Vibration Signal Converter Model-2503 ｜ 4–20mA Output with AC Waveform for FFT & IoT

Showa Sokki Model-2503 – versatile vibration signal converter with 4–20mA output, AC waveform, and explosion-proof support.
🔷 Model-2503 Vibro Converter – Flexible Vibration Signal Conversion
The Model-2503 Vibro Converter from Showa Sokki is a versatile vibration signal converter designed for monitoring and diagnosing equipment vibration. It converts acceleration (ACC), velocity (VEL), or displacement (DISP) into a standardized 4–20mA current signal, enabling seamless integration with PLCs, monitoring systems, and IoT platforms.
The unit can be tailored to suit different applications, with options to configure sensor type, measurement range, and frequency band. It is suitable for general-purpose monitoring, harsh industrial environments, and even hazardous areas when paired with explosion-proof sensors.
⚠️ Important Note
The Model-2503 itself is not intrinsically explosion-proof. However, when combined with the MODEL-2450EX explosion-proof sensor and a dedicated safety barrier, it can form a reliable vibration monitoring system for use in explosive environments.
🔷 Features
- Converts one of acceleration, velocity, or displacement into a 4–20mA signal
- Customizable for sensor type, measurement range, and frequency band
- ±2V AC output available for waveform analysis (FFT compatible)
- Can be used in hazardous areas with explosion-proof sensors (🔺 main unit is not explosion-proof)
- Suitable for IoT, condition-based maintenance (CBM), and equipment diagnostics
🔷 System Configuration Examples
Configuration 1: Intrinsically Safe Explosion-Proof System
- MODEL-2503 + MODEL-2450EX (explosion-proof) + Barrier (NZB2-26R430)
Configuration 2: Low-Frequency Vibration Measurement System
- MODEL-2503 + Low-frequency accelerometer (MODEL-2400A)
🔷 Main Specifications
- Input Signal: Detector output (ACC / VEL / DISP)
- Measurement Range: Specified by model code (e.g., 0–200µm)
- DC Output: 4–20mA (0 to full scale)
- AC Output: ±2V (raw waveform, full scale)
- Frequency Band:
　・ACC: 5Hz–8kHz
　・VEL: 10Hz–1kHz
　・DISP: 10Hz–500Hz (low-frequency option: 2Hz–200Hz)
- Power Supply: DC18–30V (converter), AC85–264V (monitor)
- Operating Temperature Range:
　・Detector: up to 80°C
　・Converter/Monitor: -10 to +50°C
🔷 Applications
- PLC and IoT integration for continuous vibration monitoring
- Waveform analysis with FFT analyzers via AC output
- Explosion-proof vibration monitoring when paired with MODEL-2450EX & barrier
- Low-frequency vibration detection for infrastructure and special machinery
- Enhancing predictive maintenance and safety management in industrial plants
🔷 Distribution & Support
Showa Sokki provides nationwide delivery and support for the Model-2503 Vibro Converter, covering major industrial zones in Chonburi, Rayong, Ayutthaya, Pathum Thani, and Bangkok.
🔷 For detailed specifications, please download the product PDF or contact us directly.
Download : https://prime.nc-net.com/105994/en/catalog/detail/7539
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