REF 424593 ® Diagnostics Innovative Solutions for a Healthier World QBC Autoread Plus ® TM Centrifugal Hematology System Operator’s/Service Manual For technical assistance in the United States, call: 1-866-265-1486 QBC, Autoread, Autoread Plus, and AccuTube are trademarks of QBC Diagnostics Inc., © 2006 QBC Diagnostics. Vacutainer is a trademark of Becton Dickson, Inc. QBC Diagnostics Inc. 168 Bradford Drive Port Matilda, PA 16870 U.S.A.
Contents Section 1 — INTRODUCTION 1.1 1.2 1.3 1.4 INTENDED USE................................................................................................. SUMMARY OF TEST......................................................................................... PRINCIPLES OF THE PROCEDURE................................................................. WARNINGS AND PRECAUTIONS..................................................................... 1-1 1-1 1-2 1-2 Section 2 — INSTALLATION PROCEDURES 2.
Contents (continued) Section 4 — OPERATING PROCEDURES 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 STARTING ANALYZER...................................................................................... 4.1.1 Power-On Self-Check............................................................................ 4.1.2 Mode Selection...................................................................................... 4.1.3 Pre-Test Performance Check..................................
Contents (continued) Section 7 — SYSTEM PERFORMANCE 7.1 7.2 7.3 7.4 TEST RESULTS............................................................................................... 7.1.1 Digit-Decimal Format........................................................................ 7.1.2 Operating Ranges............................................................................. TEST LIMITATIONS......................................................................................... EXPECTED VALUES..
Contents (continued) APPENDIX B — SERVICE, MAINTENANCE AND SPECIFICATIONS B.1 INTRODUCTION.............................................................................................. B.2 SERVICE AND MAINTENANCE....................................................................... B.2.1 Autoread Plus Analyzer..................................................................... B.2.2 Power Pack....................................................................................... B.2.
Section 1 Introduction 1.1 INTENDED USE The QBC® Autoread Plus™ System (Figure 1-1) provides a 9-parameter hematology profile of centrifuged venous or capillary blood.
Section 1 Introduction 1.3 PRINCIPLES OF THE PROCEDURE QBC hematology tests utilize precision-bore glass tubes pre-coated with potassium oxalate, acridine orange fluorochrome stain,7 and an agglutinating agent. QBC tubes made specifically for capillary blood (finger-stick samples) additionally contain a coating of anti-coagulants. During high-speed centrifugation of the blood-filled tube, the cells form in packed layers around the float, which has descended into the buffy coat (Figure 1-3).
Section 2 Installation Procedures 2.1 INSTALLATION SERVICE The Autoread Plus System will normally be installed by a QBC Diagnostics Inc. representative. If necessary, contact your distributor or the nearest office of QBC Diagnostics Inc. to arrange for installation service. 2.2 AUTOREAD PLUS SYSTEM COMPONENTS System Part No. Analyzer Part No. Power Pack Part No. QBC Capillary Centrifuge Part No.
2.3 SETUP PROCEDURES (continued) 2.3.2 Electrical Connections • Analyzer-to-Power Pack Referring to Figure 2-2, insert the 8-pin plug of the power pack into the POWER PACK CONNECTOR in the back of the Autoread Plus analyzer. POWER PACK Figure 2-2. Power Connection Diagram Before plugging the line cord of the power pack into an electrical receptacle, see the electrical requirements specified on the data plate and in Section 2.3.4.
2.3 SETUP PROCEDURES (continued) 2.3.4 Power Requirements Plug the power cords of the power pack and centrifuge into the grounded electrical receptacles rated for the line voltage and frequency specified on their respective data plates. For centrifuge voltage tolerances, consult the operator’s manual of the QBC Capillary Centrifuge supplied with the System. CAUTION Connect the power cord only to a 3-wire grounded receptacle delivering the voltage and frequency specified on the data plate of the power pack.
2.4 INITIAL ADJUSTMENTS TO ANALYZER CONTRAST ADJUSTMENT FOR TEST DISPLAYS 2.4.1 Display Contrast Turn power on and test the calibration check rod (see Section 2.6). Check for readability of the displays while room light is at its normal working level. If necessary, turn the upper CONTRAST adjustment (Figure 2-5) with the accessory screwdriver; clockwise darker, counterclockwise lighter. CONTRAST ADJUSTMENT FOR MESSAGE DISPLAY Figure 2-5.
2.4 I NITIAL ADJUSTMENTS TO ANALYZER (continued) MESSAGES 9 August 1996 10:51 2.4.3 Setting Calendar Clock OR MESSAGES The Autoread Plus analyzer incorporates a battery-powered electronic clock that records the date and time on each printed test report. Whenever the Power switch is turned on, the analyzer is automatically sequenced through the start-up program described in Section 4.1.
2.4 I NITIAL ADJUSTMENTS TO ANALYZER (continued) 2.4.4 Setting Printout Format CAUTION Be sure printer is approved for use and compatible with analyzer before connection to instrument. When the QBC Autoread Plus analyzer is equipped with software that incorporates the Hematology Diagnostic Reminder or HDR program, the test printout format can be pre-selected from a menu of print options.
2.5 Setting Baud Rate The analyzer is prepared for computer interfacing by first setting the baud or data transmission rate via the SET BAUD RATE option function. (See OPTIONS FUNCTIONS in Section 4.6.) Once this latter function has been entered, baud rates of 1200, 2400, 9600, 38,400, and 115,000 are selectable. PACKAGE INSERT 2.6 CALIBRATION CHECK ROD 2.6.1 Description A calibration check rod is supplied with the system for daily performance verification of the Autoread Plus analyzer.
2.6.2 Use (continued) As shown in Figure 2-9, a slot located directly behind the loading platform of the instrument is provided for storage of the calibration check rod. STORAGE SLOT FOR CAL CHECK ROD Figure 2-9.
Section 3 Principles of Operation 3.1 AUTOREAD PLUS ANALYZER 3.1.1 General Description The QBC Autoread Plus analyzer is a slim, compact instrument housed in a sturdy 4-piece enclosure (Figure 3-1). Figure 3-2 shows the input/output connectors and controls located on the back of the instrument. The analyzer has no voltage- or frequency-dependent circuitry and operates on direct current voltages supplied from a separate power pack.
3.1.2 Display Panel Readouts and controls on the display panel (Figure 3-4) are as follows: •POWER light: Green LED, illuminated when rear POWER switch is On. • Eight 3-digit windows with reflective type LCDs and fixed decimals. • Upper CONTRAST adjustment for test readouts. • MESSAGES display: two 16-character lines for alphanumeric messages. • Lower CONTRAST adjustment for the readout.
3.1.3 Function Keys and Modes (continued) CBC MODE Insert QBC Tube There are four main operating modes, three of which are for testing; and the fourth, for selecting options (see displays opposite). MODE CAL CHECK MODE Insert Cal Rod Once programmed to a test mode, the instrument automatically determines the correct algorithms and processing routines from the optical characteristics (signature) of the inserted tube.
3.1.4 Transport Mechanism (continued) Inserting a QBC tube and closing the platform door initiates the following start sequence: • An optical sensor detects that the tube is inserted, thereby activating a switch. • As the door is shut, an actuating bar on the underside of the door closes a mechanical switch to enable the transport start sequence. • A motor moves the transport carriage with collet to clamp the unsealed end of the tube firmly in position.
3.1.5 Optics (continued) SILICON DETECTOR The red light source is a 610 nm LED and is used primarily for scanning the red cell layers in the blood tube and for detecting tube characteristics, i.e., closure type, tube type, fill volume, float length, etc. A slit mask controls the area of illumination of the tube. The blue light source is a miniature tungsten lamp for fluorescence scanning of the buffy coat. An interference filter is used for blocking all light of a wavelength of 490 nm or longer.
Section 1 Introduction 3.1.7 Data Acquisition Test data is read via a 12-bit analog-to-digital converter. A typical tube assay consists of the following: a. Forward and reverse transmittance and fluorescence scans of entire tube to determine tube type, float length, fill volume, etc. b. One fluorescence scan of float region in forward direction, with red filter in place. L6 c. One fluorescence scan of float region in reverse direction, with green filter in place. d.
3.1.8 HDR Analysis Report* The microprocessor, via the cartridge memory bank, contains an extensive database of medical diagnoses against which each nine-parameter test result is analyzed. The test printout will include a hematology diagnostic reminder or HDR report on general and specific clinical aspects relating to any abnormal values. Wintrobe’s Clinical Hematology, 8th edition,1 is referenced throughout the printed HDR report. See the Caution note opposite on proper utilization of HDR report.
3.4 PRINTER For U.S. customers, a printer is supplied with the Autoread Plus System. For international customers, a printer with the correct voltage rating must be procured locally. (Note: For additional information on working with USB printers, consult the included insert labeled “IMPORTANT INFORMATION”.) Detailed directions on unpacking, set up, and operation of the printer are provided in the manufacturer’s manual supplied with the unit. 3.
Section 4 Operating Procedures 4.1 STARTING ANALYZER 4.1.1 Power-On Self-Check Actuating the POWER switch on the back of the analyzer causes the instrument to test its internal electronics, optics, and mechanical systems, including the segmented LCD displays. NOTE: Before turning power on, be sure the loading platform is empty (tube removed) and the platform door is closed. If the door is left open, the self-check sequence will stop, and a display message to close the door will appear.
4.1.2 Mode Selection Upon completing the startup sequence, the Autoread Plus analyzer defaults or autoprograms to the hematology testing mode, i.e., CBC MODE (see Figure 4-2). Depending on the desired operation, press the [MODE] key to access any one of the following modes: • CBC MODE Insert QBC Tube • CAL CHECK MODE Insert Calibration Rod • CONTROL MODE (for hematology control) Insert QBC Tube • OPTIONS MODE Select [5] [6] (to Set Date and Time, Set Print Format, Cartridge Type, and Set Baud Rate) 4.1.
4.2.1 Selecting Patient’s Normal Range For a printout of test results superimposed on a pictogram of the normal hematology range of the patient, program the applicable normal range into the analyzer before running each test as described below.
4.2.2 Starting An Assay (continued) MESSAGES CBC MODE Insert QBC Tube As shown in the message sequence opposite, current status of the assay is maintained on the display until test values appear. MESSAGES CBC Mode Close Door IMPORTANT: Once a test is started, do not open the loading platform door until the test is completed and results are displayed. Opening the door while an assay is in progress will cause the test to abort.
4.2.3 Hematology Printouts (continued) The example in Figure 4-5 shows test results printed numerically and in bar graph form on the normal range programmed as described in paragraph 4.2.1. On all test result printouts, spaces are provided for recording the patient’s name, date of birth, and accession or ID number. Note: In the pediatric test shown, because of a high (or low) absolute count of one or both of the WBC differentials, the printout will include the caution statement at the bottom of Figure 4-5.
4.3 TEST ALERTS 4.3.1 Flashing Values and Dashes When a test value flashes on and off on the display panel, an asterisk (*) will appear on the printout after the numerical value. Flashing values indicate that the result is outside the validated test range of the parameter. (See Table 4-1). Dashes on the panel and on the printout mean that the computed test value is outside the display range of the instrument, or that a packed cell layer is too small to measure.
4.4 ERROR MESSAGES When the analyzer detects an error or irregular condition, a message or code is displayed to identify the problem. A list of error messages is provided in Table 4-3. The error messages are categorized by the mode or operating sequence in which they can occur. Corrective action is in some cases obvious (i.e., wrong tube was inserted); for others, service must be requested to repair a failed component; still others (e.g., during scanning) require a more detailed analysis. 4.
4.5.2 QBC Controls QBC Hematology Control (p/n 424304) is available for performance monitoring of the Autoread Plus system. The control kit is shipped at regular intervals and contains two levels of control material, along with instructions for preparing and testing control tubes and an assay sheet showing expected results. Good laboratory practice suggests that controls be run to assist in monitoring the performance of the total test system.
4.5.3 QBC Proficiency Tests CAUTION Check the instructions accompanying the survey samples to determine which Autoread Plus analyzer mode should be used for testing them. Follow the data entry instructions provided by the proficiency service. Be sure to enter the correct tube type and analyzer type in the appropriate places. Proficiency testing is an external evaluation of the quality of a laboratory’s performance.
4.6 OPTION FUNCTIONS The OPTIONS MODE is accessed by means of the [MODE] key. Use the [5] or [6] key to scroll through the menu of options shown opposite. The first three functions are described earlier in Section 2.4.2-2.4.4 of this manual. The CARTRIDGE TYPE function may be needed in connection with service problems.
*For trouble shooting purposes refer to the print a diagnostic scan for technical services to interpret. DURING STARTUP AND SELF-TEST Table 4-3 Error Messages and Codes DURING CALIBRATION CHECK DURING HEMATOLOGY TESTS* ERROR MESSAGE Lamp Test Failed CAUSE AND ACTION • Cause: Display message will flash if software determines the Lamp is either open or shorted. Action: Request service. Checksum Error 1 • Cause: Defective cartridge.
DURING STARTUP AND SELF-TEST Table 4-3 (continued) Error Messages and Codes DURING CALIBRATION CHECK DURING HEMATOLOGY TESTS* ERROR MESSAGE CAUSE AND ACTION *Error Locating Meniscus • Cause: Improper tube inserted, defective lamp, or binding carriage. Action: Remove tube and inspect. Retest or prepare and test new tube. If message persists, request service.
QBC Diagnostics Systems Technical Bulletin ® Date Issued: Product: January 2006 QBC AUTOREAD™ (Model #424576) QBC AUTOREAD PLUS™ (Model #429576) Subject: Printing Diagnostic Scans (Troubleshooting Tool Only) Diagnostic Scan printouts are used as a troubleshooting tool by the QBC Diagnostics® Technical Services Department. Blood samples from Patients, QBC Controls & Proficiency Test material can be evaluated, for troubleshooting purposes only, using this diagnostic procedure.
4.9 QBC PIPETTER The QBC pipetter (Figure 4-9) is a fixed-volume device, designed to aspirate 111.1 µL of blood to fill standard QBC venous tubes. An AccuTube spacer is used to adjust the fill volume to 70 µL when using QBC AccuTubes. The QBC pipetter incorporates a movable barrel as shown in Figure 4-10. The barrel is opened by twisting it forward. When opened, the pipetter accepts the stoppered end of an AccuTube, or the open end of a standard QBC venous tube.
4.10 PRECAUTIONS AND HAZARDS ELECTRICAL SAFETY • Power Connections: Plug the cordsets of the power pack, centrifuge, and printer only into AC receptacles rated at the voltage and frequency specified on the data plates. • Grounding: Never remove the grounding prong from the cordset plugs of the power pack, centrifuge, and printer. • Repairs: Always unplug the power cord before attempting any repairs or service. • Defective Cords: If a power cord or plug is damaged, promptly request replacement service.
Section 5 Specimen Collection and Preparation for Testing 5.1 VENOUS BLOOD FOR HEMATOLOGY Draw venous blood into collection tubes containing the anticoagulants disodium or tri-potassium ethylenediamine-tetraacetate (EDTA). 5.1.1 Collection Procedures • Be sure to wear laboratory gloves. Use only clean glassware and sterilized collecting instruments. Before venipuncture, clean the skin area with an antiseptic agent and wipe dry.
5.1.4 S pecimen Storage and Stability – QBC AccuTubes Venous blood samples may be stored at room temperature 68° to 77°F (20° to 25°C) for up to 8 hours prior to preparation of AccuTubes. Samples that cannot be tested immediately must be refrigerated if the room temperature is above 77°F (25°C). Refrigerated samples stored at 36° to 46°F (2° to 8°C) are stable for up to 8 hours. Bring samples back to room temperature before you prepare an AccuTube.
Section 6 Test Procedure – QBC AccuTubeTM 6.1 MATERIALS PROVIDED The Autoread Plus Hematology System consists of the following instruments and accessories with which to perform hematology tests: • QBC Autoread Plus Analyzer with software cartridge • QBC Power Pack • QBC Capillary Centrifuge • Printer • Calibration Check Rod • Workstation • Forceps • QBC Pipetter with AccuTube Spacer WARNING Acridine orange reagent may be toxic; do not ingest. Avoid contact with skin, eyes, and clothing.
FLOAT ACCUTUBE I.D. LINE 70 µL NOMINAL FILL ANTICOAGULANT REAGENT COATING STOPPER Figure 6-1. AccuTube with Partially Seated Stopper and Separate Float 6.3.1 Description The AccuTube (Figure 6-1) can be filled with either venous or capillary blood and incorporates an identification line, graduated fill lines, precoated reagents, and a partially seated stopper.
Step 2: Rock the AccuTube to Mix Step 2 Rock 5 Times Note: Do not allow the blood to touch the AccuTube rubber stopper while performing this step. If blood stops moving, loosen or remove the stopper and finish mixing, then re‑insert the stopper. A Hold the AccuTube in the center. Rock the AccuTube back and forth at least 5 times. Move blood end to end to mix well with orange coating. B A + B = 1 ROCK Step 3: Seat the Stopper Turn the AccuTube upright. Hold the AccuTube near the stopper end.
Step 5: Centrifuge the AccuTube Step 5 Centrifuge Open the centrifuge lid and remove the metal cover. Hold the AccuTube so the rubber stopper is toward the outside edge of the rotor. Place the AccuTube in the centrifuge. Balance the rotor by placing an AccuTube (balance tube may be empty or full) in the slot opposite the patient AccuTube. Place the metal cover over the rotor and screw in place until finger tight. DO NOT OVER TIGHTEN!! Close the lid and press ON/OFF button.
6.4 BETWEEN-SPIN ACCUTUBES TIME DELAY FOR Since possible exposure of blood samples to heat buildup in the centrifuge rotor compartment can adversely affect cell layering, wait at least 3 minutes between successive spins if the ambient temperature is between 68°-90°F (20°-32°C). If the ambient temperature is between 90°-98°F (32°‑37°C), a 15 minute wait period is required to allow for sufficient cooling of the rotor. Between each spin, be sure the rotor cover is removed and the rotor is empty. 6.
6.7 TROUBLESHOOTING TIPS FOR ACCUTUBES This section lists problems that may be encountered while preparing QBC AccuTubes or while operating the QBC Autoread Plus. Problem: Stopper comes out after filling. Action: Problem: AccuTube is underfilled. Action: I f filling the AccuTube with a pipetter, check that the spacer is placed on the pipetter correctly. When filling the AccuTube by capillary action, check to be sure that the blood column reaches the bottom black fill line on the tube.
Section 7 System Performance – QBC AccuTubes 7.1 TEST RESULTS 7.2 TEST LIMITATIONS 7.1.1 Digit-Decimal Format Quality medical care requires that laboratory values be correlated with each patient’s symptoms and signs by a trained practitioner. Test values generated by the Autoread Plus analyzer are displayed in the following units and decimal formats: • Hematocrit, % • Hemoglobin, g/dL • MCHC*, g/dL • Platelet Count (PLT), 109/L • White Cell Count (WBC), 109/L • GRANS (abs.), 109/L • GRANS (rel.
7.4 SPECIFIC PERFORMANCE CHARACTERISTICS 7.2 TEST LIMITATIONS (continued) Automated granulocyte and lymphocyte/monocyte differential counts cannot replace the conventional manual differential. Due to the grouping by density of the cell populations by the QBC test method, the system cannot discriminate between normal and abnormal cell types in disease states characterized by the presence of abnormal white cell types or nucleated red blood cells.
7.4.1 Precision (continued) multiple days at three sites using QBC AccuTubes and the QBC Autoread Plus System. The results of this study are presented in Table 7-2. In a separate precision study, intra- and inter-run precision were assessed using a dual level QBC Control (#424304). The controls were assayed on Table 7-2 .
7.4.2 Accuracy Approximately 290 blood samples were analyzed on both the QBC Autoread Plus System with AccuTubes and Coulter™ Hematology analyzers (S Plus, S Plus IV, STKS, STKR)*. The correlation coefficients for the WBC, Gran, L/M, HCT, and HB parameters were 0.95 or greater. The correlation coefficient for the PLT parameter was 0.93. Complete statistical results are presented below.
Section 8 Bibliography 1. Wintrobe, M.M. (1981) Clinical Hematology, 8th Ed., Lea & Febiger, Phila., PA. 2. Wintrobe, M.M. (1933) “Macroscopic Examination of the Blood,” American Journal of Medicine, SC., 185:58-71. 3. Olef, I. (1937) “The Determination of Platelet Volume,” Journal of Laboratory and Clinical Medicine, 23:166-178. 4. Bessis, M. (1940) “Une méthode permettant l’isolement des différents éléments figurés du sang,” Sang, 14:262. 5. Davidson, E.
Test Procedures for QBC Venous and Capillary Tubes A-1.1 MATERIALS PROVIDED The QBC Autoread Plus Hematology System consists of the following instruments and accessories with which to perform hematology tests: • QBC Autoread Plus Analyzer with software cartridge • QBC Power Pack • QBC Capillary Centrifuge • Printer • Calibration Check Rod • Workstation • Forceps • QBC Pipetter A-1.2 MATERIALS REQUIRED BUT NOT PROVIDED A-1.2.
A-1.3.1 Procedures with Standard QBC Venous Tubes A (Note: Handling differences illustrated in the procedures that follow are due to differences between the 100-Test (p/n 424240) and 1000-Test (p/n 424237) QBC Venous Tube packaging.) IMPORTANT: For directions on opening and closing the barrel of the QBC pipetter, refer to Section 4.8.
Step 2: Roll Tube Between Fingers to Mix C Gently roll tube between fingers at least 10 times or for at least 5 seconds, keeping unsealed end slightly above horizontal (D). Proceed promptly to Step 3. Step 3: Insert Float With 424240 Tray – Slide unsealed end of tube over tip of pre-positioned float (E1) and push until float is inside tube as far as possible. Gently lift closure end of tube until float releases from its tray slot.
Step 5: Place Tube in Analyzer Place centrifuged venous tube onto loading platform of Autoread Plus analyzer; select normal range of patient, if desired; then close platform door. ASSAY IN PROGRESS will appear on message display, followed by test sequence described in Section 4.2.2. Leave door closed until assay is completed and test results are displayed and printed. See Section 4.2.3.
C Turn tube around and tilt, allowing blood to flow to opposite end of tube (C). Roll tube between fingers at least 10 times or for at least 5 seconds to mix blood with potassium oxalate and acridine orange coating. Promptly proceed to Step 2. D1 With 424241 Tray Step 2: Seal Tube and Insert Float With 424241 Tray – Place gloved index finger over end of tube nearest fill lines, and insert distal end into closure in tube tray (D1).
Step 3: Centrifuge for 5 Minutes Place blood tubes in QBC Capillary Centrifuge. Spin down according to instructions in centrifuge manual. When centrifugation is complete, promptly remove tubes. Time Delay Between Completion of Centrifugation and Tube Reading: Centrifuged QBC tubes are stable for up to 4 hours prior to reading if stored vertically (closure down) in workstation, away from heat and intense light.
A-1.4 CALIBRATION DETAILS Perform the calibration check described in Section 4 of this manual. Before running patient samples, daily testing of the Autoread Plus analyzer calibration check rod is strongly recommended to verify the performance of the instrument. Calibration adjustments must be made only by authorized service personnel. A-1.5 QUALITY CONTROLS A-1.5.1 QBC Hematology Tests Controls and proficiency tests to monitor performance are described in 4.5.2 and 4.5.3.
System Performance with QBC Standard Tubes Appendix A-2 A-2.1 TEST RESULTS A-2.1.1 Digit-Decimal Format Test values generated by the QBC Autoread Plus analyzer are displayed in the following units and decimal formats: • Hematocrit, % • Hemoglobin, g/dL • MCHC*, g/dL • Platelet Count (PLT), 109/L • White Cell Count (WBC), 109/L • GRANS (abs.), 109/L • GRANS (rel.), % • LYMPH/MONO (abs.), 109/L • LYMPH/MONO (rel.), % XX.X XX.X XX.X XXX XX.X XX.X XX XX.X XX * Mean Corpuscular Hemoglobin Concentration.
A-2.2 TEST LIMITATIONS A-2.3 EXPECTED VALUES Quality medical care requires that laboratory values be correlated with each patient’s symptoms and signs by a trained practitioner. The following table provides normal ranges reported in the literature.1,12 Offices or laboratories may choose to develop normal hematology ranges based on the characteristics of their patient population. Section A-2.1.2 lists the validated upper and lower limits of the operating range.
A-2.4 SPECIFIC CHARACTERISTICS PERFORMANCE A-2.4.1 Precision means and % C.V.’s below are based on replicate tests of 10 tubes per sample; e.g., for Sample 1, n=10, etc. Data on within-run reproducibility of the QBC Autoread Plus System from five blood specimens with QBC venous tubes and five blood specimens with QBC capillary tubes are shown in Table A‑2‑1.
A-2.4.2 Accuracy Performance of the Autoread Plus analyzer with QBC standard tubes is typical of the family of QBC hematology analyzers exhibiting the performance shown in Table A-2-2 below. Table A-2-2 CORRELATION DATA: QBC SYSTEM HCT, HB, PLT, AND WBC Parameter Specimen (Reference Method) n= Range of Reference Values Correlation Coefficient Slope Intercept Venous (Microhematocrit)13 200 16.5 - 56.6 0.9884 0.9952 –0.3655 Capillary (Microhematocrit)13 100 34.0 - 50.7 0.9450 1.0000 0.
Appendix B Service, Maintenance and Specifications B-1 INTRODUCTION For technical assistance in the United States, call: Service and maintenance procedures for the QBC Autoread Plus System approved for use by the customer are limited to the items described in this Appendix. DO NOT ATTEMPT ANY OTHER SERVICE OR REPAIRS. Appendix C contains a list of replacement parts and accessories available through your QBC distributor. QBC Diagnostics Inc.
B-3 SPECIFICATIONS B-3.3 QBC Capillary Centrifuge (p/n 424740 ) B-3.1 Autoread Plus Analyzer (p/n 429576) Nominal Speed Electrical Inputs Relative Centrifugal 14,387 × g Force (RCF) (at nominal speed) Display Operating Temp. (with QBC Tubes) (with AccuTube) ±16.5 VDC, ±12.
Appendix C List of Parts – QBC Autoread Plus System DISPOSABLE BLOOD TUBES Order No. QBC AccuTubes 100 Tests 423406 QBC Venous Tubes 100 Tests 1000 Tests 424240 424237 QBC Capillary Tubes 100 Tests 1000 Tests 424241 424238 CONSUMABLES AND ACCESSORIES Hematology Controls Extended Range Controls 1.8 mm Blade Lancets 2.
Appendix D Warranty QBC Diagnostics Inc. warrants the QBC Autoread Plus System to be free from defects in workmanship and materials for a period of one (1) year from the date of installation, provided the System is operated in accordance with the QBC Autoread Plus System Manual. During such period, QBC Diagnostics Inc. agrees to replace or repair any parts which, in its sole judgment, are found to be defective, provided the System has not been subjected to misuse or abuse.
