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          Apter Power delivers factory-calibrated internal-shield components to suppress floor-noise fluctuations, permanently guaranteeing the vital bearing-housing health channels of auxiliary machinery.

        444-680-000-411

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        444-680-000-411 is a Vibro-meter piezoelectric accelerometer with 100 mV/g sensitivity, 3-5000 Hz response, isolated ground, and -55°C to +120°C operation.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 444-680-000-411

        • Manufacturer:
          Vibro-Meter
        • Part Number:
          444-680-000-411
        • Product Family:
          Vibro-Meter
        • Product Type:
          Piezoelectric Accelerometer
        • Stock:
          2
        • Sensitivity:
          100 mV/g
        • Measurement Range:
          ±50 g (peak)
        • Frequency Response (±10%):
          3 to 5000 Hz
        • Frequency Response (±3 dB):
          0.5 to 10,000 Hz
        • Operating Temperature:
          -55°C to +120°C
        • Output Type:
          2-wire voltage (IEPE)
        • Supply Current:
          4 mA constant current
        • Weight:
          0.9 kg
        • Estimated shipping dimensions:
          5.3x2.2x1.9cm
        • Tariff Code:
          9031809090
        • Country of origin:
          Switzerland
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Application Performance & Efficiency Application Scenarios

        Features:

        • 444-680-000-411 provides 100 mV/g sensitivity with ±10% response from 3 to 5000 Hz.
        • Isolated ground with Faraday shield prevents ground loops and frame voltage disturbances.
        • Shear mode operation with 2-pole filter, hermetically sealed, -55°C to +120°C operation.
        The 444-680-000-411 delivers a sensitivity of 100 mV/g, providing a strong signal output that is compatible with standard IEPE signal conditioners and monitoring systems. This high sensitivity ensures that even low-level vibrations are accurately captured, making the 444-680-000-411 suitable for detecting early signs of machinery degradation such as unbalance, misalignment, and bearing wear. The frequency response is ±10% from 3 to 5000 Hz, covering the fundamental vibration frequencies of most industrial rotating machinery including pumps, compressors, turbines, and motors. The extended ±3 dB range from 0.5 to 10,000 Hz allows the 444-680-000-411 to capture both low-frequency shaft events and high-frequency gear mesh and blade pass frequencies.

        The 444-680-000-411 is designed with an isolated ground and integrated Faraday shield, providing exceptional immunity to electrical interference common in industrial environments. Ground loops—unwanted currents that flow when multiple devices are grounded at different points—are a frequent source of measurement error in vibration monitoring systems. The isolated ground on the 444-680-000-411 breaks these paths, ensuring that the signal transmitted to the monitoring system accurately represents the mechanical vibration without contamination from electrical noise.

        The 444-680-000-411 utilizes shear mode piezoelectric technology, where the sensing element is configured to detect shear stress rather than compression. This design provides several advantages over compression mode accelerometers: it is inherently less sensitive to thermal transients (temperature changes that can cause false outputs), and it offers a wider frequency response and better linearity. The 444-680-000-411 is hermetically sealed, meaning the internal electronics are completely protected from moisture, dust, and corrosive contaminants.

        The 444-680-000-411 Vibro-meter Piezoelectric Accelerometer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

        Vibro-meter 444-680-000-411 Piezoelectric Accelerometer Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Vibro-meter 444-680-000-411 Piezoelectric Accelerometer Specs

        General

        • Manufacturer Vibro-meter
        • Model 444-680-000-411
        • Condition New Original ready stock
        • Product Family GSI124 244-124-000-022,TQ412 S3960 111-412-000-013
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Power Plants & Utilities: Captures structural and casing vibration profiles on steam/gas turbines, massive hydro-generators, and auxiliary water pumps.
        • Oil, Gas, and Petrochemicals: Monitors structural integrity on heavy centrifugal gas compressors, multiphase pumps, and high-velocity cooling fans.
        • Mining & Heavy Manufacturing: Affixed directly to primary components in rock crushers, massive cement mills, rolling mill gearboxes, and industrial vibrating screens.
        • Hazardous Environments: Built for long-term survival in extreme conditions prone to corrosive chemical vapors, intense oil mist, and high moisture levels.
        • 2-Wire Voltage Transmission: Operates seamlessly over standard two-wire industrial paths powered by a continuous constant current supply. This design allows efficient, noise-free signal transmission over hundreds of meters without requiring field-side amplifiers.
        • Ground Isolation Architecture: Engineered with an isolated electrical ground and an integrated internal Faraday shield. This eliminates disruptive ground loops and stray frame voltages, protecting data integrity from electromagnetic interference.
        • Thermal Bias Voltage Stability: Maintains exceptional bias voltage stability and an ultra-low operational noise floor even at elevated process temperatures. This limits thermal drift and prevents baseline distortion.
        • Machinery Protection Interlocking (MPS): Integrates with rack systems like the Vibro-Meter VM600 Mk2. If structural vibration amplitudes exceed designated safety thresholds, it triggers an emergency automatic trip to stop catastrophic mechanical failure.
        • Predictive Maintenance (CBM): Continually streams clean, unfiltered high-frequency time-domain data to diagnostic platforms like VibroSight software. Engineers use this data for fast-fourier transform (FFT) spectrum analysis to spot early-stage bearing pitting, rotor unbalance, and gear mesh misalignment.
        • Local Balance-of-Plant (BOP) Monitoring: Frequently deployed on secondary, smaller supporting machinery (such as lubrication pumps or exhaust fans) hooked into distributed field systems like VibroSmart networks. This ensures comprehensive plant asset coverage without high infrastructure costs.
        Description
        The 444-680-000-411 is a CE 680 M411 piezoelectric accelerometer designed for industrial machinery vibration monitoring. This 444-680-000-411 sensor features shear mode operation with a 2-pole low-pass filter for resonance suppression. It uses the industry-standard 2-wire voltage transmission technique with a 4 mA constant current supply, delivering 100 mV/g sensitivity. 

        The 444-680-000-411 provides an isolated ground with a Faraday shield, preventing ground loops and frame voltage disturbances that could affect measurement accuracy. The 444-680-000-411 shows extremely low noise levels and exceptional bias voltage stability at elevated temperatures. 

        The 444-680-000-411 is designed for medium temperature industrial applications, making it suitable for turbines, compressors, pumps, and other rotating machinery. The 444-680-000-411 is housed in a rugged package and is hermetically sealed to withstand moisture, dust, and other contaminants.

        The 444-680-000-411 is compatible with standard IEPE (Integrated Electronics Piezo-Electric) signal conditioners and monitoring systems. The 444-680-000-411 provides a bias voltage that remains stable even at elevated temperatures, ensuring consistent performance across the full operating range.

        Alternative Names
        444-68O-OOO-411 444-680-000-4II 444 680 000 411 S3960 444-680-000-511 S3960 444-680-000-511 GSI124 244-124-000-022 IQS450 204-450-000-001 VM600 MPC4 200-510-070-113
        Technical notes
        The 444-680-000-411 is a CE 680 M411 piezoelectric accelerometer with 100 mV/g sensitivity, shear mode design, and isolated ground. Frequency response: ±10% (3-5000 Hz), ±3 dB (0.5-10000 Hz). Operates -55°C to +120°C. Features 2-pole low-pass filter, hermetic sealing, and 2-wire IEPE output. Ideal for industrial machinery vibration monitoring.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What is the sensitivity of 444-680-000-411?
        444-680-000-411 has a sensitivity of 100 mV/g, providing a strong signal output for industrial vibration monitoring applications.
        What is the temperature range of 444-680-000-411?
        444-680-000-411 operates from -55°C to +120°C, making it suitable for medium temperature industrial environments.
        Is 444-680-000-411 ground isolated?
        Yes, 444-680-000-411 features an isolated ground with a Faraday shield, preventing ground loops and frame voltage disturbances.
        What is the frequency response of 444-680-000-411?
        444-680-000-411 provides ±10% response from 3 to 5000 Hz and ±3 dB from 0.5 to 10,000 Hz for wideband vibration measurement.

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