WATLOW CAS200- Furnace temperature curve monitoring, multi-point alarm management, quality production guardian!

The WATLOW CAS200 is a compact DIN-rail temperature controller designed for precision thermal management in industrial processes. Combining reliability with user-friendly operation, this 1/16 DIN device delivers ±0.25% accuracy for applications ranging from plastic extrusion to laboratory equipment. The WATLOW CAS200 features universal voltage input (24–240 VAC/VDC), eliminating the need for external transformers, and supports multiple sensor types (RTD, thermocouple, mV) with automatic calibration. Its intuitive dual-line LCD displays process values and setpoints simultaneously, while front-panel navigation simplifies configuration without external tools. With rugged construction (-20°C to +70°C operation) and EMI immunity, this controller withstands demanding environments while providing PID control, alarm functions, and SSR/relay outputs for seamless integration into heating, cooling, and ventilation systems.

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Description

The WATLOW CAS200 is a compact DIN-rail temperature controller designed for precision thermal management in industrial processes. Combining reliability with user-friendly operation, this 1/16 DIN device delivers ±0.25% accuracy for applications ranging from plastic extrusion to laboratory equipment. The WATLOW CAS200 features universal voltage input (24–240 VAC/VDC), eliminating the need for external transformers, and supports multiple sensor types (RTD, thermocouple, mV) with automatic calibration. Its intuitive dual-line LCD displays process values and setpoints simultaneously, while front-panel navigation simplifies configuration without external tools. With rugged construction (-20°C to +70°C operation) and EMI immunity, this controller withstands demanding environments while providing PID control, alarm functions, and SSR/relay outputs for seamless integration into heating, cooling, and ventilation systems.

WATLOW CAS200

WATLOW CAS200

Technical Specifications

Parameter Name Parameter Value
Product Model CAS200
Manufacturer Watlow
Product Type DIN-Rail Temperature Controller
Input Types J/K/T/E/R/S/B/N thermocouples; Pt100/1000 RTD; 0–50mV
Accuracy ±0.25% F.S. ±1 digit
Control Outputs SSR drive (12 VDC, 40 mA) or relay (3 A, 250 VAC)
Power Supply 24–240 VAC/VDC (auto-sensing)
Operating Temperature -20°C to +70°C
Display Dual-line LCD (PV/SV)
Control Algorithm PID with autotune
Alarms 2 programmable (high/low/deviation)
Communication Optional CAS-COMM (RS-485 Modbus RTU)
Dimensions 45 × 45 × 97 mm (1/16 DIN)
Mounting DIN rail (EN 60715)
Certifications CE, UL 508, RoHS

Main Features and Advantages

Precision Control: Advanced PID with adaptive autotune dynamically adjusts to process changes, reducing overshoot by up to 50%. The WATLOW CAS200 supports soft-start ramping and cascade control for complex thermal profiles.

Deployment Flexibility: Universal power input accepts AC/DC voltages worldwide. Sensor break detection and open-circuit alarms prevent uncontrolled heating. Dual alarm relays enable independent safety interlocks.

Robust Design: 1500 VAC isolation between power, inputs, and outputs. Conformal-coated PCB resists humidity and contaminants. Vibration-resistant up to 10g (IEC 60068-2-6).

Operational Efficiency: Front-panel lock prevents unauthorized changes. Password-protected configuration menus. Optional Modbus RTU module enables SCADA integration without additional gateways.

Application Field

The WATLOW CAS200 excels in:

 

Plastics Processing: Barrel zone control in extruders and injection molders

 

Packaging Machinery: Sealing jaw temperature regulation

 

HVAC: Duct heating and coil protection

 

Food Equipment: Oven, fryer, and sterilization control

 

Lab Instruments: Incubator and environmental chamber management

 

Semiconductor: Thermal chuck stabilization

 

WATLOW CAS200

WATLOW CAS200

Related Products

WATLOW F4T: Touchscreen controller with data logging

 

WATLOW PM3D3CJ-BAAA: Solid-state relay for CAS200 SSR output

 

WATLOW CAS-COMM: RS-485 communication module

 

OMRON E5CC: Competing 1/16 DIN temperature controller

 

WATLOW SENSOR-PT100-3W: 3-wire Pt100 sensor kit

 

Installation and Maintenance

Pre-installation preparation: Verify sensor type compatibility. Ensure DIN rail grounding continuity. Separate high-current wiring (>10 A) from control signals. For SSR output, install external heatsink above 5 A load.

Maintenance recommendations: Calibrate every 24 months using NIST-traceable source. Clean vents annually with dry air. Test alarm relays quarterly. Update firmware via optional PC cable. Replace after 500,000 mechanical relay cycles.

 

 

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