Switching from °F to °C
Humboldt 120V Deluxe Water Baths come set to °F and 220V models come set
to °C for the controller. If you desire to change this setting, hold the two arrow
buttons in at the same time and hold for 5-10 seconds. The controller will switch
to this view, Figure #3:
Push the blue scroll button on the far left of the controller twice, which should
change the controller view to this, Figure #4:
Now you can use the arrows to toggle between °F and °C. Set the controller
to the desired choice and push the blue scroll button repeatedly until the unit
returns to the setpoint and current temperature view. Once there the blue
button will no longer change the display. This will set the temperature reading to
your desired view.
Figure #3
Figure #4