Brookfield Temperature Controller, Model 106 User Manual

Page 10

Brookfield Engineering Labs., Inc.

Page 10

Manual No. M/98-206-A0402

trolled to a specified setpoint temperature for the specified time interval and then the setpoint will be
automatically changed to the next programmed temperature. The programmed setpoints may be of a
“RAMP UP” type, “RAMP DOWN” type or a mixture of the two. At the last step of the program, the
user can have the Programmable Temperature Controller stop controlling temperature after the last
setpoint has been held at the last prescribed time interval, or continue controlling at the last setpoint
temperature indefinitely.

In the REMOTE MODE the Programmable Temperature Controller accepts and executes commands
from an external control device via an RS-232 cable. You may not use the REMOTE MODE to run
the program resident in the Programmable Temperature Controller memory.

The sections that follow explain these options in greater detail. The Programmable Temperature
Controller may only be used in one of these modes at a time.

V.3 Single SetPoint Operation - Non Program Mode

In the single setpoint mode of operation, the system is operated at a constant temperature. To establish the
desired temperature, use the following procedure:

1) Press the

SET

key.

NOTE:

The Temperature Controller will display the last set point temperature value upon
entering the temperature setpoint screen.

If you do not press either of the

keys or the

SET

key within approximately 4-5

seconds, the Temperature Controller will “beep” and revert to its non setpoint mode (the
temperature will again be displaying tenth degree values). Simply press the

SET

key again to

re-enter the temperature setpoint mode.

2) A press of either the

keys will cause the tenths degree digit to stop flashing and the

tenths degree value to begin incrementing (or decrementing) at a one-to-two character per
second rate. When the scrolled tenths value exceeds ten-tenths of a degree (i.e. one degree) in
either direction, the scroll speed will then accelerate, and the ones digit will then be incremented
(or decremented) as required. If the

keys are held in for an extended time, the

scroll speed will again increase to its maximum rate.

3) If the user lets up on an

key for more than the 4-5 second timeout period, the

display will revert to that of the current Thermo Container temperature with no change in the
setpoint temperature taking place. At this point, a press of the

SET

key will display the last

valid setpoint temperature that existed before the user began to change the setpoint tempera-
ture.

4) If the user lets up on the

key for less than the 4-5 second timeout period, and then

re-presses an

key, the display will return to the tenths degree digit set mode and

again begin the temperature set mode as described above.