BROOKFIELD MODEL 106 Programmable Temperature Controller Operating Instructions Manual No. M/02-207-C0109 SPECIALISTS IN THE MEASUREMENT AND CONTROL OF VISCOSITY with offices in: Boston • Chicago • London • Stuttgart • Guangzhou BROOKFIELD ENGINEERING LABORATORIES, INC. 11 Commerce Boulevard, Middleboro, MA 02346 USA TEL 508-946-6200 or 800-628-8139 (USA excluding MA) FAX 508-946-6262 INTERNET http://www.brookfieldengineering.com Brookfield Engineering Labs., Inc. Page Manual No.
TABLE OF CONTENTS I. INTRODUCTION............................................................................................................................. 3 II. SPECIFICATIONS.......................................................................................................................... 4 III. SAFETY SYMBOLS AND PRECAUTIONS....................................................................................... 5 IV. INSTALLATION...............................................................
I. INTRODUCTION The Programmable Temperature Controller is used with the Brookfield Thermosel for measuring viscosity at high temperatures. The unit includes a solid state proportioning temperature controller, a means for entering the desired temperature/time data and appropriate status indicators. The Programmable Temperature Controller can maintain a constant temperature in the Thermosel or be programmed to effect temperature changes.
II. SPECIFICATIONS Utilities VOLTAGE SPECIFICATIONS Input Voltage 85 to 265 VAC Input Frequency 50/60 Hz Replaceable Fuses Two fuses, 2A, 250V, 5 x 20 mm, Fast Acting Load TRIAC (250 watts max) (Check the label beneath the Programmable Temperature Controller for the voltage requirements of our unit) Table II.1 Controller MEASUREMENT/CONTROL SPECIFICATIONS Range 15°C above ambient to 300°C 27°F above ambient to 572°F Resolution 0.1 °C or °F Reading Accuracy ±1.
Electrical Certifications Conforms to CE Standards: BSEN 50081-1: BSEN 50082-1: BSEN 61010-1: III. Emission Standard - Light Industrial Immunity Standard - Light Industrial Safety requirements for electrical equipment, for measurement, control and laboratory use. SAFETY SYMBOLS AND PRECAUTIONS Safety Symbols The following explains safety symbols which may be found in this operating manual.
IV. INSTALLATION Plug the temperature sensor into the Probe receptacle, the Thermo Container into the Thermosel receptacle, the strip chart recorder (if used) into the Recorder jack and a remote RS-232C device (again, if used) into the Comm Ports 25-pin plug. The rear panel will appear as follows in Figure IV.1. Figure IV.1 IV.
For example, the temperature corresponding to a reading of 2.5 V (2500 mV) would be calculated as follows: (0.1 x 2500) - 100 = 150°C or (0.18 x 2500) - 148 = 302°F The recorder jack is a standard 1/4” phono jack. An optional analog output cable (Brookfield Part No. HT-88Y) is available from Brookfield. IV.3 Comm Port The COMMUNICATION PORT provides an RS-232C data link to an external device such as a computer or remote terminal.
IV.5 Load The Thermosel connector is provided to supply power to the Thermo Container. The connector is specially keyed so that other loads cannot be readily substituted. The power limit supplied by this connector is 300 watts. NOTE: The current provided to the Thermosel connector is potentially dangerous. Do not insert or remove the Load plug while power is applied to the Programmable Temperature Controller. Brookfield Engineering Labs., Inc. Page Manual No.
V. CONTROL KEYS AND DISPLAY PANEL The front panel of the unit, which includes all user controls and status indicators, is shown in Figure V.1: Figure V.1 The digital display is used to display system status, to set up temperature/time programs, to review temperature/time programs and to present certain messages to the user. The allowable range for temperature entries is: 0.0°C to 300.0°C (32.0°F to 572.0°F), with a minimum increment of 0.1° (either scale).
V.2 RUN STBY The Run/Stby Key The RUN/STBY key initiates or stops operation of the Programmable Temperature Controller. To initiate a temperature program or single setpoint operation, press RUN/STBY. The LED labeled RUN will light up to indicate the present status of the controller. When the Temperature Controller is operating, pressing the RUN/STBY key will place the unit in a standby mode and cease control of the Thermo Container. V.
V.7 REMOTE The Remote LED The REMOTE LED is illuminated when an RS-232C cable (Brookfield Part No. HT-106 for connecting the Model 106 to a computer) is plugged into the Programmable Temperature Controller. V.8 RUN The Run LED The RUN LED is illuminated when the temperature of the Thermo Container is being controlled by the Programmable Temperature Controller. V.9 PROGRAM The Program LED The PROGRAM LED is illuminated when a temperature program is being established, viewed or run. V.
VI. PROGRAMMABLE TEMPERATURE CONTROLLER OPERATION VI.1 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.
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 p or q 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.
6) Temperature control of the Thermo Container will be maintained for as long as the TemperRUN ature Controller is powered up, or until the STBY key is pressed to stop the control action. VI.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.
Temperature/Time programs remain in memory when the Programmable Temperature Controller is turned off. It is not necessary to re-enter these programs when the unit is turned on again. 1) Use the °F/°C key to select whether temperatures will be entered in the Fahrenheit or Centigrade format. Since Table VI.1 indicates temperatures in °C, we press the °F/°C key until a C is shown in the right most display position. 2) Press the PROGRAM key.
7) 45 is the previously set temperature for the second entry. 1 indicates the second program entry. 45.01 Enter the desired temperature for the second entry (140) and press the SET key when the correct value has been entered. Enter the desired time for the second step and press the SET key to accept it and move to the next step. 8) Continue to enter additional steps for the temperature/time program. The Programmable Temperature Controller can accept up to 10 entries.
Strt0 Use the ARROW keys to scroll through the numbers 0 to 9 and select your starting step. Press the SET key to accept your selection and then see the following screen: End 0 Again use the ARROW keys to scroll through the numbers 0 to 9 and select your program end step. You cannot select an end step that is less than your selected start step. Any attempt to do so will result in an audible alert from the Programmable Temperature Controller.
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 current 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).
the external control of the Programmable Temperature Controller. This program executes a temperature program from 100° C to 200° C in 25° C increments. At each setpoint, the temperature is maintained for a period of 10 minutes. The program can be readily adapted to include additional temperature setpoints and different time periods. NOTES: 1) Only setpoint temperatures may be sent to the Programmable Temperature Controller in the external mode.
where: tttt u st indicates the current temperature multiplied by a factor of ten; indicates the temperature scale (°F or °C); indicates the present state of the Programmable Temperature Controller (as described in Table 8 at the end of this section). A typical response might be T2345F1, which means that the temperature is 234.5°F, and the controller is presently in the run mode (1). 2) To read the current temperature setpoint, enter S{CR} at the external device.
st Codes Defining the State of the Programmable Temperature Controller Code Definition 1 RUN mode; control to the setpoint temperature 2 STANDBY mode; do not control; wait for further input 3 Probe error 1 (probe disconnected from controller) 4 Overheat of the Thermo Container. This occurs after approximately 3 minutes of constant heat with no sensed temperature rise in the Thermo Container. 5 Probe error 2 (temperature reading is above allowable limit) Table VI.
3) The Programmable Temperature Controller sensed a temperature higher or lower than its built-in limits. The following paragraphs provide further detail. VIII.1 Open Sensor Error If the sensor fails or an open circuit condition occurs (infinite resistance), the unit will cause a probe error as follows: 0.rtd NOTE:The controller will intermittently beep.
VIII.3 High/Low Temperature Limit Error -Lo-HIIf a temperature outside of the Programmable Temperature Controller’s high or low temperature limits is detected, either of the two messages shown directly above will be displayed. The Programmable Temperature Controller will stop control and will stay in this state until the problem is corrected. Once corrected, the unit will return to viewing the controlled temperature. IX.
APPENDIX A - External Mode Command Protocol Demonstration1000 ‘ 1010 ‘ 1020 ‘ 1030 ‘ 1040 ‘ 1050 ‘ 1060 1070 1080 1090 1100 1110 1120 1130 1140 1150 1160 1170 1180 1190 1200 1210 1220 1230 1240 1250 1260 1270 1280 1290 1300 1310 1320 1330 1340 1350 1360 1370 1380 1390 1400 1410 1420 1430 1440 1450 1460 ‘ 1470 1480 1490 1500 1510 1520 1530 1540 Programmable Temperature Controller External Mode Command Protocol Demonstration Copyright 1991, Brookfield Engineering Labs....
1550 1560 1570 1580 1590 1600 1610 1620 1630 ‘ 1640 ‘ 1650 ‘ 1660 ‘ 1670 1680 1690 1700 1710 1730 ‘ 1740 ‘ 1750 ‘ 1760 1770 1780 1790 1800 1810 1820 1830 1840 1860 ‘ 1870 ‘ 1880 ‘ 1890 1900 1910 1920 1930 ‘ 1940 ‘ 1950 ‘ 1960 ‘ 1970 1980 1990 2000 2010 ‘ 2020 ‘ 2030 2040 ‘ 2050 ‘ 2060 ‘ 2070 ‘ 2080 ‘ WEND HTCMD$ = “RA2” GOSUB 1890 PRINT PRINT SPC(25); PRINT SPC(25); GOSUB 2240 END ‘ End WHILE from line 1245 ‘ Set Controller to Stby mode ‘ Send command to HT-104 “Temperature ramp complete!” “Returning the
2120 ‘ 2130 ‘ 2140 ‘ 2150 ‘ 2160 2170 2180 2190 2200 ‘ 2210 ‘ 2220 ‘ 2230 ‘ 2240 2250 2260 ‘ 2270 ‘ 2280 ‘ 2290 2300 2310 2320 2330 2340 2350 2360 2370 2380 2390 2400 2410 2420 2430 2440 2450 ‘ 2460 ‘ 2470 ‘ 2480 2490 2500 2510 2520 2530 2540 2550 2560 Routine to clear the com port input buffer WHILE LOC(1) > 0 DUMMY$ = INPUT$(LOC(1), #1) WEND RETURN ‘ If data in input buffer ‘ Dump it out Routine to close communications channel CLOSE #1 RETURN Routine to countdown 10 minutes T1 = TIMER T2 = T1 + 600 WHI
APPENDIX B - Warranty Repair and Service Warranty Brookfield Viscometers are guaranteed for one year from date of purchase against defects in materials and workmanship. They are certified using primary viscosity standards traceable to the National Institute of Standards and Technology (NIST). The Viscometer must be returned to Brookfield Engineering Laboratories, Inc. or the Brookfield dealer from whom it was purchased for no charge warranty service. Transportation is at the purchaser’s expense.
