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Phone: +86 16626708626Description
The Watlow CLS204 is a compact, multi-loop industrial controller from Watlow’s powerful CLS200 series, widely used in manufacturing and process automation environments. It is specifically designed for applications requiring tight temperature or process variable control in limited panel space, making it prevalent in sectors such as plastics, packaging, electronics, and food processing. The CLS204 supports up to 4 independent control loops, enabling offices and plants to optimize multiple parameters simultaneously within a single compact unit.
This model is built for versatility and ease of use, operating with multiple sensor inputs including thermocouples, RTDs, and linear voltage or current signals, providing broad compatibility with various industrial sensors. It integrates well into existing control architectures via built-in serial communications supporting Modbus RTU and other protocols, facilitating remote monitoring and data acquisition essential for modern industrial operations. The 1/8 DIN size and robust design help reduce panel footprint while maintaining the precision required for batch processes and continuous manufacturing.
- CLS204
- CLS204
The CLS204 features advanced PID control with autotuning capabilities that reduce setup time and improve stability. Optional expanded control modes such as ramp and soak, cascade, ratio, and differential control are available for complex processing needs. Its user interface includes an 8-key keypad and a 2-line, 16-character display for straightforward configuration and operation. Designed to meet UL and CE standards, the controller ensures compliance with international safety and electromagnetic compatibility regulations.
| Parameter | Value |
|---|---|
| Model | CLS204 |
| Brand | Watlow |
| Type | Multi-loop Process and Temperature Controller |
| Control Loops | 4 |
| Display | 2-line, 16-character LCD |
| Sensor Inputs | Thermocouple, RTD, Linear voltage/current |
| Communication Protocols | Modbus RTU, serial |
| Power Supply | 24 V DC (typical) |
| Operating Temperature | 0°C to 55°C |
| Control Modes | PID, autotune, ramp and soak, cascade, ratio |
| Mounting | 1/8 DIN panel |
| Certifications | UL, CE |
| Application | Precise process and temperature control in automation |
Related Watlow models include the CLS208 (8 loops), CLS216 (16 loops), and specialized versions with enhanced features such as extruder control. Compatible terminal boards and communication options further expand the CLS204’s flexibility.
Installation calls for secure DIN mount panel slots, ensuring proper ventilation. Adhering to wiring and grounding best practices is critical to minimize electrical noise. Regular calibration of sensors and firmware updates maintain ongoing controller precision and reliability.
