Brookfield Temperature Controller, Model 106 - Manual (Page 12)

Brookfield Engineering Labs., Inc. Page 2 Manual No. M/02-207-C009
VI. PROGRAMMABLE TEMPERATURE CONTROLLER OPERATION
VI. Powering Up the Temperature Controller
The Programmable Temperature Controller is turned on by placing the rear panel mounted ON/
OFF switch in the ON position. The buzzer will beep and, after a few seconds, the digital display
will indicate the present temperature of the Thermo container. When the unit is initialized, all of
the indicator LED’s are off. The REMOTE LED will be illuminated if the Programmable Tem-
perature Controller is connected to an external device through the HT-106 cable.
VI.2 Control Modes
The user can select one of three control modes.
In the MANUAL or SINGLE SETPOINT MODE, the Programmable Temperature Controller
functions as a single setpoint controller. The user sets a desired temperature, presses the RUN/
STBY key and the unit will control the Thermo Container at this temperature indefinitely until
the unit is shut off, or a new setpoint is entered and run or the Programmable Temperature Con-
troller is placed in the standby mode.
In the PROGRAM MODE, the Programmable Temperature Controller functions as a multiple
setpoint temperature controller. The user may define up to ten different setpoints in the control-
ler’s memory. The user must also define the time interval which will be used for each temperature
setpoint (up to 15 hours 00 minutes per setpoint). The user may then run this pre-set program and
the Programmable Temperature Controller will automatically execute the program. The Thermo
Container will be controlled 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 Control-
ler 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 com-
mands from an external control device via the HT-106 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.
VI.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.