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Shenzhen Ruicom Technology Co., Ltd.
GKC378 MEMS current-type Vibration sensor

GKC378 MEMS current-type Vibration sensor

Product catalog summary

Product Introduction
The GKC378 vibration sensor utilizes monocrystalline silicon MEMS capacitive sensing technology, offering an analog current output signal ranging from 4mA to 20mA. It features low-noise micro mechanical capacitive components and built-in signal conditioning and compensation circuits to minimize temperature drift and process deviation effects, ensuring good linearity and long-term stability.

Main Technical Specifications:

Output Signal: DC coupled 4mA to 20mA current signal
Measurement Range: Configurable to ±2g, ±4g, ±8g, or ±16g
Frequency Response: 0 Hz to 200 Hz
Electromagnetic Compatibility: Integrated EMC/RFI shielding
Power Consumption: Low-power circuit architecture
Self-Testing Function: Built-in capability for verifying sensor and signal link status

This sensor is ideal for industrial equipment vibration monitoring, structural health assessment, and motion control.

Application Scope

Bridge impact monitoring
Machine control
Structural monitoring
Low-frequency vibration monitoring

Technical Characteristics

Triaxial MEMS Vibration sensor
4~20mA output
Measurement range ±2g~±16g
Self-test function
IP67 protection rating

Specifications

Measurement Range: ±2g~±16g
Measuring Axis: X, Y, Z Axis
Resolution: <1mg
Zero-Point Acceleration: 12mA (current output)
Full-Range Output: 4-20mA (current output)
Linearity: 1%
Power-On/Power-Off Repeatability: <2mg
Response Frequency: 0 - 200Hz with integrated low-pass filter
Bandwidth: 200Hz @ 3Db
Shock: >100g@11ms (half sine wave)
Shock Recovery Time: <1 ms
Operating Temperature Range: -40~+85℃
Storage Temperature Range: -40~+85℃
Supply Voltage: 9-36V DC
Maximum Power Consumption: 35-38mA @12V DC
Noise Density: <25µg/√ Hz @ ±2g, <60µg/√ Hz @ ±16g
Maximum Calibration Uncertainty: <1mg
Electrical Protection: EMC and RFI shielding
Reliability: MIL-HDBK-217 Level 2
Self-Test: ±1g @ 10Hz ST line grounding
Protection Class: IP67
Product Dimensions: L55×W37×H29mm
Product Weight: ≤100g (excluding cable)

Order Selection
Model: GKC378
Measurement Range Options: 02: ±2g, 04: ±4g, 10: ±10g, 16: ±16g
Output Signal: A1: 4~20mA
Example: GKC378-02-A1: ±2g Measurement Range, output current 4~20mA.

Size and Installation

Shell Size: L55×W37×H29mm
Installation Size: L48×W28.6×H4mm
Mounting Screws: 3 M4 screws
Shell Material: Aluminum alloy

Electrical Parameters

PIN1/Brown: DC9～36V
PIN2/White: X-axis current signal
PIN3/Blue: Y-axis current signal
PIN4/Black: GND
PIN5/Grey: Z-axis current signal

Self-Test Function

Self-Test Operation: Short-circuit the self-test cable to ground to enter self-test mode. X, Y, and Z axis output terminals will generate ±1g and 10Hz square wave signals.
Self-Test Completion: Leave the self-test cable floating after completion.
Precautions: Keep the self-test cable floating during normal operation to avoid affecting measurement accuracy. Do not short-circuit to power supply to prevent sensor damage.

Catalog excerpts

GKC378 MEMS current-type Vibration sensor-1

GKC378 MEMS current-type Vibration sensor Product manual V1.1-20260514

Open the catalog to page 1

GKC378 MEMS current-type Vibration sensor-2

Technical Characteristics ❖ Triaxial MEMS Vibration sensor; Product Introduction- The GKC378 vibration sensor is based on monocrystalline silicon MEMS capacitive sensing technology, providing an analog current output signal of 4mA to 20mA. This product uses low-noise micro mechanical capacitive sensitive components and built-in signal conditioning and compensation circuits to suppress the effects of temperature drift and process deviation on the output, thereby achieving good linearity and long-term stability. The main technical specifications are as follows: -Output signal: DC coupled 4mA to...

Open the catalog to page 2

GKC378 MEMS current-type Vibration sensor-4

Shell size: L55xW37xH29mm Installation size: L48xW28.6xH4mm Mounting screws: 3 M4 screws Shell material: aluminum alloy

Open the catalog to page 4

GKC378 MEMS current-type Vibration sensor-5

- Short-circuit the self-test cable (Self-Test) to ground (GND). The sensor enters self-test - At this time, the X, Y, and Z axis output terminals will generate ±1g and 10Hz square wave signals respectively, used to verify whether the sensor and output circuit are working properly. - After the self-test is complete, the self-test cable must be left floating (disconnected from GND). - During normal operation, the self-test cable must be kept floating; otherwise, measurement accuracy will be affected. - Do not short-circuit the self-test cable to the power supply (Vcc), as this may damage the sensor....

Open the catalog to page 5

GKC378 MEMS current-type Vibration sensor

GKC378 MEMS current-type Vibration sensor

Catalog excerpts

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