CE 680 M511 industrial piezoelectric accelerometer



CE 680 M511: High performance piezoelectric accelerometer designed specifically for industrial vibration monitoring

In modern industrial environments, status monitoring and fault warning of mechanical equipment have become key links in ensuring production safety and improving operation and maintenance efficiency. As one of the most important technical means, vibration monitoring imposes strict requirements on the performance, reliability, and environmental adaptability of sensors. The CE 680 M511 piezoelectric accelerometer launched by Vibro Meter is a versatile vibration sensor designed to address these challenges. It is widely used in medium temperature industrial scenarios and has excellent frequency response, temperature stability, and structural reliability.

Product Overview and Design Features

CE 680 M511 adopts a piezoelectric ceramic shear mode design, effectively avoiding output interference caused by thermal transients and ensuring measurement stability in environments with severe temperature changes. Its working temperature range is -55 ° C to+120 ° C, covering the vast majority of industrial application scenarios. The sensor adopts a fully sealed structure, and the housing is made of 316L stainless steel material, which has good corrosion resistance and mechanical strength, and is suitable for harsh environments such as humidity, oil pollution, dust, etc.

This sensor adopts the commonly used two-wire voltage transmission technology in the industry, relying on constant current power supply, with an output signal sensitivity of 100 mV/g, supporting long-distance signal transmission and strong anti-interference ability. In addition, CE 680 M511 adopts an insulated casing and internal shielding design, effectively eliminating the interference of grounding circuit and casing voltage on measurement signals, ensuring the purity and accuracy of data acquisition.

Analysis of Core Technical Parameters

Frequency response and dynamic performance

The frequency response error of CE 680 M511 does not exceed ± 5% in the range of 3 Hz to 5 kHz, and ± 10% in the range of 1 Hz to 9 kHz. The low frequency can be extended to 0.5 Hz (-3 dB), and the high frequency can reach 14 kHz. Its resonant frequency is as high as 30 kHz, the dynamic range is up to 80 g, and the linearity is better than 1% within the full range. It is suitable for monitoring mid to high frequency vibrations and capturing impact events.

Temperature stability and noise control

Within the temperature range of -55 ° C to+120 ° C, the typical sensitivity deviation is ± 5%, demonstrating excellent temperature stability. In terms of electrical noise, broadband noise (2.5 Hz-25 kHz) has an equivalent acceleration of only 700 μ g, and spectral noise is as low as 10 μ g/√ Hz and 5 μ g/√ Hz at 10 Hz, 100 Hz, and 1 kHz frequency points, respectively, making it suitable for high-precision vibration analysis and early fault detection.

Electrical and environmental adaptability

The working current of the sensor is 2-10 mA, the supply voltage is 18-30 VDC, and the bias output voltage is stable at 12 VDC. It has reverse polarity protection and an output impedance not exceeding 100 Ω. In terms of environmental adaptability, CE 680 M511 can withstand a vibration limit of 500 g and an impact limit of 5000 g, with extremely low substrate strain sensitivity and ESD protection and electromagnetic shielding capabilities.

Mechanical structure and installation configuration

CE 680 M511 adopts 1/4-28 UNF threaded mounting holes, with a recommended installation torque of 3 Nm. The output interface is a 2-pin MIL-C-5015 type, and the matching connector is MS3106F-10SL-4S or equivalent model. The sensor weighs about 90 grams, has a compact structure, and is suitable for various installation scenarios.

To meet different on-site installation needs, this product offers a variety of optional accessories, including:

EC 318/EC 319 cables

MA 122 series installation adapter (supports 1/4-28 UNF to M6 thread)

Insulation bolts, etc

Application scenarios and industry value

CE 680 M511 is suitable for vibration monitoring and fault diagnosis of various rotating machinery, pumps, fans, compressors, gearboxes, and generator sets. Its excellent frequency response and low noise characteristics enable it to capture various vibration events from low-frequency oscillations to high-frequency impacts, providing reliable data support for predictive maintenance.

In heavy industries such as energy, petrochemicals, metallurgy, rail transportation, and ship power, this sensor has become an ideal choice for long-term online monitoring systems due to its fully sealed, anti-interference, and high and low temperature resistance characteristics. Its factory dynamic calibration mechanism also reduces maintenance and recalibration costs in the later stage, improving the economic efficiency of the entire lifecycle use.

Summary

The CE 680 M511 piezoelectric accelerometer is an industrial grade vibration sensor that combines high performance, high reliability, and strong environmental adaptability. Its shear mode design, wide frequency response, low-temperature drift, fully sealed structure and other characteristics enable it to maintain stable output and long service life in harsh industrial environments. For industrial users who pursue precise vibration monitoring and equipment health management, CE 680 M511 is not only a sensor, but also an important tool for improving equipment reliability and achieving intelligent operation and maintenance.