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.
D-Tec Vaporizer
Contents 1.0 1.1 1.2 1.3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Operation And Maintenance Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . .
7.0 7.1 7.2 Principle Of Operation (Fig. 19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Alarm And Indicator Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Delivery Of Gas/Agent Vapor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8.0 Fault Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
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.
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.
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. Filler Assembly The filler assembly, illustrated on Fig.
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.
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.
3.3 Status Display The display panel lights and the auditory alarms operate as follows to indicate the operational status of the vaporizer: Note: If the dial is at the q setting when an alarm occurs, the auditory alarm is activated and the light indicating the alarm condition flashes. When the is pressed, the auditory alarm is muted and the light is continuously illuminated. Warm-Up The amber WARM-UP light is continuously illuminated when the vaporizer is in its warm-up mode.
Low Agent Level The amber LOW AGENT light flashes accompanied by a long tone operation of the auditory alarm which is a repetitive 1.5 seconds ON and 0.5 seconds OFF. The alarm indicates that there is less than 60 ml of agent remaining in the sump. Pressing the mutes the auditory alarm for a period of 120 seconds to allow time to fill the vaporizer to above 60 ml. If a LOW AGENT condition occurs during normal operation, the alarm is activated but the green OPERATIONAL light remains illuminated.
4.0 Vaporizer Preparation 4.1 Fitting The Battery And The Mains Lead w w w w w Caution: Do not support the vaporizer by holding the control dial and/or locking lever. Hold the main body of the vaporizer with both hands and keep the vaporizer in an upright position. Failure to do so may cause the vaporizer to malfunction. Caution: Only a Duracell 1604 or VARTA Energy 2000, 9 Volt battery must be installed in the vaporizer. If any other battery is installed, it may damage the vaporizer.
3. Remove the mains lead retaining plate illustrated on Fig. 11 and fit the Datex-Ohmeda mains lead firmly into the socket of the vaporizer. Feed the mains lead into the mains lead channel and then clip the mains lead retaining plate back into the base. 4. Feed the lead round the back of the vaporizer. AB.54.002 MAINS LEAD MAINS LEAD CHANNEL MAINS LEAD RETAINING PLATE Fig.
Fitting the equi-potential lead e.g. for intracardiac • Fit one end of the lead to the equi-potential stud on the D-Tec. • Route and connect the other end of the lead to a central ground stud, as described in the relevant anesthesia machine Operation and Maintenance Manual. w AB.54.005 ec D-T 5.0 Operating Instructions 5.1 Alarm And Display Test Warning: Only use vaporizers which are in a serviceable condition.
w Caution: If there are no LCD bars visible and the amber LOW AGENT light is illuminated after the alarm and display test is completed, there is less than 60 ml of agent in the sump and the vaporizer must be filled as described in Section 5.4. DESFLURANE 5. OPERATIONAL If there is sufficient agent in the sump, check that each light is extinguished, except the amber WARM-UP light which indicates that the vaporizer is in its warm-up condition.
5.3 w Turning The Dial To The Required Setting Warning: High % dial settings combined with low gas flows may lead to hypoxic mixtures within the breathing circuit. Datex-Ohmeda strongly recommends the use of oxygen monitoring. w Warning: The dial release must be operated to turn the dial from the q setting and also to increase the dial setting to above 12%.
5.4 Filling The Vaporizer 5.4.1 General w w Warning: Do not fill the vaporizer with any substance other than Suprane™ (desflurane). If any substance other than Suprane™ (desflurane) is used, patient injury could occur. Warning: When the vaporizer is in use, do not fill the vaporizer if the following conditions apply: • The dial setting is more than 8% at flows of 8 liters/minute or above. • The vaporizer is subjected to any high back pressure.
w Warning: Ensure that the bottle probe is fully engaged into the filler port before attempting to lift the bottle. If the bottle cannot easily be lifted, do not force it otherwise the valve may be broken. 3. When the probe cannot be inserted any further into the filler port, attempt to lift the bottle upwards. 4.
6.0 Maintenance All D-Tec Vaporizers require a full service at the recommended service interval. The vaporizer must be serviced at a Datex-Ohmeda Authorized Service Center. Refer to Section 11.0 Servicing Policy. 6.1 w w w w Cleaning Warning: Do not put any substance other than Suprane™ (desflurane) into the vaporizer sump. Warning: Do not immerse the vaporizer in water or any other liquid. Warning: Do not autoclave the vaporizer.
6.2 Changing The Battery The battery must be changed every 12 months irrespective of condition. w w 1. Turn the dial to q and disconnect the mains lead from the electrical supply. 2. Unscrew the battery cover securing screw and remove the battery cover from the base of the vaporizer. 3. Remove the battery from the vaporizer and disconnect the terminals. Dispose of the battery. Caution: Only a Duracell 1604 or VARTA Energy 2000, 9 Volt battery must be installed in the vaporizer.
7.0 Principle Of Operation (Fig. 19) 7.1 Alarm And Indicator Display 7.2 Page 18 August 2001 1. When the electrical supply is connected, each light and each LCD agent level display bar on the front display panel (17) flashes and the auditory alarm activates to indicate that the alarms are operational. After approximately two seconds, each light is extinguished, the LCD bars stop flashing and the auditory alarm is silenced. 2.
1 20 19 Gas/Agent Outlet 18 2 Fresh Gas Inlet Gas Inlet Pressure 3 4 5 Regulated Agent Pressure 6 DESFLURANE 7 Operational No Output Low Agent 8 Warm-Up 17 16 Alarm Battery Low 9 10 15 KEY 13 12 11 FRESH GAS GAS/AGENT VAPOR 14 ELECTRICAL CONNECTIONS KEY TO COMPONENTS 1 2 3 4 5 6 7 8 9 10 DIAL & ROTARY VALVE FIXED RESTRICTOR PRESSURE CONTROL TRANSDUCER PRESSURE MONITOR TRANSDUCER HEATER IN VAPOR CONTROL MANIFOLD VAPOR CONTROL MANIFOLD ASSEMBLY PRESSURE REGULATING VALVE SHUT-OFF VALVE S
8.0 Fault Diagnosis The following table details the alarm condition and the actions which must be performed to correct the alarm condition and the possible fault. If the vaporizer fails to function correctly after the appropriate action has been taken to rectify the fault, send the vaporizer to a Datex-Ohmeda Authorized Service Center for repair. Vaporizer Status The vaporizer dial release can be depressed, but the dial will not turn.
Alarm Indication DESFLURANE Action Fill the sump with Suprane™. OPERATIONAL NO OUTPUT LOW AGENT AA.43.041 WARM-UP Possible Fault Agent level < 60 ml. w Warning: If this condition persists until there is less than 20 ml of agent in the sump, the NO OUTPUT alarm is activated and the output ceases. ALARM BATTERY LOW DESFLURANE Change the battery within eight hours of alarm indication Alarm battery low. OPERATIONAL NO OUTPUT LOW AGENT AA.43.
9.0 Specification Note: All specifications are nominal and subject to change without notice. 9.1 w Calibration Warning: The D-Tec Vaporizer can only be calibrated at a Datex-Ohmeda Authorized Service Center. The D-Tec Vaporizer is calibrated at 760 mm Hg and at a nominal 21°C for the following concentrations (v/v %): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16 and 18, using O2 as the carrier gas flowing at 5 liters/minute. 9.2 Electrical Supplies Voltage Requirement: 100 to 120V a.c.
9.4 Classification Continuous rating, the vaporizer can be powered indefinitely unless a fault condition occurs. Type of protection against electric shock is Class 1. Accessible conductive parts of Class 1 equipment are connected to a protective earth in such a way that they do not become live in the event of a failure of the basic insulation. The rating label denotes the degree of protection against electric shock which is Type B. The vaporizer is not protected against ingress of liquids. 9.
9.7 Effects Of Output At Varied Altitudes The D-Tec Vaporizer has been calibrated in % v/v and the calibration is not affected by ambient pressure changes. The partial pressure of the delivered agent at any selected dial setting varies directly with the changes in ambient air pressure.
10.0 Warranty This product is sold by Datex-Ohmeda under the warranties set forth in the following paragraphs. Such warranties are extended only with respect to the purchase of this Product directly from DatexOhmeda or Datex-Ohmeda’s Authorized Dealers as new merchandise.
11.0 Servicing Policy w Warning: Only Technicians/Engineers trained and certificated by Datex-Ohmeda to repair and/or service the Datex-Ohmeda D-Tec Vaporizer should attempt to repair and/or service it and it must be repaired and/or serviced in accordance with written instructions provided by Datex-Ohmeda. Repairs and service procedures must be performed at a Datex-Ohmeda Authorized Service Center.
Index A E Accuracy 22 Agent Level Display 7 Agent Level Sensor Description 5 Alarm And Display Test 11 Alarm Battery Low 8, 21 Altitudes Effects Of Output 24 Ambient Temperature Effects Of 24 Auditory And Visual Indicators Description 6 Electrical Supplies Current Input 22 Power Consumption 22 Voltage Requirement 22 Equi-Potential Stud Description 5 B Back Pressure Effects Of 24 Battery 17, 22 Changing 17 Disposal 17 Fitting 9 Bottle Suprane™ (desflurane) 14 C Fault Diagnosis 20 Action 20, 21 Alarm In
Index S N No Output 8, 20 O O & M Manual Of Anaesthesia Machine 12 Operating Instructions 11 Filling The Vaporizer 14 Preoperative Checkout 12 Turning The Dial 13 Operational 7 P Performance 22 Power Consumption 22 Power Supply Connector And Battery Description 4 Power Supply Unit Description 4 Precautions Warnings And Cautions 1 Preoperative Checkout 12 Principle Of Operation 18 Alarm And Indicator Display 18 Delivery Of Gas/Agent Vapor 18 R Range Calibrated Flow 22 Concentration 22 Recommendations IE
Corporate Office Datex-Ohmeda Division Instrumentarium Corp. PO Box 900 FIN-00031 Helsinki Finland Tel 358 10 394 11 Fax 358 9 146 3310 North America United States Customer Service, Technical Support and Distribution Center Datex-Ohmeda, Inc. PO Box 7550 Madison, WI 53707-7550, USA Tel 1 800 345 2700 Fax 1 608 221 4384 Equipment Service Center Datex-Ohmeda, Inc. 1315 West Century Drive Louisville, CO 80027-9560, USA Tel 1 800 345 2700 Fax 1 303 673 1607 Canada Datex-Ohmeda (Canada) Inc.
