Teledyne TED 200-T User manual

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TeledyneAnalyticalInstruments
TED200-T
PORTABLEOXYGENMONITOR
TYPE B EQUIPMENT: Equipment providing a particular degree of protec-
tion against electric shock, particularly regarding—
• allowable LEAKAGE CURRENT
• Reliability of the protective earth connection
(if present).
P/N MC41901.02
04/09/99
ECO #99-0159
INSTRUCTIONMANUAL

TeledyneAnalyticalInstruments
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Copyright © 1999 Teledyne Electronic Technologies
All Rights Reserved
No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any other language or computer language in whole or in part,
in any form or by any means, whether it be electronic, mechanical, optical, manual, or
otherwise,without prior written consent of Teledyne ElectronicTechnologies, 16830
Chestnut Street, City of Industry, CA 91749–1580
FCC Statement
This equipment generates and uses radio frequency energy, and if not installed and used
instrictaccordancewiththemanufacturer'sinstructionmanual,may causeinterference
to radio and TV communications. It has been type-tested and certified to comply with
the limits for a Class A, and exceeds limits for a Class B, computing device pursuant to
Subpart J of FCC Rules, which are designed to provide reasonable protection against
suchinterferencewhen installed in a commercial and residential environment. Opera-
tion of this equipment in a residential area may cause interference, in which case the
user, at his own expense, will be required to take whatever measures may be required to
correcttheinterference.
Note: The above statement is required by the FCC for any device that incorporates
microprocessors.
NOTE: This analyzer has been evaluated according to ISO 7767
1997 Non compliances to this standard exist in relation to
the requirements for Alarm frequency, audibility, maximum
silence period, and low alarm threshold minimum level.

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TeledyneAnalyticalInstruments
Warranty
Teledyne warrants that the goods are free from defects of material and of construction
for a period of 2 years from the date of shipment from Teledyne. The Class T-7 Micro-
Fuel Cell is warranted for one year from the date of shipment from Teledyne. The
liability of Teledyne, if any, shall be limited solely to the replacement and repair of the
goods and shall not include shipping costs or other incidental damages as defined in
Section 2-715 of the U.S. Uniform Commercial Code.
This warranty is null and void if any goods are subjected to misuse, negligence, acci-
dent, or repairs other than those performed by Teledyne or an authorized service
center.
CAUTION: Federal law restricts this device to sale by or on the order of
a physician.
RFI/EMI Immunity
The Teledyne Model TED 200-T has been tested to the standard required by the
European Community for CE marking, EN 60601-1-2.
The sample subjected to testing passed all sections of this testing with the exception of
thefollowing:
From 26MHz to 250MHz, the display was unstable. When interference
was removed, the equipment under test recovered.
From 250MHz to 1000MHz, the display was stable.

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Table of Contents
1Introduction
1.1 Applications ...................................................................................... 1-1
1.2 Theory of Operation.......................................................................... 1-2
1.2.1 Sensor ..................................................................................... 1-2
1.2.2 Signal Processing .................................................................... 1-3
2Operations
2.1 Setup ................................................................................................. 2-1
2.1.1 Battery Installation or Replacement........................................ 2-2
2.1.2 Sensor Installation or Replacement......................................... 2-3
2.1.3 Calibration............................................................................... 2-4
2.1.4 Alarms ..................................................................................... 2-5
2.2 Use .................................................................................................... 2-6
2.2.1 Procedure................................................................................ 2-6
2.2.2 Anesthetic Gases ..................................................................... 2-7
2.2.2.1 Gasses That Induce Reading Error ..................................... 2-7
2.2.2.2 Care After Use in Nitrous Oxide......................................... 2-8
2.2.3 Sterilization ............................................................................. 2-8
2.3 Do's & Don'ts .................................................................................... 2-9
3MaintenanceandTroubleshooting
3.1 TED 200-T Overall Maintenance ..................................................... 3-1
3.2 BatteryMaintenance ......................................................................... 3-1
3.3 Sensor ............................................................................................... 3-2
3.4 Troubleshooting ................................................................................ 3-2
Appendices
A.1 Specifications .................................................................................... A-1
A.2 Spare Parts List ................................................................................. A-1
A.3 OptionalAccessories......................................................................... A-2
A.4 RepairService ................................................................................... A-3
A.5 EnvironmentalEffects ....................................................................... A-3
A.5.1 Pressure .................................................................................. A-4
A.5.2 Humidity................................................................................. A-4
A.5.3 Temperature ........................................................................... A-5
A.5.4 Discrepancy in Readings ........................................................ A-5
A.6 Material Safety Data Sheet ............................................................... A-6

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TeledyneAnalyticalInstruments
How To Use This Manual
This manual is designed to walk you through the initial set-up of the TED 200-T.
After you have used it to initially install your monitor, it becomes a quick reference
guide to help you with specific questions or operating problems.
Before you even turn on the monitor, you are advised to read Chapters 1 and 2. These
chapters help you to become better acquainted with the monitor and how it works
before you actually begin to use it.
Please read Chapter 2: Operations in its entirety before proceeding further with the
manual.
About This Manual
The TED 200-T Operator's Manual provides both introductory and detailed informa-
tion for installing and operating the monitor. The manual takes you from the time you
unpack the box until you complete the first normal operating sample gas analysis. The
bulk of the manual contains operating procedures and information. There are also
cautions, warnings, and guidelines to ensure that your monitor operates normally and
to its full potential. A complete product specifications and spare parts list is also
included as an appendix.
Chapter 1: An introduction to the monitor and its components, features and applica-
tions.
Chapter 2: Step-by-step set-up procedures and information.
Chapter 3: A guide for daily operational maintenance and troubleshooting.
Appendix: Specifications and available spare part options for the monitor, and
detailed application considerations to aid in troubleshooting, etc.

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Introduction 1
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TeledyneAnalyticalInstruments
Introduction
The Teledyne Electronics Technologies 200-T Portable Oxygen Monitor is an
easy-to-use, portable instrument that provides fast and accurate oxygen monitoring
and audio/visual alarm capability. The TED 200-T is designed to monitor up to 100 %
oxygen concentration in medical gas mixtures. Because it is microprocessor-based,
the TED 200-T has a unique combination of features and is very easy to use through a
touch panel designed for minimal operator interface.
1.1 Applications
The TED 200-T is designed to be used for monitoring oxygen concentrations in a
variety of medical gas mixtures. This instrument should never be used as a primary
monitoring device. It is recommended that the instrument only be used as a secondary
measuring device to verify the concentration of oxygen in gas mixtures prepared
using a gas blender, anesthesia gas machine, or similar apparatus.
Figure 1: Front view of the TED 200-T

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The monitor may be used for verifying oxygen concentrations in gas mixtures
used in:
• Anesthesia
• Respiratory Therapy
• Neonatal Care.
1.2 Theory of Operation
The TED 200-T can be divided into two major functional groups:
• the T-7 Sensor and
• Signal Processing.
The analyzer uses Teledyne Electronics Technologies Class T-7 oxygen sensor.
The current output from the sensor is fed into the electronic signal processor, where it
is used to calculate the oxygen gas concentration and display it on the LCD screen.
The data from the sensor is compared to values set by the user, and sets off the alarms
if it exceeds those values.
1.2.1 Sensor
The T-7 oxygen sensor is a galvanic cell that is made up of a cathode and anode
immersed in electrolyte and packaged in a small plastic container. Oxygen entering
the sensor stimulates a proportional amount of electrical current between the anode,
cathode and electrolyte. This current is sent to the microprocessor, which measures
and displays it as a percentage on the LCD screen, and then compares it to the alarm
standards set by the user. If it exceeds alarm limits, the alarms are triggered.
CAUTION: The electrolyte used in the T-7 sensor is caustic. Do not try
to open the sensor assembly. Check the sensor regularly
for leaks. If the sensor is leaking, discard of it in a safe
manner. Do not try to repair it. Consult the Material Safety
Data Sheet in the Appendix for handling guidelines.
Attached to the T-7 sensor is a removable plastic diverter. This diverter is used to
facilitate the transport of gas mixtures through the sensor. The diverter, packaged
separately when shipped, is necessary when the tee adapter is used to sample gas
flowing through a tube.
The diverter is not necessary and should not be used when the sensor is placed
directly in a chamber, or when the sensor is used in confined volume monitoring, such
as incubators and inhalation tents.

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CAUTION: Remove and save the diverter when the sensor is used in
confined volume applications.
1.2.2 Signal Processing
The electrical current developed in the sensor is sent to the microprocessor for
processing. Processing includes amplification, conversion to digits, and comparison
to alarm standards. Using a microprocessor allows for easier setting of alarms, auto-
matic calibration, and self-diagnosis. When the battery runs low or the unit needs
recalibration, the TED 200-T tells you so.
The oxygen level is calculated and then displayed on the liquid crystal display
(LCD) on the front panel.
User-programmed high and low alarm setpoints are stored in random access
memory (RAM) which resides within the microprocessor. The oxygen level calculated
by the microprocessor is compared to these setpoints , and an alarm activated, if
necessary.
The audio alarm itself can be manually bypassed for a set amount of time by the
user. Pressing the ALARM SILENCE key will stop the alarm in increments of 30, 90,
and 180 seconds. The alarm can also be turned back on after silencing.

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