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Digital Controller
The digital controller controls temperature using a PID (Proportional-Integral-
Derivative) algorithm. It is designed with self-diagnostic features and easy to
use operator interface.
NEXT ENTER
Use this key to accept and save changes.
YES,
This key is used to increase numerical values.
NO,
This key is used to decrease numerical values.
When the controller is powered it displays the reservoir fluid temperature.
Press the NEXT ENTER key to view the setpoint. The display flashes be-
tween SP and the actual setpoint number. If desired, use the YES and NO
keys to change the setpoint. The display flashes as soon as either key is
depressed. Once the desired setpoint is displayed, press NEXT ENTER.
NOTE: The controller does not use the new value until the NEXT ENTER key
is depressed and the display stops flashing. The controller will not allow you
to enter a value above the maximum or below the minimum value, or any
illegal value. If you try to enter an illegal value the display will revert to its
original value when the last digit was entered.
If the NEXT ENTER key is not depressed within one minute, the controller will
time out and the new value will not be accepted. The controller will revert to
the previous value.
NOTE: Error codes are addressed in Section V, Maintenance and Service.
Digital Temperature Controller
COOL
IDLE
NO
NEXT
ENTER
°C
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