SCIENTIFIC INSTRUMENTS 9700 User manual

SCIENTIFIC INSTRUMENTS, INC.
090-256
OPERATION MANUAL
for
9700 TEMPERATURE CONTROLLER
Record of Revisions
Rev RFEA # Description Rev by Date Appr by Date
-
A
B
C
D
E
F
G
H
J
K
0728
0729
0734
0768
0850
0878
Initial Release
Modified Specifications
Modified Specifications
Added T/C Support
Added variable external
T/C reference
Modified for electronic
distribution
Corrected for new GUI
version
Revised rear panel,
other changes
New T/C board
Documentation and
spec. refinements
Additional Safety Notes
DS
DS
MS
MS
MS
MS
MS
MS
SL
MS
5/9/02
5/29/02
7/31/02
8/30/02
12/18/02
01/20/03
03/28/03
06/18/03
05/06/04
09/23/04
DS
DS
DS
DS
MS
MS
WJ
WJ
MS
DS
5/9/02
5/29/02
7/31/02
9/3/02
12/18/02
01/20/03
03/28/03
06/18/03
05/20/04
09/23/04

090-256 i
TABLE OF CONTENTS
Quick Start - Model 9700 Temperature Controller -......................................................... 1
Quick Start - Model 9700 Temperature Controller Graphical User Interface -................. 5
Quick Start - Model 9700 Thermocouple Option - ........................................................... 9
1IMPORTANT SAFETY INFORMATION.................................................................. 1-1
1.1 Heater Considerations................................................................................... 1-1
1.2 Auxiliary Outputs (Heater Voltage and Analog) ............................................. 1-1
1.3 Flashing Alarm LED....................................................................................... 1-1
1.4 Heater Fuse................................................................................................... 1-1
1.5 Temperature Display of 999.9 ....................................................................... 1-1
1.6 Grounding Lug............................................................................................... 1-2
1.7 Instrument Case ............................................................................................ 1-2
2DESCRIPTION ....................................................................................................... 2-1
2.1 Standard Features......................................................................................... 2-1
2.2 Options .......................................................................................................... 2-1
2.3 Controller Specifications................................................................................ 2-2
2.3.1 User Interface........................................................................................ 2-2
2.3.2 Sensor Inputs ........................................................................................ 2-2
2.3.3 Optional Signal Conditioning Cards....................................................... 2-3
2.3.4 Main Heater Output ............................................................................... 2-3
2.3.5 Analog Output ....................................................................................... 2-3
2.3.6 Communication Interface....................................................................... 2-3
2.3.7 Relay Outputs........................................................................................ 2-4
2.3.8 General.................................................................................................. 2-4
3SENSOR SELECTION ........................................................................................... 3-1
3.1 Standard Factory Settings ............................................................................. 3-1
3.2 Sensor Performance...................................................................................... 3-1
3.3 Sensor Curves............................................................................................... 3-1
4INSTALLATION ...................................................................................................... 4-1
5OPERATION........................................................................................................... 5-1
5.1 General Description of User Interface ........................................................... 5-1
5.2 Main Displays ................................................................................................ 5-1

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5.3 Control Modes ............................................................................................... 5-2
5.3.1 Stop ....................................................................................................... 5-2
5.3.2 Manual (Normal).................................................................................... 5-2
5.3.3 Program................................................................................................. 5-2
5.3.4 Fixed...................................................................................................... 5-3
5.3.5 AutoTune............................................................................................... 5-3
5.3.5.1 General Description ..................................................................... 5-3
5.3.5.2 Procedure .................................................................................... 5-3
5.4 Menu System ................................................................................................ 5-4
5.4.1 Set Points .............................................................................................. 5-4
5.4.1.1 Main Set Point.............................................................................. 5-5
5.4.1.2 Aux Set Point ............................................................................... 5-5
5.4.1.3 Fixed Heater (Main) ..................................................................... 5-5
5.4.1.4 Fixed Heater (Aux) ....................................................................... 5-5
5.4.2 Control Settings..................................................................................... 5-6
5.4.2.1 PID (Main).................................................................................... 5-6
5.4.2.2 PID (Aux) ..................................................................................... 5-6
5.4.2.3 PID (Zones).................................................................................. 5-6
5.4.2.4 Control Type................................................................................. 5-7
5.4.2.5 Control Sensor ............................................................................. 5-7
5.4.2.6 Max Heater Power ....................................................................... 5-7
5.4.3 Programs............................................................................................... 5-7
5.4.3.1 Edit Current Program ................................................................... 5-8
5.4.3.2 Edit Stored Program..................................................................... 5-9
5.4.3.3 Activate Program........................................................................ 5-10
5.4.4 Auxiliary Output Options...................................................................... 5-10
5.4.4.1 Analog Output ............................................................................ 5-10
5.4.4.1.1 Disable............................................................................... 5-11
5.4.4.1.2 Temperature ...................................................................... 5-11
5.4.4.1.3 Deviation from Set Point .................................................... 5-11
5.4.4.1.4 Aux PID.............................................................................. 5-11
5.4.4.1.5 Fixed Output ...................................................................... 5-11
5.4.4.2 Relay Settings............................................................................ 5-12

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5.4.5 Sensor Curves..................................................................................... 5-12
5.4.5.1 View Active Curve ...................................................................... 5-13
5.4.5.2 Edit User Curve.......................................................................... 5-13
5.4.5.3 Select Curve .............................................................................. 5-14
5.4.5.4 Correct Curve............................................................................. 5-15
5.4.6 Communication ................................................................................... 5-16
5.4.6.1 Baud Rate .................................................................................. 5-16
5.4.6.2 GPIB (or IEEE-488) Address ..................................................... 5-16
5.4.7 Instrument Setup ................................................................................. 5-16
5.4.7.1 Data Collection........................................................................... 5-16
5.4.7.2 Data Entry Mode ........................................................................ 5-17
5.4.7.3 Display Setup............................................................................. 5-18
5.4.7.4 Channel Enable.......................................................................... 5-18
5.4.8 Diagnostics.......................................................................................... 5-18
5.4.8.1 Software Version........................................................................ 5-18
5.4.8.2 Display/LED Test ....................................................................... 5-18
5.4.8.3 Keypad Test............................................................................... 5-19
5.4.8.4 Heater/Analog Output Test ........................................................ 5-19
5.4.8.5 Relay Test.................................................................................. 5-20
5.5 Thermocouple Setup and Calibration .......................................................... 5-20
5.5.1 Thermocouple Hardware Configuration............................................... 5-21
5.5.2 Entering the Thermocouple Setup & Calibration Mode........................ 5-21
5.5.3 Operation with an External Reference................................................. 5-21
5.5.4 Using Internal Room Temperature Compensation .............................. 5-22
5.5.5 Calibration of Internal Room Temperature Compensation .................. 5-22
5.6 Additional Diagnostic Features and High/Low Temperature........................ 5-23
5.6.1 Temperature High & Low Statistics ..................................................... 5-23
5.6.2 Current Adjustment Values.................................................................. 5-23
5.6.3 Heater & Analog Output Values .......................................................... 5-24
5.6.4 Communications Debug Display ......................................................... 5-24
5.7 Factory Defaults .......................................................................................... 5-24
5.7.1 Resetting Variables ............................................................................. 5-24
5.7.2 Resetting Sensor Curves..................................................................... 5-25

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5.7.3 Resetting Programs............................................................................. 5-25
6GRAPHICAL USER INTERFACE (GUI) ................................................................. 6-1
6.1 Sensor Configuration..................................................................................... 6-1
6.1.1 Loading a Sensor Curve........................................................................ 6-1
6.1.2 Activating a Sensor Curve ..................................................................... 6-1
6.1.3 Reading a Sensor Curve ....................................................................... 6-2
6.1.4 Sensor Data Format .............................................................................. 6-2
6.2 Program Editor .............................................................................................. 6-3
6.2.1 Creating a Program Temperature Profile............................................... 6-3
6.2.2 Loading a Program ................................................................................ 6-4
6.2.3 Selecting a Program .............................................................................. 6-4
6.2.4 Retrieving a Program............................................................................. 6-4
6.2.5 Saving a Program to Disk...................................................................... 6-4
6.3 Zone PID Settings ......................................................................................... 6-4
7OBTAINING PROPER TEMPERATURE CONTROL.............................................. 7-1
7.1 AutoTune....................................................................................................... 7-2
7.2 Adjustment of PID parameters ...................................................................... 7-2
7.3 Using Zone PID Control................................................................................. 7-3
8REMOTE COMPUTER INTERFACE...................................................................... 8-1
8.1 DLL Header Listing........................................................................................ 8-1
8.2 LabVIEW™ Drivers ...................................................................................... 8-3
8.3 Low Level Communications........................................................................... 8-3
8.3.1 Command Set Summary ....................................................................... 8-3
8.3.2 DETAILED COMMAND SYNTAX.......................................................... 8-4
8.3.3 Detailed Command Summary ............................................................... 8-5
9CALIBRATION........................................................................................................ 9-1
9.1 Equipment Necessary ................................................................................... 9-1
9.2 Preparation.................................................................................................... 9-1
9.3 Procedure...................................................................................................... 9-1
9.3.1 Diode and RTD Models ......................................................................... 9-2
9.3.1.1 Current Source Calibration........................................................... 9-2
9.3.1.2 A/D Converter Calibration ............................................................ 9-2
9.3.2 Thermocouple Models ........................................................................... 9-3

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10 HARDWARE......................................................................................................... 10-1
10.1 Replacing the Heater Fuse.......................................................................... 10-1
10.2 Using an External Power Booster................................................................ 10-1
11 APPENDIX A: SENSOR PERFORMANCE SPECIFICATION .............................. 11-1

9700 Temperature Controller 1 Quick Start
QUICK START
-MODEL 9700 TEMPERATURE CONTROLLER -
Congratulations!
You have purchased an innovative product from Scientific Instruments employing the latest
technology. The Model 9700 Temperature Controller is designed to combine high performance
with simplicity of use. The provided LabVIEW™ based Graphical User Interface (GUI) is a
valuable extension to the instrument, providing a simple way to collect data, change instrument
parameters, and update user curves.
Features
•(2) 24 bit A/D Converters (0.001 K resolution)
•Fail-safe 0 – 50 VDC, 1 Amp current controlled heater output (50 Watts)
•LabVIEW™ based Graphical User Interface (GUI) for Windows®
•Advanced AutoTune Capability
•RS232 and IEEE-488 Standard
•Universal AC input, 90 – 250 VAC
Hardware Installation
Before using the Model 9700 Temperature Controller, several connections must be made to the
rear panel.

9700 Temperature Controller 2 Quick Start
•Attach the power cord to the universal A/C connector.
•Wire the sensor plug(s) either to the sensor(s) to be used or to a decade box for testing.
If only one is to be used, the other channel may be left open.
•Wire the supplied banana plug to a heater or equivalent resistive load and connect to the
instrument.
•If the Model 9700 is to be used with a computer, connect a communications cable
(RS232 cable or IEEE-488 cable). Communication cables are not supplied with the unit.
Operation of the GUI is covered in a separate Quick Start document.
NOTE: Sensor plugs and communication cables may be connected and disconnected with
power applied to the controller, but normally the heater should only be connected with power
off. In the event that a heater alarm occurs (due to an open heater circuit or no heater
connected), the alarm can only be reset by removing power.
Operation
After making the connections described above, apply A/C power. In the standard configuration
of the instrument, the main display shows the temperature on channels A and B, the control set
point, percent heater power, and the mode of operation.
Pressing the rocker switch Up or Down cycles the display through the various options of the
main display. These options allow the user to see the sensor voltage (or resistance, if an RTD
device is connected).
Menu Key
The menu key provides access to the instrument’s operating parameters. Pressing the
menu key displays the main menu, which contains eight options; each of these options has
a sub-menu. The menu key is illuminated when the instrument is the menu mode. (The
control mode menu cannot be accessed while in the menu mode.)
Select menu options by moving the cursor to the desired option and pressing enter, or by
pressing the number of the desired option. Pressing the rocker switch up or down moves
the cursor up or down in the menu one line at a time. Pressing the rocker switch left or right
moves the cursor up or down two lines at a time.
A one-page overview of the menu structure has been provided as a reference guide to
assist in locating menu options. Press the menu key again to exit the menu mode.
Changing the Set Point
To change the main set point, press “menu, 1, 1” and enter the new number, or press
escape to return to the main display. For more instructions on editing numbers and menu
navigation, see the “Fine Points” section at the end of this Quick Start.
Setting PID Values
Default values for the PID constants are set at the factory. To customize the PID values for
your control environment, press “menu, 2, 1.” The PID values are displayed in sequence.
For further instructions on editing numbers and navigating the menu, see the “Fine Points”
section at the end of this Quick Start.

9700 Temperature Controller 3 Quick Start
Warning!!!
The Model 9700 is capable of supplying 50 watts. If this will exceed the power rating of your
heater, you should limit the power using the “Maximum Heater Power” parameter (accessed by
pressing “menu, 2, 6”). Proper heat sinking must be provided for the heater.
Control Key
Pressing the control key displays a menu with the possible control modes. To select an
option, either move the cursor with the rocker switch to the desired option and press enter,
or simply press the number of the option. When a control mode is selected, the control key
lights to show that the instrument is controlling. The “percent heater power” field on the
main display allows monitoring of the heater power. The heater bar graph provides a more
visible, but less accurate indication of heater power.
To end control, simply press the control key again. The control button will no longer be
illuminated and the instrument will return to the STOP mode. A Useful Shortcut: Press the
control key once to display the control options menu. Press the control key a second time to
start the instrument controlling in the manual control mode (Norm). Note that the control key
is not accessible in the menu mode (activated by the menu key, as explained above) except
to stop control.
AutoTune
One of the first things you will want to do to help find the optimal control settings for your
control environment is try the AutoTune feature. This is an innovative feature that tests
system response and recommends PID values. Instructions for running AutoTune are
beyond the scope of this Quick Start, but can be found in the manual. Please refer to those
instructions, since an AutoTune started improperly will not be successful.
Setting Communication Parameters
In order to use the Model 9700 GUI or any other remote interface, it is necessary to have
communication parameters set properly. Press “menu, 6, 1” to access the baud rate for
RS232, or “menu, 6, 2” to set the GPIB address. A separate “Quick Start” document covers
the use of the Model 9700 GUI.
Fine Points
Editing
There are several tips that may prove useful while editing a number. To replace an existing
number, simply enter the new digits. Alternatively, individual digits of the existing number
can be replaced in the overtype mode. To enter the overtype mode, press the rocker switch
right or left. The cursor stops flashing and changes to an underline. When the cursor is at
the digit to be replaced, press the new digit. Pressing the rocker switch up or down
increments or decrements the digit where the cursor is located. Pressing enter accepts the
new number, while pressing escape will restore it to its original value.
Notes on Menu Navigation
When exiting from editing a number (either by pressing enter or escape), the display will
return to the previous menu, or it will exit the menu mode and return to the main display.
This depends on whether the data entry mode (menu, 7, 2) is set to “Remain in Menu,” or
“Exit Menus.”

9700 Temperature Controller 4 Quick Start
MENU STRUCTURE FOR MODEL 9700 TEMPERATURE CONTROLLER
1) Set Points
1) Main Setpoint – Set point for the main control loop
2) Aux Setpoint – Set point for the auxiliary control loop
3) Fixed Htr (Main) – Fixed percentage applied to heater if Fixed Control Mode is selected
4) Fixed Htr (Aux) – Fixed percentage applied to Analog Output if A-Out Type is “Fixed Output”
2) Control Settings
1) PID (Main) – Cycles through P, I, & D for Main Control Loop
2) PID (Aux) – Cycles through P, I, & D for Auxiliary Control Loop
3) PID (Zones) – Cycles through set point, P, I, & D for each zone used in Zoned PID Control
4) Control Type – Selects either Normal PID Control or Zoned PID Control
5) Control Sensor – Assigns the main control loop to Channel A or Channel B
6) Max Heater Power – Provides a software limit for heater power (0 – 100%)
3) Programs
1) Edit Current Prog – Allows user to edit temperature and time points for the current program
2) Edit Stored Prog – Allows user to edit temperature & time points for a stored program
3) Activate Program – Recall a stored program to the active program position
4) Aux Output
1) Analog Output – Sets analog output to one of the following modes:
a) Disable – No voltage is output
b) Temperature – Analog output scaled between high and low scaling points
c) Deviation from SP – Deviation from the main set point (choose range scaling factor)
d) Aux PID – Acts as second PID control loop; set point is Aux Set Point
e) Fixed Output – A fixed voltage (percentage) is applied to Analog Out when control mode is on
2) Relays – Assign channel, set hysteresis & set point for relays 1 & 2
5) Sensor Curves
1) View Active Curve – View the active curve on channel A or channel B
2) Edit User Curve – Edit any of the five user curves
3) Select Curve – Choose a curve to activate on channel A or channel B
4) Correct Curve – Enter calibration points to adjust active curve on channel A or channel B
6) Communication
1) Baud Rate – Set the baud rate for RS232 communications
2) GPIB Address – Set the address used in IEEE-488 communications
7) Instrument Setup
1) Data Collection – Choose filter settings and whether RTD currents will switch
2) Data Entry Mode – Choose whether Escape & Enter exit menu mode or remain in menu mode
3) Display Setup – Set display resolution and choose either Kelvin or Celsius
4) Channel Enable – Enable or disable channel A or channel B
8) Diagnostics
1) Software Version – Displays the instrument firmware revision level
2) Display/LED Test – Lights all pixels on the display and all front panel LED’s
3) Keypad Test – Displays legend for each key pressed
4) Heater/A_Out Test – Manually sets heater output or analog output to 25% points
5) Relay Test – Manually turns each relay on or off