Haemonetics SEBRA 1040 Service Manual Download Page 41

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P/N 108755-US, Manual revision: AA

Chapter 5

Strain Gauge

STRAIN GAUGE INSPECTION AND REPLACEMENT . . . . . . . . . . . . . . . . . 5-2

Strain gauge replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

BODY BOARD STRAIN GAUGE AMP ADJUSTMENT PROCEDURE . . . . . 5-7

Summary of Contents for SEBRA 1040

Page 1: ...108755 US service manual Model 1040 Digital Blood Shaker...

Page 2: ...Haemonetics SEBRA Model 1040 Digital Blood Shaker Service Manual P N 108755 US Manual revision AA Haemonetics Corporation Previous SEBRA P N 10400810 00 400 Wood Road Braintree MA 02184 USA June 2010...

Page 3: ......

Page 5: ...Fax 41 22 363 9054 Disclaimer This manual is intended as a guide to provide the operator with necessary instruc tions on the proper use and maintenance of certain Haemonetics Corporation products Thi...

Page 6: ...90 11 58 Fax 0800 91 48 76 Haemonetics GmbH Wolfratshauser Stra e 84 81379 Munich Germany Tel 0800 180 8890 Fax 0800 182 8064 Haemonetics Hong Kong Ltd Rooms 2202 22 F Harbour Centre 25 Harbour Road...

Page 7: ...94 670 Haemonetics Asia Incorporated Taiwan Branch 26F 1 No 102 Roosevelt Road Sec 2 Taipei Taiwan Tel 886 2 2369 0722 Fax 886 2 2364 3698 Haemonetics Ltd 5 Ashley Drive Bothwell Glasgow G71 8BS Unite...

Page 8: ...vi Preface P N 108755 US Manual revision AA...

Page 9: ...OPERATION 2 3 COMPONENT IDENTIFICATION 2 4 COMMUNICATING WITH THE SHAKER 2 5 Chapter 3 Inspection Procedures INITIAL EVALUATION 3 2 VISUAL INSPECTION 3 3 INSPECTION WITH POWER APPLIED 3 4 CALIBRATION...

Page 10: ...de 4 scale factor 9 6 Program setting Bag Code 5 scale factor 9 6 Program setting Bag Code 6 scale factor 9 6 Program setting Bag Code 8 scale factor 9 6 CLOCK CALENDAR INITIALIZATION 9 7 MICROPROCESS...

Page 11: ...Y REMOVAL 13 3 INDICATOR LIGHT REPLACEMENT 13 4 HEAD BOARD REPLACEMENT 13 5 KEYPAD REPLACEMENT 13 6 CAP ASSEMBLY INSTALLATION 13 7 Chapter 14 Power Supply POWER SUPPLY REPLACEMENT 14 2 Power supply in...

Page 12: ...x Table of Contents P N 108755 US Manual revision AA...

Page 13: ...5 5 Oscilloscope Wave Form 5 5 Figure 5 6 Weight Sensor Assembly 5 5 Figure 6 1 Link Assembly Inspection 6 2 Figure 6 2 Link Assembly Removal and Installation 6 3 Figure 6 3 Nut Attached to Spring Gu...

Page 14: ...xii List of Figures P N 108755 US Manual revision AA...

Page 15: ...uction PRELIMINARY INFORMATION 1 2 Document scope 1 2 Intended audience 1 2 SYMBOLS 1 3 Symbols found in this document 1 3 Symbols found on the device 1 3 REPLACEMENT PARTS ORDERING AND TOOLS REQUIRED...

Page 16: ...epair may have re ceived individual training at Haemonetics and only will be performing basic repair Level Two technicians should have basic technical skills and a thorough understanding of Haemonetic...

Page 17: ...t initiating an action or creating a situation that could result in damage to equipment or impair the quality of the blood products personal injury is unlikely Warning advises the operator against ini...

Page 18: ...ols z Oscilloscope z Snap ring pliers z Automatic center punch z Black permanent ink pen Sharpie or equivalent z Loctite 271 Red z Loctite 242 Blue z Loctite 3412 two part structural adhesive z Calipe...

Page 19: ...Electrostatic Discharge HB Head Board BB Body Board CL Clock CPM Cycles per minute GND Ground LED Light Emitting Diode CW Clockwise CCW Counter Clockwise Caution Be careful not to burn PCBA s and surr...

Page 20: ...1 6 Introduction P N 108755 US Manual revision AA...

Page 21: ...P N 108755 US Manual revision AA Chapter 2 Product Description PRODUCT OVERVIEW 2 2 THEORY OF OPERATION 2 3 COMPONENT IDENTIFICATION 2 4 COMMUNICATING WITH THE SHAKER 2 5...

Page 22: ...ervation as well as visual blood flow rate indicators which show the adequacy of blood flow The completion of the blood collection cycle is signaled by both audible and visual indicators All data pert...

Page 23: ...mate angle of 32 at an oscillation of approximately 38 cycles per minute The collection process is monitored continuously to ensure the required weight or volume is obtained The blood weight is compar...

Page 24: ...2 1 Shaker Components indicates each part of the Model 1040 Figure 2 1 Shaker Components Figure 2 2 Digital Blood Shaker Power Detail 1 2 3 4 5 6 1 Keypad 2 Clamp 3 Bag Tray 4 Bag Pegs 5 Shroud Assem...

Page 25: ...xpressed DDMMMYY while the Shaker display will show actual data such as 01JAN02 flashing A flashing character is indicated by bold type If a character on the display is flashing its value may be incre...

Page 26: ...passing the calibration portion of the setup function to proceed directly to the full or partial collection option z To clamp and unclamp the blood bag tubing from the READY mode psword 1 The psword 1...

Page 27: ...P N 108755 US Manual revision AA Chapter 3 Inspection Procedures INITIAL EVALUATION 3 2 VISUAL INSPECTION 3 3 INSPECTION WITH POWER APPLIED 3 4 CALIBRATION 3 5 TROUBLESHOOTING 3 7...

Page 28: ...AL EVALUATION Utilize the following procedures to diagnose the problem s affecting the Shaker The initial source of information is normally the customer complaint Other sources may be engineering reco...

Page 29: ...e Shaker to determine that it is secure Inspect under the shroud at the link assembly to verify that there are no obstructions to the crank M assembly link assembly or shroud assembly Also inspect for...

Page 30: ...ED display will show a pixel test as it initializes then it will display READY 2 Press the button The shroud should oscillate in a smooth end to end tilting motion accompanied by the sound of the moto...

Page 31: ...ing against the Shaker shroud assembly 5 Press The shroud assembly will start oscillating The display will first read weighing for a short time then the display will show a zerovalue number This numbe...

Page 32: ...mber listed before the word failure reference Troubleshooting on page 3 7 9 Press to return to ready mode and remove the certified calibration weight from the bag tray Note The calibration weight has...

Page 33: ...ing motion or fails to move Something obstructing the shroud or link Verify power cord is not blocking shroud on its back stroke Inspect area around and under shroud for obstruct ing objects and remov...

Page 34: ...r and base plate have good connections and are secure reference Schematic Assembly Interconnect Diagrams Loose crimp connector Check all attaching nuts for corrosion and tightness Broken wire Inspect...

Page 35: ...r component failure Follow malfunction isolation section for suspected component Display or indicator lights do not illuminate LED burnt out Replace head board See Chapter 13 Head Board Replacement on...

Page 36: ...3 10 Inspection Procedures P N 108755 US Manual revision AA...

Page 37: ...P N 108755 US Manual revision AA Chapter 4 Parts Access BASE PLATE REMOVAL 4 2 SHROUD REMOVAL 4 3...

Page 38: ...e near strong electrostatic electromatnetic magnetic or radioactive fields Use an electrostatic safe workstation and repair techniques 2 Lay the Shaker on its side or place on its back in a servicing...

Page 39: ...or removal of the chassis plate assembly may aid this procedure 1 Use a long phillips screwdriver to remove the two screws that secure the female knife edge to the shroud in the front Loosen the two r...

Page 40: ...4 4 Parts Access P N 108755 US Manual revision AA...

Page 41: ...P N 108755 US Manual revision AA Chapter 5 Strain Gauge STRAIN GAUGE INSPECTION AND REPLACEMENT 5 2 Strain gauge replacement 5 6 BODY BOARD STRAIN GAUGE AMP ADJUSTMENT PROCEDURE 5 7...

Page 42: ...ly Removal Figure 5 2 Nut Plate and Chassis Plate Mounting Screws 1 With the base plate and shroud removed from the Shaker remove the two screws securing the chassis plate to the bracing bar Motor Cha...

Page 43: ...P3 and P7 from the body board and P3 from the power supply board Remove the short ground cable Set aside the body board and power supply Caution Tie up insulate or otherwise control the ground wires a...

Page 44: ...he power supply PCBA is exposed when the Body Board and Power Supply PCBA s are removed from the base Use CAUTION when handling this assembly Warning Before applying AC power connect AC ground from th...

Page 45: ...DVM ground lead black to TP5 and the positive lead red to TP2 on the body board 13 Apply power to the Shaker Press the on the keypad to start the Shaker 14 With no weight on the knife edge of the stra...

Page 46: ...sion AA 17 Disassemble bench set up and reassemble Shaker Strain gauge replacement 1 If there is a problem that is associated with the strain gauge assembly please contact Haemonetics Customer Care Ce...

Page 47: ...the shroud 5 Place calibration weight on the shroud with flipper toward the bag pins 6 Adjust R7 for 785 5 reading 7 Remove the calibration weight Readjust R3 for 50 3 8 Repeat steps 4 through 7 until...

Page 48: ...5 8 Strain Gauge P N 108755 US Manual revision AA...

Page 49: ...P N 108755 US Manual revision AA Chapter 6 Link Assembly LINK ASSEMBLY INSPECTION 6 2 LINK ASSEMBLY REMOVAL 6 3 LINK ASSEMBLY INSTALLATION 6 4 SPRING TENSION ADJUSTMENT 6 5...

Page 50: ...curity and ease of movement The shaft should fit tightly into the link Y at either end and should be peened in place at both ends The link M and link Y should move freely without excessive play The Te...

Page 51: ...stallation 1 Remove the link assembly by detaching the shoulder bolt that secures the Link M to the Crank M Note The threads on the shoulder bolt are left handed 2 Remove the two nuts and lock washers...

Page 52: ...s at this point 2 Ensuring that the torsion spring is in the groove of the torsion bushing ro tate the shaft approximately turn toward the neck or until the 832 shoul der screw on shaft is facing neck...

Page 53: ...noise level between strokes if even adjustment is adequate Advance to step 7 If not even advance to the next step 2 Stop shroud movement and turn off Shaker 3 Loosen the left and right nuts on the sp...

Page 54: ...on the Shaker 6 Repeat steps 2 4 until an optimum noise level has been achieved 7 Press the to cycle shroud assembly count the cycles for one minute CPM The CPM should be 38cpm 5 cycles Note If the p...

Page 55: ...P N 108755 US Manual revision AA Chapter 7 Tube Clamp Assembly TUBE CLAMP SOLENOID INSPECTION REPLACEMENT AND ADJUSTMENT 7 2 TUBE CLAMP INSPECTION AND ADJUSTMENT 7 5...

Page 56: ...of the shroud The follow ing three things should happen z The audible alert will sound momentarily z The red indicator light on the top of the Shaker will illuminate z The solenoid should audibly enga...

Page 57: ...erify its motion This pro cedure may need to be repeated several times to achieve the desired af fect 9 Verify that the rubber gasket around the neck of the Shaker provides a good seal to prevent flui...

Page 58: ...glue it to the tube clamp 17 Apply Dow Corning 55 grease Molycoat to the O ring and tube clamp with finger Try to avoid greasing the face of the tube clamp 18 Reassemble tube clamp by placing the nose...

Page 59: ...t bent or causing the tube clamp to bind in the clamp body 6 Replace adjust the tube clamp on the shaft to a length of 4 125 0 010 0 005 in Apply a drop of Super Glue to where the shaft and clamp meet...

Page 60: ...7 6 Tube Clamp Assembly P N 108755 US Manual revision AA...

Page 61: ...P N 108755 US Manual revision AA Chapter 8 PCB Chassis Assembly Installation INSTALLING THE PCB CHASSIS ASSEMBLY 8 2...

Page 62: ...tor P7 on the Body Board 2 Set the Shaker on its feet with the chassis assembly out of the base 3 Place AC ground wire directly from the input power receptacle onto the chassis ground and secure with...

Page 63: ...cycles If PCBA 10403600 XX Revision A or later is installed RV1 is no longer used Re sistor R6 controls the cpm 8 Perform Spring Tension Adjustment procedures see Chapter 6 Spring Tension Adjustment...

Page 64: ...8 4 PCB Chassis Assembly Installation P N 108755 US Manual revision AA...

Page 65: ...0 scale factor 9 6 Program setting Bag Code 3 scale factor 9 6 Program setting Bag Code 4 scale factor 9 6 Program setting Bag Code 5 scale factor 9 6 Program setting Bag Code 6 scale factor 9 6 Prog...

Page 66: ...he Shaker see Chapter 5 Body Board Strain Gauge Amp Adjustment Procedure on page 5 7 2 Disconnect all plug connectors from Body Board 3 Remove the four mounting screws and install the new Body Board 4...

Page 67: ...SETTING F1 1 Ensure that the Shaker is powered on Press then 1 The display will read pw Enter default password by pressing six times 2 Press 0 then thirteen times The display will read f1 02 3 Press t...

Page 68: ...he shaker will automatically tare the weight of the bag prior to starting collec tion Determine which bag code bag the center will use Verify or change the default bag code by following the setup inst...

Page 69: ...s to position the flashing digit left or right Press the or to increase or decrease to the desired default collection value Weight adjustment range is from 250 to 700 grams 8 Press twice to return to...

Page 70: ...g Code 4 scale factor 1 Press three times The display will read 4C 00280 2 Press seventeen times The display will read 4C 00263 Bag Code 4 is now set Program setting Bag Code 5 scale factor 1 Press th...

Page 71: ...ual revision AA CLOCK CALENDAR INITIALIZATION 1 Press 1 Enter default password and press 2 Press Display will read 24 hour 3 Press Press or to set the hour 4 Repeat step 3 to set the minutes year mont...

Page 72: ...9 8 Microprocessor P N 108755 US Manual revision AA MICROPROCESSOR SETTINGS Microprocessor default settings Full Unit gm Bag 0 Time and Date Microprocessor program settings Den 1055 f1 04 f2 07...

Page 73: ...00276 4A 00585 4B 00450 4C 00263 5A 00585 5B 00450 5C 00266 6A 00585 6B 00450 6C 00300 7A 00446 7B 00350 7C 00258 8A 00585 8B 00450 8C 00270 9A 00585 9B 00450 9C 00280 Warning These settings can be d...

Page 74: ...gives the default bag codes Note Contact Haemonetics to further consult about the correct bag code for your blood collection use a Bag volume weight may need to be changed depending on which bag is us...

Page 75: ...on AA Chapter 10 Shroud and Base Assemblies SHROUD AND BASE INSPECTION 10 2 SHROUD BOSS FAILURE 10 3 MOTOR REPLACEMENT 10 4 BAG PIN REMOVAL 10 5 BAG PIN INSTALLATION 10 6 BOWING THE SHROUD 10 7 SHROUD...

Page 76: ...es or missing pieces of plastic The shroud bosses should be secure and should show no evidence of previous repair The shroud should be replaced if the shroud boss is severely damaged loose or bro ken...

Page 77: ...d carrying packaging for shipment and transporting to and from donor areas 2 If the front of the shroud can be lifted without lifting the rest of the Shaker and the shroud boss is still attached to th...

Page 78: ...k yet the LED illu minates and comes to the READY mode Figure 10 1 Location of Motor Screws Fourth Screw Obscured by Link Y 2 To replace the motor subassembly remove base plate Chapter 4 Base Plate Re...

Page 79: ...ight measurement Damage requiring replacement of the bag pins is extremely rare and is usually the result of cleaning with improper chemicals The pins may be removed by holding the exposed top portion...

Page 80: ...ate or in 20 x 0 38 in pan head phillips screw through the washer or plate and shroud into the pin Partially tighten the screw into the pin Repeat this process for the remaining pin 2 To obtain the co...

Page 81: ...lood 1 Partially assemble the shroud by installing the bag pins as described in the previous section 2 Place the shroud in a sink or wash tub with the opening facing up Insert a 2 x 4 x 5 50 in wooden...

Page 82: ...he Link D slides into the grooves in the rear boss of the shroud and behind the cone screw washers Using a long screwdriver tighten the rear boss screws 4 Apply a small amount of grease in the center...

Page 83: ...P N 108755 US Manual revision AA Chapter 11 Clamp Body Boss Replacement REPLACING THE BODY BOSS 11 2...

Page 84: ...The screw holes in the clamp body bosses are concentric and the thickest portion typically rests in the corner of the neck of the Shaker 2 Verify that the clamp body boss is rotated so that it is sec...

Page 85: ...ttachment without allowing adhesive to collect in the area between the clamp body boss and clamp body 7 Position boss in its proper location noting the location of its screw hole in relation to the ot...

Page 86: ...11 4 Clamp Body Boss Replacement P N 108755 US Manual revision AA...

Page 87: ...P N 108755 US Manual revision AA Chapter 12 Audible Alert Replacement AUDIBLE ALERT FAILURE 12 2 AUDIBLE ALERT REMOVAL 12 3 AUDIBLE ALERT INSTALLATION 12 4...

Page 88: ...LURE Caution Always wear an ESD strap when working on the Shaker If the tube clamp mechanism and flow rate indicator lights function properly but the audible tone does not sound to signal clamping the...

Page 89: ...on page 4 3 2 Remove Body Board and Power Supply Assemblies see Chapter 5 Body Board Strain Gauge Amp Adjustment Procedure on page 5 7 and Chapter 14 Power Supply Replacement on page 14 2 3 Remove th...

Page 90: ...ible Alert Assembly into the base of the Shaker securing the plastic retaining nut 2 Connect the cable of the new Audible Alert Assembly P N 10402100 to P7 on the Body Board of the PCB chassis assembl...

Page 91: ...Manual revision AA Chapter 13 Cap Assembly CAP ASSEMBLY INFORMATION 13 2 CAP ASSEMBLY REMOVAL 13 3 INDICATOR LIGHT REPLACEMENT 13 4 HEAD BOARD REPLACEMENT 13 5 KEYPAD REPLACEMENT 13 6 CAP ASSEMBLY INS...

Page 92: ...108755 US Manual revision AA CAP ASSEMBLY INFORMATION Caution Always wear an ESD strap when working on the Shaker The cap assembly provides access to the head board LEDs for indicator lights and displ...

Page 93: ...not to gouge the plate Gently peel the face plate partially up from the left to the right When the face plate is approximately two thirds removed the keypad will be exposed Place a finger on the keypa...

Page 94: ...13 4 Cap Assembly P N 108755 US Manual revision AA INDICATOR LIGHT REPLACEMENT Pull head board out of cap assembly by removing the four mounting screws using care when handling keypad...

Page 95: ...CEMENT 1 Pull head board out of cap assembly by removing the four mounting screws using care when handling keypad 2 Unplug the connectors attached to the head board Replace head board plugging the con...

Page 96: ...board 3 Peel up the old keypad ensuring that the residual adhesive is removed from the face of the cap 4 Peel the backing off of a new keypad and center it on the cap Thread the keypad connector thro...

Page 97: ...Y INSTALLATION 1 Thread ribbon cable through goose neck Connect Solenoid connector 2 Inspect gasket for gum or tears if necessary 3 Remove residual adhesive from cap by gently rolling it off with a fi...

Page 98: ...13 8 Cap Assembly P N 108755 US Manual revision AA...

Page 99: ...P N 108755 US Manual revision AA Chapter 14 Power Supply POWER SUPPLY REPLACEMENT 14 2 Power supply inspection 14 2 Power supply replacement 14 2...

Page 100: ...this assembly Note Schematics are needed for this operation Figure 14 1 Location of Fuse Holder Power supply inspection 1 Remove base plate see Chapter 4 Base Plate Removal on page 4 2 2 Check the P1...

Page 101: ...y with the same orientation 3 Attach the extender harness With the motor installed and the shroud mounted start the Shaker rocking Adjust RV1 so that the Shaker rocks at 38 rpm 5 rpm In later versions...

Page 102: ...14 4 Power Supply P N 108755 US Manual revision AA...

Page 103: ...P N 108755 US Manual revision AA Chapter 15 Shaker Keystroke Quick Reference KEYSTROKE QUICK REFERENCE 15 2...

Page 104: ...o pause mode during collection Terminate collection when in pause mode restart return Return to ready mode Resume blood collection when in pause mode Restart calibration after zero weight measurement...

Page 105: ......

Page 106: ...Haemonetics Corporation 400 Wood Road Braintree MA 02184 USA www haemonetics com 1995 2010 Haemonetics Corporation...

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