Datex-Ohmeda Tec 7 Assembly instructions

Tec 7 Vaporizer
User’s Reference Manual

User Responsibility
This Product will perform in conformity with the description thereof contained
in this User’s Reference manual and accompanying labels and/or inserts,
when assembled, operated, maintained, and repaired in accordance with the
instructions provided. This Product must be chec ed periodically. A defective
Product should not be used. Parts that are bro en, missing, plainly worn,
distorted, or contaminated should be replaced immediately. Should repair or
replacement become necessary, Datex-Ohmeda recommends that a
telephonic or written request for service advice be made to the nearest
Datex-Ohmeda Customer Service 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. 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.
w CAUTION U.S. Federal law restricts this device to sale by or on the order of a
licensed medical practitioner. Outside the U.S.A, chec local laws
for any restriction 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
T his alpha character indicates the year of product
manufacture and when the serial number was
assigned; “C” = 1999, “D” = 2000, “E” = 2001,
etc. “I” and “O” are not used.

1175-0013-000
i
Table of Contents
1 Introduction
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 Description
What is a Tec 7 Vaporizer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Control dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Safety interloc s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Vaporizer identification label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Setup and Mounting Procedure
Vaporizer mounting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Mounting the vaporizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Chec ing the vaporizer for correct mounting . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Removing the vaporizer from a manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
4 Operating Instructions
Setting the dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Filling and draining the vaporizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Filling procedure with funnel filler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Draining procedure with funnel filler . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Filling procedure with Easy-Fil
™
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Draining procedure with Easy-Fil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Filling procedure with Qui -Fil
™
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Draining procedure with Qui -Fil . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Tec 7 Vaporizer
ii
1175-0013-000
5 Maintenance
User maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
External cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Internal contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Output concentration chec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Chec ing the calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Analytical techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Service Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
6 Principle of Operation
Interloc mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Delivery of gas/agent vapor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Bypass circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Vaporizing chamber circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
7 Specifications
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Weight and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Flow characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Effects of variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Anesthetic agent consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Barometric pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Bac pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Carrier gas composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10
Time out of service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10
Effects of variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10
Warranty

1175-0013-000
1-1
1 Introduction
Precautions
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WARNING Do not fill the vaporizer with any agent other than the agent specified on
the front label. The vaporizer is designed for that agent only. If any
substance other than that specified is used, patient injury could occur.
United States (U.S.) Federal law restricts this device to sale by or on the
order of a licensed medical practitioner. Outside the U.S., chec local
laws for any restrictions that may apply.
Do not attempt to use a vaporizer that has been dropped. A dropped
vaporizer MUST be sent to the nearest Datex-Ohmeda Field Operations
Unit for servicing.
Do not use malfunctioning equipment. Ma e all necessary repairs or
have the equipment serviced by an authorized Datex-Ohmeda service
center. After repair, test the equipment to ensure that it is functioning
properly in accordance with the manufacturer’s published
specifications.

Tec 7 Vaporizer
1-2
1175-0013-000
Important European Standard EN 740 - Anesthetic Wor stations and Their Modules requires
that an appropriate gas monitor is used to monitor the concentration of anesthetic
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.
Datex-Ohmeda strongly recommends the use of anesthesia gas monitoring with this
equipment. Refer to local standards for mandatory monitoring.
Requests for servicing facilities, advice or assistance must be addressed to a local
Datex-Ohmeda office.
Additional copies of this manual, can be requested from a local Datex-Ohmeda Field
Operations Unit or a Datex-Ohmeda Authorized Distributor.
Datex-Ohmeda strongly recommends that you eep all relevant documentation,
including this manual and accompanying labels, immediately available to all users.
Symbols
Warnings and Cautions tell you about conditions that can occur if you do not follow all
instructions in this manual.
ww
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WARNING Warnings tell about a condition that can cause injury to the operator or
the patient.
ww
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CAUTION Cautions tell about a condition that can cause damage to the
equipment. Read and follow all warnings and cautions.
Caution: federal law prohibits dispensing
without prescription.
OFF symbol/OFF setting
SEV
Sevoflurane
% v/v
Percentage of anesthetic vapor per total volume.
ISO
Isoflurane z Loc
ENF
Enflurane Z Unloc
HAL
Halothane w Caution or Warning
Maximum Agent Level NN
NN
Direction of flow
Minimum Agent Level Stoc number
Systems with this mar agree with the European
Council Directive (93/42/EEC) for Medical
Devices when they are used as specified in their
User’s Reference manuals. The xxxx is the
certification number of the Notified Body used
by Datex-Ohmeda's Quality Systems.
Serial number
onl
y

1175-0013-000
2-1
2 Description
What is a Tec 7 Vaporizer?
The Tec 7 Vaporizer is designed for use in continuous flow techniques of inhalation
anesthesia. Each aporizer is agent specific and is clearly labeled with the anesthetic
agent that it is designed for.
The aporizer is temperature, flow and pressure compensated so that its output
remains relati ely constant despite cooling due to e aporation, ariations in inlet flow
and fluctuating pressures as described in Section 7, Effects of Variables.
The aporizer is designed to be used on Selectatec
®
Series Mounted Manifolds. The
aporizer can be installed on other Selectatec Manifolds but the interlock system is
designed to function on Selectatec Series Mounted Manifolds only. Mounting a Tec 7
Vaporizer on a Selectatec 7 Compatibility Block is not recommended.

Tec 7 Vaporizer
2-2
1175-0013-000
Figure 2-1 • Tec 7 Vaporizer
w WARNING Improper use may result in patient injury.
This manual and its associated documentation must be studied before
any attempt is made to install, operate or clean any part of the Tec 7
Vaporizer.
The performance of the anesthesia machine and aporizer can be
degraded if the machine and aporizer are mis-matched.
Only operate the aporizer with dry medical gases.
If a aporizer containing agent in the sump has been in erted, connect it
to a gas sca enging system, set the dial to 5% and purge the aporizer
with the carrier gas at 5 liters/minute for 5 minutes.
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CAUTION The aporizer is intended to be operated in its upright position.
Turn the aporizer to when it is not in use.
AB80008

2 Description
1175-0013-000
2-3
Components
Control dial
A single control dial with a concentration scale calibrated in percentage of anesthetic
agent apor per total olume (% / ) sets the desired concentration of the anesthetic
agent.
A dial release in the dial assembly helps pre ent accidental displacement of the
control dial from the position. To select an ON setting, squeeze the dial release
and simultaneously rotate the dial counter-clockwise.
The dial and dial release are designed to enable an ON setting to be selected using
only one hand.
afety interlocks
The aporizer incorporates an interlock mechanism. This mechanism also interfaces
with the Selectatec
®
Series Mounted Manifold to help satisfy the following criteria:
• The aporizer must be locked onto the manifold before it can be turned ON.
• Only one aporizer at a time can be turned ON when two or more aporizers are
fitted on a Selectatec
®
Series Mounted Manifold.
• The gas flow enters only the aporizer that is turned ON.
• Any unwanted anesthetic trace apor is minimized after a aporizer is turned to
.
w WARNING Earlier ersions of the Selectatec Series Mounted Manifold that pro ide
mounting positions for three aporizers require that if only two aporizers
are fitted, then the center position must be occupied. If the center
position is not occupied, the interlock that helps ensure that only one
aporizer at a time can be turned ON is ineffecti e.
Later ersions of the Selectatec Series Mounted Manifold that pro ide mounting
positions for three aporizers incorporate an additional interlock that helps ensure
that only one aporizer at a time can be turned ON e en if the center position is not
occupied.
Vaporizer identification
label
A aporizer identification label is affixed to the back panel of the aporizer as
illustrated on Fig. 2-2.
An anesthesia system fitted with a aporizer identification unit uses this label to
identify the aporizer type.

Tec 7 Vaporizer
2-4
1175-0013-000
w WARNING Do not affix any additional labels or markings to the back panel. They
may ad ersely affect the operation of the aporizer identification unit.
1. Vaporizer identification label
Figure 2-2 • Vaporizer identification label
HALOTHANE
AB80011
1

1175-0013-000
3-1
3 Setup and Mounting Procedure
Vaporizer mounting procedure
The vaporizer is designed to be used on Selectatec Series Mounted Manifolds. The
vaporizer can be installed on other Selectatec Manifolds but the interlock s stem is
designed to function on Selectatec Series Mounted Manifolds onl .
Mounting a Tec 7 Vaporizer on a Selectatec 7 Compatibilit Block is not
recommended.
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WARNING Do not lift or support the vaporizer b holding the control dial. Handle the
vaporizer with care at all times.
Before mounting a vaporizer onto the Selectatec Series manifold,
ensure that each manifold port valve O-ring is intact and that there is no
foreign matter around the mating surfaces. A damaged O-ring and/or
foreign matter around the mating surfaces can cause leaks.
Earlier versions of the Selectatec Series Mounted Manifold that provide
mounting positions for three vaporizers require that if onl two vaporizers
are fitted, then the center position must be occupied. If the center
position is not occupied, the interlock that helps ensure that onl one
vaporizer at a time can be turned ON is ineffective.
Do not use a vaporizer if the liquid level decreases below the minimum
level.
Before using a vaporizer allow it to attain the ambient temperature of the
location in which it has to be used.

Tec 7 Vaporizer
3-2
1175-0013-000
Mounting the vaporizer
Step 1
Set the dial to .
Figure 3-1 • Setting the concentration dial
Step 2
Unlock the locking lever.
• Turn the lever counter-clockwise.
• Make sure the lever releases.
Figure 3-2 • Unlocking the locking lever
Step 3
Prepare the manifold.
• Remove an plugs fitted to the
vaporizer interlock block ports.
• Verif that each manifold port
valve O-ring is intact. If
necessar , remove the existing
O-rings and fit one new O-ring to
each port valve, as described in
the relevant anesthesia s stem
User’s Reference Manual.
Replacement O-rings are
supplied with each vaporizer.
1. Vaporizer Interlock Block Port - ensure plugs removed
2. Replace Manifold Port Valve O-ring, if necessar
Figure 3-3 • Readying the manifold
Åben
AB80001
AB80002
AA13052
1
2

3 Setup and Mounting Procedure
1175-0013-000
3-3
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CA TION Push the locking lever all the wa down before turning it. The mechanism
can be damaged if an attempt is made to turn the lever before it is
pushed all the wa down.
Step 4
Install the vaporizer onto the manifold.
• Hold the main bod of the
vaporizer in an upright position
with both hands .
• Lower the vaporizer onto the
manifold, ensuring that the
vaporizer interlock block ports
engage correctl with the
manifold port valves.
Figure 3-4 • Installing the va orizer
Step 5
Lock the vaporizer onto the manifold.
• Push the locking lever all the wa
down.
• Turn it clockwise to the locked
position to lock the vaporizer
onto the manifold.
1. Locking lever
Figure 3-5 • Locking the va orizer onto a manifold
Step 6
Ensure that the vaporizer is correctl
mounted (see instructions on the next
page).
AB80018
AB80004
1
1

Tec 7 Vaporizer
3-4
1175-0013-000
Checking the vaporizer for correct mounting
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WARNING To help ensure correct operation, do not use a vaporizer that is either
visibl out of line on the manifold or that can be lifted off the manifold
when the locking lever is in the locked position.
If more than one vaporizer is fitted, visuall check to make sure that the tops of the
vaporizers are level. If the vaporizer is visibl out of line, perform steps 2 and 3 as
described in Removing the va orizer from a manifold and remount it correctl .
When the vaporizer appears to be level and the locking lever is in the locked position,
attempt to lift the vaporizer straight up from the manifold. If the vaporizer can be lifted
off the manifold, it is not correctl mounted. Remount the vaporizer (see Va orizer
mounting rocedure ).
Verif that the interlock rods are in alignment b making sure that onl one vaporizer at
a time can be turned ON.
Check the anesthesia s stem for leaks in accordance with the relevant User’s
Reference Manual with the vaporizer dial turned to 0% and then repeat the check with
the vaporizer dial turned to .
Removing the vaporizer from a manifold
Step 1
Set the dial to .
If the dial is not completel turned to
the position the vaporizer cannot
be released from the manifold.
Figure 3-6 • Setting the dial
OFF
OFF
Åben
AB80001

3 Setup and Mounting Procedure
1175-0013-000
3-5
Step 2
Unlock the locking lever.
• Turn the locking lever counter-
clockwise.
• Release the locking lever and
check that the locking lever
springs up to the unlocked
position to release the vaporizer
from the manifold.
1. Locking lever
2. Dial
Figure 3-7 • Unlocking the locking lever
Step 3
Carefull lift the vaporizer up from the
manifold.
Figure 3-8 • Lifting the va orizer
AB80003
Unlocked
1
2
1
2
Locked
AB80019

Tec 7 Vaporizer
3-6
1175-0013-000

1175-0013-000
4-1
4 Operating Instructions
Setting the dial
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WARNING High percent dial settings combined with low gas flows may lead to
hypoxic mixtures in the breathing circuit. atex-Ohmeda strongly
recommends the use of oxygen monitoring.
The dial release must be operated to turn the dial from the setting.
o not turn the dial if the vaporizer is not properly locked onto the
manifold.
Important
European Standard EN 740 - Anesthetic Workstations and Their Modules requires
that an appropriate gas monitor is used to monitor the concentration of anesthetic
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.
atex-Ohmeda strongly recommends the use of anesthesia gas monitoring with this
equipment. Refer to local standards for mandatory monitoring.
OFF

Tec 7 Vaporizer
4-2
1175-0013-000
Step 1
Press the dial release and turn the dial
in a counter-clockwise direction from
the setting.
Note that it is not possible to turn on
the vaporizer if an adjacent Tec series,
(except Tec 3) is turned on.
Step 2
The vaporizer should not be used
between and the first graduation
mark.
To avoid inadvertent delivery of small
concentrations, turn the control dial to
when the vaporizer is not in use.
Figure 4-1 • Releasing the dial
Åben
AB80020

4 Operating Instructions
1175-0013-000
4-3
Filling and draining the vaporizer
ww
ww
WARNING o not fill the vaporizer with any agent other than the agent specified on
the front label. The vaporizer is designed for that agent only. If any
substance other than that specified is used, patient injury could occur.
Only fill the vaporizer when it is in an upright position. Failure to do so
may result in the vaporizer being overfilled.
To avoid explosive hazards, flammable anesthetic agents such as Ether
and Cyclopropane must not be used in or with this vaporizer. Only
anesthetic agents that comply with the requirements for non-flammable
anesthetic agents in the IEC 60601-2-13 Standard,
Particular
Requirements for the Safety of Anesthesia Machines , are suitable for
use in the presence of this vaporizer.
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 using high frequency electric surgery
equipment may cause burns and is therefore not recommended in any
application of this vaporizer.
o not fill the vaporizer unless the control dial is in the position.
o not turn the dial ON during filling or attempt to fill beyond the ¥
mark.
o not drain the agent into any container other than a properly marked
drug container.
Ensure that the filler cap is tightened prior to use.

Tec 7 Vaporizer
4-4
1175-0013-000
When filling the Tec 7 Vaporizer, observe the following:
• Periodically check the agent level. The vaporizer should be refilled at appropriate
intervals. The vaporizer is designed to function according to specification as long
as there is agent visible above the mark.
• The vaporizer must be filled and used in an upright position. Small deviations
from the upright position do not affect either the output or the safety of the
vaporizer.
• Every two weeks, preferably when the agent level is low, drain the contents of the
vaporizer into an appropriately marked container and discard the agent. Less
frequent intervals may be used when the anesthetic agent does not contain
additives or stabilizing agents, but the procedure must be performed at least
once every year.
• The following steps should be taken for Halothane vaporizers:
— rain the vaporizer every two weeks
— If Halothane is used infrequently the vaporizer should be drained after use.
— The decomposition of halothane causes the release of halides, which may
corrode metal components particularly in the presence of moisture. Also a
preservative added to halothane by its manufacturers to impede
decomposition can leave a residue, which may cause vaporizer
components to stick.
• If the vaporizer is not upright, check the agent level more frequently to avoid a
misleading impression of the amount of agent in the vaporizer.
Step 1
Turn the vaporizer dial clockwise to the
position.
Figure 4-2 • Turning the vaporizer OFF
OFF
Åben
AB80021