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

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

3-axis digital accelerometer measures X, Y and Z acceleration with selectable ranges from ±2g to ±40g. Featuring RS232 output, Modbus RTU communication, 500 Hz bandwidth and 9–36 VDC power supply, it is suitable for machinery vibration, structural monitoring, fatigue testing and vehicle applications.

SKU: CCHN-AS-AKF392

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Delivery date: 6-25 days

Overview

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

Model	CCHN-AKF392
Measuring Range	±2g	±4g	±8g	±10g	±20g	±40g
Nonlinearity	<0.5% FS (highest)	<0.8% FS (highest)	<1%FS (highest)	<1%FS (highest)	<1%FS (highest)	<1%FS (highest)
Lateral Vibration Sensitivity Ratio	1%	1%	2%	5%	5%	5%
Cross-axis Sensitivity	1% mA/g	1% mA/g	1% mA/g	2% mA/g	2% mA/g	2% mA/g
Resonance Frequency	2.4kHz	2.4kHz	2.4kHz	5.5kHz	5.5kHz	5.5kHz
Deviation Calibration	<1mg
Measuring Axis	X, Y, Z
Power-On/Off Repeatability (mg) (highest)	<2
Deviation Temperature Coefficient	0.01%/°C (Typical value)
Resolution/ Threshold	<1@1Hz (mg) (highest)
Bandwidth (-3 dB)	500 Hz
Standard Protocol Output Rate	5Hz, 10Hz, 25Hz, 50Hz, 100Hz, 200Hz, 500Hz, 1000Hz
Modbus RTU Output Rate	10Hz, 25Hz, 50Hz
Output Interface	RS232/ Modbus-RTU
Communication Protocol	Modbus RTU
Reliability	MIL-HDBK-217, Grade 2
Shock Resistance	100g@11ms, Triaxial and Identical (Half Sine Wave)
Recovery Time	<1ms (1000g, 1/2 Sin 1ms, Shock Acting On The i Axis)
Vibration	20g Rms, 20-2000Hz (Random Noise, o, p, i Per Axis For Action 30 Minutes )
Input (Vdd_Vss)	9-36 VDC
Current Consumption	<60mA @ 12 VDC
Connector	Industrial standard M12 connector
Weight	Sensor net weight: 82g Magnetic base: 48g L-type adapter plate: 20g
Dimension	Sensor size: 34.334.338.5mm Magnetic adsorption base size: 34.2334.236mm L-type adapter plate size: 364415mm
Certificate	CE
Warranty	12 months

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)

Dimension of 3 axis accelerometer sensor

Dimensions of Mounting Fittings (unit: mm)

Mounting dimension of 3 axis accelerometer sensor

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.

Measuring Range	Recommended For
±2g / ±4g	Low acceleration, structural movement, low-frequency vibration and precision monitoring
±8g / ±10g	General machinery, vehicle motion and moderate vibration
±20g	Higher vibration levels and machinery with larger acceleration peaks
±40g	Shock, impact and high-dynamic acceleration 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

Installation	Best For
Standard Installation	Fixed installations where the accelerometer can be mounted directly to the measurement surface
Magnetic Base	Temporary tests, field measurements, and applications requiring frequent sensor repositioning on ferromagnetic surfaces
L-Type Adapter Plate	Installations where the sensor requires side mounting or a 90° mounting arrangement

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

3 axis accelerometer sensor details

Wiring/Installation

Electrical connection of 3 axis acceleromrter sensor

RS232 Wiring

Pin	Wire Color	Function
Pin 1	Brown	+9–36 VDC
Pin 2	White	RS232 RXD
Pin 3	Blue	RS232 TXD
Pin 4	Black	GND / Power Negative

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

3 axis accelerometer 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.