Sterlco Micro Series Water Temperature Control Unit - Manual (Page 26)

Page 26 MICRO Series Water Temperature Control Units
4-2 The Microprocessor Controller
The CAL 9000 controller is an easy-to-operate microprocessor-based PID control
device. When the process reaches the set point, the PID control cycles the
cooling valve and/or immersion heater to maintain the proper leaving water
temperature.
The controller is fully factory tested. Set the process temperature set point you
want and the controller does the rest.
Built-in range of operation on the controller is 0°F to 250°F (-18ºC to 121ºC).
Figure 5
Typical Graphic and Button Control Panels
4-3 Identifying Controller Panel Components
Screen Displays
Numeric LED
During normal operation, the LED on the controller displays the process
temperature of the fluid in the heater tank. It also displays parameter and pre-set
function values during setup.
Status Indicators
OUT1 Indicator