Description
Watlow CLS204
Technical Specifications
Brand: Watlow
Product Model: CLS204 (part of ANAFAZE CLS200 series)
Product Type: 4-Loop Digital Temperature Controller
Control Loops: 4 independent control loops
Display: 32-character vacuum fluorescent display (VFD)
Input Types: Universal input supporting thermocouples (J, K, T, E, etc.), RTDs (PT100, PT1000), linear voltage (0-10V DC), current (4-20mA), and frequency signals
Control Modes: PID control, on/off control
Auto-Tuning: Built-in auto-tune function for automatic PID parameter optimization
Output Types: Relay, SSR (solid-state relay), linear current/voltage, motor valve
Communication: EIA/TIA-232 and EIA/TIA-485 serial interfaces, Modbus RTU protocol
Power Supply: 100-240V AC, 50/60Hz
Operating Temperature: 0 to 50 degrees Celsius
Storage Temperature: -20 to 70 degrees Celsius
Dimensions: Compact design suitable for panel or rack mounting
Certifications: CE, UL, RoHS compliant
Functional Features
4 Independent Control Loops: Simultaneously control up to 4 separate temperature zones
High Accuracy: Control accuracy up to ±0.1°C with temperature fluctuation ≤±0.05°C
Universal Input: Accepts thermocouples, RTDs, and linear signals without external converters
Auto-Tuning: Automatically calculates optimal PID parameters for each loop, reducing commissioning time
Multiple Output Options: Relay, SSR, linear, and motor valve outputs for flexible actuator compatibility
Serial Communication: RS-232 and RS-485 with Modbus RTU for integration with PLCs, DCS, and SCADA systems
Alarm Functions: High/low process and deviation alarms for each input, with sensor fault detection
Ramp/Soak Programming: Optional programmable ramp and soak functionality for batch processing
Data Storage: Non-volatile memory retains configuration and setpoints during power loss
User-Friendly Interface: Menu-driven setup with 8-key keypad and clear VFD display
Application Scenarios
Plastics Processing: Injection molding, extrusion, and blow molding machine temperature control
Packaging Machinery: Heat sealing, shrink wrapping, and thermoforming equipment
Food and Beverage: Ovens, pasteurizers, fermentation tanks, and cooling systems
Semiconductor Manufacturing: Wafer processing, CVD/PVD chambers, and thermal testing
Chemical Processing: Reactor temperature control, heat exchanger regulation, and distillation columns
Laboratory Equipment: Environmental chambers, incubators, and thermal cyclers
HVAC: Multi-zone heating and cooling system control
General Industry: Furnaces, ovens, dryers, and heat treatment equipment
Performance Parameters
Control Accuracy: ±0.1°C (short-term), stable within ±0.5°C long-term
Input Sampling Rate: Fast sampling for responsive control
PID Parameters: Proportional band 0-200%,
