Brookfield Temperature Controller, Model 106 User Manual

Page 11

Brookfield Engineering Labs., Inc.

Page 11

Manual No. M/98-206-A0402

5) If the user scrolls to some new setpoint temperature lets up on the

keys and presses

the

SET

key, the Temperature Controller will accept the scrolled-to temperature as the new

setpoint temperature. If the user had pressed the

RUN

STBY

instead of the

SET

key, the temperature

controller would have begun controlling the Thermo Container at the new scrolled-to setpoint
temperature. In this case, the

RUN

LED would illuminate and the

HEAT

LED may or

may not be lit depending on the temperature in the Thermo Container.

In any case, the Temperature Controller action will be to regulate to the new setpoint tempera-
ture. The current temperature of the Thermo Container will be displayed on the front panel
digital display with the

RUN

LED illuminated. Power will be provided to the Thermo

Container if the new setpoint temperature is higher; the Thermo Container

HEAT

LED

will be illuminated. The Temperature Controller will provide power to reach the indicated set
point and maintain it at that level indefinitely.

NOTE:

The last scrolled-to-temperature (the last setpoint temperature) will be re-

tained in non-volatile memory and will become the default setpoint tempera-
ture the next time the Temperature Controller is powered up.

6) Temperature control of the Thermo Container will be maintained for as long as the Tem-

perature Controller is powered up, or until the

RUN

STBY

key is pressed to stop the control action.

V.4 Program Mode

There are two options available to the user in the PROGRAM MODE:

1) Run a program and terminate temperature control at the end of the program cycle.
2) Run a program and maintain temperature control at the last program setpoint temperature.

The fundamental approach to programmed operation is to create a table that includes the desired
temperatures and the hold time period that is required for each temperature. A sample tempera-
ture/time program is shown in Table 7. Entry number 6 in the table is the last desired temperature
step. Please note that the remaining program slots 7, 8 and 9 may have temperatures in them.

TA B L E 7

T E M P E R AT U R E

H O L D T I M E

E N T RY

(

C )

( M i n u t e s )

N U M B E R

1 0 0 . 0

1 5

1 4 0 . 0

1 5

1 6 0 . 0

1 5

2 0 5 . 0

1 5

2 4 0 . 0

1 5

2 6 5 . 0

1 5

2 9 0 . 0

1 5

S A M P L E T E M P E R AT U R E / T I M E P R O G R A M