MEMS vibration sensor GKC370

for machine monitoringfor machine condition monitoringfor preventive maintenance

Product Introduction
The GKC370 is a triaxial MEMS capacitive vibration sensor providing analog voltage output (typical 0.5–4.5 V, zero point 2.5 V). Designed for industrial condition monitoring and rotating machinery diagnostics, the sensor integrates temperature/process compensation to ensure linearity and long-term stability for reliable vibration measurement.

Technical features

• Integrated EMC and RFI shielding
• Low-power operation mode
• Configurable measurement ranges: ±2g, ±4g, ±8g, ±16g
• DC-coupled analog voltage output interface
• Frequency response: 0 Hz to 200 Hz (integrated low-pass filtering)
• Built-in self-test for real-time status verification

Highlights

• Triaxial MEMS sensing (X, Y, Z)
• Analog voltage output, typical 0.5–4.5 V
• Selectable measurement ranges ±2g to ±16g
• Onboard self-test function
• Ingress protection IP67

Performance Parameters
Model: GKC370
Measurement Range: ±2g ~ ±16g (configurable)
Measuring Axis: X, Y, Z axis
Resolution: <1 mg
Zero-Point Acceleration: 2.5 V (voltage output)
Full-Range Output: 0.5–4.5 V (voltage output)
Linearity: 1%
Power-On/Power-Off Repeatability: <2 mg
Response Frequency: 0–200 Hz (integrated low-pass filter)
Bandwidth: 200 Hz @ 3 dB
Shock: >100 g @ 11 ms (half sine wave)
Shock Recovery Time: <1 ms
Operating Temperature Range: -40 ~ +85 °C
Storage Temperature Range: -40 ~ +85 °C
Supply Voltage: 9–36 V DC
Maximum Power Consumption: 35–38 mA @ 12 V DC
Noise Density: <25 µg/√Hz @ ±2g; <60 µg/√Hz @ ±16g
Maximum Calibration Uncertainty: <1 mg
Electrical Protection: EMC and RFI shielding
Reliability: MIL-HDBK-217 Level 2
Self-Test: ±1 g @ 10 Hz ST line grounding
Protection Class: IP67
Product Dimensions: L55 × W37 × H29 mm
Product Weight: ≤120 g (excluding cable)

Technical specifications

• Model: GKC370
• Type: Triaxial MEMS capacitive vibration sensor, voltage output
• Measurement ranges (selectable): ±2g, ±4g, ±8g, ±16g
• Output: Analog voltage 0.5–4.5 V (zero point 2.5 V)
• Resolution: <1 mg
• Linearity: 1%
• Frequency response / Bandwidth: 0–200 Hz; 200 Hz @ 3 dB
• Noise: <25 µg/√Hz (@ ±2g); <60 µg/√Hz (@ ±16g)
• Supply voltage: 9–36 V DC; Power consumption 35–38 mA @ 12 V
• Shock resistance: >100 g @ 11 ms; shock recovery <1 ms
• Operating / Storage temperature: -40 ~ +85 °C
• Protection class: IP67; EMC and RFI shielding
• Built-in self-test function for real-time status monitoring
• Dimensions: 55 × 37 × 29 mm; Weight ≤120 g (excluding cable)