Thermotron 3800 Manuel utilisateur

A Venturedyne, Ltd. Company

3800 Programmer/Controller

Operator Manual

Revision 3: April 16, 2009

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.

This generic manual is not intended to be used to operate your equipment.

For additional manuals, contact Thermotron Industries:

Thermotron Industries

291 Kollen Park Drive

Holland, MI 49423, USA

Phone: (616) 392-6550

Fax: (616) 393-4549

www.thermotron.com

Therm-Alarm is a registered trademark of Thermotron Industries.

The information in this document is subject to change without notice. No part of this document

may be reproduced or transmitted in any form or by any means, electronic or mechanical, without

the express written permission of Thermotron Industries. Thermotron Industries may have

patents or pending patent applications, trademarks, copyrights, or other intellectual property

rights covering subject matter in this document. The furnishing of this document does not give

you license to these patents, trademarks, copyrights, or other intellectual property except as

expressly provided in any written license agreement from Thermotron Industries.

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 8:00am and 4:30pm Eastern Standard Time at (616) 392-6550.

Regardless of the above statement(s), Thermotron Industries assumes no responsibility for any

errors that may appear in this document nor for results obtained by the user as a result of using

this product.

Revision 0: May 10, 2004

1: July 14, 2005 – Added Therm-Alarm Calibration information.

2: September 12, 2006 – Redundant Therm-Alarm Changes.

3: April 16, 2009 – Legal Statement

3800 Operator Manual Table of Contents

THERMOTRON This generic manual is not intended to be used to operate your equipment.

Table of Contents

Section 1: Getting Started

Introduction to the 3800.............................................................................................................................1-1

Display Module..........................................................................................................................................1-2

•Accessing Other Screens and Functions .............................................................................................1-2

•Context Sensitive Help System...........................................................................................................1-3

3800 Basic Functions.................................................................................................................................1-3

•Control Channels.................................................................................................................................1-3

•Chamber Conditioning System Signals...............................................................................................1-3

•Alarm Output Signals..........................................................................................................................1-3

•Auxiliary Outputs................................................................................................................................1-4

Running in Manual Mode..........................................................................................................................1-4

•Manual Mode ......................................................................................................................................1-4

•Manual Throttle Mode ........................................................................................................................1-5

Running a Program ...................................................................................................................................1-7

•Program Mode.....................................................................................................................................1-7

•Delayed Start.......................................................................................................................................1-8

•Edit From Hold....................................................................................................................................1-9

Chamber Status........................................................................................................................................1-10

Section 2: System Setup

Changing the Temperature Scale...............................................................................................................2-1

Changing the Screen Saver Activation Time.............................................................................................2-1

Enabling or Disabling the Key Beep .........................................................................................................2-1

Viewing the Software Version...................................................................................................................2-2

Adjusting the Auxiliary Cooling Settings..................................................................................................2-2

Adjusting Standard Control Parameters ....................................................................................................2-3

•Proportional Band Parameters.............................................................................................................2-3

•Integral Time Parameters ....................................................................................................................2-3

•Tuning Up the Proportional Band and Integral Time Parameters.......................................................2-3

Adjusting PTC Control Parameters ...........................................................................................................2-6

•Gain Parameters for PTC ....................................................................................................................2-6

•Integral Time Parameters for PTC ......................................................................................................2-7

•Offset Parameters for PTC..................................................................................................................2-7

•Tuning Up the PTC Gain, Integral Time, and Offset Parameters.......................................................2-7

Setting Process Alarms............................................................................................................................2-10

Changing the Access Level or Password.................................................................................................2-11

Viewing Computer Interface Settings......................................................................................................2-12

Configuring System Events .....................................................................................................................2-12

•System Event Parameters Defined ....................................................................................................2-12

•Setting Up System Events.................................................................................................................2-13

Viewing the Network Setup.....................................................................................................................2-14

Calibrating the Therm-Alarm Input.........................................................................................................2-15

Adjusting the Real Time Clock Settings .................................................................................................2-16

Viewing the Monitor Channel Readings .................................................................................................2-17

Service Status Functions..........................................................................................................................2-17

Viewing Diagnostic Screens....................................................................................................................2-19

Table of Contents 3800 Operator Manual

This generic manual is not intended to be used to operate your equipment. THERMOTRON

Section 3: Programming the 3800

Programmed Cycling .................................................................................................................................3-1

Creating a New Program............................................................................................................................3-3

Loading a Pre-Programmed Test ...............................................................................................................3-5

Editing a Program Name............................................................................................................................3-6

Viewing or Editing a Program...................................................................................................................3-7

Deleting a Program....................................................................................................................................3-8

Section 4: Therm-Alarm Functions

Introduction................................................................................................................................................4-1

Therm-Alarm Operating Modes ................................................................................................................4-2

Positioning the Input Thermocouple or Analog Sensor.............................................................................4-2

Viewing the Therm-Alarm Status..............................................................................................................4-3

Changing the Therm-Alarm Settings.........................................................................................................4-4

Alarm Mute and Reset Mode Functions....................................................................................................4-5

•Muting or Resetting the Therm-Alarm................................................................................................4-5

Initializing the Therm-Alarm Data ............................................................................................................4-5

Appendix A: Glossary

3800 Operator Manual Getting Started

THERMOTRON This generic manual is not intended to be used to operate your equipment. 1-1

Section 1: Getting Started

This section provides the basic information you need to start using the 3800. This includes an introduction to the

instrument, a brief hardware description, and instructions for operating in manual mode, running a program, and

checking the chamber status.

•For additional hardware information, see “3800 Basic Functions” later in this section.

•For more detailed hardware information, see the CMX and CM Control Module Manual.

•For information on 3800 setup, see Section 2 of this manual.

•For information on programming the 3800, see Section 3 of this manual.

•For definitions of many of the terms used in this manual, see Appendix A (Glossary) of this manual.

Introduction to the 3800

The 3800 is a microprocessor-based programmer and controller. The programmer function allows you to program

temperature, temperature/humidity, or other types of tests and store them in program memory. You can use these

programs to operate the controller functions of the 3800.

Most 3800 programmer/controllers are configured for either single-channel operation (temperature only), or dual-

channel operation (temperature and humidity). If your 3800 is configured for dual-channel operation, it can operate

as a temperature-only system or as a temperature/humidity system.

•Typically, channel 1 is dedicated to chamber air temperature using a dry bulb thermocouple. Channel 1 operates

the chamber’s heating and cooling systems.

•Typically, channel 2 is dedicated to humidity using either a solid-state humidity sensor or a wet bulb

thermocouple. Channel 2 operates the chamber’s humidifying and dehumidifying systems.

Although the 3800 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.

NOTE: The 3800 can display only two channels at a time: either channels 1 and 2 or channels 1 and 3. If your 3800

is configured for three channels, press the CH 2 and CH 3 keys to switch between displayed channel pairs.

The 3800 can be programmed and operated locally using the display screen, soft keys, and keypad. The 3800 also

can be programmed and operated from a host computer. For more information, refer to the 3800 Computer Interface

Manual.

The controller functions operate the chamber and its attached equipment. Analog and transistor-transistor logic

(TTL) level signals control and monitor the system. The chamber’s conditioning systems, printers, chart recorders,

and solid-state relay devices are operated from the controller signals. Other analog devices also can be monitored

and operated.

Thermocouples can be mounted throughout the operating systems to feed diagnostic information back to the

controller.

Before operating the 3800, several set-up procedures must be completed. Most of the set-up procedures were

performed at Thermotron; however, these procedures may need to be performed again if requirements change. Refer

to Section 2 for setup instructions.

Getting Started 3800 Operator Manual

1-2 This generic manual is not intended to be used to operate your equipment. THERMOTRON

Display Module

The 3800 is operated using the 4-line by 20-character display, soft keys, and keypad illustrated below:

Accessing Other Screens and Functions

NOTE: In this manual function keys and soft keys are indicated in bold letters. For example, “Press RUN, then

press START” means press the function key labeled RUN, and when the run program screen appears press

the word START on the last line of the 3800 display.

For most 3800 operations you start from the main screen (shown above) and use function keys and soft keys to

access other screens and functions. To return to the main screen from any other screen, press the ESC key repeatedly

until the main screen is displayed.

•To display the cause of the last chamber stop, press STOP. NOTE: Pressing STOP while a program is running

will stop the program.

•To turn the chamber light(s) on or off, press the LIGHT function key.

•If you try to access a function that is not

available at the current access level, this screen

will appear:

For more information on access levels, see

“Changing the Access Level or Password” in

Section 2 of this manual.

3800 Operator Manual Getting Started

THERMOTRON This generic manual is not intended to be used to operate your equipment. 1-3

Context Sensitive Help System

Press HELP to access the help system from any

3800 screen. A help message such as the one in this

illustration will appear:

Some help messages contain more than one pane.

Such help messages will have a MORE soft key.

Press MORE to see the next pane.

To exit the help system, press HELP a second

time.

3800 Basic Functions

The following sections provide brief descriptions of some of the 3800 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 3800 adjusts its control outputs based on those inputs.

•Typically, channel 1 uses a dry bulb thermocouple sensor mounted in the chamber airflow to sense air

temperature. The sensor inputs through the thermocouple input. Its outputs control the heating and cooling

systems.

•Typically, channel 2 uses either a solid-state humidity sensor or a wet bulb thermocouple to monitor chamber

humidity. The reading from the solid-state sensor or wet bulb thermocouple is used together with the reading

from the channel 1 dry bulb thermocouple to calculate chamber humidity. The channel 2 outputs control the

humidity system’s steam generator and dehumidify coil.

•Channel 3, if available, can sense temperature or linear inputs. These channels commonly are configured for

such options as Product Temperature Control or altitude.

•Channels 5 through 8 can be programmed at the factory as constant control channels. Each channel can be set at

the factory to sense either temperature or linear inputs.

Chamber Conditioning System Signals

The chamber conditioning signals are used by the controller to operate chamber systems such as heating, cooling,

and humidity. These signals are dedicated to the system and are internally programmed.

•The system, refrigeration, and humidity enable outputs allow their respective systems to turn on.

•The heat and cool outputs control their systems. For example, the channel 1 cool output normally operates the

solenoids that regulate the flow of refrigerant into the chamber’s evaporator coil.

•The auxiliary cool output operates any auxiliary cooling system, such as liquid nitrogen (LN

) or carbon dioxide

(CO

Alarm Output Signals

The alarm output transistor-transistor logic (TTL) signals indicate when the chamber temperature or humidity

exceeds the programmed limits. Two types of alarms are available for each channel:

•Deviation alarms are activated when the chamber temperature, humidity, or other process variable is outside the

channel’s deviation alarm band. A deviation alarm band restricts how far the process variable can be from set

point. For example, a deviation alarm band of 5°C activates the alarm output if the chamber temperature is more

than 5°C from set point.

Getting Started 3800 Operator Manual

1-4 This generic manual is not intended to be used to operate your equipment. THERMOTRON

Deviation alarms can be set for each manual mode test or program interval. For more information, see “Running

in Manual Mode” below, or Section 3 later in this manual.

•Process alarms are activated when the chamber temperature, humidity, or other process variable is outside the

process limits. The process alarm settings restrict the high and low limits of a test. A process alarm stops the

programmer/controller. For example, if the high process alarm limit is +125°C, the alarm is activated if the

temperature equals or exceeds +125°C.

Process alarms are a configuration setting that can be adjusted only in setup mode. For more information, see

Section 2 later in this manual.

Auxiliary Outputs

Auxiliary outputs provide programmable TTL level outputs. There can be up to two groups of eight auxiliary

outputs. These outputs are programmed on and off during each program interval or during manual mode operation.

These outputs normally are used to program systems on and off. For information on your chamber’s auxiliary

outputs, see your chamber manual.

Running in Manual Mode

Manual mode allows you to operate the 3800 controller functions. Manual mode operates the chamber using set

point and rate of change (ramp rate) settings. You can enter manual mode when the system is in stop mode. You also

can enter manual mode from hold program mode if, while running a program, you want to perform a special

operation in manual mode and then continue with the program.

Manual Mode

1. From the main screen press MN/PRG, then

press MANUAL. The manual mode screen

will appear:

2. Use the left and right arrow keys to cycle

through the values, such as set point (SP),

shown on the last line of the display.

3. To change a value, follow these steps:

a. Press the setting’s edit icon .

b. If the edit icon becomes a blinking cursor, use the numeric keypad to edit the selected value and press ENT.

c. If the edit icon becomes a down arrow , press CLR to toggle the setting on or off.

d. If you press MONITR the monitor

channels screen will appear. See “Viewing

the Monitor Channel Readings” in Section

2 of this manual.

e. If you press SERVCE the service status

screen will appear. See “Service Status

Functions” in Section 2 of this manual.

f. If you press T-ALRM the Therm-Alarm

status screen will appear. See Section 4 of

this manual.

g. If you press the edit icon for the CONTROL PARAMETERS setting, the control parameters screen will

appear. See “Adjusting Standard Control Parameters” or “Adjusting PTC Control Parameters” in Section 2

of this manual.

3800 Operator Manual Getting Started

THERMOTRON This generic manual is not intended to be used to operate your equipment. 1-5

4. The following list describes the manual mode values displayed:

•SP (set point): Enter the desired value for each active channel. When the ramp rate is not zero, the set point

will change toward this new value at the selected rate.

•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 3800 is running. For more information on auxiliary

relays, see “Auxiliary Outputs” earlier in this section.

•RUN TIME: The length of the manual mode test in hours, minutes, and seconds. This setting cannot be

edited.

•PTC (product temperature control): An optional heating and cooling process that controls the process

variable from the product temperature rather than the test space air temperature. NOTE: Product

temperature control is disabled if humidity is enabled.

•HUM (humidity): Enables the optional humidity system. NOTE: Humidity is disabled if product

temperature control (PTC) is enabled.

•CONTROL PARAMETERS: For more information on parameter groups, see “Adjusting Standard

Control Parameters” or “Adjusting PTC Control Parameters” in Section 2 of this manual.

•TH (throttle): Positive values indicate heating; negative values indicate cooling. The throttle setting is

editable only in manual throttle mode. See “Manual Throttle Mode” below.

•DV (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 3800 will monitor both positive and negative deviations.

•RR (ramp rate): Enter the desired number of degrees per minute. If you enter a setting other than zero, the

controller ramps to the new set point, changing the set point in a timed ramp. If you enter a zero, the

controller performs a step change. During a step change, the 3800 outputs a full demand (±100% throttle)

until it enters the set point’s proportional band.

5. To start running in manual mode using the settings entered above, press RUN.

6. To temporarily suspend a manual mode test, press HOLD. To resume the test, press RUN again.

7. To stop manual mode operation, press STOP.

Manual Throttle Mode

Manual throttle mode is provided to allow you to troubleshoot your chamber with the assistance of a Thermotron

Technical Liaison. For assistance please call the Thermotron Product Support group at (616) 392-6550 between 8:00

a.m. and 4:30 p.m. Eastern Standard Time. (NOTE: Manual throttle mode is available only at the Cal Lab access

level and above.)

To run a test in manual throttle mode, follow these steps:

1. Begin a manual mode test. If needed, see

“Manual Mode” above.

2. Use the left and right arrow keys to cycle

through the manual mode values until the

throttle (TH) setting appears.

3. Press the throttle setting’s edit icon .

Getting Started 3800 Operator Manual

1-6 This generic manual is not intended to be used to operate your equipment. THERMOTRON

4. You will be asked if you want to enter manual

throttle mode. Press YES.

5. A small mwill appear next to the throttle

setting to indicate manual throttle mode. To

adjust the manual throttle setting, press the edit

icon.

6. You will be asked if you want to edit the

manual throttle setting. Press EDIT.

7. Use the numeric keypad to edit the selected

value and press ENT.

8. To temporarily suspend a manual mode test, press HOLD. To resume the test, press RUN again.

9. To exit manual throttle mode, press the throttle (TH) edit icon, then press OFF.

10. To stop manual mode operation, press STOP.

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