

Key Technical Specifications

• Manufacturer: Bently Nevada (Made in U.S.A).
• Model Number: 990-10-70-02-01.
• Input: Accepts 1 non-contacting 3300 NSv Proximity Probe and extension cable.
• Full-Scale Range: 0-10 mils pp (0-250 μm pp).
• Power Supply: Requires +12 to +35 Vdc input at the transmitter terminal.
• 4-20 mA Output: 2-wire configuration with loop accuracy within ±1.5% over full scale.
• Frequency Response: 5 Hz to 6,000 Hz +0, 3 dB.
• Maximum Loop Resistance: 1,000 Ω including cable at 35 Vdc.
• Current Limiting: 23 mA typical.
• Probe Gap Setting: Must gap between 0.5 and 1.75 mm (20 to 55 mils) from target.
• Minimum Target Size: 9.5 mm (0.375 in) diameter.
• Maximum Leadwire Length: 3 meters (10 feet) for Proximitor Sensor Output.
• Signal Defeat (NOT OK): Output drops below 3.6 mA within 100 µs after a fault.
• Recovery Time: Signal restores within 2-3 seconds after fault clears.
• Zero & Span: Non-interacting external adjustments for easy calibration.
• Environmental: Suitable for NonHazardous, Zone 2, or Div 2 areas.
• Transmitter Weight: 0.43 kg (0.9 lbm).

Installation & Mounting Guide

• Mount the transmitter using the bulkhead screws (mounting option 02).
• Use the 7.0-meter system length cable for flexible placement.
• Connect the 3300 NSv probe and extension cable to the input.
• Ensure the probe gap is between 0.5 and 1.75 mm for accurate full-scale reading.
• Apply a +12 to +35 Vdc power supply to the transmitter terminals.
• Connect the 4-20 mA loop to a monitoring system with a maximum 250 Ω load for rated accuracy.
• Keep the Proximitor Sensor Output cable length under 3 meters for best performance.

Package Contents

• 1 x Bently Nevada 990-10-70-02-01 Vibration Transmitter.
• 1 x Mounting hardware kit (bulkhead screws).
• 1 x Quick start guide (installation notes).
• Note: Probe and extension cable are sold separately.

Frequently Asked Questions (FAQ)

• Is this a brand new unit? Yes, we supply 100% new original Bently Nevada transmitters.
• What is the shipping method? We ship via FedEx, UPS, or DHL within 5 business days.
• Do you have this in stock? Yes, we maintain stock of the 990-10-70-02-01 model.
• What is the return policy? We support 30-day returns for unused items in original condition.
• What power supply do I need? Use a DC supply between +12 and +35 Vdc at the transmitter terminals.
• How do I adjust zero and span? Use the external non-interacting potentiometers on the unit.
• What does the NOT OK signal mean? It indicates a fault; output drops below 3.6 mA within 100 µs.

Contact Information Inquiries: Email: sales@nex-auto.com , Phone: +86 153 9242 9628 .

Partner NexAuto Technology Limited: https://www.nex-auto.com/