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Thermotron 3200 Operator's Manual

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A Venturedyne, Ltd. Company
3200 Programmer/Controller
Operator Manual
Revision 2: May 12, 2010
This generic manual is intended for reference purposes only and is not intended to
be used to operate your equipment. For operating instructions and a description of
the features used on your specific control system, see the hard copy manual set for
your Thermotron product.
This manual provides the most current generic operating instructions for this
controller at the time of its revision date. Therefore this manual may not include
some recent software changes. This manual may also cover features that are not
available on your current controller. Examples within this manual are for typical
configurations that may not apply to the configuration of your control system.

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Summary of Contents for Thermotron 3200

  • Page 1 A Venturedyne, Ltd. Company 3200 Programmer/Controller Operator Manual Revision 2: May 12, 2010 This generic manual is intended for reference purposes only and is not intended to be used to operate your equipment. For operating instructions and a description of the features used on your specific control system, see the hard copy manual set for your Thermotron product.
  • Page 2 All relevant issues have been considered in the preparation of this document. Should you notice an omission or any questionable item in this document, please feel free to contact the Thermotron Product Support group between 8:00 am and 4:30 pm Eastern Standard Time at (616) 392-6550.

  • Page 3: Table Of Contents

    3200 Programmer/Controller Operator Manual Table of Contents Table of Contents Section 1: Getting Started Introduction to the 3200 ................................1-1 Display module....................................1-2 • Accessing other screens and functions ........................1-2 3200 basic functions..................................1-3 • Control channels ................................1-3 • Chamber conditioning system signals........................1-3 •...
  • Page 4 Setting up system events............................. 2-15 • Viewing monitor channel readings ......................... 2-16 • Viewing diagnostic screens............................2-16 Section 3: Programming the 3200 Programmed cycling ..................................3-1 Creating or editing a new program............................3-3 Editing a program name................................3-5 Deleting a program..................................3-6 Section 4: Therm-Alarm Functions Introduction ......................................4-1...

  • Page 5: Section 1: Getting Started

    NOTE: Product temperature control and humidity cannot be run at the same time. Although the 3200 can be configured for up to three programmable channels, for ease of use this manual is based on the more common one- and two-channel configurations. Three-channel operation follows the same basic principles described in this manual.

  • Page 6: Display Module

    NOTE: For CDS-5 chambers, enter 72776 (SETUP) on the numeric keypad to access the main menu. For most 3200 operations you start from the startup main screen (shown above) and use function keys to access other screens and functions. To return to the startup main screen from any other screen, press the ESC key repeatedly until the main screen is displayed.

  • Page 7: 3200 Basic Functions

    The following sections provide brief descriptions of some of the 3200 functions. Control channels Control channels receive inputs from thermocouples and/or other sensing devices used to monitor the environmental conditions inside the chamber’s test space. The 3200 adjusts its control outputs based on those inputs. •...

  • Page 8: Auxiliary Outputs

    Aux Grp1 and Aux Grp2 (auxiliary groups 1 and 2): Enter the numbers of the auxiliary relays you want to activate. Auxiliaries are active only when the 3200 is running. For more information on auxiliary relays, see “Auxiliary outputs” earlier in this section.
  • Page 9 Deviation: Enter the value for how far you will allow the temperature or other process variable to be from set point. The deviation setting will be monitored and the deviation alarm will be activated if the value is exceeded. Enter a positive number only; the 3200 will monitor both positive and negative deviations.

  • Page 10: Running A Program

    HOLD. NOTE: In hold program mode the 3200 will maintain the chamber test space at the last set point. 6. To enter temporary values into the current interval, use the numeric keypad to enter a new value. For additional information, go to step 4 of “Edit from hold”...

  • Page 11: Edit From Hold

    Once the interval is run and completed, the temporary values are discarded. The next time the interval is run, the original programmed values apply. NOTE: In hold program mode the 3200 will maintain the chamber test space at the last set point. To operate in edit from hold mode, follow these steps: 1.

  • Page 12: Chamber Status

    The program status screen allows you to view the current operating conditions of the chamber, such as set points, process variables, and throttles. NOTE: The sample screen shows the display for a one-channel 3200 configuration. The 3200 can display only one channel at a time.

  • Page 13: Section 2: System Setup

    3200 Programmer/Controller Operator Manual System Setup Section 2: System Setup This section provides instructions for viewing or adjusting the following functions: • • • Temperature scale Process alarms Monitor channels • • • Access level and password Brightness Contrast •...

  • Page 14: Changing The Brightness

    System Setup 3200 Programmer/Controller Operator Manual Changing the brightness 1. From the main screen, select 4. Setup. The setup menu screen will appear. 2. Select 1. General Options. Use the up and down arrow keys to cycle through the options.

  • Page 15: Adjusting Standard Control Parameters

    Control parameters adjust the performance of the chamber around the set point. As the chamber nears the set point, the 3200 adjusts the chamber throttles to provide a smooth ramp to the set point. To prevent overshooting and oscillation around the final set point, the refrigeration, heating, and other systems must be damped as they approach the set point.

  • Page 16: Tuning Up The Proportional Band And Integral Time Parameters

    System Setup 3200 Programmer/Controller Operator Manual • If the integral time is too short, the process variable will oscillate indefinitely when it reaches the set point. • As a rule for the integral time, shorter = faster response, longer = slower response. Generally, shorter integral times mean shorter transition times.
  • Page 17 3200 Programmer/Controller Operator Manual System Setup 9. Use the up and down arrow keys to select and edit the settings for the channel you are tuning: Set the Deviation to 0. b. Enter a new Set Point based on which parameters you are tuning, such as a heating set point for tuning the heating parameters.
  • Page 18 18. Once the parameters for the first channel have been tuned up, the next channel’s parameters can be tuned up. 19. Once you have finished tuning up all the channels, record the parameter settings. Keep these values on record with the 3200 manual. Summary When adjusting the control parameters you should follow this general outline: 1.

  • Page 19: Adjusting Ptc Control Parameters

    Control parameters adjust the performance of the chamber around the set point. As the chamber nears the set point, the 3200 adjusts the throttles to provide a smooth ramp to the set point. To prevent overshooting and oscillation around the final set point, the refrigeration, heating, and other systems must be damped as they approach the set point.

  • Page 20: Offset Parameters For Ptc

    System Setup 3200 Programmer/Controller Operator Manual Droop is an effect, such as natural heat loss through the test space walls, that prevents the process variable from reaching the final set point. The integral time parameter determines how quickly the throttle will be adjusted to compensate for droop.
  • Page 21 3200 Programmer/Controller Operator Manual System Setup Record the original parameter settings 1. From the main screen, select 4. Setup. Then select 2. Control Params. Use the up and down arrow keys to cycle through the values shown. 2. Use the left and right arrow keys to cycle through the values shown on the last line of the display until PTC CONTROL PARAMS appears.
  • Page 22 System Setup 3200 Programmer/Controller Operator Manual Adjust the setting 12. To adjust the gain, change the Set Point to back the process variable away from the set point you will use to tune the parameter. 13. From the main screen, select 4. Setup. Then select 2. Control Params.
  • Page 23 20. Once the first set of parameters (such as the heating parameters) have been tuned up, the other set of parameters can be tuned up. 21. Record the parameter settings. Keep these values on record with the 3200 manual. Summary When adjusting the PTC control parameters you should follow this general outline: 1.

  • Page 24: Setting Process Alarms

    If you are testing expensive products, you should have an additional back-up product protection device. Each channel of the 3200 can be programmed to activate an alarm if the temperature, humidity, or other process variable exceeds high or low limits you select. If the variable exceeds the high or low limit, the 3200 enters stop mode.

  • Page 25: Changing The Access Level Or Password

    Changing the access level or password The access level function allows you to select from seven different levels of access to the 3200 functions. The following table provides a general overview of which functions are available at each access level.

  • Page 26: Viewing Computer Interface Settings

    Control channels 1 through 8 and monitor channels 1 through 8 can be used to trigger system events. A system event will only be active when the channel associated with it is selected and running. 2. Variable (PVar) indicates which variable the 3200 will monitor for the selected channel. The available variable types are: •...

  • Page 27: Setting Up System Events

    3200 Programmer/Controller Operator Manual System Setup 3. Logic indicates the type of system event. This parameter determines when the 3200 will activate and deactivate the system event. The available logic types are: • Range: The system event output will be activated when the variable is within the selected range (between the low and high parameters, inclusive).

  • Page 28: Viewing Monitor Channel Readings

    2. Use the up and down arrows to cycle through the different options. 3. Please call the Thermotron Product Support group at (616) 392-6550 between 8:00 am and 4:30 pm Eastern Standard Time for assistance. 2-16 This generic manual is not intended to be used to operate your equipment.

  • Page 29: Section 3: Programming The 3200

    During stress screening, process variables are changed as quickly as possible to force any early life failures on each product. In two-channel mode the 3200 is programmed to control humidity as well as temperature. NOTE: Other operations, such as electronic testing of the products, are not a function of the 3200.
  • Page 30 The interval time has two methods of control: If you enter a Time greater than zero, the 3200 performs a temperature ramp. This cycles the temperature evenly to the final temperature within the programmed time. If too short a time is programmed, the 3200 will transition to the next interval when the time runs out anyway.

  • Page 31: Creating Or Editing A New Program

    During two-channel (such as temperature/humidity) operations, the program becomes more complex. Each channel’s variable is programmed with an initial value and final value. During guaranteed soaks both channels can be programmed with a deviation. All deviations must be satisfied before the 3200 moves to the next interval.
  • Page 32 Deviations (Air Dev/Hum Dev) control how far you will allow the selected channel’s process variable to be from set point. Enter a positive number only; the 3200 will monitor both plus and minus deviations and activate the deviation alarm if the values are exceeded. NOTE: In an interval with guaranteed soak (G-Soak) enabled, the program will wait in the interval until all deviations are satisfied before moving on to the next interval.

  • Page 33: Editing A Program Name

    3200 Programmer/Controller Operator Manual Programming the 3200 Editing a program name 1. From the main screen, select 1. Edit Program. 2. The edit program list screen will appear: 3. Select the program (1 through 9) you want to rename. Use the up and down arrows to cycle through the 9 program slots.

  • Page 34: Deleting A Program

    Programming the 3200 3200 Programmer/Controller Operator Manual Deleting a program 1. From the main screen, select 1. Edit Program. 2. The edit program list screen will appear: 3. Select the program (1 through 9) you want to delete. Use the up and down arrows to cycle through the 9 program slots.

  • Page 35: Section 4: Therm-Alarm Functions

    • For Therm-Alarm hardware setup instructions, see the CM2 Control Module Technical Manual. • For information on operating the Therm-Alarm from a host computer, see the 3200 Programmer/ Controller Computer Interface Manual. Thermotron Industries This generic manual is not intended to be used to operate your equipment.

  • Page 36: Therm-Alarm Operating Modes

    Please call Thermotron Industries if you have any questions on additional product protection. This generic manual is not intended to be used to operate your equipment.

  • Page 37: Viewing The Therm-Alarm Status

    3200 Programmer/Controller Operator Manual Therm-Alarm Functions Viewing the Therm-Alarm status 1. From the main screen, select 6. Therm alarms. 2. The THERM ALARMS screen will appear: 3. Select the Therm-Alarm you want to view. 4. From the THERM ALARM menu, select 1. Status.

  • Page 38: Changing The Therm-Alarm Settings

    Therm-Alarm Functions 3200 Programmer/Controller Operator Manual Changing the Therm-Alarm settings 1. From the THERM ALARM menu, use the up and down arrow keys to cycle through the options and select 4. Setup. 2. The first Therm-Alarm configuration screen will appear.

  • Page 39: Alarm Mute And Reset Mode Functions

    3200 Programmer/Controller Operator Manual Therm-Alarm Functions Alarm mute and reset mode functions During warning, alarm, open thermocouple, and failure modes, the Therm-Alarm emits an audible alarm and the Therm-Alarm status screen will appear. From the status screen you can mute the alarm and reset the instrument.

  • Page 40: Initializing The Therm-Alarm Data

    CAUTION: Restoring the Therm-Alarm’s factory default settings should be done only with the assistance of a Thermotron Technical Liaison Advisor. Please call the Thermotron Product Support group at (616) 392-6550 between 8:00 am and 4:30 pm Eastern Standard Time for assistance.

  • Page 41: Section 5: Cm2 Calibration

    3200 Programmer/Controller Operator Manual CM2 Calibration Section 5: CM2 Calibration This section describes how to calibrate a CM2 control module’s control channels, monitor channels, and analog outputs. CAUTION: This section is not a substitute for adequate technical training. Improper calibration could damage your chamber, controller, refrigeration system, or products under test.
  • Page 42 Glossary 3200 Programmer/Controller Operator Manual This generic manual is not intended to be used to operate your equipment. Thermotron Industries...
  • Page 43 Glossary Appendix A: Glossary access level: A function that allows you to select from seven levels of access to the 3200 programmer/ controller functions. alarm band: The maximum amount beyond the current set point that the process variable (actual test space or product condition) can deviate.
  • Page 44 The difference between the process variable (actual test space or product condition) and the set point (assigned test space or product condition). deviation alarm: A 3200 programmer/controller function that can be programmed to activate an alarm if the chamber temperature, humidity, or other process variable is outside the channel’s +/- deviation alarm band.
  • Page 45 A Therm-Alarm function; the hottest or coldest temperature experienced during the most recent alarm condition. monitor channel: A channel used by the 3200 for monitoring processes within the chamber. If the high or low limit is exceeded for any channel, the 3200 alarm outputs are activated.
  • Page 46 A controlled process where the process variable transitions from an initial value to a final value in a specified amount of time. During this time, the 3200’s control parameters maintain a smooth transition. ramp rate: The speed, measured in number of units (such as degrees Celsius) per minute, at which the controller cycles a process variable to a new set point.
  • Page 47 3200 Programmer/Controller Operator Manual Glossary thermocouple (t/c): A device used to sense temperature as a function of current. throttle: The percentage of output applied by a chamber’s conditioning system to reach set point. Any positive throttle is a heating demand, and any negative throttle is a cooling demand. For example, to heat the test space as quickly as possible, the programmer/controller will operate the throttle at +100%.
  • Page 48 Glossary 3200 Programmer/Controller Operator Manual This generic manual is not intended to be used to operate your equipment. Thermotron Industries...

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