990 Vibration Transmitter Bently Nevada 990-10-50-02-01

Bently Nevada 990-10-50-02-01 Vibration Transmitter

Key Product Specifications

• Brand & Full Model: This is a genuine Bently Nevada 990-10-50-02-01 transmitter.
• Mounting & Certification: Features bulkhead screw mounting (suffix -02) and holds CSA Division 2 hazardous area approval (suffix -01).
• Measurement Range: Delivers a full-scale range of 0–10 mils peak-to-peak (0–250 µm).
• Signal Output: Provides a standard 4–20 mA two-wire loop output, with current limiting at 23 mA max.
• System Accuracy: Maintains an accuracy of ±1.5% over the specified full-scale range.
• Frequency Response: Captures vibration data from 5 Hz up to 6,000 Hz (+0, -3 dB).
• Physical Weight: The compact unit weighs 0.43 kg (0.9 lb) for easy handling.

Mounting & Installation Guidelines

• Securely mount the transmitter using the included bulkhead screw hardware kit.
• Connect it to one 3300 NSv proximity probe and its 5-meter extension cable.
• For signal integrity, keep the cable from the Proximitor's BNC output under 3 meters (10 feet).
• Ensure the probe tip is gapped between 0.5–1.75 mm (20–55 mils) from the target shaft.
• The target must have a minimum diameter of 9.5 mm (0.375 inches).

Power, Compatibility & Electrical Details

• Sensor Input: Accepts input from one 3300 NSv non-contacting proximity probe system.
• Power Supply: Operates on a +12 to +35 VDC input voltage at the transmitter terminals.
• Loop Resistance: The total loop resistance must not exceed 1,000 Ω at 35 VDC.
• Current Loop: The standard 4-20 mA output is compatible with most PLCs and DCS systems.

Frequently Asked Questions (FAQ)

• Q: What is the key feature of the "-02" mounting option?
  A: The -02 suffix indicates a bulkhead screw mounting configuration for a secure, fixed installation.
• Q: How quickly does this transmitter report a sensor fault?
  A: It reacts very fast, pulling the 4-20 mA signal below 3.6 mA within 100 microseconds of a fault.
• Q: Can I adjust the calibration in the field?
  A: Yes, it has external zero and span adjustments that do not interfere with each other.
• Q: What power supply voltage is recommended?
  A: A common 24 VDC supply works perfectly within its +12 to +35 VDC operating range.
• Q: Is this model suitable for hazardous locations?
  A: Yes, the -01 suffix confirms it is CSA Certified for Division 2 hazardous areas.

For complete wiring diagrams, dimensional drawings, and detailed specifications, access the official documentation. Download the Full 990 Vibration Transmitter Datasheet PDF Here.