Humboldt H-3185B CONTROLLER User Manual
Page 8
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© 2008 Humboldt Manufacturing
4.1 Changing Operational Modes
1. To change the mode of operation, press and hold the Mode button
for at
least three seconds. The red display will read “Ctrl” and the green display will
read whatever mode it is currently in.
2. Use the up or down arrow buttons
to change the setting on the
green display to show the mode desired.
3. When the desired mode is set, return to the temperature readings and begin the
operation by holding down the Mode button
again until the displays show
the actual temperature and set value readings as in Figure 4.
4.1.1 Normal Mode
1. To change to Normal mode, follow the step 1 in section 4.1 for changing the
operational mode.
2. When the red display reads “CtrL”, press one of the arrow buttons
until the green display reads “nor” (Figure 5).