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SHENZHEN RION TECHNOLOGY CO.,LTD
Rion AKM398 Vibration Sensor

Rion AKM398 Vibration Sensor

Product catalog summary

Introduction
The AKM398 is a three-axis MEMS current mode vibration sensor designed for various applications such as vibration and impact testing. It features a single crystal silicon capacitive sensor with low power consumption and stable output.

Certifications and Legal Disclaimer
The sensor is CE and RoHS certified and holds a China National Intellectual Property Appearance Patent. It is intended for commercial use only and is prohibited for illegal activities, including military and weapons research. Unauthorized transfer to third parties is not allowed.

Product Features

Three-axis measurement (X, Y, Z)
Output current: 4-20 mA
Power supply voltage: 9-36V
Operating temperature: -40℃ to +85℃
Excellent deviation stability and environmental performance

Applications

Bridge and automobile monitoring
Wind power and medical equipment
Large machinery and engine monitoring
Low frequency vibration and automatic monitoring
Crash recording and fatigue monitoring

Specifications

Measurement range: ±2g to ±40g
Deviation calibration: <1 mg
Sensitivity: 0.2 to 4 mA/g
Response frequency: 500 Hz
Protection: IP67
Material: Aerospace aluminum
Weight: ≤116g

Ordering Information
Example: AKM398-02-T indicates a ±2g measurement range with standard installation.

Electrical Connection

Red: Positive pole of power supply (DC9-36V)
Black: Negative pole of power supply (GND)
White: X-axis current signal
Green: Y-axis current signal
Gray: Z-axis current signal

Additional Information
Includes acceleration calculation formula and sensitivity amplitude-frequency response characteristic curve.

Catalog excerpts

MEMS Current Mode Vibration sensor Technical Manual

Open the catalog to page 1

AKM398 MEMS Current Mode Vibration sensor ○ CE certification: AT18250EC101485 ○ RoHS certification: 18300RC20410801 ○ China National Intellectual Property Appearance Patent (Patent No .: ZL 202130804901.7) ○ Revision time:2025-11-24 Note: Product functions, parameters, appearance, etc. will be adjusted as the technology upgrades. Please contact our pre-sales business to confirm when purchasing. Disclaimer This product is developed exclusively for commercial applications and is prohibited from being used for illegal purposes, such as military activities, research related to nuclear, chemical,...

Open the catalog to page 2

The AKM398 three-axis Vibration sensor is a widely used Vibration sensor series product independently developed and produced, which can be applied in multiple fields such as vibration testing and impact testing. The product adopts analog current output. AKM398 is a single crystal silicon capacitive sensor, consisting of a silicon chip that has undergone micro mechanical processing, a low-power ASIC for signal adjustment, a microprocessor for storing compensation values, and a temperature sensor. This product has low power consumption, has been calibrated, has a sturdy structure, and stable output....

Open the catalog to page 3

Output current Operating current consumption aerospace aluminum Product net weight: <116g, magnetic base: <50g Product size: L36 * W32 * H24mm Size of magnetic adsorption base plate: L36 * W32 * H8.1mm ► PRODUCT ORDERING INFORMATION ► PRODUCT MEASUREMENT DIRECTION AKM398- E.g: AKM398-02-T: indicates ± 2g measure range/standard installation.

Open the catalog to page 4

► ACCELERATION CALCULATION FORMULA r — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — Acceleration = (Output Current-12 MA) * Sensitivity Example: AKF398-02-T (± 2g measurement range, 4 ~ 20 MA current output range) Angular sensitivity = 16^4 = 4 MA/G Shell size: L36 Installation size: L29 Mounting screws: 4 M4 screws Magnetic bottom plate size: L36 x W32 x H11.6mm Installation size: L29 x W25 x H8.1mm Installation method: strong magnetic adsorption

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Y-axis current signal Z-axis current signal ► SENSITIVITY AMPLITUDE-FREQUENCY RESPONSE CHARACTERISTIC CURVE (reference condition: f=20.000Hz, a=2.000G) SENSITIVITY AMPLITUDE-FREQUENCY RESPONSE CHARACTERISTIC CURVE SENSITIVITY LINEARITY GRAPH

Open the catalog to page 6

All SHENZHEN RION TECHNOLOGY CO.,LTD catalogs and technical brochures

Archived catalogs

SCA116T/SCA126T
9 Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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