990-04-70-02-00 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-04-70-02-00
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 990-04-70-02-00 Vibration Transmitter is a compact, loop-powered device that converts signals from a 3300 NSv Proximity Probe and matching extension cable into a proportional 4–20 mA vibration signal for machinery control systems. The 990-04-70-02-00 Vibration Transmitter supports a linear range of 0.25–1.65 mm (10–65 mils) for precise gap and vibration measurements, with system lengths up to 7.0 meters (23.0 ft). Operating from +12 to +35 Vdc with a maximum loop resistance of 1,000 Ω, the 990-04-70-02-00 Vibration Transmitter provides reliable output using a 10 kΩ calibrated load. Designed for OEM installation in centrifugal air compressors, pumps, motors, and fans, this transmitter handles operating temperatures from -35°C to +85°C (-31°F to +185°F) and storage temperatures from -52°C to +100°C (-62°F to +212°F).

Applications

Measure Peak-to-Peak Vibration
The 990-04-70-02-00 Vibration Transmitter accurately converts signals from 3300 NSv Proximity Probes into vibration amplitude in μm or mils, enabling condition monitoring of small compressors, pumps, and motors.

Integrate with Machinery Control Systems
Use the 990-04-70-02-00 Vibration Transmitter to provide a 4–20 mA signal for alarm and logic inputs in industrial control panels, supporting rapid automation integration.

Compact Installation in Limited Spaces
The 990-04-70-02-00 Vibration Transmitter works with 3300 NSv Proximity Probes for installation in small areas with minimal clearance, ideal for centrifugal air compressors and compact rotating machinery.

Quick Signal Verification and Adjustment
The 990-04-70-02-00 Vibration Transmitter includes a test input pin and non-interacting

Specifications

Competitive Advantage

Loop-Powered Two-Wire Design
The 990-04-70-02-00 Vibration Transmitter operates directly from +12 to +35 Vdc, simplifying wiring and reducing installation costs.

Peak-to-Peak Output with Diagnostics
The 990-04-70-02-00 Vibration Transmitter provides both a proportional 4–20 mA output and a dynamic BNC PROX OUT signal for vibration diagnostics.

High Humidity Protection
Potted construction allows the 990-04-70-02-00 Vibration Transmitter to operate in up to 100% condensing environments without signal degradation.

Mounting Flexibility
Supports DIN-rail clips or bulkhead screws, allowing quick integration into control cabinets or OEM machinery panels.

Fault Detection Circuit
The 990-04-70-02-00 Vibration Transmitter includes a Not OK/Signal Defeat function to prevent false alarms from faulty 3300 NSv Proximity Probes or loose connections.

Data-Driven Analysis
With a linear range of 0.25–1.65 mm (10–65 mils) and loop resistance tolerance up to 1,000 Ω, the 990-04-70-02-00 Vibration Transmitter ensures accurate, proportional vibration measurement for automation logic and machinery protection systems, even across system lengths of 7.0 meters (23 ft).