990-05-70-01-05 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-05-70-01-05
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 990-05-70-01-05 Vibration Transmitter is a high-precision, loop-powered industrial device designed for condition monitoring and automation control of rotating machinery. Specifically engineered for centrifugal air compressors, small pumps, motors, and fans, it converts the input from a 3300 NSv proximity probe and extension cable into a 4 to 20 mA proportional vibration signal, suitable for integration with machinery control systems and protective automation logic. The transmitter operates over a linear range of 0.25 to 1.65 mm (10 to 65 mils), with a full-scale option of 0-5 mils pp (0-125 μm pp), delivering highly accurate peak-to-peak vibration readings. Loop-powered (+12 to +35 Vdc) with maximum loop resistance up to 1,000 Ω, it features non-isolated PROX OUT and COM terminals and a BNC connector for diagnostic outputs. The transmitter includes non-interacting zero and span potentiometers, a test input for quick loop verification, and a Not OK/Signal Defeat circuit to prevent false alarms. Designed for -35°C to +85°C operating temperature and potted for 100% condensing humidity, it provides reliable performance in demanding automation environments. Mounting is simplified with 35 mm DIN-rail clips or bulkhead screws, and ABS, CSA, and ATEX certifications ensure compliance for industrial and maritime applications.

Applications

Direct Connection to 3300 NSv Proximity Probes
990-05-70-01-05 interfaces directly with 3300 NSv proximity probes, eliminating the need for external sensors. Using 990-05-70-01-05, installation in tight or confined spaces becomes straightforward, reducing setup time for automated vibration monitoring systems.

Loop-Powered Operation from +12 to +35 Vdc
The 990-05-70-01-05 operates on +12 to +35 Vdc and supports loop resistance up to 1,000 Ω. This allows 990-05-70-01-05 to provide consistent 4-20 mA output signals, ensuring reliable connection to industrial automation and control systems.

Adjustable Output for Real-Time Monitoring
990-05-70-01-05 includes non-interacting zero and span potentiometers for easy calibration. The dynamic PROX OUT signal from 990-05-70-01-05 delivers real-time diagnostic data, enabling preventive maintenance before vibration damage occurs in turbines, compressors, or motors.

Durable Construction for Harsh Environments
The potted design of 990-05-70-01-05 supports continuous operation in temperatures from -35°C to +85°C. 990-05-70-01-05 can be used in condensing, humid, or potentially explosive environments, providing reliable vibration measurement under demanding industrial conditions.

Flexible Mounting with Global Approvals
990-05-70-01-05 can be mounted on DIN rails or bulkheads. Combined with CSA, ATEX, and ABS certifications, 990-05-70-01-05 enables fast deployment in industrial plants, offshore platforms, and OEM automation systems without additional compliance checks.

Specifications

Competitive Advantage

Centrifugal Air Compressor Vibration Measurement up to 125 μm
990-05-70-01-05 delivers vibration readings for centrifugal air compressors with peak-to-peak resolution up to 125 μm. Using 990-05-70-01-05, maintenance teams can detect early mechanical issues and schedule preventive service, reducing unplanned downtime in OEM compressor systems.

Pump and Motor Vibration Protection with 4-20 mA Signal
990-05-70-01-05 generates a 4-20 mA proportional output from connected 3300 NSv proximity probes. This allows 990-05-70-01-05 to monitor vibration in pumps and motors, detecting bearing wear or shaft misalignment before failures occur.

Real-Time Fan and HVAC Vibration Feedback
990-05-70-01-05 provides continuous vibration feedback for fans and HVAC units. Automated systems can use signals from 990-05-70-01-05 to trigger alarms or adjust fan speeds, ensuring operational efficiency in building or process ventilation systems.

Loop-Powered OEM Control System Integration
The 2-wire, loop-powered design of 990-05-70-01-05 allows direct connection to OEM machinery control systems without additional power supplies. 990-05-70-01-05 delivers accurate analog vibration signals for automated monitoring and process control.

Operation in Humid, Explosive, and Maritime Environments
990-05-70-01-05 has potted construction and ATEX/CSA approvals, supporting installation in high-humidity, explosive, or maritime locations. Using 990-05-70-01-05, vibration signals remain precise under extreme temperature and environmental conditions.