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Model C Controller

The Model C controller is our simplest to use controller. Easy manual control is achieved by adjusting a digital thumbwheel switch. It may also be operated remotely via voltage or resistance programming. Fully solid state and built in-house by Sigma factory trained personnel, the Model C controller uses a lead proportional, lag dampening, automatic mode selecting control for optimum precision and reliability. The Model C controller features:

The controller is available in 120, 208, and 240 VAC, 50/60 Hz. 1 F  configurations.

• Thumbwheel switch set Single Setpoint (1°C increments)
• On/Off Operation Switch
• Auto Mode Selecting (Heat/Cool)
• 500W Platinum RTD for Precision Control
• Control accuracy to to ±0.1°C
• Opto-coupler isolated with lead proportional lag damping
• Electronic chopper stabilized
• Digit switch setpoint display, Heat, Cool, At Setpoint indicators
• Zero switching (RFI free) integral cycling
• Time proportioning

Temperature Range °C
Standard	–199 to +299