3 Axis Accelerometer Sensor, RS232 Output, ±2g to ±40g

This 3-axis digital accelerometer is designed for simultaneous X, Y and Z acceleration measurement in industrial monitoring and testing applications. It converts measured acceleration into digital data for transmission through RS232 with Modbus RTU communication, allowing easy integration into compatible monitoring, control and data acquisition systems. With multiple measuring ranges available, it can be used for machinery vibration monitoring, structural testing, fatigue analysis, vehicle testing and other motion measurement applications.

Parameters

Best For

3-axis digital accelerometer is best suited for applications that require simultaneous X/Y/Z acceleration measurement and direct digital data acquisition.

• Machine condition monitoring: Monitor acceleration and low-frequency vibration on motors, engines, rotating machinery and other industrial equipment.
• Structural monitoring: Measure vibration and acceleration on bridges, structures and other monitored assets.
• Fatigue monitoring and testing: Record acceleration data for fatigue analysis, repeated-load testing and long-term condition monitoring.
• Vehicle and machinery testing: Capture acceleration and impact events on automobiles, road rollers and large machinery.
• Wind power equipment: Monitor motion and vibration in wind power generation equipment and related structures.

For higher-frequency vibration measurements, consider an IEPE or piezoelectric accelerometer with a wider frequency response.

Compatible With

The accelerometer can be integrated into measurement and monitoring systems that provide a compatible serial communication interface and 9–36 VDC power supply.

Typical compatible equipment includes: Industrial PCs and computers with RS232 communication, PLCs or industrial controllers with compatible serial communication, data acquisition and monitoring systems, serial communication gateways or converters, and vibration or structural monitoring systems.

When connecting to a PLC, PC, or data logger, verify the electrical interface, communication protocol, baud rate, device address, and register configuration before commissioning.

Dimensions of Accelerometer Sensor (unit: mm)

Dimensions of Mounting Fittings (unit: mm)

How to Select the Measuring Range

Choose the smallest measuring range that safely covers the maximum acceleration expected in your application. A lower range provides more usable measurement detail for small acceleration changes, while a higher range provides more headroom for large vibration, shock, and impact events.

Selection tip: If the expected peak acceleration is close to the selected full-scale range, choose the next higher range to avoid measurement saturation.

How to Select the Installation Method

Note: For vibration measurement, the sensor should be mounted firmly to the monitored surface. A loose or flexible mounting connection can affect the measured vibration response.

Details

Wiring/Installation

RS232 Wiring

Installation and Wiring Guide

• Mount the accelerometer securely to the measurement surface and confirm the X, Y, and Z measurement directions before collecting data.
• Disconnect power before wiring. Connect the brown wire to the positive 9–36 VDC supply and the black wire to power ground. Connect the RS232 RXD and TXD lines to the corresponding serial communication terminals of the host device.
• After wiring, configure the communication parameters and confirm that acceleration values from all three axes can be read correctly before starting long-term monitoring.

Note: The technical manual may cover additional interface versions. Always follow the wiring diagram for the interface configuration supplied with your sensor.

Applications

Tips: What is Three Axis Accelerometer Sensor?

An acceleration sensor is a sensor that can measure acceleration. It is usually composed of masses, dampers, elastic components, sensitive components, and adaptive circuits. In the process of acceleration, the sensor obtains the acceleration value by using Newton's second law by measuring the inertial force on the mass block. According to the different sensitive components of the sensor, common acceleration sensors include capacitive, inductive, strain, piezoresistive, piezoelectric, etc.