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        • Lifecycle status

          Discontinued / Obsolete by OEM
          Apter Power supports CE281 legacy sourcing, certification review and documentation.

        CE281 444-281-000-111

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Vibro-Meter CE281 444-281-000-111 is an Ex piezoelectric accelerometer with integral charge-to-current electronics. It measures high-temperature machinery vibration and transmits a 10 µA/g current signal.
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        Ships by Thursday, October 29
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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.
        Shipping Mode
        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.
        Parts Availability
        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 CE281 444-281-000-111

        • Manufacturer:
          Vibro-Meter
        • Part Number:
          CE281 444-281-000-111
        • Product Family:
          CE281 Piezoelectric Accelerometers
        • Product Type:
          Piezoelectric Accelerometer Vibration Sensor
        • Stock:
          1
        • Product function:
          Ex piezoelectric accelerometer with integral electronics
        • Measurement principle:
          Symmetrical shear-mode piezoelectric element
        • Signal transmission:
          Current-modulated output, 2-wire
        • Sensitivity:
          10 µA/g ±5%
        • Input supply:
          15 to 28 VDC
        • Bias current:
          5 to 8 mA
        • Internal processing:
          Integral charge-to-current conversion
        • External interface:
          Galvanic separation unit and/or monitoring electronics
        • Dynamic measurement range:
          0.0001 to 200 g peak
        • Overload capacity:
          Up to 2,000 g peak
        • Linearity:
          ±1% over dynamic range
        • Transverse sensitivity:
          Below 3% at 15 Hz and 5 g
        • Mounted resonant frequency:
          25 kHz typical
        • Frequency response:
          3 to 7,000 Hz, ±5%
        • Sensor operating temperature:
          -55 to 260°C continuous
        • Sensor short-term survival:
          -70 to 290°C for 15 minutes maximum
        • Electronics operating temperature:
          -40 to 125°C continuous
        • Sensor shock acceleration:
          2,000 g peak, half-sine 1 ms
        • Electronics shock acceleration:
          500 g peak, half-sine 1 ms
        • Weight:
          1.5 lbs (0.68 kg)
        • Estimated shipping dimensions:
          30.5 × 30.5 × 15.2 cm
        • Tariff Code:
          8537101190
        • 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 Applications Temperature Range Operating Environment Monitoring

        Features:

        • Identifies a model-specific CE281 measuring-chain component for compatible Vibro-Meter installations.
        • Maintains the documented electrical connection between the associated sensor and monitoring equipment.
        • Uses complete order number 444-281-000-111 for length and construction matching.
        The selected configuration is the CE281 assembly identified by the full 444-281-000-111 order code.

        It forms part of a matched machinery-measurement chain rather than operating as a stand-alone monitor.

        Confirm connector ends, route length, sensor family, environment and installed chain sensitivity before replacement.

        Availability is subject to Apter Power inventory and sourcing confirmation.
        Verified resources for Vibro-Meter 444-281-000-111: 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.
        • Completes the documented sensor connection in rotating-machinery monitoring and protection systems.
        • Supports installation routes between field transducers and compatible signal-conditioning equipment.
        • Provides an exact-order spare where cable construction and termination must remain unchanged.
        • Use the assembly only within the temperature limits specified for its cable and connector materials.
        • Keep terminations away from local heat sources that can exceed the qualified operating range.
        • Allow stored components to reach cabinet temperature before connection to avoid condensation.
        • Protect connectors from moisture, oil ingress, conductive debris and mechanical damage.
        • Route the cable with the documented bend radius and strain relief throughout the installation.
        • Separate the measuring path from high-energy wiring that can introduce interference or physical risk.
        • The assembly carries the sensor signal used by the connected machinery-monitoring channel.
        • Unexpected bias or dynamic response should be checked against connector condition and complete chain continuity.
        • Post-installation verification should compare the measurement with the established channel baseline.
        Description
        Vibro-Meter CE281 444-281-000-111 combines a shear-mode piezoelectric sensing element with integral charge-to-current electronics for vibration monitoring in demanding machinery environments. The sensor and electronics are case-isolated, and the documented 10 µA/g current-modulated output supports stable transmission over extended cable runs. This integrated arrangement eliminates a separate charge amplifier at the hot measurement point and makes the transmitted current less dependent on cable capacitance over the installed route.

        The sensing head operates continuously at temperatures up to 260°C while the attached electronics remain outside the hottest measurement point. A hermetically welded assembly protects the internal low-noise cable and electronic section from coolant, lubricant, water, steam and other industrial contaminants. The split thermal design lets the sensing element remain close to the machine surface while the electronics operate in a lower-temperature zone, preserving both measurement performance and service life.

        This legacy 444-281-000-111 ordering number is listed in the official Ex product register and must be treated as a complete certified assembly. Mounting, connector style, associated isolation hardware and hazardous-area loop parameters require verification before replacement or recommissioning. Inspection must treat the sensor head, protection tube, internal cable and electronics housing as one inseparable item; cutting or splicing destroys the environmental and certification integrity.
        Alternative Names
        CE281 444-281-000-111 CE281 444281000111 CE281 444 281 000 111 444-281-000-111 CE281 Vibro-Meter 444-281-000-111 Parker Meggitt CE281 Ex Accelerometer 444-281-000-111 Piezoelectric Accelerometer CE281 10 µA/g Current-Output Accelerometer
        Technical notes
        Do not cut or separate the welded CE281 444-281-000-111 assembly; verify the hazardous-area loop, connector and mounting before disturbing the installed sensor.
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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 signal does CE281 444-281-000-111 provide?
        It provides a 10 µA/g current-modulated vibration signal from its integral charge-to-current electronics.
        Where is CE281 444-281-000-111 used?
        It monitors machinery where the sensing head faces high temperature and the complete assembly requires hazardous-area consideration.
        Does CE281 444-281-000-111 require external signal conditioning?
        It has integral conversion electronics but still requires a compatible supply, isolation arrangement and monitoring input.
        Can another CE281 configuration replace CE281 444-281-000-111 directly?
        Not without checking the legacy Ex ordering number, connector, mounting, loop parameters and certification requirements.
        Which documents cover CE281 444-281-000-111?
        Use the official CE281 data sheet, Ex product register and vibration-chain installation manual.
        What details are needed to quote CE281 444-281-000-111?
        Provide the complete 444-281-000-111 label, connector and mounting details, cable route, quantity and destination.

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