991-01-XX-01-00 MOD 284318-01 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	991-01-XX-01-00 MOD 284318-01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter is a loop-powered, two-wire device designed for OEMs of centrifugal air compressors, small pumps, motors, and fans. Accepting input from a single 3300 NSv Proximity Probe and extension cable (up to 7.0 meters), 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter converts shaft axial movement within a 25-0-25 mil full-scale range into a 4–20 mA signal. The transmitter supports a −35°C to +85°C operating range, 1,000 Ω maximum loop resistance, and Prox Out linear range of 0.25–1.65 mm. Mountable on 35 mm DIN rails or bulkhead screws, 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter also offers a 10 kΩ BNC output for dynamic signal diagnostics. Features include non-interacting zero/span potentiometers, test input pin, Power-up Inhibit, and Not OK/Signal Defeat circuits, ensuring reliable loop-powered vibration monitoring in compact machinery control installations.

Applications

Measure Shaft Axial Movement with 3300 NSv Probe
The 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter accurately measures axial displacement using a 3300 NSv Proximity Probe, converting 25-0-25 mil motion into a 4–20 mA signal for machinery control systems.

Monitor Pumps, Fans, and Motors
Install the 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter on small pumps or fans to provide real-time vibration feedback. The transmitter’s linear range of 0.25–1.65 mm ensures precise axial position detection.

Integrate with Control Systems
The 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter supports integration with PLCs and DCS platforms using its loop-powered 4–20 mA output. Maximum loop resistance of 1,000 Ω allows extended cable runs up to 7 meters.

Enable Compact Installations
The 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter fits tight spaces, using 35 mm DIN-rail clips or bulkhead screws and a 3-meter BNC leadwire for Proximitor Sensor Output diagnostics.

Specifications

Competitive Advantage

Direct Axial Signal Conversion
The 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter converts axial displacement from the 3300 NSv Proximity Probe directly to a 4–20 mA loop-powered signal, eliminating extra modules.

Flexible Power and Mounting
Operating at +12 to +35 Vdc, the 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter allows extended loop lengths and provides mounting via DIN-rail or bulkhead screws for easy installation.

Dynamic Diagnostic Output
The 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter provides a 10 kΩ BNC Prox Out output for gap voltage and vibration diagnostics, simplifying maintenance and data analysis.

Field Calibration Capability
Non-interacting zero and span potentiometers on the 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter enable loop adjustment without affecting other system parameters.

Protection Against False Alarms
With Power-up Inhibit and Not OK/Signal Defeat circuits, the 991-01-XX-01-00 MOD 284318-01 Vibration Transmitter prevents high outputs and false alarms from faulty probes or loose connections.