990-05-70-02-00 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-05-70-02-00
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 990-05-70-02-00 Vibration Transmitter is a compact, loop-powered vibration monitoring device designed for industrial automation systems that require reliable real-time machinery condition feedback. Engineered to work directly with a 3300 NSv non-contacting proximity probe and matching extension cable, this vibration transmitter converts dynamic shaft vibration into a standardized 4 to 20 mA output signal for direct integration with PLCs, DCS platforms, and machinery control systems.

With a full-scale measurement range of 0 to 5 mils peak-to-peak and a linear operating range from 0.25 to 1.65 mm, the 990-05-70-02-00 Vibration Transmitter enables accurate vibration amplitude monitoring for small rotating assets. Its two-wire loop-powered design operates on a wide supply range of +12 to +35 Vdc and supports loop resistance up to 1,000 ohms, allowing flexible installation in distributed automation architectures. Designed for harsh industrial environments, the transmitter operates reliably from -35°C to +85°C and features fully potted electronics for high humidity conditions. Integrated signal conditioning eliminates the need for an external proximitor, reducing system complexity while improving automation system reliability and uptime.

Applications

Application 1 Centrifugal Air Compressor Automation
In centrifugal air compressor systems, the 990-05-70-02-00 Vibration Transmitter provides continuous shaft vibration feedback using a 4 to 20 mA signal. With a 7.0-meter system length and a 5 mils peak-to-peak full-scale option, operators can detect vibration increases of less than 1 mil, enabling early fault detection and reducing unplanned shutdown risk by up to 20 percent.

Application 2 Small Pump Condition Monitoring
For industrial pump automation, this vibration transmitter converts proximity probe signals into a control-ready current loop. The linear vibration range ensures stable measurement during normal operation, supporting automated alarms and interlocks within PLC-based pump protection systems.

Application 3 Motor and Fan Protection Systems
In electric motor and fan applications, the transmitter’s loop-powered architecture simplifies wiring while maintaining accurate vibration monitoring. The 23 mA current limiting protects automation inputs from overload, improving long-term system reliability in continuous-duty environments.

Application 4 OEM Skid-Based Machinery Packages
OEMs integrating compact machinery skids benefit from the bulkhead mounting option and integrated Proximitor Sensor design. Eliminating external signal conditioners reduces panel space requirements by approximately 30 percent while maintaining industrial-grade vibration measurement accuracy.

Application 5 Distributed Control System Integration
Within DCS environments, the standardized 4 to 20 mA output allows direct connection to analog input cards. The Not OK and signal defeat circuitry prevents false high readings caused by probe faults, ensuring stable automation logic and reliable alarm handling.

Specifications

Competitive Advantage

Competitive Advantage 1 Integrated Signal Conditioning
The 990-05-70-02-00 Vibration Transmitter incorporates proximitor functionality internally, eliminating the need for a separate signal conditioner and reducing component count, wiring complexity, and overall installation cost by up to 25 percent.

Competitive Advantage 2 Industrial-Standard Output Compatibility
By delivering a proportional 4 to 20 mA signal with a maximum loop resistance of 1,000 ohms, the transmitter integrates seamlessly with modern PLC and DCS systems, ensuring compatibility across a wide range of automation platforms.

Competitive Advantage 3 High Environmental Resilience
Fully potted electronics and a wide operating temperature range allow stable operation in high humidity and harsh industrial conditions, extending service life and reducing maintenance frequency in automated machinery systems.

Competitive Advantage 4 Built-In Diagnostic Capability
The non-isolated PROX OUT and coaxial diagnostic output provide real-time vibration and gap voltage signals. This allows maintenance teams to perform waveform analysis and fault verification without interrupting the automation loop, improving troubleshooting efficiency.

Competitive Advantage 5 Compact Design for Limited Clearance
Compatibility with the 3300 NSv proximity probe enables installation in tight spaces common to compressors and small rotating equipment. This compact footprint supports automation upgrades where mechanical clearance is limited, without sacrificing vibration measurement accuracy.