Welch Allyn Spot Vital Signs S S a mm g DIA a mm g SpO2 min Spot Vital Signs Service Manual
ii Welch Allyn Spot Vital Signs Copyright 2012 Welch Allyn. All rights are reserved. To support the intended use of the product described in this publication, the purchaser of the product is permitted to copy this publication, for internal distribution only, from the media provided by Welch Allyn. No other use, reproduction, or distribution of the publication, or any part of it, is permitted without written permission from Welch Allyn.
Service Manual iii Revision Information Date Revision Description Originator Approval 3/31/01 A Introduction of Service Manual JDB JDB 12/17/01 B Correction made to Section 1 regarding temperature accuracy, Section 2 regarding part numbers, Section 3 regarding error codes, and updates to the drawings JDB JDB 9/12/02 C JDB Added New PCB layout and schematic for Spot Extensions. Added tool SRC-MAX to tool list in Section 2.3.
iv Welch Allyn Spot Vital Signs
v Contents 1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Warnings and cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Blood pressure warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SpO2 warnings . . . . . . . . . . . . . . . . . . . . . . .
vi Contents Welch Allyn Spot Vital Signs 3 - Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Power on/off and system check procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Internal configuration mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Functional verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Temperature functional check . . . . . .
Service Manual Contents vii Main CPU power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Clock/calendar power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Mod B NIBP power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Thermometer power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 SpO2 power . . . . . . . . . . . . . . . . . . . . . . . .
viii Contents Welch Allyn Spot Vital Signs Pneumatic calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Pneumatic accuracy test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Valve control test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Voltage calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Blank mode current test. . .
1 1 Introduction Welch Allyn has updated the Spot Vital Signs from its original configuration; offering a Pressure Preset option (Version 2, page 14) instead of a Print option (Version 1, page 13). In addition, some Version 2 configurations offer Masimo SpO2 technology. Table 1.
2 Introduction Welch Allyn Spot Vital Signs WARNING The Welch Allyn Spot Vital Signs is not intended for continuous monitoring. Do not leave the device unattended while taking measurements on a patient. WARNING To ensure patient safety, use only accessories and supplies (i.e., blood pressure cuffs, hoses, temperature probes, SpO2 sensors, etc.) recommended for or supplied with Spot Vital Signs. Using unapproved accessories with Spot Vital Signs can affect patient and/or operator safety.
Service Manual Introduction 3 Blood pressure warnings WARNING To ensure pediatric blood pressure accuracy and safety, the Welch Allyn Child Print Cuff (5200-03), the Welch Allyn Small Child Durable One-Piece Cuff (5082-203-3), and the Welch Allyn Small Child Disposable One-Piece Cuff (5082-93-3) are the smallest cuffs allowed for use with young children and infants. The circumference of the child’s arm must fit within the range markings on the cuff.
4 Introduction Welch Allyn Spot Vital Signs SpO2 warnings WARNING Only use Spot Vital Signs with Masimo or Nellcor SpO2 option with Masimo or Nellcor brand sensors and accessories, respectively. Using the wrong or unapproved sensors or cables may cause improper performance. WARNING The SpO2 sensors and extension cables are intended for use only for pulse oximetry measurements. Do not attempt to connect these cables to a PC or any similar device.
Service Manual Introduction 5 Temperature warnings WARNING Single-use, disposable probe covers, available from Welch Allyn, limit patient cross-contamination. The use of any other probe cover or the failure to use a probe cover may produce temperature errors and is specifically not recommended. WARNING Use only oral probes (blue cap) for taking oral and axillary temperatures. Use only rectal probes (red cap) for taking rectal temperatures. The use of the wrong probe may produce temperature errors.
6 Introduction Welch Allyn Spot Vital Signs Blood pressure cautions Caution Extremity and blood pressure cuff motion should be minimized during blood pressure determinations. Caution If the blood pressure cuff is not at heart level, the difference in reading due to the hydrostatic effect should be noted. The value of 1.80 mmHg must be added to the displayed reading for every inch (2.5 cm) above heart level. The value of 1.80 mmHg must be subtracted from the displayed reading for every inch (2.
Service Manual Introduction 7 Electrostatic discharge (ESD) Electrostatic discharge is a sudden current flowing from a charged object to another object or to ground. Electrostatic charges can accomulate on common items such as foam drinking cups, cellophane tape, synthetic clothing, untreated foam packaging material, and untreated plastic bags and work folders, to name only a few.
8 Introduction Welch Allyn Spot Vital Signs Symbols The following symbols are associated with the Spot Vital Signs. Safety symbols Agency symbols Identifies information within the manual to avoid injury or equipment failure. Caution: consult accompanying documents Type BF Equipment Pb Internally Powered, Lead Acid Battery Handle with Care Transport Temperature Storage Humidity Recycle Class II Equipment IPXØ Equipment is not protected against the ingress of liquid.
9 2 Overview Purpose and scope The Spot Vital Signs Service Manual is intended as a reference for maintenance and repair to the field replaceable unit (FRU) level and are listed on page 55. This manual provides the technical qualified service person with troubleshooting information, repair procedures, and calibration and performance verification instructions. A technical overview of the Spot subsystems is provided as an introduction to the device’s circuitry and pneumatics.
10 Overview Welch Allyn Spot Vital Signs Contents checklist Unpack the Welch Allyn Spot Vital Signs and applicable accessories, identify each item with the following checklist and inspect for missing items. Retain the shipping materials in the event of shipping damage or for return, if necessary, to Welch Allyn for repair or warranty service. All Spot Vital Signs include the following components: Spot Vital Signs Device. This device automatically measures and displays blood pressure and pulse rate.
Service Manual Overview 11 Service Caution Unauthorized repairs will void the warranty. A Welch Allyn Service Center must perform all repairs on products under warranty. Unauthorized repairs will void the warranty. Qualified electronics personnel or a Welch Allyn Service Center should repair products out of warranty. Technical assistance If you have an equipment problem that you cannot resolve, call the Welch Allyn Service Center nearest you for assistance.
12 Overview Welch Allyn Spot Vital Signs Service intervals Verify Spot Vital Signs annually for blood pressure calibration, temperature, and SpO2 accuracy. Spot Vital Signs configurations Table 2.
Service Manual Overview 13 Controls Figure 1. Spot Vital Signs with SureTemp Plus Thermometer (Version 1) Thermometer Eject Button: push to remove used temperature probe cover. S S a mm g DIA a mm g Next Patient/Clear/Cancel Button: • active display: clears the display. • in Standby Mode: recalls the last patient information. Pressing a second time clears the screen. • cancels an active blood pressure measurement and deflates the cuff.
14 Overview Welch Allyn Spot Vital Signs Figure 2. Spot Vital Signs with SureTemp Plus Thermometer (Version 2) Thermometer Eject Button: push to remove used temperature probe cover. S S a mm g DIA a mm g SpO2 Next Patient/Clear/Cancel Button: • active display: clears the display. • in Standby Mode: recalls the last patient information. Pressing a second time clears the screen. • cancels an active blood pressure measurement and deflates the cuff.
Service Manual Overview 15 LCD (liquid crystal display) The LCD may indicate any of the following: systolic blood pressure (mmHg or kPa), diastolic blood pressure (mmHg or kPa), temperature (F or C), thermometer mode, pulse rate, pulse signal level, SpO2, MAP (mmHg or kPa), and battery charge level. . Option no longer available. S S mm g DIA mm g Date/Time: indicates that the user must set/re-set the current date and time.
16 Overview Welch Allyn Spot Vital Signs Connections Use the following instructions to connect the blood pressure hose, thermometer probe, and optional attachments to the Spot Vital Signs. Figure 3. Spot Side and Rear Panel Connections Probe Cover Storage Compartment: storage space for one box of probe covers. SpO2 Cable Connection Port (for units with SpO2 only) Temperature Probe Holder: storage space for the temperature probe when not in use (for devices with SureTemp only).
Service Manual Overview 17 Blood pressure hose and cuff connections Have available the Spot Vital Signs, blood pressure cuff, and blood pressure hose. 1. Inspect the pressure hose; note that one end has a connector fitting and the other end does not. Attach the end without the connector fitting to the pressure hose connector (see page 14). Verify that the pressure hose is completely inserted over the connector and that the fit is snug. 2.
18 Overview Welch Allyn Spot Vital Signs DCpower connection Note To assure proper electrical isolation, replace the AC power transformer/charger using only the Welch Allyn specified part (REF 5200-101A, 5200-103A, 5200103Z). Use the Spot Vital Signs with battery power (after charging the battery) or battery and DC power supply. 1. Insert the round transformer connector into the DC power connection port on the left of the Spot Vital Signs (see page 16). 2.
19 3 Functional overview This functional verification procedure helps to confirm the proper operation of the Spot Vital Signs and options. This procedure supports the requirements of routine preventative maintenance. It is not necessary to disassemble the Spot Vital Signs to perform this procedure. For the calibration procedures, see “Calibration” on page 25. If the Spot Vital Signs fails certain functional tests or a circuit board is replaced, the device may require calibration.
20 Functional overview Welch Allyn Spot Vital Signs Internal configuration mode You can change several device operating parameters in the Internal Configuration Mode. When changed, these settings become the default power-up settings. You will also see non-changeable device configurations for technical service purposes. To enter the Configuration Mode: 1. Turn the Spot Vital Signs off. 2. Press and hold the Power - Blood Pressure Start/Stop buttons.
Service Manual Functional overview 21 Functional verification Complete all steps in this section before returning a Spot Vital Signs for service. Verify that the pressure meter used (if not specified by this service manual) is calibrated and the calibration certificate of the meter is traceable to NIST. The pressure meter testing the Spot Vital Signs must have an accuracy of better than "3 mmHg.
22 Functional overview Welch Allyn Spot Vital Signs NOTE: The pass/fail criteria for the blood pressure calibration check depends upon the accuracy of the pressure measurement standard used. • • If the pressure measurement standard used is rated with an accuracy of ±0.1 mmHg, the pass/fail criteria is ±2.9 mmHg in order to guarantee that the instrument under test is within ±3 mmHg of NIST. If the pressure measurement standard used is rated with an accuracy of ±1.0 mmHg, the pass/fail criteria is ±2.
Service Manual Functional overview 23 To begin functional verification of the SureTemp thermometer: Caution Store thermometers for testing in the same room as the 9600 Plus Calibration Tester for approximately 30 minutes prior to testing to allow for thermal accommodation. 1. Remove the probe from the probe well and clean it with either a 70% isopropyl alcohol solution, a 10% chlorine bleach solution, or a non-staining disinfectant. Let the probe air dry. Do not apply a probe cover. 2.
24 Functional overview Welch Allyn Spot Vital Signs SpO2 functional check There is no way to change the functionality of the SpO2 module. If the SpO2 is not functioning properly, contact Technical Service. Masimo This section applies to Version 2 only. Use the Masimo Tester to perform to functionally check the Masimo sensors. 1. Orient the Masimo extension cable such that the DB-9 connector connects to the SpO2 connector on Spot Vital Signs.
25 4 Calibration This chapter provides procedures to perform all adjustments required to calibrate the Spot Vital Signs to conform to Welch Allyn specifications. Calibration requires qualified personnel to open the device housing. WARNING Electric shock hazard. There are no user-serviceable parts inside Spot Vital Signs other than battery replacement (see “Battery removal and replacement” on page 70). An operator may only perform maintenance procedures specifically described in this manual.
26 Calibration Welch Allyn Spot Vital Signs Figure 5. Connect Diagram Part Number 401028 100 ml Vol 250 ml Vol 200 ml Vol mmHg 500 ml Vol MODE CALIBRATION RAT MasimoSET.
Service Manual Calibration 27 Voltage calibration 1. Follow the steps in “Connections”. 2. Adjust the power supply to 5.6 Vdc ±0.1 Vdc (+0.3/-0.0 Vdc). 3. Hold down the Blood Pressure Start/Stop button while powering up to enter the "configuration test mode". After the software versions are displayed, press the Mode button until the Spot Vital Signs displays "BAT" in the LCD window. 4. Select Calibrate > Voltage in the repair software. The Spot Vital Signs display window goes blank. 5.
28 Calibration Welch Allyn Spot Vital Signs Date/time set After recharging a dead battery or after disconnecting the battery for a few minutes, you must program the date and time screen. To set the date/time after after a power loss (Version 1 only): 1. Press and hold the Blood Pressure Start/Stop + Power buttons to enter the Internal Configuration mode. The Spot Vital Signs displays an E38 error. Press the C button to cancel the error, and the revision level of the internal software displays. 2.
29 5 Troubleshooting When the main printed circuit board (PCB) is replaced on a Spot Vital Signs version 1, the print function is no longer available. The new function, Pressure Preset, raises or lowers the blood pressure maximum inflation level for one measurement only. When replacing the main PCB, replace the switch array as well. The following table of conditions and error codes provides a quick reference of the descriptions and probable causes of error codes.
30 Troubleshooting Welch Allyn Spot Vital Signs Table 5. Blood Pressure Code Description Corrective Action C06 Measurement was outside of device’s measurement range Check patient condition. E10 Blood pressure cuff overpressure condition Check patient condition. Table 6. Temperature Code Description Corrective Action C20 Broken/missing probe Replace probe. P Loss of tissue contact Ensure proper probe positioning. E0.2, E0.
Service Manual Troubleshooting 31 Table 8. Inaccurate Blood Pressure Readings Possible Cause Explanation and Corrective Action Incorrect reference Use the correct Korotkoff sound to determine diastolic blood pressure. • Many listeners incorrectly equate diastolic blood pressure with the disappearance of sound only (phase 5).
32 Troubleshooting Welch Allyn Spot Vital Signs Table 11. Temperature Malfunction Possible Cause Explanation No temperature displayed Probe not replaced Corrective Action Replace probe in holder prior to taking another temperature. Table 12. SpO2 Malfunction Possible Cause Corrective Action Sensor in place but no SpO2 on Insert the patient’s finger completely into sensor. display Verify blood pressure and SpO2 measurements are not taken on the same extremity.
Service Manual Troubleshooting 33 Table 16. Blood Pressure Cuff Deflating Too Slowly Possible Cause Explanation and Corrective Action Small leak in pneumatic system Check blood pressure cuff tubing and pressure hose for leaks. Battery voltage check 1. Follow the steps in “Connections” on page 25. 2. Set the power supply to 6.5 Vdc (+0/-0.25 Vdc). 3. Use a DMM to check the battery voltage. If the voltage is less than 6.0 Vdc, charge the battery.
34 Troubleshooting Welch Allyn Spot Vital Signs 3. Power off Spot Vital signs and enter the Configuration Mode (see “Internal configuration mode” on page 20). 4. Press the Mode button until Cal displays in the LCD window. 5. Press the Start button to close the valve and use the bulb to manually inflate the device to 250 mmHg and confirm Spot Vital Signs meets the leak test specification (see “Leak test” on page 73).
Service Manual Troubleshooting 35 3. Connect to the 500 cc cylinder. 4. Select Test > Calibration in the repair software. The dialog box displays the Spot Vital signs manometer reading, battery reading, and valve and pump status. 5. Push the Blood Pressure Start/Stop button to close the valve. 6.
36 Troubleshooting Welch Allyn Spot Vital Signs 2. Select Test > Button Test in the Spot Vital Signs Repair Software and press each button on Spot Vital Signs while verifying that the computer acknowledges each button in the Button Pressed display. 3. Select Ok to exit the dialog box. Interface test 1. Follow the steps in “Connections” on page 25. 2. Select Test > Display in the Spot Vital Signs Repair Software to confirm the Window Display shows all of the segments. 3.
Service Manual Troubleshooting 37 Pneumatic tests 1. Follow the steps in “Connections” on page 25. 2. Attach the test system to the 100 cc cylinder. Select Test > Pneumatic > Leak Test. The software tests for leaks and provides a Pass or Fail indication. 3. Attach the test system to the 500 cc cylinder. Select Dump Test . The software tests for the dump speed and provides a Pass or Fail indication. 4. Attach the test system to the 250 cc cylinder. Select Inflation Test.
38 Troubleshooting Welch Allyn Spot Vital Signs Service work checklist Spot Vital Signs Model Number Serial Number Test BP Cycle Count Test Data Technician Pass/Fail Date Test Specification Unit SW Version SPO2 SW Version Thermometry SW Version Unit Pressure @ 0 mmHg +/- 1 mmHg Unit Pressure @ 50 mmHg +/- 1 mmHg Unit Pressure @ 150 mmHg +/- 1.5 mmHg Unit Pressure @ 250 mmHg +/- 2.0 mmHg Test Voltage @ 5.5 V +/- 0.1 VDC Current Test – Sleep State < 0.
39 6 Disassembly and repair This chapter provides the instructions for removing and replacing serviceable modules in the Spot Vital Signs. Unless otherwise noted, re-assembly procedures are the reverse order of the disassembly procedures. WARNING Electric shock hazard. There are no user-serviceable parts inside Spot Vital Signs other than battery replacement (see “Battery removal and replacement” on page 70). An operator may only perform maintenance procedures specifically described in this manual.
40 Disassembly and repair Description Welch Allyn Spot Vital Signs Part Number Cable Tie Tool Source Tool/Supply Store Setra Pressure Meter (1-10 PSIG) 2270-01 Setra +1 800 257 3872 Netech Pressure Meter 20-200IN Netech +1 800 547 6557 Masimo SpO2 Tester 11593 Masimo +1 800 326 4890 Masimo Extension Cable - 4 ft PC-04-WA Masimo +1 800 326 4890 Nellcor Patient Simulator SRC-2 for MP205 Nellcor +1 800 6355267 Nellcor Patient Simulator SRC-MAX for MP506/NELL-3 Nellcor +1 800 635 5267 N
Service Manual Disassembly and repair 41 Temperature disassembly Follow the previous steps and then: 1. Remove the three #10 Torx screws from the temperature housing. 2. Roll the temperature housing toward the top of the Spot Vital Signs and carefully lay it on the bench. LEAD ACID BATTERY Model No. 4200-B4 Temperature Housing Temperature PCB 3. Unplug the flex cable from the connector on the temperature PCB. 4. Remove the two #10 Torx screws from the temperature PCB from the temperature housing. 5.
42 Disassembly and repair Welch Allyn Spot Vital Signs Front housing and key pad disassembly Follow all the previous steps and then: 1. Remove the two screws inside the battery housing that are identified with arrows molded into the housing and the two screws underneath the temeprature housing. 2. Hold the device together and lay the back housing on the bench. 3. Carefully roll the front housing to the right. 4. Disconnect the tubing from the front housing.
Service Manual Disassembly and repair 43 Power and battery cable disassembly Follow all the previous steps and then: 1. Push down on the tab that connects the power cable to the main PCB and pull it toward the bottom of the Spot Vital Signs. Ferrite Bead Power cable to main PCB connection Wire tie 2. Lift the ferrite from its holder. 3. Use a 3/8” Hex socket to remove the nut from the outside of the transformer connector. Slide the cable through the rear housing opening. 4.
44 Disassembly and repair Welch Allyn Spot Vital Signs Main printed circuit board assembly Follow all the previous steps and then: 1. Remove the pneumatic tubing from the transducer on the main PCB. Torx Screws Battery/Valve Connector Pneumatic Tubing 2. Remove the battery/valve cable connector from the bottom of the PCB. 3. Remove the 4 #10 Torx screws from the PCB. 4. Lift Main PCB from housing.
Service Manual Disassembly and repair 45 SpO2 circuit board disassembly Note To assure proper SpO2 operation, replace the SpO2 board using only the Welch Allyn specified part. To assure patient electrical isolation, after the main board is nearly back in position, verify that the SpO2 flex cable is freely floating and not pressed up against the main board. Follow all the previous steps and then: Masimo board 1. Remove the copper tape and unfold the shielding.
46 Disassembly and repair Welch Allyn Spot Vital Signs Masimo 4. Remove the 2 screws and lift the board and shielding off the standoffs. This exposes insulating paper. 5. Verify the paper is properly aligned before re-installing the shielding and the new PCB assembly. Alignment Holes When reassembling, lay the shielding on top of the insulating paper and then replace the board. Verify shielding lays over top of standoff after folding.
Service Manual Disassembly and repair 47 Nellcor board Follow all the previous steps and then: 1. Remove the three phillips head screws along with the nuts and spacers from the SpO2 PCB. Phillips screws Spacers (3 places) 2. Remove the SpO2 module (Nellcor MP205) from the main PCB. Note If a failure occurs in the MP205 PCB (obsolete), update to a Nell-3 PCB (704870) and update the Main PCB (403290). The new Main PCB (403290) correctly operates an MP205, an MP506, or a Nell-3 PCB.
48 Disassembly and repair Welch Allyn Spot Vital Signs Pump and valve disassembly Note For proper blood pressure operation, replace the pump using only the Welch Allyn specifed part. To assure patient electrical isolation, do not modify the length of the pump wires. Follow all the previous steps and then: 1. Disconnect the pneumatic tubing from the valve and pump. Pneumatic Tubing (valve) Torx Screws Wire Tie Pneumatic Tubing (pump) 2. Cut the wire tie and remove the two Torx screws. 3.
Service Manual Disassembly and repair 49 To upgrade the pneumatic tubing: 1. Verify you have two pieces of silicon tubing 1.5 inches in length (421051-11) and one elbow fitting (703843) available. 2. Remove the 4.4 inch silicon tubing from the “T” fitting. 4.4 inch Silicon Tubing 3. Insert one of the 1.5 inch silicon tubing pieces onto the “T” fitting. 4. Insert the elbow fitting into the 1.5 inch silicon tubing. 5. Insert the second 1.5 inch tubing onto the elbow fitting. 6. Connect the 1.
50 Disassembly and repair Welch Allyn Spot Vital Signs 4. Carefully slide and center the foam sleeve over the NIBP filter. 5. Remove the open-ended tubing from the pump and replace with the pump filter assembly. Confirm proper pump fitting.
51 7 Technical overview System description The Spot Vital Signs automatically measures systolic and diastolic blood pressure, pulse rate, pulse oximetry (SpO2), and temperature (oral, axillary under 4 years, and rectal) for adult and pediatric patients (excluding neonates). The device is intended to be used by clinicians and medically qualified personnel. It is available for sale only upon the order of a physician or licensed health care provider.
52 Technical overview Welch Allyn Spot Vital Signs Mod B NIBP power The main board contains the circuitry required for blood pressure measurement. The main CPU controls the battery power to this module through a +5V linear regulator (U6). In the event of a critical blood pressure module error, the main CPU disconnects power from the ModB module through the BPEN signal at Q11.
A B C 5 LCD MODULE LCD/BUTTONS SHIELD SHIELD 11 10 J305 SPO2_2 NC RXD TXD MD1 MD0 6 8 9 5 4 U311 HSDL-3610#007 4 JP23 PUMP / VALVE J307 LCD CONNECTOR +5V PUMP D308 10MQ100N INTERNAL TRACES CONNECTING PATIENT SENSOR TO SPO2 MODULE AIR FILTER IR COMM PORT FFC LCD / BUTTON RIBBON CABLE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 J307 J306 DB_9 VCC 1 D SPO2 DB9 TO PATIENT SENSOR LEDA 10 GND 7 GND 3 1 2 3 4 5 6 7 8 9 2 11 AGND SHIELD J304 SPO2_1 VREG F301 FUSE 5A TP TP1
54 Technical overview Welch Allyn Spot Vital Signs
55 8 Field replaceable units If a Version 1 (serial number less than 200705000) is sent in for updates or repair to the main printed circuit board, it is necessary to upgrade the keypad and front housing/bezel assembly. The Spot Vital Signs is then referred to and functions as a Version 2. See Table 1 on page 1 for the specific version differences. The following lists identify the available FRUs for Spot Vital Signs. To order an FRU, contact Welch Allyn Technical Support. Table 17.
56 Field replaceable units Welch Allyn Spot Vital Signs Table 18.
Service Manual Field replaceable units Table 18. Spot Vital Signs Repair Parts List Description Part Number Label, SureTemp Technology 70999-0000 Detachable Power Cord, Aust 400627 Detachable Power Cord, Swiss 761076-8 Detachable Power Cord, South America 761076-9 Foam Strip 78P567 1vb Label Blank 1” x 4” 900242-8 Screw 2-28 .
58 Field replaceable units Welch Allyn Spot Vital Signs Table 18. Spot Vital Signs Repair Parts List Description Part Number Battery, sub-assembly 421002-501 Transformer, 120VAC/60 Hz, 8 Vdc 5200-101A Transformer, 220VAC/50 Hz, 8 Vdc 5200-103A Calibration key, temperature probe calibration 5200-25 Power cord (Europe) 76402 Power cord (UK) 76404 Patent label, Masimo, Version 2 only 704608 Screw 4-20 .
59 9 Specifications Consider the accessories connected to the Spot Vital Signs as Type BF applied parts. Patient population The Welch Allyn Spot Vital Signs is designed for use with adult and pediatric patients. Welch Allyn defines a pediatric patient as 29 days or more of age. THE WELCH ALLYN SPOT VITAL SIGNS IS NOT INTENDED FOR USE ON NEONATES. Welch Allyn defines neonates as children 28 days or less of age, born at term (37 weeks gestation or more), otherwise up to 44 gestational weeks.
60 Specifications Welch Allyn Spot Vital Signs Pulse pximetry Masimo sensor accuracy guide Accuracy specified when used with Masimo SET pulse oximetry monitors or with licensed Masimo SET pulse oximetry modules using Masimo patient cables, during no motion. Numbers present ± 1 standard deviation. Plus or minus one standard deviation represents 68% of the population. SpO2 accuracy from 70% to 100%. Pulse rate accuracy from 25 to 240 bpm. This accuracy guide only affects Version 2.
Service Manual Specifications 61 Nellcor® sensor accuracy guide Accuracy specifications are based on controlled hypoxia studies with healthy, non-smoking adult volunteers over the specified saturation SpO2 range. Pulse oximeter SpO2 readings were compared to SaO2 values of drawn blood samples measured by hemoximetry. All accuracies are expressed as + “X” digits. This variation equals plus one standard deviation (+ 1 SD), which encompasses 68% of the population.
62 Specifications Welch Allyn Spot Vital Signs Nellcor patents Covered by one or more of the following US Patents: 4,802,486; 4,869,254; 4,928,692; 4,934,372; 5,078,136; 5,351,685; 5,485,847; 5,533,507; 5,577,500; 5,803,910; 5,853,364; 5,865,736; 6,083,172; 6,708,049; Re. 35,122 and foreign equivalents. Mechanical Dimensions Weight Mounting Portability Height: 9.7 inches (24.6 cm) Length: 5.7 inches (14.5 cm) Depth: 4.7 inches (12.0 cm) Approximately 4.6 pounds (2.
Service Manual Specifications 63 Guidance and manufacturer’s declaration Emissions and immunity information Electromagnetic Emissions The Spot Vital Signs is intended for use in the electromagnetic environment specified below. The customer or user of the Spot Vital Signs should assure that it is used in such an environment. Emissions Test Compliance Electromagnetic Environment - Guidance RF emissions Group 1 The Spot Vital Signs uses RF energy only for its internal function.
64 Specifications Welch Allyn Spot Vital Signs Electromagnetic Immunity The Spot Vital Signs is intended for use in the electromagnetic environment specified below. The customer or user of the Spot Vital Signs should assure that it is used in such an environment. Immunity Test IEC 60601 Test Level Compliance Level Electromagnetic Environment - Guidance Electrostatic discharge (ESD) ± 6 kV contact ± 6 kV contact ± 8 kV air ± 8 kV air Floors should be wood, concrete, or ceramic tile.
Service Manual Specifications 65 Electromagnetic Immunity The Spot Vital Signs is intended for use in the electromagnetic environment specified below. The customer or user of the Spot Vital Signs should assure that it is used in such an environment.
66 Specifications Welch Allyn Spot Vital Signs Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the Spot Vital Signs The Spot Vital Signs is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
Service Manual Specifications 67 Identification label and serial numbering system The identification label for the Spot Vital Signs is located on the bottom of the device. The serial number format has 9-digits. The first 4 numbers state the year of manufacture and the last 5 numbers state the Spot Vital Signs manufacturing number. Therefore, 200608000 means the 8000th Spot Vital Signs manufactured in the year 2006.
68 Specifications Welch Allyn Spot Vital Signs
69 10 Maintenance Cleaning Spot Vital Signs Caution Do not use ethyl alcohol to clean the Spot Vital Signs device. Caution Do not sterilize or autoclave the Spot Vital Signs. Occasionally wipe the Spot Vital Signs, as necessary, with a cloth slightly dampened with appropriately diluted, non-staining disinfectant solution. Use either 70% isopropyl alcohol, 10% chlorine bleach solution, or mild detergent in warm water. Never immerse the Spot Vital Signs in any type of fluid.
70 Maintenance Welch Allyn Spot Vital Signs Temperature probe Periodically wipe the temperature probe clean with an alcohol-dampened cloth, warm water, or properly diluted, non-staining disinfectant. Do not immerse the probe. SpO2 sensor WARNING Do not immerse the sensor in water, solvents, or cleaning solutions (the sensors and connections are not waterproof). Do not use irradiation, steam, or ethylene oxide for sterilization.
Service Manual Maintenance 71 4. Slide the new battery completely into the compartment. Lay the connector on the battery. The relief pocket in the battery door purposely provides sufficient clearance for the battery connector. Relief Pocket Battery Battery Connector 5. Replace the battery door and tighten each of the 4 screws. 6. Connect the AC power transformer to the Spot Vital Signs and charge the new battery for 16 hours. It is possible to use the Spot Vital Signs during this charging period.
72 Maintenance Welch Allyn Spot Vital Signs
73 A Repair test specifications This appendix refers to the Spot Vital Signs without pneumatics (tubing and cuff), temperature probe, SpO2 probe, or main battery attached, unless otherwise noted. Use the Repair Software for the performing the tests on the Spot Vital Signs. The standard test voltage, unless otherwise stated is 6.5 Vdc (+0/-0.25 Vdc). Unless otherwise stated, all calibrated volumes are ±10cc of the stated volume. Unit software for the Spot Vital Signs is equal to or greater than "1.
74 Repair test specifications Welch Allyn Spot Vital Signs Pneumatic calibration Note Do not calibrate the Spot Vital signs if the internal temperature is greater than 89.9° F (32° C). Calibrate the Spot Vital Signs with 0 and 250 mmHg applied to the pressure port with the following algorithm: Adjust the pressure calibration offset value with the following formula. ((Last auto zero pressure value + current Unit pressure) ( 16384) / (pressure offset correction value + pressure gain correction value).
Service Manual Repair test specifications 75 Back light (Idle) current test The Back Light Current Test is defined as the amount of current drawn through the battery. All LCD segments and the back light are turned on while the SpO2 mode is turned off. The limit is 400 mA maximum. Valve/pump mode current test The Valve/Pump Mode Current Test is defined as the amount of current that is drawn through the battery terminals; Spot Vital Signs is in the Blank Mode while the valve and pump are actuated to on.
76 Repair test specifications Welch Allyn Spot Vital Signs Mode, actuating the SpO2 mode and applying any SpO2 signal to the device. The maximum limit is 120 mA maximum. Fail safe test Over pressure test Verify that Spot Vital Signs can detect over pressure on the pneumatic system between 296.0 mmHg and 329 mmHg. Over 15 mmHg Verify that Spot Vital Signs can detect static pressure over 15 mmHg for 180 seconds.
77 B Supplies and Accessories Latex-free blood pressure Table 1. Cuff and Bag Combination Catalog # Description Catalog # Description 5200-01 Cuff and bladder, adult, one tube 5200-10 Cuff and bladder, thigh, one tube 5200-02 Cuff and bladder, large adult, one tube 5200-03 Cuff and bladder, child, one tube Table 2.
78 Supplies and Accessories Welch Allyn Spot Vital Signs Pulse oximetry accessories and supplies Masimo Table 5.
Service Manual Supplies and Accessories Nellcor Table 8. OxiMax Adhesive Sensors: Single-patient use Catalog # Description Weight Range Quantity MAX-AI Adult sensor >30 kg 24 MAX-PI Pediatric sensor 10 - 50 kg 24 MAX-II Infant sensor 3-20 kg 24 MAX-RI Adult nasal sensor >50 kg 24 Weight Range Quantity SRC-MAX Portable oximetry tester Table 9.
80 Supplies and Accessories Welch Allyn Spot Vital Signs Temperature Table 12. Accessories and Supplies Catalog # Description Catalog # Description 02678-100 Oral/axillary probe (9ft./2.7M) 05031-110 Disposable probe covers (10,000 covers, 25/box) 02679-100 Rectal probe (9ft./2.7M) 06137-000 Temperature Calibration Key 05031-101 Disposable probe covers (1,000 covers, 25/box) 01802-110 Model 9600 Plus Calibration Tester Mounting Table 13.
Service Manual Supplies and Accessories 81 Miscellaneous Table 15.
82 Supplies and Accessories Welch Allyn Spot Vital Signs
83 C Miscellaneous Mounting Accessories Wall mount kit (REF 4200-62) Caution Attach Bracket to wall before assembling basket. See Directions for Use. Welch Allyn is NOT responsible for the integrity of any Wall or IV pole mounting interface. Welch Allyn recommends that the customer contact their Biomedical Engineering department or maintenance service to ensure professional installation, safety, and reliability of any mounting accessory. 2. 1. . 5. 3. Attach bracket to wall before assembling basket.
84 Miscellaneous Mounting Accessories Welch Allyn Spot Vital Signs Mobile stand kit (REF 4200-60) 3. . 4.25 lbs 1.93 Kg 5. 2. LOAD 1.
Service Manual Miscellaneous Mounting Accessories 85 IV pole mount accessory (REF 4200-64) Caution Welch Allyn is NOT responsible for the integrity of any Wall or IV pole mounting interface. Welch Allyn recommends that the customer contact their Biomedical Engineering department or maintenance service to ensure professional installation, safety, and reliability of any mounting accessory 2. 1. . 3.
86 Miscellaneous Mounting Accessories Welch Allyn Spot Vital Signs Anti-theft kit (REF 4200-70) (1) A B (1) B (1) - 5/6 A
Service Manual Miscellaneous Mounting Accessories Transformer mounting plate accessory (REF 4200-75) The Transformer Mounting Plate Kit Plate 2. Slide the Spot Vital Signs onto the mounting plate and start integral screw into brass nut located on the back of the Spot unit. Wire Clamp Brass Nut 1. Align the bottom of the Spot Vital Signs with the mounting plate. 3. Tighten the integral screw until snug. Do not overighten. Verify the Spot Vital is fastened securely to the transformer mounting plate.
88 Miscellaneous Mounting Accessories Welch Allyn Spot Vital Signs IR dongle mounting accessory (REF 4200-170) INSTALLATION INSTRUCTIONS: Step 1 - Remove rubber base from IR dongle Step 2 - Place IR dongle into bracket clamps Step 3 - Tighten screws Step 4 - Clean side of device housing using alcohol wipe Step 5 - Remove adhesive protective paper from back of bracket Step 6 - Place bracket flange (A) on device surface (B) and hole in bracket (C) over IR window (D) as shown.
89 Warranty Spot Vital Signs Welch Allyn warrants Spot Vital Signs, when new, to be free of defects in material and workmanship and to perform in accordance with manufacturer's specifications for a period of two years from the date of purchase from Welch Allyn or its authorized distributors or agents. The battery is covered by a one-year warranty against original defects in material or workmanship.
90 Warranty Welch Allyn Spot Vital Signs
Reorder No. 4200-89E Material No.
