Teledyne TED-200 User Manual

INSTRUCTION MANUAL

TED 200-T

PORTABLE OXYGEN MONITOR

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

Teledyne Analytical Instruments

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 Electronic Technologies, 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 in strict accordance with the manufacturer's instruction manual, may cause interference 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 such interference when installed in a commercial and residential environment. Operation 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 correct the interference.

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.

Teledyne Analytical Instruments

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 MicroFuel 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, accident, 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 the following:

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.

Teledyne Analytical Instruments

iii

1 Introduction

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

2 Operations

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

T ab le of Contents

3 Maintenance and Troubleshooting

3.1 TED 200-T Overall Maintenance..................................................... 3-1

3.2 Battery Maintenance ......................................................................... 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 Optional Accessories......................................................................... A-2

A.4 Repair Service ................................................................................... A-3

A.5 Environmental Effects ....................................................................... 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

Teledyne Analytical Instruments

About This Manual

The TED 200-T Operator's Manual provides both introductory and detailed information 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.

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.

Teledyne Analytical Instruments

Introduction 1

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.

Figure 1: Front view of the TED 200-T

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.

Teledyne Analytical Instruments

1-1

1 Introduction

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.

1-2

Teledyne Analytical Instruments

Introduction 1

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, automatic 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.

Teledyne Analytical Instruments

1-3

1 Introduction

1-4

Teledyne Analytical Instruments

Operations 2

Operations

Note: Upon receipt, INSPECT THE ENTIRE UNIT FOR DAMAGE. Check the unit

and all included accessories for broken or loose parts. If damaged, DO NOT USE. Notify the shipper, and consult Teledyne Electronic Technologies, Sensor Technologies.

Note: This equipment is internally powered.

2.1 Setup

The TED 200-T is suitable for use in many medical applications. The unit can be used on a table top or mounted on a pole using a mounting bracket (P/N B34102).

To set up and use your TED 200-T:

1. Install the batteries.

2. Install the sensor.

3. Calibrate the unit.

4. Set the alarms.

The front display touch panel is designed to insure that accidental touching or bumping of the panel will not reset any calibrations or settings. Each button used in a sequence must be pressed within five seconds of each other, and the CAL, ALARM TEST and OFF keys must be pressed twice in order to activate them. The ON/OFF key needs to be pressed once in order to turn on the TED 200-T, but must be pressed twice to turn it off.

Teledyne Analytical Instruments

2-1

+ 24 hidden pages