Product Introduction: Built for Harsh Industrial Environments
When vibration monitoring in harsh industrial environments or hazardous areas demands uncompromising reliability, the Vibro Meter 444-311-000-123 CE311 piezoelectric accelerometer provides a robust solution. Part of Meggitt's vibro-meter product line, this sensor eliminates common failure modes such as signal degradation from long cable runs and contamination from cooling fluids, lubricants, or water. Its integrated electronics perform charge-to-current conversion, removing the need for an external signal conditioner and ensuring stable, long-distance signal transmission.
Technical Specifications Breakdown
The Vibro Meter 444-311-000-123 delivers precise performance across critical parameters. Key specs include:
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Sensitivity: 50 µA/g ±5% at 23°C – ensures accurate vibration measurement.
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Dynamic Measurement Range: 0.004 to 40 gpeak – captures both subtle and strong vibrations.
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Frequency Response: 2 to 8000 Hz with ±5% from 6 to 5000 Hz – covers a wide spectrum of machinery frequencies.
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Overload Capacity: Up to 100 gpeak for spikes – withstands transient shocks.
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Hermetic Seal: Stainless steel sensor and protection tube welded together – impervious to 100% relative humidity, oil, steam, and dust.
These specifications directly address common failure modes: the sealed construction prevents moisture ingress, and the integrated electronics avoid signal loss over long cables.
Applications: Vibration Monitoring in Demanding Settings
The Vibro Meter 444-311-000-123 is ideal for continuous vibration monitoring of pumps, compressors, turbines, fans, and motors in refineries, chemical plants, power generation, and offshore platforms. Its Ex-certified versions are suitable for potentially explosive atmospheres (Zone 0, 1, 2). The wide temperature range (−40 to 125°C continuous) and 500 gpeak shock rating make it reliable in extreme conditions.
Installation & Setup Guidance
Mount the Vibro Meter 444-311-000-123 using four M6 x 35 Allen bolts with spring-steel washers, torqued to 15 Nm. The sensor connects via flying leads, and the integral cable (twisted pair, shielded) allows straightforward wiring to monitoring systems. Ensure the mounting surface is clean and flat for optimal coupling. The built-in electronics provide a current-modulated output (2-wire system) that connects directly to a galvanic separation unit or monitoring system.
Maintenance & Reliability
Thanks to its hermetically welded construction, the Vibro Meter 444-311-000-123 requires minimal maintenance. Factory dynamic calibration at 120 Hz and 5 gpeak (23°C) is performed, and no subsequent calibration is necessary. The sealed assembly prevents corrosion and contamination, extending service life and reducing downtime. Periodic inspection of cable integrity and mounting bolts is recommended in high-vibration applications.
Selection Guide & Purchasing Advice
Before ordering the Vibro Meter 444-311-000-123, verify your cable length requirement (standard Ex version with 6 m integral cable is available). Confirm compatibility with your monitoring system (2-wire current-modulated input). For reliable supply and technical support, purchase from PLC Source PRO (available at ubest101). We stock genuine parts to ensure your operations run smoothly.