Description
Product Overview
The Bently Nevada 990-04-50-01-CN is a loop-powered vibration transmitter engineered for reliable machinery monitoring. It precisely converts vibration velocity into a proportional 4–20 mA output, enabling seamless integration with PLC and DCS systems. Moreover, its compact design combines sensor and transmitter in one robust unit, ensuring continuous performance in harsh industrial environments. This transmitter is widely adopted across oil & gas, power generation, and heavy industrial sectors.
Key Features
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Simple Integration: Standard 4–20 mA output connects directly to PLCs and DCS systems without additional signal conditioning.
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Industrial Reliability: Designed for continuous operation under extreme temperatures and challenging conditions.
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Compact, All-in-One Design: Combines piezoelectric sensor and transmitter in a single unit to simplify installation.
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OEM Friendly: Ideal for compressors, pumps, motors, and fans.
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Cost-Effective Monitoring: Provides essential vibration insights without complex or high-cost systems.
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Certified Safety: CE, ATEX, and IECEx approvals ensure safe use in hazardous environments.
Technical Specifications
| Feature | Details |
|---|---|
| Transmitter Type | 2-wire, loop-powered |
| Measurement Parameter | Vibration velocity |
| Sensor Element | Piezoelectric |
| Output Signal | 4–20 mA proportional to vibration amplitude |
| Sensitivity | 50 mm/s (configurable) |
| Power Supply | Loop-powered via 24 VDC typical |
| Operating Temperature | –40°C to +85°C |
| Housing | Industrial-grade sealed stainless steel |
| Mounting | Direct machinery installation |
| Cable Connection | Standard two-wire system |
Typical Applications
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Rotating Machinery Monitoring: Compressors, pumps, motors, and fans.
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Industrial Automation Integration: Plug-and-play connection to DCS or PLC systems.
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Predictive Maintenance Programs: Early detection of abnormal vibration to prevent costly failures.
FAQ
Q1: Can this transmitter work in hazardous environments?
A1: Yes, it carries ATEX and IECEx certifications for safe operation in explosive atmospheres.
Q2: How does it connect to a PLC or DCS?
A2: It provides a standard 4–20 mA output compatible with most PLC and DCS input modules.
Q3: What machinery types is it suitable for?
A3: The device is ideal for compressors, pumps, motors, and fans across multiple industries.
Q4: What temperature range can it handle?
A4: The transmitter operates reliably between –40°C and +85°C.
Features
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