Luxtron FOT Lab Kit User manual
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FOT Lab Kit Fluoroptic
Thermometer
User’s Manual
For firmware version 2.80 and higher
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Confidential Information
The material contained herein consists of information that is the property of LUXTRON
Corporation and intended solely for use by the purchaser of the equipment described in
this manual. All specifications are subject to change without notice. Changes are made
periodically to the information in this publication, and these changes will be incorporated
in new editions.
LUXTRON Corporation prohibits the duplication of any portion of this manual or the use
thereof for any purpose other than the operation or maintenance of the equipment
described in this manual, without the express written permission of LUXTRON
Corporation.
Copyright
© LUXTRON Corporation 2003-2005. All rights reserved.
Trademarks
LUXTRON, Fluoroptic, and the LUXTRON logo are registered trademarks
and TrueTemp is a trademark of LUXTRON Corporation.
All other trademarks are trademarks, registered trademarks, and/or service marks of their
respective holders.
LUXTRON Corporation
3033 Scott Blvd.
Santa Clara, CA 95054-3316
Telephone (408) 727-1600
FAX (408) 727-1677
E-mail info@luxtron.com
Website http://www.luxtron.com
Part Number: 38-13745-01
Revision E
November 2005
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FOT Lab Kit User’s Manual i
Contents
Preface
1 Introduction
FOT Lab Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Fluoroptic®Technology Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2 System Components
Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Standard Options and Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
3 System Operation
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
4 User Interface Commands
Parameter Commands (Two-Letter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Action Commands (One-Letter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
5 Temperature Data Reporting
RS-232 Serial Interface Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
A Calibration Procedure
Digital Temperature Output Calibration Procedure . . . . . . . . . . . . . . . . . . A-1
Calibration Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Analog Temperature Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
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Contents
ii FOT Lab Kit User’s Manual
B Warranty and Service
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Damage In Shipment for the Original Purchaser . . . . . . . . . . . . . . . . . . . . . B-2
What to do in Case of a Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Shipments to LUXTRON for Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Shipping Address:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
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Biomedical Lab Kit User’s Manual iii
Figures
Figure 1-1 FOT Lab Kit Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Figure 1-2 Fluoroptic®Thermometry System Includes an Instrument,
Probes, and Optional Accessories.. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 1-3 Plot Representation of LUXTRON’s Fluoroptic®Thermometry
Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Figure 2-1 Standard Probes for Use with FOT Lab Kit . . . . . . . . . . . . . . . . . . . . . . 2-2
Figure 3-1 Connecting the FOT Lab Kit Components . . . . . . . . . . . . . . . . . . . . . 3-2
Figure 4-1 Sampling Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
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Figures
iv Biomedical Lab Kit User’s Manual
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FOT Lab Kit Fluoroptic Thermometer Users Manual v
Tables
Table 1-1 FOT Lab Kit Performance Specifications . . . . . . . . . . . . . . . . . . . . . . 1-6
Table 2-1 Standard Accessories for Use with FOT Lab Kit . . . . . . . . . . . . . . . . . 2-4
Table 3-1 List of Correct Lookup Tables for Various Probe Types . . . . . . . . . . . 3-3
Table 4-1 Summary Listing of Parameter Commands . . . . . . . . . . . . . . . . . . . 4-5
Table 4-2 Summary Listing of Action Commands . . . . . . . . . . . . . . . . . . . . . . . 4-5
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Tables
vi FOT Lab Kit Fluoroptic Thermometer Users Manual
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FOT Lab Kit User’s Manual Preface-i
Preface
This document describes the FOT Lab Kit Fluoroptic®thermometer
and is organized into the following sections.
■Chapter 1, “Introduction’’, provides an overview of the
LUXTRON FOT Lab Kit and Luxtron’s Fluoroptic®technology.
■Chapter 2, “System Components’’, describes the various parts
and components that make up a complete Fluoroptic®
thermometry system.
■Chapter 3, “System Operation’’, provides general instructions
on how to operate and use the FOT Lab Kit.
■Chapter 4, “User Interface Commands’’, provides a detailed
description of all user interface commands and user selectable
parameters.
■Chapter 5, “Temperature Data Reporting’’, describes the type
and format of data reported by the instrument.
■Appendix A, “Calibration Procedure’’, describes the procedure
used to calibrate the instrument.
■Appendix B, “Warranty and Service’’, provides warranty and
service information.
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Preface
Preface-ii FOT Lab Kit User’s Manual
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FOT Lab Kit User’s Manual 1-1
1Introduction
The FOT Lab Kit is a fiber optic thermometry system that allows
users to measure temperature where conventional sensors fail.
Luxtron’s unique technology, called Fluoroptic®Thermometry
(FOT), offers probes that are totally immune to electromagnetic
interference (EMI) and of entirely non-metallic construction. These
qualities make FOT probes perfectly suited for measuring
temperatures in harsh environments, such as high voltages and
strong radio frequencies (RF), often encountered during research or
in industrial processes.
Applications include:
■Medical treatment and research
MRI, microwave, laser, hyperthermia, RF ablation, cryogenic
treatments
■Semiconductor equipment
Electrostatic chucks, etch and deposition chambers, Rapid
Thermal Process chambers
■Industrial applications
RF and microwave drying, and harsh chemistries
■Utility equipment
Transformer windings and high voltage transmission lines
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Introduction
1-2 FOT Lab Kit User’s Manual
FOT Lab Kit Contents
The FOT Lab Kit includes a four-channel Fluoroptic®thermometry
instrument shielded in a rugged steel enclosure, a universal power
supply, an RS-232 cable, and a user’s manual; all within a compact
carrying case.
Figure 1-1 FOT Lab Kit Instrument
The FOT Lab Kit Instrument uses an RS-232 serial interface for
command input and data output. The unit communicates at 9,600
bps using an 8-N-1 data format. In addition, it includes a 0-10 volt
analog output for each measurement channel.
The user interface may be accessed through standard terminal
emulation software e.g. HyperTerminal, ProComm Plus, etc.
through a customer-supplied control application, or through
LUXTRON’s Windows®-based TrueTempTM software. Compatible
with Windows®95/98, Windows®NT or higher, the TrueTempTM
software offers full-featured data acquisition, graphing, and analysis.
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Introduction
FOT Lab Kit User’s Manual 1-3
System Overview
A complete FOT system consists of an instrument and probe.
Optional accessories include fiber optic extension cables, vacuum
feedthroughs, and PC acquisition and graphing software (see Figure
1-2).
Figure 1-2 Fluoroptic®Thermometry System Includes an
Instrument, Probes, and Optional Accessories.
Instrument
The FOT Lab Kit Instrument is a four channel system that includes
0 to 10V analog outputs for each channel as well as an RS-232
interface.
Probes
Luxtron offers standard fiber optic probes for use with the FOT Lab
Kit. The probes are designed to suite a variety of applications.
Some are designed to measure the bulk temperature of an object
(immersion probes) while other are designed to measure the
surface temperature of an object (surface and non-contact probes).
These probes are available in standard lengths of 2, 5, and 10 meters
(see Figure 2-1, on page 2-2 for details).
LUXTRON specializes in developing custom probes to meet the
unique circumstances of OEM applications. Non-metallic and
electrically non-conductive, the Fluoroptic®probes are immune to
EMI and high voltages that adversely affect conventional sensors
Fiber Optic
Extension Cable
(optional)
Luxtron Fluoroptic Probe
Fluoroptic Sensor
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Introduction
1-4 FOT Lab Kit User’s Manual
such as thermocouples, RTDs and thermistors. Call a LUXTRON
applications engineer to discuss development of a custom probe for
your specific OEM application. To see examples of custom probes,
visit LUXTRON’s website at www.luxtron.com.
Accessories
The most common accessory is a fiber optic extension. The
extension allows flexible mounting or locating of the instrument
with respect to the point of measurement. Standard extension
lengths are available in 2, 5, and 10 meters.
The other category of accessories is vacuum feedthroughs. These
allow either a probe or a fiber optic extension to enter vacuum
chambers through NPT fittings or ConflatTM flanges.
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Introduction
FOT Lab Kit User’s Manual 1-5
Fluoroptic®Technology Overview
The FOT Lab Kit uses LUXTRON’s patented Fluoroptic®technology,
based on a temperature sensitive phosphorescent sensor attached
to the end of an optical fiber. Pulses of light transmitted down the
fiber optic probe cause the sensor to be excited and fluoresce. The
DSP-based electronics of the FOT Lab Kit Instrument detect and
calculate the decay time of this fluorescence after each pulse. This
decay time varies precisely with the temperature of the sensor,
providing the basis for accurate temperature measurement. The
FOT Lab Kit Instrument achieves accuracy better than 0.5 oC and a
measurement range of -100 to +330 oC.
Below is a plot representation of the method used to extract the
florescence decay time (τ) of the phosphor sensor. A mathematical
curve fit correlates individual data points with stored values of (τ).
The measured value of (τ) is then conditioned with the values in a
calibration table to determine temperature.
Figure 1-3 Plot Representation of LUXTRON’s Fluoroptic®
Thermometry Technique
Time
Intensity
τ
Fluorescent
Signal
Excitation
Light Pulse
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Introduction
1-6 FOT Lab Kit User’s Manual
Table 1-1 FOT Lab Kit Performance Specifications
Number of Channels 4
Temperature Range -100 through +330 oC, depending upon probe specification
Electrical Interference Probes are immune to EMI and RF
Accuracy
Uncalibrated 1% of full scale
Calibrated ±0.5 oC within ±50 oC of calibration
Repeatability ±0.5 oC RMS at 8 samples per measurement
Temperature Resolution
RS-232 Output 0.01 oC
Analog Output 0.01 oC
Short Term Drift <0.2 oC / hour
Long Term Drift <0.5 oC / 10 days
Output Format oK, oC, oF (user selectable)
Self-diagnostic
Self diagnosis and probe error indications available through RS-232
interface
Input Power Universal power supply
Serial Output RS-232 serial interface at 9,600 bps, N-8-1, no handshake
Analog Output 0.0 - 10.0VDC
Dimensions 184mm x 144mm x 51mm
Storage Temperature -55 to +75 oC
Operating Temperature 10 to 50 oC
Maximum Humidity 80%, non-condensing
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FOT Lab Kit User’s Manual 2-1
2System Components
The FOT Lab Kit is designed to function with a variety of standard
probes and accessories produced by LUXTRON Corporation. The
various probes are designed for different applications and are
described in Figure 2-1, “Standard Probes for Use with FOT Lab Kit,”
on page 2-2. Visit LUXTRON’s website or contact the LUXTRON
Sales Department for more detailed information.
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System Components
2-2 FOT Lab Kit User’s Manual
Probes
Standard Probes Fluoroptic probes are non-metallic and immune to EMI and radio-
frequency noise. The standard probes generally consist of a fiber-
optic cable with LUXTRON’s temperature sensitive phosphor affixed
to the probing end and a fiber optic ST-style connector on the other
end for connection to the FOT Lab Kit.
Figure 2-1 Standard Probes for Use with FOT Lab Kit
Picture Description
Luxtron Part
Number
STM Probe
Application: General Purpose Immersion
Temp Range: 0 to 250 oC
Response Time: 5s in still air
0.7s in stirred water
00-13244-XX
STF Probe
Application: Fast Response Immersion
Temp Range: 0 to 295 oC
Response Time: 1.25s in still air
0.25s in stirred water
00-13737-XX
STS Probe
Application: Surface Contact
Temp Range: -25 to 200 oC
Response Time: 25ms
00-13738-XX
STR Probe Kit
Application: Non-contact Remote
Temp Range: -25 to 330oC
Includes:
0.1 gm Luxtron’s Alpha phosphor sensor powder
1mL 150oC silicon binder
1mL 250oC silicon binder
1mL 450oC silicon binder
2m STP probe blank (see image at left)
Remote Sensing User’s Guide
06-13740-01
Probe tip is a polished,
open end fiber
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System Components
FOT Lab Kit User’s Manual 2-3
Custom Probes In addition to the standard probes, LUXTRON offers a custom
development program to design and integrate probes to meet the
needs of OEM applications. Custom probes have been developed
for a wide range of temperatures (from cryogenic to over 400°C),
vacuum specifications (down to 1e-10 torr), materials and
mechanical specifications to survive various hostile environments.
Examples of some custom designs can be seen on LUXTRON’s
website at www.luxtron.com.
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Table of contents
