Brookfield Temperature Controller, Model 106 - Manual (Page 18)

Brookfield Engineering Labs., Inc. Page Manual No. M/02-207-C009
While the Programmable Temperature Controller is in the hold time interval for a given setpoint,
you can press the SET key twice to obtain the following information:
1) The first press of the SET key will display the current setpoint temperature and the cur-
rent step number:
165.03
As shown here, we are holding in step 3 with a setpoint temperature of 165°C (or °F if that had
been selected as the temperature display units).
2) The second press of the SET key will display the hold time remaining in step 3 before the
Programmable Temperature Controller goes to the temperature programmed in step 4.
The time remaining display would appear as follows:
8 t
The display shows that there are between 8 and 9 minutes left in the hold time period for this
step. It is important to remember that the Programmable Temperature Controller starts all pro-
gram steps at 0, and that all hold times are decremented to 0. This means, for instance, that if 15
minutes were entered as a hold time, you would see 14 displayed as the time remaining if you
were to look at the hold time immediately after its start, and 0 if the hold time were in its last
minute.
While the Programmable Temperature Controller is ramping up (or down), you can also deter-
mine the temperature setpoint for the next step by pressing the SET key twice: once to view the
next setpoint temperature and once to see the programmed
HoLd
time interval.
VI. Stopping A Program
To stop a program that is presently running, simply press the RUN/STBYkey. The PROGRAM
LED will be extinguished and the current temperature of the Thermosel Container will be dis-
played. The Programmable Temperature Controller will display the setpoint temperature and step
number for the program step it was executing at the time the RUN/STBY key was pressed.
VI.9 Remote Operation
The Programmable Temperature Controller can be interfaced to an external device such as a
personal computer via the RS-232C protocol. The RS-232C cable (Brookfield Part Number HT-
106) is used to interface the two devices.
Appendix A contains a sample program written in the BASIC language to demonstrate the use of