The Watlow CLS216 is a high-performance programmable temperature controller from the CLS200 series, designed for precise thermal management in industrial processes. Featuring dual-loop control capability, this DIN rail-mount unit delivers ±0.1°C stability with 24-bit resolution, making it ideal for semiconductor wafer processing and pharmaceutical crystallization applications. The CLS216 supports multiple sensor inputs (RTD, thermocouple, mA/V) and incorporates Watlow’s proprietary Auto-Tune PID algorithm, reducing process settling time by up to 60% compared to conventional controllers.
With integrated Modbus TCP/IP and EtherNet/IP protocols, the CLS216 seamlessly integrates into DCS architectures as an L1 layer device while providing web-based configuration through its embedded HTTPS server. The controller’s NEMA 4X-rated front panel withstands harsh washdown environments in food processing plants.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Model | CLS216 |
| Manufacturer | Watlow |
| Series | CLS200 Programmable Controllers |
| Control Outputs | 2 (SSR/Relay/Analog) |
| Input Types | RTD/TC/mA/V |
| Resolution | 24-bit (±0.01°C) |
| Accuracy | ±0.1°C or ±0.1% FS |
| Control Algorithm | Auto-Tune PID |
| Communication | Modbus TCP/IP, EtherNet/IP |
| Display | 4.3″ Color TFT (800×480) |
| Power Supply | 24VDC ±10% |
| Operating Temp | -20°C to +55°C |
| Certifications | CE, UL, cUL |
Key Features and Advantages:
Advanced thermal control: The CLS216’s predictive PID algorithm with 100ms sampling rate prevents overshoot in injection molding barrel temperature control. Its dual-setpoint capability allows automatic switching between heating/cooling profiles during polymer extrusion processes1.
Connectivity: Built-in OPC UA server enables direct data exchange with SCADA systems without additional gateways5. The web interface supports remote recipe management for multi-batch chemical reactors.
Durability: Military-grade components ensure 100,000+ operation cycles in metal heat treatment furnaces. The front panel’s IP66 rating protects against high-pressure cleaning in dairy processing lines.
Application Areas:
- Semiconductor: CVD chamber temperature regulation (±0.5°C uniformity)
- Pharma: Lyophilizer shelf temperature control (GMP compliant)
- Food: Retort sterilization process monitoring (FDA 21 CFR Part 11)
- Plastics: Extruder multi-zone thermal management
In glass manufacturing, the CLS216’s 50-program/250-step sequence capability precisely controls annealing oven ramps
Related Products:
- WATLOW CLS204/CLS208/CLS216 CLS200 series Controller
- CLS206: Basic single-loop model
- WATLOW丨ANAFAZE CAS-16CLSCAS
- F4T: Touchscreen HMI companion
- ZYGO ZMI-2002 8020-0211 6U VME Dual Axis Measurement Board丨ZMI 2000 System
Installation and Maintenance:
Installation preparation: Verify supply voltage stability (±5%) before mounting CLS216 near high-frequency inverters. Use shielded twisted pairs for thermocouple connections in EMI-intensive environments.
Maintenance recommendations: Calibrate input channels annually using traceable standards (NIST/IEC 60751). Clean ventilation slots quarterly in dusty environments using low-pressure air.
Product Assurance:
Watlow provides 12-month warranty with lifetime technical support for CLS216 controllers. Each unit undergoes 500-hour burn-in testing including thermal cycling (-40°C to +85°C). Global service network guarantees 8-hour response for critical process failures.
There are no reviews yet.