990-05-70-03-00 | Bently Nevada | 990 Vibration Transmitter in Stock

Bently Nevada 990 Vibration Transmitter for OEMs

Purpose: Designed for OEMs working with centrifugal air compressors, small pumps, motors, or fans, the 990 Vibration Transmitter provides a straightforward 4 to 20 mA proportional vibration signal for machinery control systems.

Key Features:

Input Compatibility:

• Accepts input from the 3300 NSv proximity probe and its matching extension cable (available in 5 m and 7 m system length options).
• Conditions the signal into appropriate peak-to-peak vibration amplitude engineering units.

Technical specifications:

• Electrical Input Power: Requires +12 to +35 Vdc input at the transmitter terminal.
• 4 to 20 mA Signal Output: Provides a 4 to 20 mA signal output.
• 4 to 20 mA Loop Accuracy: Within ±1.5% over the specified full-scale range.
• Probe Gap: Probe must be gapped between 0.5 and 1.75 mm (20 and 55 mils) from target to ensure full-scale range.
• Maximum Loop Resistance: 1,000 Ω including cable at 35 Vdc.
• Current Limiting: 23 mA typical.
• Zero and Span: Adjustment for loop calibration.
• NOT OK/Signal Defeat: Circuit to prevent false alarms.
• Power-up Inhibit: Circuit to eliminate signal errors during power-up.
• Compatibility: Accepts 1 non-contacting 3300 NSv Proximity Probe and extension cable.