Datex-Ohmeda D-Tec, D-Tec Vaporizer Operation And Maintenance Manual

D-Tec Vaporizer Operation and Maintenance Manual

User Responsibility

This Product will perform in conformity with the description thereof contained in this
operating manual and accompanying labels and/or inserts, when assembled, operated,
maintained and repaired in accordance with the instructions provided. This Product
must be checked periodically. A defective Product should not be used. Parts that are
broken, missing, plainly worn, distorted or contaminated should be replaced
immediately. Should such repair or replacement become necessary, Datex-Ohmeda
recommends that a telephonic or written request for service advice be made to the
nearest Datex-Ohmeda Field Service Support Center. This Product or any of its parts
should not be repaired other than in accordance with written instructions provided by
Datex-Ohmeda and by Datex-Ohmeda trained personnel. The Product must not be
altered without the prior written approval of Datex-Ohmeda’s Quality Assurance
Department. The user of this Product shall have the sole responsibility for any
malfunction which results from improper use, faulty maintenance, improper repair,
damage, or alteration by anyone other than Datex-Ohmeda.

CAUTION w U. S. Federal and Canadian law restrict this device to sale by or on the order of

a licensed medical practitioner. Outside the U. S. A. and Canada, check local
laws for any restrictions that may apply.

Datex-Ohmeda products have unit serial numbers with coded logic which indicates a
product group code, the year of manufacture and a sequential unit number for
identification.

AAA A 12345

This alpha character indicates the year of product manufacture
and when the serial number was assigned; “Y” = 1995, “Z” = 1996,
“A” = 1997, etc. “I” and “O” are not used.

D-Tec Vaporizer

Contents

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Operation And Maintenance Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.2 Component Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2.1 Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2.2 Filler Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2.3 Drain Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2.4 Power Supply Connector And Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2.5 Equi-Potential Stud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.6 Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.7 Heater Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.8 Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.9 Agent Level Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.10 Tilt Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.0 Controls And Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Dial Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Auditory And Visual Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3.2 Operational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3.3 Agent Level Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3 Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3.1 Warm-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3.4 Low Agent Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3.5 No Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3.6 Alarm Battery Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.0 Vaporizer Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 Fitting The Battery And The Mains Lead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 Vaporizer Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.0 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

5.1 Alarm And Display Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.2 Preoperative Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.3 Turning The Dial To The Required Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.4 Filling The Vaporizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.4.2 Filling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.1.1 External Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.1.2 Internal Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.3 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.2 Changing The Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

D-Tec Vaporizer Contents 1
O & M Manual Part No. 1107-0622-000 August 2001

7.0 Principle Of Operation (Fig. 19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.1 Alarm And Indicator Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.2 Delivery Of Gas/Agent Vapor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8.0 Fault Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9.0 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.1 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.2 Electrical Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.4 Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9.5 Weight And Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9.6 Flow Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9.7 Effects Of Output At Varied Altitudes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9.8 Effects Of Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9.9 Effects Of Back Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9.10 Effects Of Carrier Gas Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

10.0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

11.0 Servicing Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Illustrations

Fig. 1 Filler Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Fig. 2 Vaporizer Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Fig. 3 Dial Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Fig. 4 Front Display Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Fig. 5 Warm-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Fig. 6 Operational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fig. 7 Low Agent Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Fig. 8 No Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Fig. 9 Alarm Battery Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Fig. 10 Fitting The Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Fig. 11 Fitting The Mains Lead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Fig. 12 Mounting The Vaporizer Onto A Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Fig. 13 Locking The Vaporizer Onto A Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Fig. 14 Routing The Mains Lead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Fig. 15 Unlocking The Vaporizer From A Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Fig. 16 Alarm And Display Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Fig. 17 Amber WARM-UP Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Fig. 18 Green OPERATIONAL Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Fig. 19 Turning The Vaporizer Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Fig. 20 Inserting The Bottle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Fig. 21 Filling The Vaporizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Fig. 22 Changing The Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fig. 23 Vaporizer Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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August 2001 O & M Manual Part No. 1107-0622-000

1.0 Introduction

1.1 Operation And Maintenance Manual

This Operation And Maintenance (O & M) Manual contains the information required in order to install,
operate and maintain the D-Tec Vaporizer.

Maintenance procedures are restricted to those detailed in Section 6.0 of this manual.
Requests for servicing facilities, advice or assistance must be addressed either to a local Datex-Ohmeda

Office or to an Datex-Ohmeda Authorized Distributor.
Additional copies of this manual, quoting Datex-Ohmeda D-Tec Vaporizer O & M Manual Part No.

1107-0622-000, can be requested from a local Datex-Ohmeda Field Operations Unit or from an
Datex-Ohmeda Authorized Distributor.

It is recommended that all relevant documentation, including the O & M Manual and accompanying labels,
is immediately available to all prospective operators.

1.2 Precautions

A number of Warnings and Cautions are used throughout this manual to draw attention to the possible
hazards and/or adverse conditions which may occur if the information and instructions provided are not
strictly observed.

Cautions and Warnings are preceded by a w symbol and are used to draw attention to a condition which
can endanger either the patient or the operator and can result in damage to the equipment.

Special attention must be paid to each Warning and Caution as it appears in the manual.

w Warning: Do not fill the vaporizer with any substance other than Suprane™ (desflurane) as specified on

the front label. If any substance other than Suprane™ (desflurane) is used, patient injury could occur.

w Warning: U.S. Federal and Canadian law restrict this device to sale by or on the order of a licensed

medical practitioner.

w Warning: Before using the D-Tec Vaporizer, the Suprane™ (desflurane) package insert must be

studied. Failure to conform to the recommendations on the insert may result in patient injury.

Important:

The vaporizer manifold O-rings required for your NAD / Dräger anesthesia machine are dependent on the
place of manufacture of the anesthesia machine vaporizer manifold. Datex-Ohmeda cannot determine the
specific requirements of your NAD / Dräger anesthesia machine. Therefore, per a written request from
Dräger Medical, Inc., this D-Tec series vaporizer does not include replacement O-rings for the anesthesia
machine vaporizer manifold. Please contact your Dräger Medical representative to obtain the correct O-rings
for your system.

D-Tec Vaporizer Page 1
O & M Manual Part No. 1107-0622-000 August 2001

1.3 Symbols

Symbol Location Facility/Rating

Control Dial Standby setting
Interlock Block Setting mark - dial marking alignment point for required setting
Interlock Block Equi-potential stud - connection for minimizing electrical potential difference
Front Panel Auditory alarm mute button
Display Panel 240 ml refill mark - indicates that an additional 240 ml of agent can be added
Display Panel Symbolizes nominal agent level display when 390 ml of agent in sump (max.)
Display Panel Symbolizes nominal agent level display when only 60 ml of agent in sump (min.)
Rear Label Mains electrical supply must be single phase sinusoidal alternating current
Top Plate Label Direction of flow

w

Various Warning

2.0 Description

2.1 General

The D-Tec Vaporizer is designed to add Suprane™ (desflurane) inhalant anesthetic vapor to the medical gases supplied
to a patient. The vaporizer must only be mounted on a Dräger compatible anesthesia machine which is equipped with
an interlocking type manifold. The vaporizer must be supplied with dry medical gas and it must be connected to a
suitable electrical mains supply. However the D-Tec vaporizer cannot be used on the Narkomed Mobile anesthesia
system.

The D-Tec Vaporizer is designed to meet UL 2601-1, IEC 601-1 and IEC 601-2-13 recommendations.
When the vaporizer is connected to the electrical supply, the dial is turned to the q (Stand-by) symbol and the green

OPERATIONAL light located on the front display panel is illuminated, the vaporizer is in the electrical stand-by condition
and is ready for use, as described in Section 5.0 Operating Instructions.

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August 2001 O & M Manual Part No. 1107-0622-000

Mechanical and electrical interlocks are incorporated into the vaporizer to help ensure that the following criteria are
satisfied:

1. The vaporizer dial can only be turned from q when the vaporizer is locked onto the manifold and the green
OPERATIONAL light is illuminated to indicate that the vaporizer has attained the correct operating temperature.

2. The gas flow only enters the vaporizer which is in operation.

3. Unwanted anesthetic trace vapor is minimized after a vaporizer is turned to q.

Note: It is a requirement of the ASTM standard F1850-98 and European Standard EN 740 - Anaesthetic
Workstations And Their Modules, that an appropriate gas monitor is used to monitor the concentration of
anaesthetic agent vapor in the inspiratory gas when the vaporizer is in operation, in order to provide
protection against hazardous output in the event of a device malfunction.

w Warning: This manual and all its associated documentation must be studied before any attempt is

made to install, operate or clean any part of the D-Tec Vaporizer.

w Warning: The performance of the anesthetic machine and vaporizer may be degraded if the machine

and vaporizer are mismatched.

w Warning: Do not install a D-Tec vaporizer in the right hand position of a Narkomed 6000 as this will

result in an incorrect fit and may cause leaks in the fresh gas delivery system.

w Warning: To avoid explosive hazards, flammable anesthetic agents such as Ether and Cyclopropane

must not be used in this vaporizer. Only anesthetic agents which comply with the requirements for non­flammable anesthetic agents in the IEC 601-2-13 Standard, particular requirements for the safety of
anesthesia machines, are suitable for use in the presence of this vaporizer.

w Warning: As this vaporizer is not suitable for use with flammable anesthetic agents such as Ether or

Cyclopropane, the use of antistatic breathing tubes and face masks is not necessary. The use of
antistatic or electrically conductive breathing tubes when utilizing high frequency electric surgery
equipment may cause burns and is therefore not recommended in any application of this vaporizer.

w Warning: The functioning of this vaporizer may be adversely effected by the operation of equipment

such as high frequency surgical apparatus or short-wave therapy equipment in the vicinity.

w Warning: Do not operate the vaporizer other than with dry medical gases.
w Warning: The D-Tec Vaporizer must not be used in a Magnetic Resonance Imaging environment.
w Warning: The functioning of this D-Tec vaporizer may be adversely affected by electromagnetic

interference exceeding the levels specified in EN 60601-1-2.

w Warning: This product contains a small quantity of Mercury in the Tilt Switch mechanism and should be

disposed of according to local regulations.

w Caution: If the vaporizer is not likely to be used for a period of 12 months, the battery must be

removed. Failure to do so may result in damage to the vaporizer.

w Caution: 'No Output' alarm could be caused by downstream high frequency ventilation at greater than

60 breaths/min with an airway pressure of 100 cm H2O or pulsing the O2 flush faster than 1 pulse/sec
over a time period of greater than 10 secs.

w Caution: Refer to the User’s Manual for the Dräger Julian Anaesthesia Workstation for recommended

ventilator parameter limitations when using the D-Tec with a Julian.

D-Tec Vaporizer Page 3
O & M Manual Part No. 1107-0622-000 August 2001

2.2 Component Information

2.2.1 Power Supply Unit

The D-Tec Vaporizer uses a 100 to 120V a.c. 50/60 Hz electrical supply model. A label on the rear panel of
the vaporizer states the voltage requirement for each model.

The integral power supply unit consists of a transformer and an a.c. to d.c. converter which provides the
12V d.c. and 5V d.c. supplies for the electrical system.

2.2.2 Filler Assembly

The filler assembly, illustrated on Fig. 1,
incorporates an agent specific fitting which
helps to ensure that only a Suprane™
(desflurane) specific bottle equipped with a
"Saf-T-Fill"™ valve can be inserted in order
to fill the vaporizer.

FILLER
ASSEMBLY

AA.43.037

FILLER
PORT

FILLER
LABEL

Use Only

Desflurane

Fig. 1 Filler Assembly

2.2.3 Drain Plug

w Warning: Draining the vaporizer may result in rapid loss of pressure and/or agent which could lead to

injury to the operator.

A drain plug is located at the base of the vaporizer as illustrated on Fig. 2. The drain plug must not be
removed except at an Datex-Ohmeda Authorized Service Center.

2.2.4 Power Supply Connector And Battery

The electrical power supply connector is located in
the base of the vaporizer as illustrated on Fig. 2.

If the mains power supply fails, a Duracell 1604
or VARTA Energy 2000 battery incorporated in
the base of the vaporizer provides power for the
auditory and visual alarms only. The battery
must be replaced annually.

POWER SUPPLY
CONNECTOR

Page 4 D-Tec Vaporizer
August 2001 O & M Manual Part No. 1107-0622-000

AA.43.055

BATTERY
COVER

Fig. 2 Vaporizer Base

2.2.5 Equi-Potential Stud

The equi-potential stud Y is located on the top of the vaporizer. It provides a means of connecting a
vaporizer to the anesthesia system to minimize any electrical potential difference between the vaporizer
casing and the anesthesia system.

2.2.6 Sump

The sump provides a means of containing the agent and includes the agent filling port, the drain, the
heaters and the agent level sensor.

The sump has a total nominal capacity of 390 milliliters (ml) which consists of a nominal 330 ml indicated
volume and a nominal 60 ml reserve.

2.2.7 Heater Elements

Two 100W heater elements, located in the base of the sump, heat the agent to a nominal 39°C (102°F) to
generate the working pressure.

Two 100W heater elements located in the upper part of the vaporizer help to prevent condensation of the
anesthetic agent in the vaporizer.

The current supplied to power the heaters alternates between the two heaters in the sump and the two
heaters in the upper part of the vaporizer. This minimizes the current requirement.

The casing of the vaporizer is normally warm to the touch while it is connected to the electrical supply.

2.2.8 Monitors

Electro/mechanical monitors are incorporated to monitor the fresh gas/agent vapor pressure balance and
the agent volume.

The monitors control the operational status display and activate the appropriate alarm indication if a
monitored parameter malfunction is detected.

2.2.9 Agent Level Sensor

An agent level sensing probe is mounted in the sump to measure the agent level. When the sump contains
between 60 and 390 ml of agent, the LCD level display indicates the level of agent in the sump. If the agent
level decreases below 60 ml, the amber LOW AGENT light on the display panel flashes and the auditory
alarm is activated. If the agent level decreases below approximately 20 ml,
the red NO OUTPUT light flashes and the auditory alarm is activated. Vapor output then ceases.

2.2.10 Tilt Switch

If the vaporizer is tilted for 10-15 seconds while it is in operational mode and delivering vapor, vapor
delivery will be stopped, as indicated by the flashing No Output light and auditory alarm.

D-Tec Vaporizer Page 5
O & M Manual Part No. 1107-0622-000 August 2001

3.0 Controls And Indicators

3.1 Dial Assembly

The manually operated dial is used to select the level of agent concentration from 1% to 18%. The dial is
marked at intervals of 1% from 1% to 10% and at intervals of 2% from 10% to 18%. Selections can be
made at any setting between 1% and 18%.

The dial release incorporated in the dial
assembly must be operated in order to turn
the dial from the q (Standby) setting and it
must be operated again to turn the dial from
12% to a higher % setting. All other
settings can be made without operating the
dial release.

A solenoid interlock mechanism is also
incorporated to help to ensure that the dial
can be operated only when the green
OPERATIONAL light located on the display
panel is illuminated.

3.2 Auditory And Visual Indicators

DIAL
RELEASE

EQUI-POTENTIAL STUD

DIAL

AB.54.001

Fig. 3 Dial Assembly

Visual indicators and an auditory alarm are used to provide the vaporizer status display and also to indicate
an alarm condition, as described in Section 3.3.

Visual indicators are located on the front
display panel illustrated in Fig. 4 and the

AUDITORY ALARM
MUTE BUTTON

auditory alarm is mounted behind the
upper part of the front display panel.

An auditory alarm mute button located
above the display panel can be used to
mute the alarm temporarily under certain
conditions as described in Sections 3.3,

3.3.4 and 3.3.5.
The LCD agent level display indicates the

level of agent contained in the vaporizer
sump, as described in Section 3.3.3. The
range of indication is between a minimum
of 60 ml and a maximum of 390 ml. When
the indication is below the 240 ml refill
mark , illustrated in Fig. 4, it indicates
that an additional 240 ml of agent can be
added.

GREEN

RED

AMBER

AMBER

AMBER

DESFLURANE

OPERATIONAL

NO OUTPUT

LOW AGENT

WARM-UP

ALARM
BATTERY LOW

390 ml
NOMINAL

LCD AGENT
LEVEL
DISPLAY

240 ml
REFILL
MARK

AA.43.038

Page 6 D-Tec Vaporizer
August 2001 O & M Manual Part No. 1107-0622-000

60 ml
NOMINAL

Fig. 4 Front Display Panel