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Summary of Contents for Newport 325B
- Page 1 300B Series Temperature Controllers User’s Manual...
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Page 2: Eu Declaration Of Conformity
We declare that the accompanying product, identified with the mark, complies with requirements of the Electromagnetic Compatibility Directive, 89/336/EEC and the Low Voltage Directive 73/23/EEC. Model Number: Model 325B and 350B Series Temperature Controllers Year mark affixed: 2004 Type of Equipment: Electrical equipment for measurement, control and... -
Page 3: Warranty
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE PURCHASE OR USE OF ITS PRODUCTS. First printing 2004 © 2004 by Newport Corporation, Irvine, CA. All rights reserved. No part of this manual may be reproduced or copied without the prior written approval of Newport Corporation. -
Page 4: Service Information
Preservation of Secrecy and Confidentiality and Restrictions to Access: Customer shall protect the Newport Programs and Related Materials as trade secrets of Newport, and shall devote its best efforts to ensure that all its personnel protect the Newport Programs as trade secrets of Newport Corporation. -
Page 5: Technical Support Contacts
Return the product to Newport Corporation, freight prepaid, clearly marked with the RMA# and we will either repair or replace it at our discretion. Newport is not responsible for damage occurring in transit and is not obligated to accept products returned without an RMA#. -
Page 6: Table Of Contents
Table of Contents EU Declaration of Conformity............... ii Warranty....................iii Technical Support Contacts ..............v Table of Contents ................. vi List of Figures ................viii List of Tables ................. ix Safety Precautions Definitions and Symbols ............11 1.1.1 CSA Mark with “C” and “US” Indicators .......11 1.1.2 European Union CE Mark ..........11 1.1.3 Alternating voltage symbol ..........11 1.1.4 On ..................12... - Page 7 Preface System Operation Front Panel.................. 25 4.1.1 AC Power Switch ............25 4.1.2 Analog Output ..............25 4.1.3 Mode Switch..............26 4.1.4 Output Section ..............26 4.1.5 Status ................27 4.1.6 Display................27 4.1.7 Control Knob ..............28 Rear Panel................... 28 4.2.1 USB Interface ..............28 4.2.2 Sensor Select Switch ............28 4.2.3 TE Driver Output Connector ...........28 4.2.4 AC Power Inlet ..............29 4.2.5 Frame or Chassis Terminal..........29...
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Page 8: List Of Figures
AC Receptacle Warning Label..........14 Figure 10 Locations of warnings on the rear panel ........16 Figure 11 Front Panel Layout (325B shown) ........... 25 Figure 12 Rear Panel ................28 Figure 13 Application front panel (TEC Tab) .......... 45 Figure 14 Application front panel when communicating (LDD Tab).. - Page 9 Preface List of Tables Table 1 Specifications Tables ............... 19 Table 2 Command Summary ..............33 Table 3 Comparison of Curve Fitting Equations ........51 Table 4 Thermistor Constants ............... 52...
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Page 11: Safety Precautions
1.1.2 European Union CE Mark Figure 2 CE Mark The presence of the CE Mark on Newport Corporation equipment means that it has been designed, tested and certified as complying with all applicable European Union (CE) regulations and recommendations. 1.1.3... -
Page 12: Off
Safety Precautions 1.1.4 Figure 4 On Symbol The On Symbol in the figure above represents a power switch position on the Model 300B Series Temperature Controllers. This symbol represents a Power On condition. 1.1.5 Figure 5 Off Symbol The Off Symbol in the figure above represents a power switch position on the Model 300B Series Temperature Controllers. -
Page 13: Protective Conductor Terminal
Safety Precautions 1.1.8 Protective Conductor Terminal Figure 8 Protective Conductor Terminal The protective conductor terminal symbol in the above figure identifies the location of the bonding terminal, which is bonded to conductive accessible parts of the enclosure for safety purposes. The intent is to connect it to an external protective earthing system through the power cord. -
Page 14: General Cautions
Safety Precautions locations in the service instructions or on the equipment. Only qualified service personnel should replace fuses. • • • • To avoid explosion, do not operate this equipment in an explosive atmosphere. • • • • Qualified service personnel should perform safety checks after any service. -
Page 15: Summary Of Warnings And Cautions
Do not attempt to operate this equipment if there is evidence of shipping damage or you suspect the unit is damaged. Damaged equipment may present additional hazards to you. Contact Newport technical support for advice before attempting to plug in and operate damaged equipment. -
Page 16: Location Of Warnings
Safety Precautions Location of Warnings 1.3.1 Rear Panel Fuse info Electrical Hazard MAX Power Frame or Chassis (Series 325B shown) Terminal Figure 10 Locations of warnings on the rear panel... -
Page 17: General Information
60 Watts to 130 Watts. Quiet, safe and stable output current results from a P-I-D control circuitry with complete flexibility for adjustment through the Newport LDD/TEC Application software (included) or user developed programs. The PID control algorithm is implemented to achieve optimal stability and settling... -
Page 18: Specifications
General Information 4. Analog interface provides remote control capability Specifications Model 325B Model 350B Output Type Bipolar, constant current source TEC Control Loop Type Hybrid P-I-D Maximum Current (A) ±2.5 ±5 Compliance Voltage (V) Available Output Power (W) 17.5 Accuracy (mA) ±5... -
Page 19: Table 1 Specifications Tables
+12 V 1 mA 1 mA Overall Specifications Voltage Requirements ~100/120/220/240 VAC +/-10%, 50–60Hz 325B MAX POWER = 60W Power Requirements 350B MAX POWER = 130W Chassis Ground 4 mm banana jack Size (H x W x D) [in. (mm)] 3.5 (88) x 8.5 (215) x 12.6 (320) -
Page 20: Accessories
General Information Accessories The Model 300B Series Temperature Controllers come with a line cord for connection to AC power. To order accessories use the following part numbers: Model Description 300-02 Temperature Controller Cable 300-04 TEC/Mount Cable 300-16 10.0 kW Thermistor (±0.2°C) 300-22 AD592CN IC Sensor (-45°C to +125°C Range) 35-RACK... -
Page 21: Getting Started
Do not attempt to operate this equipment if there is evidence of shipping damage or you suspect the unit is damaged. Damaged equipment may present additional hazards to you. Contact Newport technical support for advice before attempting to plug in and operate damaged equipment. -
Page 22: Parts List
Getting Started Newport Corporation also supplies temperature controlled mounts, lenses, and other accessories. Please consult with your representative for additional information. Parts List The following is a list of parts included with the Model 300B Series Temperature Controllers: 1. User’s manual (CD) and a Printed Copy 2. -
Page 23: Power Supplies
Getting Started WARNING To avoid electric shock, connect the instrument to properly earth-grounded, 3-prong receptacles only. Failure to observe this precaution can result in severe injury. • • • • Have a qualified electrician verify the wall socket that will be used is properly polarized and properly grounded. - Page 24 Getting Started This page is intentionally left blank.
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Page 25: System Operation
Figure 11 below. Figure 11 Front Panel Layout (325B shown) 4.1.1 AC Power Switch When the AC power is turned on the unit starts up with the OUTPUT off, display in SETPOINT mode, and mode of operation in either R/T or ITE mode depending upon the mode selected when the unit was last turned OFF. -
Page 26: Mode Switch
System Operation The thermistor current selection values are either 10µA or 100µA and result in either 100 kΩ/V or 10 kΩ/V respectively. Both IC sensors have a transfer function of 100°C/V. Analog Output Level, VDC (BNC Connector) R/T or I MODE Range Output Voltage Level... -
Page 27: Status
System Operation 4.1.5 Status The STATUS indicator LEDs show whether the device under temperature control is being heated or cooled. 4.1.6 Display A 3 1/2 digit green LED display is located in the top center of the front panel. It reads in kΩ when displaying a thermistor resistance value, °C when displaying an IC sensor temperature or temperature equivalent to a thermistor resistance value, or Amps when in the constant current I mode. -
Page 28: Control Knob
System Operation 4.1.7 Control Knob The knob control on the right side of the front panel sets the appropriate reference value corresponding to either resistance (thermistor), temperature (thermistor and IC sensors), or TE current (I ) to be maintained by the Model 300B Series Temperature Controller. -
Page 29: Ac Power Inlet
System Operation TE- Connections to provide redundancy and reduce the voltage drop in the cable. Wire Color Pin # Connection (300-02 cable) 1 & 2 TE + 3 & 4 TE - BLACK TE SHIELD SENSOR SHIELD SENSOR + GREEN SENSOR - WHITE 4.2.4... - Page 30 System Operation This page is intentionally left blank...
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Page 31: Computer Interfacing
Computer Interfacing Memory The calibration constants and other temperature controller parameters that must be retained even when the power is removed from the unit are stored in an electrically erasable programmable memory (EEPROM). Commands and Queries There are two types of device commands: commands that cause the instrument to take a desired action, and queries that return a stored value or state of the instrument. - Page 32 Computer Interfacing separating 5 queries. The controller responds to this command string with a response that has 5 values using a comma (,) as a separator. COMMAND STRING: TEC:OUT?;TEC:SET:I?;TEC:I?;TEC:SET:R?;ERR? INSTRUMENT RESPONSE: 0,1.25,0.00,10.00,0 COMMAND TERMINATION: All commands sent to the instrument must be terminated by <Carriage Return><Line Feed>.characters.
- Page 33 Computer Interfacing Commands common to both Temperature Controllers and Laser Diode Drivers: Command Syntax Command Description Remarks Clear status and response *CLS buffer command *IDN? Identification Query *RCL Recall Settings Restore instrument to setup state stored in its non- volatile local memory Reset Instrument *RST Save Settings...
- Page 34 This query will cause the instrument to return an identification string. Remarks Controller Model Firmware Firmware Serial # date name version # NEWPORT XXXX vYYY mm/dd/yy, SN ZZZZ Examples: NEWPORT 325B v2.00 05/17/04,SN 1 NEWPORT 350B v2.00 05/17/04,SN 1 *RCL Recall command. Description *RCL value Syntax Argument...
- Page 35 Computer Interfacing *SAV Save command. Description *SAV value Syntax Argument Value Description Value Invalid Saves current settings to working settings Saves current settings to user settings The save command stores the current state of the instrument in non- Remarks volatile local memory. This state is then recalled by using the *RCL recall command. *RCL See Also *STB?
- Page 36 Computer Interfacing ADDRess? USB address query. Description ADDRess? Syntax ADDRess query returns the controller’s USB address. Remarks Response Value Description address Reserved 1 to 99 Valid USB address range ADDRess See Also ERRors? Error query. Description ERRors? Syntax The ERRors? query returns a list of commands and device errors which have occurred Remarks since the last query.
- Page 37 Computer Interfacing COMP VOLTAGE LIMIT ERROR The output has been turned OFF because the forward voltage drop of a TE module exceeds the compliance voltage specified in the Specification table. Once the fault is corrected, “TEC:OUTput 1” command must be issued once to clear the error indication, and a second time to restore current to the TE module.
- Page 38 Computer Interfacing Response Description Measured temperature in °C measured temp This measurement is updated approximately once every 225 milliseconds. LOCAL Return to local mode (from USB remote) Description LOCAL Syntax Returns the controller to local mode after being placed in remote mode by the USB Remarks interface.
- Page 39 Computer Interfacing TEC:GAIN:PID TEC PID controller gain constants command. Description TEC:GAIN:PID Kp,Ki,Kd Syntax The TEC:GAIN:PID command sets the proportional, integral and derivative control Remarks gain constants. Argument Value Description 1 to 1000 Proportional gain constant Integr 1 to 1000 al gain constant 1 to 1000 Derivative gain constant TEC:GAIN:PID 50,2,20 Examples...
- Page 40 Computer Interfacing TEC:ITE? Syntax The TEC:ITE? query returns the value of the measured TEC output current. Remarks Response Description measured output Current in Amps The TEC current is constantly measured and updated, regardless of the TEC mode of operation. This measurement is updated approximately once every 225 milliseconds. TEC:ITE See Also TEC:LIMit:ITE...
- Page 41 Computer Interfacing TEC:MODE:R TEC R mode command. Description TEC:MODE:R Syntax The TEC:MODE:R command selects TEC constant thermistor resistance mode. Remarks Since sensor resistance (or linear sensor reference) is a function of temperature, this mode also controls the TEC output temperature, but it bypasses the use of the conversion constants for set point calculation.
- Page 42 Computer Interfacing TEC:OUTput TEC output enable command. Description TEC:OUTput enable Syntax The TEC:OUTput command enables or disables the TEC output. Remarks Argument Value Description enable After the output is turned on, it may be useful to wait until the output is stable (within tolerance) before performing further operations.
- Page 43 Computer Interfacing TEC:R? TEC measured R query. Description TEC:R? Syntax The TEC:R? query returns the value of the TEC thermistor measurement. Remarks Response Description R value Measured Thermistor resistance in k Ohms This measurement is updated approximately once every 225 milliseconds. TEC:R See Also TEC:SENsor?
- Page 44 Computer Interfacing Response Description set point Thermistor set point in k Ohms TEC:R See Also TEC:SET:T? TEC temperature set point query. Description TEC:SET:T? Syntax The TEC:SET:T? query returns the TEC constant temperature set point value in °C. Remarks Response Description Set point in °C set point TEC:T...
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Page 45: Software Application
Software Application Overview The 300B/500B Controllers have a USB 2.0 connector on the back of the unit that is used to connect to a computer. This connector will work with USB 1.0 and 1.1 also, as it is fully backwards compatible. Provided on the CD that comes with the unit is an installation for a software application that communicates with the 300B/500B using the USB port. -
Page 46: General Usage
Software Application General Usage This software application allows the user to setup and monitor the instrument remotely. The controls on the instrument are available in the software in a very easy to read and change format. Mode Switch Communication Indicator Figure 14 Application front panel when communicating (LDD Tab) The software has two tabs, one for the (300B) TEC specific functions, and... -
Page 47: Tec Tab
Software Application Range - Set the operating range - Low/High READBACK: Output Enable - Displays output on/off state LD Current - Displays the forward laser current PD Current - Displays the monitor diode (PD) current Bandwidth - Displays the current bandwidth setting 6.3.2 TEC Tab CONTROLS:... - Page 48 Software Application This page is intentionally left blank...
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Page 49: Principles Of Operation
Principles of Operation Introduction Three factors must be taken into account when optimizing the operation of a Model 300B Series Temperature Controller: selection of both the appropriate temperature sensor and TE module heat sink, and the manner in which they are mounted. -
Page 50: The Steinhart-Hart Equation
100°C a 100k ohm thermistor would be a better selection. The rule of thumb is to operate the thermistor near the lower end of its temperature range and use the 100µA current bias. Please contact Newport’s applications engineers if you have any questions regarding the selection of the proper thermistor for your application. -
Page 51: Table Of Constants
Principals Of Operation Figure 15 Thermistor Resistance versus Temperature Error T (° ° ° ° C) T Actual Third Order Fit. Eq. 1 97072 -20.00 -0.32 55326 -10.00 -0.06 32650 0.00 0.09 19899 10.00 0.15 12492 20.00 0.13 10000 25.00 0.08 8057 30.00... -
Page 52: Working With Ic Sensors
Principles of Operation Manufacturer C1*10 C2*10 C3*10 BetaTHERM 10K3 1.129241 2.341077 0.877547 BetaTHERM 0.1K1 1.942952 2.989769 3.504383 BetaTHERM 0.3K1 1.627660 2.933316 2.870016 BetaTHERM 1K2 1.373419 2.771785 1.999768 BetaTHERM 1K7 1.446659 2.682454 1.649916 BetaTHERM 2K3 1.498872 2.379047 1.066953 BetaTHERM 2.2K3 1.471388 2.376138 1.051058 BetaTHERM 3K3... -
Page 53: Lm135/335 Series Ic Sensors
Principals Of Operation 7.3.2 LM135/335 Series IC Sensors The LM135/335 Series devices are similar to the AD590 in that they are two terminal devices and their output is directly proportional to absolute temperature. Operating like a two terminal zener diode, the LM135/335 Series temperature sensors have a breakdown voltage directly proportional to absolute temperature at +10mV/°K. -
Page 54: Mounting Considerations
Principles of Operation It is necessary to remove the heat from the hot side of the TE module. The amount of heat to be dissipated is equal to the heat pumped from the cold side plus the input power to the TE module. Although the amount of cooling is proportional to the current flowing through the TE module, the power dissipated by Joule heating (input power heating) in the TE module is proportional to the square of the current. -
Page 55: Pid Tuning
In Model 300B series instruments, a PID control algorithm is implemented to achieve optimal stability and settling performance. Temperature Thermo-Electric Temperature Controller (TE) Module (Model 325B, 350B) Setpoint Temperature Sensor (Thermistor, AD590, LM335…) Temperature Controlled Mounts (Model 700, 740, 760 series) -
Page 56: P Loop
Principles of Operation The problem for most users is to get a feeling for this formula, especially when trying to tune the PID loop. Tuning the PID means changing its three gain factors to obtain a certain system response, a challenging task to achieve without some basic understanding of its behavior. -
Page 57: Pid Loop
Principals Of Operation Thermo-Electric Temperature (TE) Module Setpoint ∫e Temperature Sensor Temperature Controller Figure 20 PI Temperature Controller Block Diagram The result is that the contribution of integral term to the control signal will increase until it reduces the temperature following error to zero. While this is desirable for many situations, the integral term can have a severe destabilizing effect on the control loop if increased too much. -
Page 58: Model 300B Series Setup
Principles of Operation Model 300B Series Setup Setting up the Model 300B Series Temperature Controller is a simple procedure. An AC power cord, supplied with each unit, must be plugged into a properly grounded outlet. The tilt up feet, at the bottom of the unit, may be extended to enhance the viewing angle of the front panel. - Page 59 Controller any of the parameters may be displayed and the status of the Model 300B Series Temperature Controller may be monitored. NOTE Newport Corporation is not in any way responsible for any damage to any device used in conjunction with the Model 300B Series products.
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Page 61: Maintenance And Service
CAUTION There are no user serviceable parts inside the Model 300B Series Temperature Controllers. Work performed by persons not authorized by Newport Corporation will void the warranty. Enclosure Cleaning WARNING Before cleaning the enclosure of the Model 300B Series Temperature Controller, the AC power cord must be disconnected from the wall socket. -
Page 62: Obtaining Service
2. Instrument serial number (on rear panel) 3. Description of the problem. If the instrument is to be returned to Newport Corporation, you will be given a Return Number, which you should reference in your shipping documents. Please fill out a copy of the service form, located on the following page, and have the information ready when contacting Newport Corporation. -
Page 63: Service Form
Maintenance and Service Service Form Newport Corporation U.S.A. Office: 800-222-6440 FAX: 949/253-1479 Name _______________________________ Return Authorization #__________________ (Please obtain RA# prior to return of item) Company ________________________________________________________________________ (Please obtain RA # prior to return of item) Address ________________________________ ____________________Date _________________ Country _______________________ Phone Number ______________________________________ P.O. - Page 64 Maintenance and Service Notes:...
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