Product Introduction
In harsh industrial environments, vibration monitoring sensors often fail due to moisture ingress or electronics degradation. The Vibro Meter 444-311-000-113 CE311 piezoelectric accelerometer solves this with its rugged design and integrated electronics. This sensor from Meggitt’s vibro-meter® product line provides reliable machinery protection in hazardous areas.
The 444-311-000-113 features a symmetrical shear-mode measuring element and built-in charge-to-current conversion, eliminating the need for external signal conditioners. Its hermetically sealed construction protects against cooling fluids, lubricants, water, and steam, ensuring long-term performance.
Technical Specifications Breakdown
The Vibro Meter 444-311-000-113 offers key specs critical for precise vibration measurement:
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Sensitivity: 50 µA/g ±5% – delivers accurate output for small and large vibration levels.
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Dynamic Measurement Range: 0.004 to 40 gpeak – covers both subtle and high-amplitude vibrations.
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Frequency Response: ±5% from 6 to 5000 Hz, ±10% up to 8000 Hz – suitable for most rotating machinery.
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Operating Temperature: -40 to 125°C – withstands extreme industrial conditions.
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Hermetic Sealing: Sensor and protection tube are welded, preventing contamination and ensuring reliability.
These specs make the 444-311-000-113 ideal for long-distance signal transmission without degradation.
Industry Applications
The Vibro Meter 444-311-000-113 excels in oil and gas, power generation, and chemical processing where equipment reliability is paramount. For example, in a gas turbine monitoring system, its wide frequency response captures blade pass frequencies, while the hermetic seal withstands harsh lubricants. Another common use is in cooling tower fan vibration monitoring, where the sensor’s long cable length capability allows placement far from monitoring electronics, reducing noise pickup.
Installation & Setup Guidance
Mount the Vibro Meter 444-311-000-113 using four M6×35 Allen bolts at 15 Nm torque. Ensure the mounting surface is flat and clean to avoid strain sensitivity errors. Connect the flying leads as per the 2-wire current-modulated system. Use a shielded twisted pair cable for optimal signal integrity over long distances. No external charge amplifier is needed; supply 15-28 VDC with a bias current of 5.5 to 7.5 mA.
Maintenance & Reliability
The 444-311-000-113 requires minimal maintenance due to its robust design. The hermetically welded sensor and tube eliminate common failure points like moisture ingress. Periodic visual inspection of the cable and protection tube is recommended every six months in corrosive environments. The sensor’s integrated electronics reduce drift; factory calibration at 120 Hz and 5 gpeak ensures accuracy without recalibration.
Selection Guide & Purchasing Advice
When ordering the Vibro Meter 444-311-000-113, confirm your cable length requirements (Ex version with 3 m cable available). Ensure your monitoring system accepts 2-wire current-modulated input. For reliable sourcing, trust PLC Source PRO (available at ubest101). Verify part number matches 444-311-000-113 to avoid compatibility issues.