Sterlco Midsize - Manual (Page 28)

Page 28 Portable Hot Oil Temperature Control Units
Chapter 5: Using Controls & Indicators
5-1 The Microprocessor Controller
The 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 has been fully factory tested. Set the desired process temperature set point and
the control does the rest.
Built-in range of operation on the controller is 0°F to 550°F (-18ºC to 288ºC).
5-2 Controller Display
Figure 3
Typical E5CK
Microprocessor Controller
PV
SV
OUT1
OUT2 MANU STOP RMT AT SUB1
AT
E5CK OMRON
PV or Process Value Numeric LED
During normal operation, the large red PV Process Value LED on the controller displays the
actual process temperature at the To Process thermocouple. It also lists parameter symbols
during setup and error messages if an error occurs.
SV or Set Value Numeric LED
During normal operation, the green SV Set Value LED on the controller displays the process
set point you want the chiller to maintain. It also displays parameter and pre-set function
values during setup.
OUT1 LED
The orange OUT1 LED lights when the controller output energizes the immersion heater.
OUT2 LED
The orange OUT2 LED lights when the controller output energizes the cooling valve.
MANU LED
The orange MANU LED lights when you place the controller in Manual mode.