Operators Manual
Contents
1. EEE Biomedical DPM1B Pneumatic Transducer Tester Operators Manual PN 2572314 March 2006 2006 Fluke Corporation All rights reserved Printed in USA All product names are trademarks of their respective companies Warranty and Product Support Fluke Biomedical warrants this instrument against defects in materials and workmanship for one full year from the date of original purchase During the warranty period we will repair or at our option replace at no charge a product that proves to be defective provided you return the product shipping prepaid to Fluke Biomedical This warranty does not apply if the product has been damaged by accident or misuse or as the result of service or modification by other than Fluke Biomedical INNO EVENT SHALL FLUKE BIOMEDICAL BE LIABLE FOR CONSEQUENTIAL DAMAGES Only serialized products and their accessory items those products and items bearing a distinct serial number tag are covered under this one year warranty PHYSICAL DAMAGE CAUSED BY MISUSE OR PHYSICAL ABUSE IS NOT COVERED UNDER THE WARRANTY Items such as cables and non serialized modules are not covered under this warranty Recalibration of instruments is not covered under the warranty This warranty gives you specific legal rights and you may also have other rights which vary from state to state province to province or country to coun try This warranty is limited to repairing the instrument to Fluke Biomedical s specificati2. are low Note When the Tester is first powered ON the display may take a few seconds to settle to zero Back Panel The back panel of the Tester houses the storage compartment for the 9V alkaline battery Pneumatic Transducer Tester Accessories Accessories Table 1 Accessories Accessory Fluke Part DPM1B Operators Manual 2572314 Acrodisc Filter 2212678 4 way stopcock 2242666 FUUWKE DPMB FNMA ester H Biomedical LCD mmHg ON OFF Switch ZERO ON ZERO Knob Da A CAUTION DO NOT CONNECT DIRECTLY OFF TO STERILE ENVIRONMENT UNLESS FILTER IS USED INPUT VACUUM Luer Lock PRESSURE Connection Site Thumbwheel ehf1 eps Figure 1 DPM1B Front Panel Operation Overview When operating according to the instructions given in this section the Tester produces and displays a pressure for comparison to the displayed pressure on the monitor the blood pressure transducer under test is connected to A conversion table is found in Multiplication Factor section that quickly provides the multiplication factors to compare various units of measure DPM1B Operators Manual Operating the DPM1B Occasionally a blood pressure transducer under test may not have the sensitivity specified by the manufacturer of the monitor the transducer under test is connected to By matching gain adjustments on the monitor deviations in sensitivity can usually be compensa
3. cal damage such as bent or broken parts dents or scratches Technical Support For application support or answers to technical questions either email techservices flukebiomedical com or call 1 800 648 7952 or 1 425 446 6945 Claims Our routine method of shipment is via common carrier FOB origin Upon delivery if physical damage is found retain all packing materials in their original condition and contact the carrier immediately to file a claim If the instrument is delivered in good physical condition but does not operate within specifications or if there are any other problems not caused by shipping damage please contact Fluke Biomedical or your local sales representative Standard Terms and Conditions Refunds and Credits Please note that only serialized products and their accessory items i e products and items bearing a distinct serial number tag are eligible for partial refund and or credit Nonserialized parts and accessory items e g cables carrying cases auxiliary modules etc are not eligible for return or refund Only products returned within 90 days from the date of original purchase are eligible for refund credit In order to receive a partial refund credit of a product purchase price on a serialized product the product must not have been damaged by the customer or by the carrier chosen by the customer to return the goods and the product must be returned complete meaning with all manuals cables accessories e
4. 04 F St r g sir needle eee AKESE 20 to 60 C 4 to 140 F Overpressure i n eeii eeir eesen tenn een nenene Not to exceed 1000 mmHg Voltage Requirements cceeeeeseeeeeee One 9 V alkaline battery Battery Life 0cccccecce ee eeeeeeeeseeeeeteeeeeeaeeees 60 hours continuous use DPM1B Operators Manual DiS Play isniectsv ces ccessncnieescchesasanciveonesaseonatsccea nes 0 5 1 3 cm LCD with LO BAT indicator DIMENSIONS inrcis eiie k 5 8 x3 6 x 1 5 14 6 cm x 15 9 cm x 3 8 cm WeiIgNl 0 cee cece cetee ee ceeeeeeeaeeeeeeeeteeaeeeteeeeeeas 10 oz 260 g Tester Familiarization The Tester incorporates a highly accurate digital pressure meter and pneumatic pressure generating cylinder into a small hand held package for determining the accuracy of most blood pressure measurement systems Front Panel The Tester incorporates a specially designed pressure cylinder and precise solid state transducer for generating and measuring static pressure from 300 to 300 mmHg The following items are identified in Fgure 1 e ON OFF Switch Used to power the Tester e Thumbwheel Used to regulate the pressure and pressure value displayed on the LCD e Luer Lock Built in to provide the external connection for stopcocks or pressure fittings e ZERO Knob Adjusts LCD reading to zero e Liquid Crystal Display LCD Illuminated when the Tester is powered Displays LO BAT when batteries
5. cal equipment Follow the manufacturer s electrical safety guidelines for equipment attached to the Tester A Caution To avoid possible damage to the Tester e Do not connect Tester to a sterile environment unless a new sterile filter is used e Do not allow any liquid into the pressure port of the transducer Use the provided filter between the Tester and liquid Manual Objectives e Information about the design of the the Tester to enable the user to understand its use e Detailed guidance for maintaining and storing the unit e Procedures for setting up and operating the Tester DPM1B Operators Manual Summary of Features The Tester is a hand held pressure measuring device designed as an aid in the performance testing and troubleshooting of pneumatic or hydraulic systems A liquid crystal display LCD reading indicates pressures manually generated from an internal chamber Testing blood pressure transducers is easy Simply connect a BP transducer to the luer lock fitting on the Tester and create any series of pressures between 300 mmHg Pressures can then be compared directly between the Tester and the manometer or monitors under test The Tester has the following features e Fasy to read liquid crystal display LCD e Capable of measuring and generating positive and negative pressures e Lightweight and portable e Operates with air or liquid e An easily accessible knob for zeroing the unit e LO BAT display
6. curacy of the measurement system Note If the system appears to be losing pressure carefully check all fittings and connections Pneumatic Transducer Tester Operation Overview DPM 1B mmHg Filter ZERO CAUTION DO NOT CONNECT DIRECTLY TO STERILE ENVIRONMENT UNLESS FILTER IS USED j INPUT VACL Test Transducer PRESSURE Vent Port ehf3 eps Figure 3 DPM1B Vented to Atmosphere To interpret the results proceed to the following three sections e Testing Transducer Linearity e Transducer Sensitivity Test e Testing Other Devices DPM1B Operators Manual DPM 1B Aa mmHg Filter ZERO a ese CAUTION DO NOT CONNECT DIRECTLY TO STERILE ENVIRONMENT UNLESS FILTER IS USED i j INPUT VACL PRESSURE i Test Transducer Vent Port ehf4 eps Figure 4 DPM1B Configured to Apply Pressure to Transducer Testing Transducer Linearity Several measurements are required to determine if a transducer is linear over a range of pressure See Figure 5 for a sample plot of transducer linearity determined by using the Tester Pneumatic Transducer Tester l 10 Test the transducer for linear operation in the range of 20 to 190 mmHg for example by taking measuremen
7. der Replace with one 9 volt alkaline battery 13 DPM1B Operators Manual 14
8. e nonabrasive material around all projecting parts Use at least four inches of tightly packed industry approved shock absorbent material around the instrument Returns for partial refund credit Every product returned for refund credit must be accompanied by a Return Material Authoriza tion RMA number obtained from our Order Entry Group at 1 800 648 7952 or 1 425 446 6945 Repair and calibration To find the nearest service center goto www flukebiomedical com service or In the U S A Cleveland Calibration Lab Tel 1 800 850 4606 Email globalcal flukebiomedical com Everett Calibration Lab Tel 1 800 850 4606 Email service status fluke com In Europe Middle East and Africa Eindhoven Calibration Lab Tel 3 1 402 675300 Email ServiceDesk fluke com In Asia Everett Calibration Lab Tel 425 446 6945 Email service international fluke com Certification This instrument was thoroughly tested and inspected It was found to meet Fluke Biomedical s manufacturing specifications when it was shipped from the factory Calibration measurements are traceable to the National Institute of Standards and Technology NIST Devices for which there are no NIST calibration standards are measured against in house performance standards us ing accepted test procedures WARNING Unauthorized user modifications or application beyond the published specifications may result in electrical shock hazards or improper operati
9. earity Transducer Sensitivity Test Testing Other Devices Multiplication Factors Maintenance Cleaning Outside Surfaces e sseseesssseeeseeeeierereressrersrrrsrrrrrrrrererereee Battery Replacement iic c ccasscivssiascasesccscdsccecssiscvasseesseasscscssveecat oaeeneasd List of Tables Table Title Page 1 ACCESSOTICS 00 eeeceescesecsescesceceeccesecceeeeesecevereesscaceaeeeees 2 Multiplication Factors c ccccccsssessescssscsesseseseseeeeesscsesees List of Figures Figure Title 1 DPMIB Front Panel cicsccicsicsssteacheesantacscvsseteeteaaaianeeenecaece 2 DPMIB to Monitor Setup eeceseeseeeeceeeeneeereeeeeee 3 DPMIB Vented to Atmosphere ccceecceeseeereeneeees 4 DPMIB Configured to Apply Pressure to Transducer 5 Sample Plot of Transducer Linearity Using the DPM1B DPM1B Pneumatic Transducer Tester Introduction This document is the Operators manual for the DPM1B Pneumatic Transducer Tester hereafter the Tester It contains general information about the Tester a description of its components and instructions or documentation required to service the unit If a problem develops the user should contact Fluke Biomedical The user should never attempt to service the unit before consulting with Fluke Biomedical service personnel Safety The Tester draws only 7 mA of current during operation however it is often connected to electri
10. ed on the LCD when the battery is low The batteries can be accessed and replaced externally Applications Many hospital and laboratory instruments measure pressure for diagnostic purposes Mercury and water manometers sphygmomanometers and blood pressure monitors are some of these devices Maintenance and calibration of these instruments requires a device capable of both generating and measuring pressure The Tester was designed to fit this requirement particularly in the area of blood pressure transducers The Tester was designed to improve and simplify the measurements necessary for determining the accuracy of any direct blood pressure monitoring system Vacuum negative and positive pressures from 300 to 300 mmHg can be generated within the Tester and applied to a system under test The pressure delivered by the pneumatic transducer tester is indicated on a liquid crystal dis play for quick comparison to the monitor The accuracy of mercury or water manometers can be verified with the Tester Pressures can be applied simultaneously to the manometer to be tested and the 2 Pneumatic Transducer Tester Specifications Tester using a Y connector Pressure is applied to the system as normal usually with a squeeze bulb The results can be compared between the Tester and the manometer under test Testing Capabilities Verifying the proper operation of a blood pressure transducer can be a tedious and time consuming task Usually a me
11. ge calculated in Step 3 the transducer is within the manufacturer s specifications 200 Linear Plot 150 DPM 1B Readings mmHg 100 50 Nonlinear Plot 50 100 150 200 Monitor Readings mmHg ehf5 eps Figure 5 Sample Plot of Transducer Linearity Using the DPM1B 11 DPM1B Operators Manual Testing Other Devices A variety of pressure measuring and pressure generating devices can be tested using the Tester The Tester can be used as a pressure standard to easily test water manometers mercury manometers and sphygmomanometers Set up the system as described in the section titled Pressure Measurement Substitute the system to be tested for the transducer Use the Tester to measure pressure only The Tester is not designed to generate the high pressures required by some of these instruments Multiplication Factors Table 2 Multiplication Factors p PSI inHg inH20 mmHg mm H20 Ib in 0 C 20 C 0 C 4 C PSI 0 49118 3 6062 1 9337 1 4223 Ib in x10 2 x10 2 x10 3 in in Hg 2 0359 7 3419 3 9368 2 8959 x10 2 x10 2 x10 3 0 C 0 53622 12 Pneumatic Transducer Tester Maintenance Maintenance Cleaning Outside Surfaces The DPM1B outside surfaces can be cleaned with a cloth dampened with water and mild detergent or alcohol Battery Replacement The battery compartment of the Tester is found in the rear panel of the tester Slide the compartment cover to expose the battery hol
12. o that the syringe can be used to fill the system with liquids Turn the valve on the stopcock so that the two opposing end arrows point straight up and down and the middle arrow points toward the Tester as depicted in Figure 2 6 After filling the system position both Stopcocks as shown in Figure 2 7 Remove syringe from top part of Stopcock 2 Proceed to the section labeled Zeroing the Monitor Zeroing the Monitor and Tester Properly zeroing the measurement system is important to accurately determine transducer sensitivity 1 Position the valve on Stopcock 1 as shown in Figure 4 2 Press the ZERO or BALANCE control on the monitor 3 Turn the Tester ON using the ON OFF switch on the front panel DPM1B Operators Manual Note Allow approximately 3 minutes warm up time before taking readings this allows the electronics to stabilize in the Tester 4 Zero the Tester by turning the ZERO knob on the front panel of the Tester See Figure 1 for location of ZERO knob When the monitor has zeroed reposition the valve of the stopcock as shown in Figure 3 Pressure Measurement Position the stopcock as shown in Figure 4 Move the thumbwheel of the Tester to change the static pressure generated See Figure 1 for location of thumbwheel The thumbwheel is rotated down for positive pressure or up for vacuum pressures Observe the LCD Compare the LCD reading on the Tester to the monitor reading to determine the ac
13. on Fluke Biomedical will not be responsible for any injuries sustained due to unauthorized equipment modifications Restrictions and Liabilities Information in this document is subject to change and does not represent a commitment by Fluke Biomedical Changes made to the information in this document will be incorpo rated in new editions of the publication No responsibility is assumed by Fluke Biomedi cal for the use or reliability of software or equipment that is not supplied by Fluke Bio medical or by its affiliated dealers Manufacturing Location The DPM1B Pneumatic Pressure Transducer is manufactured in Everett WA U S A Table of Contents Title Page LEENE GU CHOW UA APEE E E skidevss dasdaaveeeagelscredsyanse SEn A A E T A Manual Objectives essessssessesseseseesseseeesssssesesstseesesseseesesseseenesesseeees Summary of Features Applications ecceeccecesecseesseesecesecseeeseeseceaecseeeeeesecaeenseeseenseseaeenee Testing Capabilities 00 0 cccecceeseescesecseecseeeceseceecseeseceaeeeeeseeeeeeaee Specifications Tester Familiarization ict ciictc ccssnersencceesnsecatedstetsseus cousnesssveteusnedscveteneete Front Panel s s cssccetsescswessssssvessusssousstossses Siae aaea rods E ANEA rE edre ii Back Panel ACCOSSOTICS E E E E E E Operation OVervieW amenn nieie i e a daa Operating the DPM1B SEUD enen an RS Zeroing the Monitor and Tester Pressure Measurement Testing Transducer Lin
14. ons Warranty Disclaimer Should you elect to have your instrument serviced and or calibrated by some one other than Fluke Biomedical please be advised that the original warranty covering your product becomes void when the tamper resistant Quality Seal is removed or broken without proper factory authorization We strongly recom mend therefore that you send your instrument to Fluke Biomedical for factory service and calibration especially during the original warranty period Notices All Rights Reserved Copyright 2006 Fluke Biomedical No part of this publication may be reproduced transmit ted transcribed stored in a retrieval system or translated into any language without the written permission of Fluke Biomedical Copyright Release Fluke Biomedical agrees to a limited copyright release that allows you to reproduce manuals and other printed materials for use in service training programs and other technical publications If you would like other reproductions or distributions submit a written request to Fluke Biomedical Unpacking and Inspection Follow standard receiving practices upon receipt of the instrument Check the shipping carton for damage If damage is found stop unpacking the instrument Notify the carrier and ask for an agent to be present while the instrument is unpacked There are no special unpacking instructions but be careful not to damage the instrument when unpacking it Inspect the instrument for physi
15. rcury or water manometer is used to generate known values of pressure while the transducer s response is monitored A malfunctioning transducer shows up when comparing the output of the manometer versus the output of the transducer Unfortunately manometers can add significant errors themselves because of the difficulty in interpreting the liquid level in the column This affects the calibration of and subsequent determination of the liquid height The critical nature of invasive blood pressure measurement requires a properly calibrated monitoring system capable of linear operation over a wide range of pressure levels Pressures at the catheter tip should be accurately transmitted through the connective tubing and stopcocks to the transducer sensing diaphragm In a properly operating system distention of the diaphragm will generate an output voltage proportional to the applied pressure Occasionally one or more of the elements involved in this process will malfunction causing inaccurate indications of blood pressure on the monitor Very often these errors can be attributed to a transducer with a nonlinear response or shifted sensitivity Specifications Pressure Measurement Range 00006 300 mmHg Pressure Generation Range cceee 300 mmHg PA CCULACY T AEE AE E E T 1 of reading or 1 mmHg Whichever is greater Temperature Performance Operating eenen eerren neern neern rennene 10 to 40 C 50 to 1
16. tc and in as new and re salable condition Products not returned within 90 days of purchase or products which are not in as new and resalable condition are not eligible for credit return and will be returned to the cus tomer The Return Procedure see below must be followed to assure prompt refund credit Restocking Charges Products returned within 30 days of original purchase are subject to a minimum restock ing fee of 15 Products returned in excess of 30 days after purchase but prior to 90 days are subject to a minimum restocking fee of 20 Additional charges for damage and or missing parts and accessories will be applied to all returns Return Procedure All items being returned including all warranty claim shipments must be sent freight prepaid to our factory location When you return an instrument to Fluke Biomedical we recommend using United Parcel Service Federal Express or Air Parcel Post We also recommend that you insure your shipment for its actual replacement cost Fluke Biomedical will not be responsible for lost shipments or instruments that are received in damaged condition due to improper packaging or handling Use the original carton and packaging material for shipment If they are not available we rec ommend the following guide for repackaging Use a double walled carton of sufficient strength for the weight being shipped z Use heavy paper or cardboard to protect all instrument surfaces Us
17. ted for A transducer that is not performing as specified however could have other problems and sensitivity measurements can be an early indication of performance deterioration Setup 1 Connect the Tester transducer monitor and 2 stopcocks as shown in Figure 2 Note The stopcock connecting the Tester to the transducer is used to vent the system to the atmosphere The other stopcock is used to fill the transducer dome with liquid 2 Ensure that the testing medium is homogeneous before beginning any test The transducer testing can be accomplished using either an air or liquid fill system Note Do not mix air and liquid in any part of the system inaccurate readings could result ACaution To avoid damage to the Tester do not allow any liquid into the pressure port of the transducer Use the filter provided between the liquid and the Tester ACaution Do not connect the Tester to a sterile environment unless a new sterile filter is used Pneumatic Transducer Tester Operation Overview Monitor SS 7 Pneumatic Transducer 140 Tester Filter BP Input 140 Tl l ae C40 ehf2 eps Figure 2 DPM1B to Monitor Setup 3 When the system is to be filled with liquid position Stopcock 1 as shown in Figure 2 4 Attach a liquid filled syringe to the top port of Stopcock 2 5 Position the valve on Stopcock 2 s
18. ts in increments of 10 mmHg from 20 mmHg to 190 mmHg as depicted in Figure 5 Plot the resulting pressures by placing the Tester readings in one axis and the monitor readings in the other axis Draw a line through the plotted points A straight line indicates that the transducer operates linearly a curved line indicates that the transducer operates nonlinearly Compare the actual pressure measurements with the transducer manufacturer s specifications for linear operation Pneumatic Transducer Tester Transducer Sensitivity Test Transducer Sensitivity Test Only one measurement is required to determine whether or not a transducer under test meets the manufacturer s specified sensitivity The Tester is used to generate a known pressure generally 100 mmHg or higher works best The excitation voltage of the transducer is determined from the manufacturer s specifications Transducer sensitivity is calculated as follows 1 Apply 100 mmHg to the transducer as indicated by the Tester LCD reading 2 Record the pressure registered on the pressure monitor 3 Calculate the minimum and maximum pressure readings by using the transducer s sensitivity tolerance specifications For example For a 100 mmHg applied pressure with a 1 tolerance the minimum and maximum readings are 99 mmHg and 101 mmHg respectively 4 Compare the readings from Step 2 along with the results from Step 3 If the readings from Step 2 are within the ran
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