Why the 444-311-000-113 CE311 Accelerometer Is a Smart Choice for Vibration Monitoring
When you need reliable vibration data from harsh industrial environments or hazardous areas, the 444-311-000-113 from Vibro Meter's CE311 series delivers. This piezoelectric accelerometer is engineered to withstand extreme conditions while providing accurate, long-distance signal transmission. Its integrated electronics eliminate the need for external charge amplifiers, simplifying installation and reducing potential failure points.
Key Technical Specifications That Matter
The 444-311-000-113 offers a sensitivity of 50 µA/g ±5%, ensuring precise measurement across a dynamic range of 0.004 to 40 gpeak. Its frequency response spans 2 to 8000 Hz, with a mounted resonant frequency of 20 kHz typical. The sensor operates continuously from -40 to 125°C and can survive short-term exposure up to 150°C for 15 minutes. These specs make it suitable for continuous monitoring in demanding applications.
Power requirements are straightforward: 15 to 28 VDC with a bias current of 5.5 to 7.5 mA. The current-modulated output (2-wire system) supports transmission over long distances without signal degradation. Linearity is within ±1% over the dynamic range, and transverse sensitivity is less than 3% at 15 Hz with 5 g. For shock events, the sensor can handle up to 500 gpeak (half-sine wave, 1 ms duration).
Real-World Applications in Harsh Environments
In a typical chemical processing plant, the 444-311-000-113 monitors vibration on pumps and compressors exposed to corrosive atmospheres. Its hermetically welded stainless steel construction (sensor in 1.4441, protection tube in 1.4541) resists cooling fluids, lubricants, water, steam, and sea-salt atmospheres. This makes it a reliable choice for long-term vibration monitoring in such settings.
Another common use is in oil and gas facilities where explosive atmospheres require Ex-certified equipment. The CE311 is available in Ex versions for potentially explosive environments, providing the same robust performance. The integral cable with flying leads simplifies connection to monitoring systems, and the flexible stainless-steel hose protects the cable from mechanical damage.
How the 444-311-000-113 Solves Integration Challenges
The integrated electronics perform charge-to-current conversion internally, so you don't need an external signal conditioner. This reduces cabinet space and wiring complexity. The sensor connects directly to a galvanic separation unit or monitoring system electronics, making integration straightforward. For existing systems, the 2-wire current loop interface is widely compatible with standard industrial input modules.
Business Value: Reduced Downtime and Lower Total Cost of Ownership
By providing accurate, real-time vibration data, the 444-311-000-113 helps you detect machinery faults early, preventing unplanned downtime. Its robust design minimizes replacement frequency, lowering long-term costs. The sensor's long-distance signal transmission capability means you can place monitoring electronics in a safe area while the sensor operates in hazardous zones, reducing safety risks and installation complexity.
Frequently Asked Questions About the 444-311-000-113
What is the mounting torque for the 444-311-000-113?
The sensor mounts using four M6 × 35 Allen bolts (12.9 steel) with spring-steel washers, torqued to 15 Nm (11.1 lb-ft). This ensures proper mechanical coupling for accurate vibration measurement.
Can the 444-311-000-113 be used in explosive atmospheres?
Yes, the CE311 series includes Ex versions certified for use in potentially explosive atmospheres. The standard version described here is suitable for harsh industrial environments; for hazardous areas, order the Ex version with the appropriate part number.
What is the cable weight and length for the 444-311-000-113?
The sensor itself weighs approximately 245 g (0.54 lb). The integral cable with flexible stainless-steel hose weighs about 135 g/m (0.091 lb/ft). The standard version comes with a 3 m integral cable, as noted in the ordering information.
Why Choose BluePLC Industrial for Your Vibro Meter Needs
BluePLC Industrial offers genuine Vibro Meter 444-311-000-113 accelerometers with reliable supply and fast shipping. Our team understands industrial automation requirements and can help you select the right sensor for your application. Contact us for pricing and availability.
