Instruction manual

OTC25 L
O p e r a t i o n
11
OTC25 L
O p e r a t i o n
10
Parameter Descriptions
Default Display
This parameter determines whether the OTC25 L’s display
shows the Limit Setpoint or the actual temperature by
default. Regardless of the selection made here, the operator
can observe the other value by momentarily pressing the
Parameter Key. This will cause the alternate value to
be displayed for five seconds.
Figure 5b. Series OTC25 L Parameters and Default Settings
OTC25 L Limit Controller
Normal Operation
The factory default display setting of the OTC25 L is for Actual
Temperature . The default display may be changed to
setpoint temperature by selecting Limit Setpoint at the
Default Display parameter selection. When the Default
Display is changed to Limit Setpoint, the limit setpoint tempera-
ture may be adjusted by using the Raise or Lower keys.
The limit setpoint is adjustable from 32 to 905° F (0 to 485° C).
When the Default Display setting is “Actual” , adjustment
of the Limit Setpoint may only be accomplished by pressing the
Parameter Key momentarily to switch the display to Limit
Setpoint, and then using the Raise or Lower Keys to
change the Limit Setpoint Value. The display will automatically
revert back to “Actual” five seconds after the last keypress.
Parameter Configuration
Your OTC25 L controller’s parameter selections are explained
on the next page, with default settings shown in Figure 5b.
To enter the configuration menu, press and hold the Parameter
key for 10 seconds until the display changes to the parame-
ter mode. Press the Parameter key again to index through the
available parameters. Pressing the Parameter Key for 3 seconds
or allowing 60 seconds of inactivity will cause the OTC25 L to
exit the menu system and return to normal operating mode.