SCR power regulator
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MWH300F-692 Dual-Mode Intelligent SCR Power Regulator & PID Temperature Controller

The MWH300F-692 is a versatile dual-mode intelligent controller supporting both PID temperature control (thermocouple/RTD) and SCR process control (analog voltage/current). It features real-time 3-phase current/voltage monitoring, a bright dual-row digital display, and comprehensive safety protections including over-temperature, over-current cut-off, heater break/short alarm, and 3-phase unbalance detection. With RS-485 communication, PID auto-tuning, and a rugged industrial design, it ensures precise and reliable performance in harsh environments.

 

  • Brand:

    PIDMaxWell
  • Item no.:

    MWH300F-692
  • Payment:

    T.T, Credit Card, Paypal etc, to be negotiate
  • Market price:

    $550
  • Price:

    $500
  • Product origin:

    Made In China
  • Color:

    Grey
  • Goods stock:

    10
  • Min order:

    1
  • Lead Time:

    One week after payment

Key Features

  • Dual-Mode Intelligent Control (2-in-1): Supports PID Temperature Control Mode (CON=0, compatible with thermocouple/RTD inputs) and SCR Process Control Mode (CON=1, compatible with analog voltage/current inputs).

  • Comprehensive Power Monitoring & Display: Real-time query of 3-phase current, 3-phase voltage, and heatsink temperature via bright dual-row digital tubes and bar graph (0–100% output).

  • Multi-Layered Safety Protection:

    • Over-temperature protection with adjustable output power limiting

    • Over-current cut-off protection (output resets to zero upon surge)

    • Heater break/short circuit alarm (via 1st current channel)

    • 3-phase voltage/current unbalance alarm with lock-and-stop

  • Highly Flexible Parameter Configuration: Up to 14 LCK password-protected menus covering PID, alarms, communication, fan control, and more.

  • RS-485 Communication: Configurable device ID (0–255) and baud rate (2.4K–19.2K) for easy host system integration.

  • PID Auto-tuning (AT) & Heating Rate Intervention: Effectively suppresses temperature overshoot.

  • Industrial-Grade Cooling & Structure: Intelligent fan control (auto start/stop based on heatsink temperature), rugged housing, 220VAC power supply.

 

Technical Specifications

Feature

Specification

Model MWH300F-692
Control Modes PID Temperature Control (CON=0) / SCR Process Control (CON=1)
Input Signals Thermocouple, RTD (Pt100-B), Max. 20mA Analog, Max. 10VDC Analog
Display Dual-row digital tubes + bar graph (measured value, setpoint, output %)
Output SCR triggering, 0–100% manipulated variable
Communication RS-485, Device ID: 0–255, Baud Rate: 2.4K / 4.8K / 9.6K / 19.2K, Parity: None/Odd/Even
Power Supply 220VAC
Alarm Outputs AL1 / AL2 relay outputs
Current Monitoring 3-phase current (via CT), range depends on model
Voltage Monitoring 3-phase voltage
Heatsink Temperature Real-time monitoring with over-temperature protection
Protection Functions Over-temperature, over-current cut-off, heater break/short, 3-phase unbalance
PID Parameters P: 0.0–200.0°C, I: 0–3600s, D: 0–3600s, Cycle: 1–999s
Auto-tuning Supported (AT=YES/NO)
Alarm Codes E1–E61 (with latch and STOP state)
Cooling Intelligent fan control (activation temp 0–100°C, hysteresis 0–10°C)
Operating Environment Industrial-grade, rugged housing
Dimensions Standard industrial panel mount (refer to physical unit)

 


Click the link below to download the MWH300F-692 SCR Power Regulator + Temperature Controller (2-in-1) catalog.

Potential Applications

While the search results do not list applications for this model, the features described in your manual suggest the MWH300F-692 is suited for industrial heating processes requiring precise control and safety. Based on its capabilities, potential applications include:

  • Industrial Furnaces and Ovens: For precise PID temperature control of heating elements.

  • Plastic Injection Molding: For controlling barrel heaters with multi-zone monitoring.

  • Heat Treating and Melting: For SCR process control where analog signals (voltage/current) are used.

  • Environmental Chambers: For controlling heating loads while monitoring 3-phase power balance.

  • Semiconductor Manufacturing: For precise thermal control in sensitive processes.

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