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ADDITIONAL MENU SETTINGS
TEMPERATURE UNITS
HYSTERESIS
The FTSs Pro Modular Temperature controller uses an Omron Digital Controller as the “brains of the
operation”. It contains a whole host of menu options and settings that are not crucial to the basic
functioning of your FTSs Pro. Outlined below are a few of the more pertinent menu settings. For more
detailed information, please consult the Omron Programming Guides.
The FTSs Pro Modular Temperature Controller allows the user to toggle between Fahrenheit and
Celsius. To do so, hold the “Level Key” for 3 or more seconds and then press the “Mode Key” until you
see “d-U”. Press the “Up” or “Down” Keys to toggle between Fahrenheit (F) and Celsius (C).
The FTSs Pro Modular Temperature Controller allows you to set a hysteresis value. This value
represents the number of degrees away from the set value that the Omron will trigger an output. Press
the “Level Key” for 3 or more seconds and then press the “Mode Key” until you see “HYS”. Press the
“Up” or “Down” Keys to adjust the value.
For example, if the hysteresis is set to “1” (default setting), then the solenoid valve will only open when
the PV is one degree or greater above the SV. We recommend leaving this value at “1” to prevent
over-cycling of the system.
Up Key
Up Key
Level Key
Level Key
Down Key
Down Key
Mode Key
Mode Key
No. 1 Display
No. 1 Display
No. 2 Display
No. 2 Display