AC Tool Supply TA-3EA Service manual

AC Tool Supply TA-3EA Service manual
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.
Welch Allyn assumes no responsibility for any injury to anyone, or for any illegal or improper use of the
product, that may result from failure to use this product in accordance with the instructions, cautions,
warnings, or statement of intended use published in this manual.
Welch Allyn, Spot Vital Signs, SureBP Technology, and SureTemp are registered trademarks of Welch
Allyn.
LNCS is a trademark of, and SET, LNOP, and Masimo are registered trademarks of, Masimo Corporation.
Possession or purchase of a Masimo SpO2-equipped device does not convey any express or implied
license to use the device with unauthorized sensors or cables which would, alone or in combination with
this device, fall within the scope of one or more of the patents relating to this device.
Nellcor and Oxi-Max are registered trademarks of Nellcor Puritan Bennett Inc.
Software in this product is Copyright Welch Allyn or its vendors. All rights are reserved. The software is
protected by United States of America copyright laws and international treaty provisions applicable
worldwide. Under such laws, the licensee is entitled to use the copy of the software incorporated with
this instrument as intended in the operation of the product in which it is embedded. The software may not
be copied, decompiled, reverse-engineered, disassembled, or otherwise reduced to human-perceivable
form. This is not a sale of the software or any copy of the software; all right, title, and ownership of the
software remain with Welch Allyn or its vendors.
For information about any Welch Allyn product, call Welch Allyn Technical Support:
USA +1 800 289 2501
Australia +61 2 9638 3000
Canada +1 800 561 8797
China +86 21 6327 9631
European Call Center +353 46 90 67790
France +33 1 55 69 58 49
Germany +49 695 098 5132
Japan +81 42 703 6084
Latin America +1 305 669 9003
Netherlands +31 202 061 360
Singapore +65 6419 8100
South Africa +27 11 777 7555
United Kingdom +44 207 365 6780
Sweden +46 85 853 6551
Reorder No. 4200-89E
Manual Material No. 718448 Ver A
Welch Allyn
4341 State Street Road
Skaneateles Falls, NY 13153 USA
Printed in USA
EC
REP
Regulatory Affairs Representative
Welch Allyn Limited
Navan Business Park
Dublin Road
Navan, County Meath, Republic of Ireland
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. Removed old PCB
and Old SpO2 PCB and replaced with new Main PCB and New
SpO2 PCB in section 2.4. Changed section 4.7 to cover both Spot
and Spot Extensions SpO2 PCB removal and replacement.
Changed section 5.8 to cover both Spot and Spot Extension SpO2
testing. General Spelling and grammar clean up.
JDB
02/02/03
D
Arden document release to SKF. Updated USA Service Center
contact information.
JDB
DLK
05/01/03
E
Correction to tools required for service. Corrected General
Information phone numbers.
DLK
DLK
09/16/03
F
Updates repair BOM. Updated Accessories. Re-formated manual DLK
to meet Welch Allyn service manual work instructions.
DLK
12/12/03
G
Correction to page numbering and to voltage calibrations. ReDLK
formatted all systems of measurement to meet NIST Standards.
Reformatted Appendix E. Corrected grammar and punctuation.
Revised service and support details in Section 1. Removed
schematics.
RJS
3/9/06
H
Removed references to Nellcor motion tolerance.
AMJ
JPK
3/21/07
J
SAP new version glitch
AMJ
FL
3/21/07
K
Update section on Setting the Date and Time. Include testing and AMJ
disassembly/assembly for the Masimo SpO2 feature and
updated repair parts lists.
FL
2010/11/05
L
Changed part number for SPOT Repair Tool SW CD from 130S57E KMR
to 716948 on pages 39 and 52 . Updated copyright page with
latest service phone numbers and combined Title pages and
Front cover pages.
NEA
2012/04/26
A
New Material Number taken out 718448. CE mark removal
GB
KMR
Drawings and/or illustrations and/or part numbers in this document are for reference only. For the most
current revision call the Welch Allyn Customer Service phone number (see page ii).
iv
Welch Allyn Spot Vital Signs
v
Contents
1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Warnings and cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Blood pressure warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SpO2 warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Temperature warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IR communications port warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Blood pressure cautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SpO2 cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Temperature cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrostatic discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Safety symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Agency symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 - Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Other applicable documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Contents checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Possible attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Technical assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Field replacement units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Service loaners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Service intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Spot Vital Signs configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
LCD (liquid crystal display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Blood pressure hose and cuff connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Temperature probe connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SpO2 sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Quick reference card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DCpower connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Standby mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SpO2 functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4 - Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Voltage calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Blood pressure calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Date/time set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Causes and corrective action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Battery voltage check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Window display check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Blood pressure calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Temperature functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Masimo SpO2 functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Nellcor SpO2 functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Communication option check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Functional testing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Current test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Noise levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Button test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Interface test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Print quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Pneumatic tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Fail safe (over pressure) test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Service work checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6 - Disassembly and repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Battery disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Temperature disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Front housing and key pad disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
LCD disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Power and battery cable disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Main printed circuit board assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
SpO2 circuit board disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Masimo board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Nellcor board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Pump and valve disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7 - Technical overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
System description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Battery /charge system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Service Manual
Contents
vii
Main CPU power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Clock/calendar power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Mod B NIBP power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Thermometer power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
SpO2 power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
LCD power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Interconnect diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8 - Field replaceable units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9 - Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Patient population . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Blood pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Pulse pximetry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Masimo sensor accuracy guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Masimo patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Nellcor® sensor accuracy guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Nellcor patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Environmental. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Guidance and manufacturer’s declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Emissions and immunity information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Identification label and serial numbering system . . . . . . . . . . . . . . . . . . . . . . . . 67
Firmware identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10 - Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Spot Vital Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Blood pressure cuff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Cables and pressure hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Temperature probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
SpO2 sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Battery removal and replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Masimo SpO2 calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Nellcor SpO2 functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
SpO2 accessory disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Temperature calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
A - Repair test specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
General unit test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
A-D noise test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Inflation test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Dump test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Back light (Idle) current test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Valve/pump mode current test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Interface test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Temperature option requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Accuracy test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Temperature probe test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
SpO2 option requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
SpO2 functional test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
SpO2 mode current test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Fail safe test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Over pressure test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Over 15 mmHg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
B - Supplies and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Latex-free blood pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Pulse oximetry accessories and supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Masimo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Nellcor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Extended warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
C - Miscellaneous Mounting Accessories. . . . . . . . . . . . . . . . . . . . . . . 83
Wall mount kit (REF 4200-62) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Mobile stand kit (REF 4200-60). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
IV pole mount accessory (REF 4200-64). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Anti-theft kit (REF 4200-70) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Transformer mounting plate accessory (REF 4200-75). . . . . . . . . . . . . . . . . . . . 87
IR dongle mounting accessory (REF 4200-170) . . . . . . . . . . . . . . . . . . . . . . . . . 88
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Spot Vital Signs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
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. Version comparison
Function/Appearance
Available option
Available SpO2 capability
Bezel and switch array color
Version 1
(serial number less than
200705000)
Version 2
(serial number 200705000
and above)
Print
Pressure Preset
Nellcor
Masimo or Nellcor
Black bezel/multi-colored
switch array
Blue
Warnings and cautions
Familiarize all operating personnel with the general safety information in this summary.
Specific warnings and cautions are also found throughout this manual. Such specific
warnings and cautions may not appear here in this summary.
General warnings
A warning statement in this manual identifies a condition or practice, which if not
corrected or discontinued immediately, could lead to patient injury, illness, or death.
WARNING The Welch Allyn Spot Vital Signs is designed for use by medical
clinicians. Although this manual may illustrate medical spot check techniques,
only a trained clinician who knows how to take and interpret a patient’s vital signs
should use this system.
WARNING The information in this manual is a comprehensive guide to the
operation of the Welch Allyn Spot Vital Signs. To achieve satisfactory results, you
should read the manual thoroughly before attempting to use the device.
WARNING Spot Vital Signs is not intended to take measurements on neonatal
patients. The AAMI SP10:1992 standard defines neonates as children 28 days or
less of age if born at term (37 weeks gestation or more); otherwise up to 44
gestational weeks.
WARNING The Welch Allyn Spot Vital Signs is not defibrillator proof.
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.
WARNING This device is not suitable for use in the presence of a flammable
anesthetic mixture with air or oxygen or nitrous oxide. An explosion may result.
WARNING Avoid compression of the blood pressure cuff tubing or pressure
hose of the Welch Allyn Spot Vital Signs. Compression of the cuff tubing or
pressure hose may cause system errors to occur in the device.
WARNING Care should be taken to prevent water or other fluid from entering
any connectors on the device. Should this occur, the connectors should be dried
with warm air. All operating functions should then be checked for proper
operation.
WARNING Any Spot Vital Signs which has been dropped or damaged should be
checked by qualified service personnel to ensure proper operation prior to use. Do
not use the Welch Allyn Spot Vital Signs if you notice any signs of damage.
Contact the Welch Allyn Customer Service Department for assistance.
WARNING Every three months, inspect the temperature probe, SpO2 cord, and
accessories for fraying or other damage. Replace as necessary.
WARNING There are no user-serviceable parts inside the device other than
battery replacement. Refer Spot Vital Signs to the Authorized Service Center.
WARNING The Spot Vital Signs should not be used on patients who are linked
to heart/lung machines.
WARNING The Spot Vital Signs does not operate effectively on patients who are
experiencing convulsions or tremors.
WARNING This device complies with current required standards for
electromagnetic interference and should not present problems to other
equipment or be affected by other devices. As a precaution, avoid using this
device in close proximity to other equipment.
WARNING This device is not intended for hand-held use during operation.
WARNING Welch Allyn recommends leaving the battery in the device,
regardless if the device is not used for long periods of time, since there is no
hazard of leaving the battery in the device.
WARNING Do not autoclave.
WARNING Welch Allyn is not responsible for the integrity of any mounting
installation. Welch Allyn recommends that the customer contact their Biomedical
Engineering Department or maintenance service to ensure professional
installation for safety and reliability of any mounting accessory.
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.
WARNING You may experience inaccurate blood pressure measurements if
blood pressure cuffs and/or hoses other than those provided by Welch Allyn for
the Spot Vital Signs are used.
WARNING Patients who are experiencing moderate to severe arrhythmias may
give inaccurate blood pressure measurements.
WARNING When several blood pressure measurements are taken on the same
patient, it is recommended that the blood pressure cuff site and extremity are
checked regularly for possible ischemia, purpura, and/or neuropathy.
WARNING Do not change the connector(s) on the blood pressure cuff tubing of
this device to luer type. Luer type connectors are commonly used in intravenous
infusion systems. Using the luer connectors on blood pressure cuff tubing
creates the risk that the blood pressure tubing could be mistakenly connected to
a patient's intravenous line, resulting in the introduction of air into the patient's
circulatory system.
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.
WARNING Before use, carefully read the sensor’s directions for use, including
all warnings, cautions, and instructions.
WARNING Do not use a damaged sensor or SpO2 cable. Do not use a sensor
with exposed optical components.
WARNING Tissue damage can be caused by incorrect application or duration of
use of an SpO2 sensor. Inspect the sensor site as directed in the sensor’s
Directions for Use.
WARNING Do not use the sensors during magnetic resonance imaging (MRI)
scanning. Induced current could potentially cause burns. The pulse oximeter may
affect the MRI image, and the MRI unit may affect the accuracy of the pulse
oximetry measurements.
WARNING Certain ambient environmental conditions, sensor application errors,
and certain patient conditions may affect SpO2 readings and pulse signal.
WARNING Do not immerse the sensor or patient cables in water, solvents, or
cleaning solutions (the sensors and connections are not waterproof). Do not use
irradiation, steam, or ethylene oxide for sterilization.
WARNING Do not use the SpO2 cable or power cord to lift the unit because the
cable or cord could disconnect from the unit, causing the unit to drop on the
patient.
WARNING The SpO2 in the Welch Allyn Spot Vital signs is not intended for use
as an apnea monitor.
WARNING Consider the SpO2 an early warning device. As a trend toward
patient deoxygenation is indicated, use laboratory instruments to analyze blood
samples to completely understand the patient’s condition.
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.
WARNING Do not allow the tip of the temperature probe to come into contact
with any heat source (e.g., hands or fingers) prior to taking a temperature
measurement. If this occurs, discard the probe cover and start the temperature
determination again.
WARNING Long-term continuous monitoring beyond three to five minutes is
not recommended in any mode.
IR communications port warnings
WARNING The Welch Allyn Spot Vital Signs contains an infrared
communications port for isolated communications with external devices. The port
is located on the side of the device to preclude direct eye contact on a continual
basis when viewing the display. As a precaution, do not look directly into the
infrared port during operation.
General cautions
A caution statement in this manual identifies a condition or practice, which if not
corrected or discontinued immediately, could lead to equipment failure, equipment
damage, or data loss.
Caution If the accuracy of any measurement is in question, check the patient's
vital sign(s) by an alternate method, then check to make sure the device is
functioning properly.
Caution Ensure the device is placed on a secure surface or use one of the
optional mounting accessories.
Caution Do not place fluids on the device.
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 (2.5 cm) below heart level.
Caution Proper blood pressure cuff size and placement is essential to the
accuracy of the blood pressure determination.
Caution When measuring blood pressure on children younger than 3 years of
age, it is recommended that the Pressure Preset (initial inflation pressure) be set
at 160 mmHg or lower.
SpO2 cautions
Caution The pulse oximeter is calibrated to determine the percentage of
arterial oxygen saturation of functional hemoglobin. Significant levels of
dysfunctional hemoglobin such as carboxyhemoglobin or methemoglobin may
affect the accuracy of the measurement.
Caution Physiological conditions, medical procedures, or external agents that
may interfere with the pulse oximeter’s ability to detect and display
measurements include dysfunctional hemoglobin, arterial dyes, low perfusion,
dark pigment, and externally applied coloring agents such as nail polish, dye, or
pigmented cream.
Caution Some sensors may not be appropriate for a particular patient. If at least
15 seconds of perfusion pulses cannot be observed for a given sensor, change
sensor location or sensor type for perfusion to resume.
Caution When selecting a sensor, consider the patient’s weight and activity
level, the adequacy of perfusion, the available sensor sites, the need for sterility,
and the anticipated duration of monitoring.
Temperature cautions
Caution The Welch Allyn Spot Vital Signs is FDA cleared to measure the axillary
temperature in Normal Mode for children under the age of 4. Normal Mode
axillary temperatures may not be accurate on older children or adults. THE
WELCH ALLYN SPOT VITAL SIGNS IS NOT INTENDED TO BE USED ON
NEONATAL PATIENTS.
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.
Electronic components and assemblies, if not properly protected against ESD, can be
permanently damaged or destroyed when near or in contact with electrostatically charged
objects. When you handle components or assemblies that are not in protective bags and
you are not sure whether they are static-sensitive, assume that they are static-sensitive
and handle them accordingly.
•
Perform all service procedures in a static-protected environment. Always use
techniques and equipment designed to protect personnel and equipment from
electrostatic discharge.
•
Remove static-sensitive components and assemblies from their static-shielding bags
only at static-safe workstations - a properly grounded table and grounded floor mat and only when you are wearing a grounded wrist strap (with a resistor of at least 1
megohm in series) or other grounding device.
•
Use only grounded tools when inserting, adjusting, or removing static-sensitive
components and assemblies.
•
Remove or insert static-sensitive components and assemblies only with monitor
power turned off.
•
Insert and seal static-sensitive components and assemblies into their original staticshielding bags before removing them from static-protected areas.
Always test your ground strap, bench mat, conductive work surface, and ground cord
before removing components and assemblies from their protective bags and before
beginning any disassembly or assembly procedures.
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.
Do not dispose of this product as unsorted municipal waste. Prepare this product for reuse or
separate collection as specified by Directive 2002/96/EC of the European Parliament and the
Council of the European Union on Waste Electronic and Electrical Equipment (WEEE). If this
product is contaminated, this directive does not apply.
For more specific disposal information, see www.welchallyn.com/weee,
or contact Welch Allyn Customer Service at +44 207 365 6780.
Mode of Operation: Continuous
CERTIFIED TO:
CAN/CSA STD C22.2 NO. 601.1
C
US
166292
CONFORMS TO:
UL STD 60601-1
IEC 60601-1
The CE mark on this product indicates that it has been tested to and conforms with
the provisions noted within the 93/42/EEC Medical Device Directive.
0297
EC
REP
European Regulatory Manager
Welch Allyn Ltd.
Navan Business Park • Dublin Road • Navan, County Meath, Republic of Ireland
Tel.: +353 46 90 67700 • Fax: +353 46 90 67756
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.
This manual is intended for the technical qualified service person. Service training classes
on Welch Allyn’s products are available. Contact Welch Allyn Technical Service for
information.
Other applicable documents
The Spot Vital Signs Directions for Use manual is also available. Refer to this document for
information other than maintenance and repair.
Welch Allyn 9600 Plus Calibration Tester Directions for Use - for all models.
Masimo Directions for Use - for models 42M0B and 42MTB
Nellcor Directions for Use - for models 42N0B and 42NTB
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. Options include thermometry and pulse oximetry.
Directions for Use Manual. Read this manual thoroughly before using Spot Vital Signs.
Save this manual for reference.
Warranty Card. This card validates the Spot Vital Signs warranty. Fill out the warranty
card and mail it today.
Blood Pressure Cuff. Latex free blood pressure cuff with connectors. Other size cuffs are
available separately.
Blood Pressure Hose. Latex-free pressure hose with connectors to attach various sizes of
blood pressure cuffs to the Spot Vital Signs.
AC Power Transformer and Cord Assembly. Provides power to the Spot Vital Signs and
charges the internal battery.
Quick Reference/Error Code Card. Attach this quick operating and error code guide to
the device handle, mobile stand, or wall mount.
Possible attachments
Spot Vital Signs may include the following items based on the model and accessories
purchased:
SureTemp Temperature Probe and Covers. One oral temperature probe (blue cap) and
one box of 25 single-use, disposable probe covers.
Pulse Oximetry (SpO2). The finger clip SpO2 sensor and extension cable are for use
with adult and pediatric patients. Other sensors are available separately.
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. Technical service telephone support is available on
normal business days.
If you are advised to return a product to Welch Allyn for repair or routine maintenance,
schedule the repair with the service center nearest you.
Before returning a product for repair, you must obtain authorization from Welch Allyn.
Service personnel will give you a Service Notification number. Returns without a Service
Notification number will not be accepted for delivery.
If you need to return the Spot Vital Signs for service:
•
Remove all hoses, cables, sensors, power cords, and any ancillary products not
associated with the problem.
•
Whenever possible, use the original shipping carton and packing materials.
•
Include a packing list and the Welch Allyn Service Notification number.
•
Note the Service Notification number on the outside of your shipping container.
It is recommended to insure all returned goods. The sender may initiate any claims for
loss or damage to the product.
Field replacement units
Included with the Service Manual is a complete list of field replacement units. Order
spare parts from your local Welch Allyn Service Center.
Service loaners
Service loaners are provided, on request, if a Welch Allyn Service Center provides repair
service. Loaners for products repaired while under the original warranty, or while under
service contract, are provided free of charge and are shipped within 48 hours of
notification of need.
For service repairs outside of warranty or contract, loaners are available for a nominal
charge and shipment is subject to availability. Loaners are shipped pre-paid; however, this
charge is added to the service charges.
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. Available Versions of Spot Vital Signs
REF
Description
4200B
Spot Vital Signs with blood pressure only
420TB
Spot Vital Signs with blood pressure and SureTemp thermometer
42MOB
Spot Vital Signs with blood pressure and Masimo SpO2*
42NOB
Spot Vital Signs with blood pressure and Nellcor SpO2
42MTB
Spot Vital Signs with blood pressure, SureTemp thermometer, and Masimo SpO2 *
42NTB
Spot Vital Signs with blood pressure, SureTemp thermometer, and Nellcor SpO2
* Version 2 configurations only.
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.
SpO2
Printer: press to print the
measurements (Version 1 only).
min
Blood Pressure Start/Stop Button:
initiates a new blood pressure cycle.
Pressing again cancels an active blood
pressure measurement and deflates the cuff.
M
P
C
Mode Button:
• holding for 2 seconds while
the display is active turns off/on
the backlight.
• in Standby Mode, recalls the
last patient information.
• with the temperature probe
removed from the probe holder,
switches the temperature from
Oral to Axillary Mode.
MODE
Pressure Hose Connector: port for blood
pressure hose.
Power Button: controls power to the device.
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.
min
Pressure Preset Button: press
to change the factory inflation
default for one reading (Version 2
only).
Mode Button:
• holding for 2 seconds while
the display is active turns off/on
the backlight.
• in Standby Mode, recalls the
last patient information.
• with the temperature probe
removed from the probe holder,
switches the temperature from
Oral to Axillary Mode.
Blood Pressure Start/Stop Button:
initiates a new blood pressure cycle.
Pressing again cancels an active blood
pressure measurement and deflates the cuff.
Spot Vital Signs
Pressure Hose Connector: port for blood
pressure hose.
Power Button: controls power to the device.
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.
SpO2
Systolic and Diastolic display:
if MAP is turned on, the screen
toggles between the systolic and
diastolic values, and the word
“MAP” and the MAP value.
SpO2 Display: shows the percent saturation of arterial
hemoglobin (for devices with SpO2 only).
Pulse Display: shows the pulse rate.
Measurement Indicator:
displays the blood
pressure, SpO2, or
temperature icon as Spot
Vital Signs is taking the
respective measurement.
min
M
P
Temperature Display and Indicator: shows the
temperature in Fahrenheit or Celsius (for devices with
SureTemp only).
Monitor Mode Temperature: indicates the thermometer is
in Monitor Mode (for devices with SureTemp only).
Out-of-range indicator: shows the patient’s temperature
reading above or below the measurement range limits (for
devices with SureTemp only).
Thermometer Mode icon:
shows temperature mode (for
devices with SureTemp only).
Icon not used.
Temperature Probe Problem:
indicates a temperature probe problem
(for devices with SureTemp only).
Battery Level indicator: displays the battery charge level.
Battery Charging: indicates the device is
powered through the AC power transformer.
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).
Suretemp Thermometer
Connection Port (for
devices with SureTemp only).
IR Data Interface:
Port for
communicating with
an external device.
Battery Door
DC Power
Connection Port
Threaded Insert: to mount the
Spot Vital Signs to a mobile stand.
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. Join the other end of the pressure hose to the blood pressure cuff pneumatic tubing.
Twist the connectors together until finger-tight. DO NOT OVERTIGHTEN.
Temperature probe connection
The Welch Allyn Spot Vital Signs is available with two probes — one for oral/axillary
temperatures (blue cap), and one for rectal temperatures (red cap). The rectal probe is an
accessory item that is ordered separately.
Press down on the tab on top of the connector and insert the connector into the
temperature probe connector port on the back of the Spot Vital Signs. The probe
connector only fits into Spot Vital Signs one way. Verify the connector clicks into place.
Insert the temperature probe into the probe holder on the top of the Spot Vital Signs.
To remove the temperature probe, press down on the connector tab and lift out.
SpO2 sensor
Spot Vital Signs is available with a wide variety of SpO2 sensors and ships with a reusable
finger sensor and extension cable. All other sensors are accessory items that are sold
separately.
1. Align the shape and pin configuration of the extension cable connector to the SpO2
cable connection port on the top side of the Spot Vital Signs device.
2. Push the connector firmly into the SpO2 cable connection port.
3. Align the opposite end of the extension cable to the sensor cable connector and
firmly push them together.
Note
Use only Masimo or Nellcor SpO2 sensors and accessories with the Spot Vital
Signs with Masimo or Nellcor configurations, respectively.
Quick reference card
Attach the Quick Reference Card to the Spot handle, mobile stand, or wall mount using
the supplied plastic cable tie.
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. Insert the line cord into the line connector on the transformer then plug the power
cord on the transformer into the AC main power source to charge the battery.
Charging the battery
CHARGE THE BATTERY FOR SIXTEEN (16) HOURS PRIOR TO INITIAL USE.
Attach the DC power transformer to the Spot Vital Signs then plug the transformer into
the AC main power source.
While charging, the charger icon remains on and the battery icon segments continuously
sequence. When the battery is fully charged, all battery icon segments display.
As the battery voltage level drops the segments turn off from left to right. If the Spot Vital
Signs is not plugged in to charge when the second last segment is turned off the Spot
Vital Signs issues a warning beep. As the voltage level drops to compromise
measurements an error beep is heard and all other display fields turn off. Spot Vital Signs
beeps at increasingly frequent intervals until it finally powers itself off.
If not used for extended periods of time then recharge the battery.
Standby mode
Standby Mode conserves battery power. When the device is powered up, but has not
been used for 2 minutes, it goes into Standby Mode. “Z Z Z” shows across the top of
the display with no backlight.
To bring the Spot Vital Signs out of Standby Mode, press the Mode or Pressure Preset
button or begin a patient measurement.
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. It
is necessary to disassemble the Spot Vital Signs for calibration.
Always perform this functional verification procedure after performing any calibration. This
procedure contains additional tests that are not included in calibration procedures.
Power on/off and system check procedure
Press the Power button to turn the device on or off. Upon each power up, all the LCD
segments in each display turn on briefly and two beeps sound. If the internal self-check is
successful, the display shows its normal functions (see page 15) and the device is ready
for operation. If the self-check fails, an error code is shown in the on the display.
To turn the unit off, press the Power button.
Note
Turning the unit off erases measurement data.
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. The device enters
the Internal Configuration Mode and displays the software version.
3. Press the Mode button to cycle through the Internal Configuration menu until you see
the menu option displayed on the screen.
4. Use the Next Patient/Clear/Cancel or Blood Pressure Start/Stop button to change
the default setting.
5. Press the Mode button once to save the change and press the Power button to exit
the Internal Configuration Mode.
Table 3. Configuration Menu Options
Setting
Description
Blood Pressure Calibration
Displays “Cal”
Prepares the Spot Vital Signs for calibration. Only qualified personnel should verify the
Spot Vital Signs blood pressure calibration. For more details, see “Blood pressure
calibration” on page 27.
Inflation Pressure Preset Level 120, 140, 160, 180, 200, 240, 280 mmHg. Factory default is 160 mmHg.
Displays “PrP”
Pressure Preset Level
Displays “PrP“
On or off. Disables or enables the front panel Pressure Preset button.
Backlight
Displays “BLT”
On or off.
Mean Arterial Pressure
Displays “MAP”
On or off.
Date/Time
Changes or updates the actual date and time.
Temperature Scale
Displays “TMP MOD”
Fahrenheit (°F) or Celsius (°C) Normal Mode / Fahrenheit (°F) or Celsius (°C) Monitor
Mode
Blood Pressure Units
Displays “BP”
mmHg or kPa.
Battery Readings
Displays “BAT”
Displays the total battery voltage.
Battery Life
Displays “LFE”
Total number unit measurements. Displayed information only; operator cannot change.
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.
Subtract the rated accuracy of the pressure measurement standard from the "3 mmHg
rated accuracy of Spot Vital Signs. This is the pass/fail criteria to determine if the device
is within calibration. If the differences between Spot Vital Signs and the pressure
measurement standard are within the pass/fail criteria at all specified pressures, then
the device is within calibration.
All test specifications are found in Appendix A.
1. Use the pneumatic tubing to connect the Spot Vital Signs to the test station (page
26). Disconnect the battery and connect the power supply. Verify the IR Data
Interface is free from obstacles.
2. Open the Spot Vital Signs repair software and verify the computer is communicating
with the Spot Vital Signs.
3. Hold down the Blood Pressure Start/Stop button while powering on the Spot Vital
Signs. The Spot Vital Signs enters the configuration test mode. After the LCD
displays the software versions press the Mode button to display CAL. Spot Vital Signs
automatically performs an auto zero.
4. Attach a pneumatic clamp to the 100 cc and the 250 cc cylinder and then remove the
clamp from the 500 cc cylinder.
5. Select Test/Calibration on the computer screen. The dialog box displays the Spot
Vital Signs manometer and battery readings and the valve and pump status.
To verify the blood pressure calibration:
1. Push the Spot Vital Signs Blood Pressure Start/Stop button to close the valve.
2. Pump the hand bulb to the set the pressures: 0 mmHg, 50 "5 mmHg, 150 "5 mmHg,
250 "5 mmHg. Verify each pressure is within "3 mmHg of the target pressure (except
for 0 mmHg which should be within "1.0 mmHg).
3. Press the Mode button until the LCD window reads “bat.”
To verify the voltage reading:
1. Set the power supply to 5.6 (+0.3 / -0.0 Vdc).
2. Verify that the voltage reading meets the test specification.
3. Return the power supply to 6.5 Vdc (+0/- 0.25 Vdc) upon completion of this test.
4. Select OK to exit the Test Calibration dialog box.
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 ±2.0 mmHg in order to guarantee that the instrument under
test is within ±3 mmHg of NIST
Temperature functional check
The 9600 Plus Calibration Tester takes approximately 20 minutes to heat to the lowest
setting. When testing several thermometers at all three temperatures, it is
recommended to test all probes at one Calibration Set Point Temperature before
proceeding to the next Calibration Set Point Temperature.
To further expedite testing start at the lowest Calibration Set Point Temperature. The 9600
Plus Calibration Tester does not have an internal fan, this causes a longer cool down time
than warm up time.
Refer to the 9600 Plus Calibration Tester Directions for Use manual for specific
information regarding the LCD window or the control buttons.
1. Choose the proper mains plug insert and slide it over the two prongs in the power
converter.
Figure 4. Power Adapter and Mains Plug Inserts
Two prongs in the
power adapter
11.8593./AUS
11.8593./US
11.8593./EU
11.8593./UK
(US)
US
(UK)
UK
(AUS)
AUS
(EU)
EU
2. Plug the power adapter into the 9600 Plus Calibration Tester (Figure 4) and the
opposite end into a wall outlet.
3. Place the 9600 Plus Calibration Tester on a level surface away from sunlight, drafts,
and other sources of heat or cold.
4. Observe the Set Point Mode in the upper left hand corner of the LCD display. If the
unit displays a "D", it is in Default Mode and will heat to the lowest Set Point
Temperature. If you do not want to conduct testing at this Set Point Temperature,
press and hold the Temperature Selection button to select the desired setting. The
temperature display will flash before staying on continuously to indicate the 9600 Plus
Calibration Tester has stabilized and is ready for use.
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. Place the thermometer in Monitor Mode, refer to the thermometer’s Operator's
Manual.
3. Insert the probe into the Thermistor Device Port.
4. Wait for approximately one minute or until temperature on the thermometer is stable
for ten seconds. Compare the thermometer's temperature reading to the 9600 Plus
Calibration Set Point Temperature. If the temperatures are within ±0.1° C (±0.2° F),
the thermometer is within calibration.
5. Test all available thermometers for calibration verification at the current Calibration Set
Point Temperature. Proceed to the next Calibration Set Point Temperature, see
“Changing the calibration set point temperature” on page 23.
Changing the calibration set point temperature
To scroll from one set point to the next, press and hold the Temperature Selection button
until a beep is heard. The newly selected set point appears in the upper left corner of the
LCD display. The device’s current temperature is displayed, starts to flash, and continues
flashing until the cavity reaches the equilibrium at the new set point.
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. Connect the opposite end of the extension cord
to the Masimo Tester (part number 11593).
2. Power on Spot Vital Signs and confirm the SpO2 reading in the Display Window is
81%± 3% and the pulse reading is 61 bpm ± 1 bpm.
If the reading is outside the range, contact Welch Allyn Technical Service.
3. Place the thumb and index finger on the gray buttons on either side of the Masimo
Tester connector, press the buttons firmly, and gently pull to remove the tester.
Nellcor
Nellcor MP205 SpO2 module
This section applies to Version 1 only. Use a Nellcor-approved SpO2 simulator (SRC-2 ) to
check the SpO2 functionality.
1. Confirm the settings of the simulator:
• Rate: 112
• Light: High 1
• Modulation: High
• RCAL Mode: RCAL63/local
2. Connect the Nellcor SpO2 simulator test cable to the Spot Vital Signs.
3. Verify the Spot Vital Signs reading meets the requirements of the Repair Test
Specification in Appendix C.
4. Reconnect the SpO2 sensor. Place the sensor onto your finger and check Spot vital
Signs for a reading.
Nellcor MP506 and Nell-3 SpO2 modules
Use a Nellcor-approved SpO2 simulator (SRC-MAX ) to check the SpO2 functionality.
1. Confirm the settings of the simulator:
• HR: 60 and 200
• SpO2%: 75 and 90
2. Connect the Nellcor SpO2 simulator test cable to the Spot Vital Signs.
3. Verify the Spot Vital Signs reading meets the requirements of the Repair Test
Specification in Appendix A.
4. Reconnect the SpO2 sensor. Place the sensor onto your finger and check Spot Vital
Signs for a reading.
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. For service, refer the device to
an Authorized Service Center.
Note
Always disconnect the sealed lead-acid battery in the Spot Vital Signs before
performing any calibration function.
Gather the tools listed on page 39 to have available during the procedures.
Connections
1. Connect the blood pressure pneumatic tubing to the Spot Vital Signs and to the test
station (part number 401028).
2. Connect the IR Data Interface cable to the computer.
3. Start the Spot Vital Signs repair software on the computer.
4. Remove the battery and connect the power supply to the Spot Vital Signs.
5. Confirm the IR Data Interface is not obstructed.
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.
Spot Vital Signs
C
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. Read the voltage on the digital multi-meter (DMM) connected to the power supply.
6. Type the voltage reading in the Calibrated Voltage box and select Update.
7. Enter your initials in the Calibration Signature field to complete the voltage calibration.
and select OK. The voltage on the LCD display matches that of the DMM.
Blood pressure calibration
1. Follow the steps in “Connections” on page 25.
2. Adjust the power supply to 6.5 Vdc (+0/- 0.25 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 "CAL" in the LCD window.
4. Select the Calibrate > Manometer on the computer.
5. Verify the valve is “open” and select Calibrate 0.
6. Press the Blood Pressure Start/Stop button to close the valve and verify the 500 cc
cylinder is the only volume in the system.
7. Increase the pressure to 250 mmHg ±5 mmHg using the bulb and valve.
8. Use the bulb and the calibrated digital pressure meter to manually inflate the device
to 200 mmHg and enter the pressure meter reading from Spot Vital Signs in the
Calibration Gain text field.
9. Place the cursor into the box below the Calibrate 0 button and type in the value of the
pressure reading seen on the pressure meter. Select Calibrate 250.
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. Press the Mode button to advance to the Date Set Screen. The day, month, and year
show in the systolic, diastolic, and heart rate displays, respectively.
3. Use the Mode button to select the date item for change. When a date option is
selected, the respective display flashes.
4. Use the Next Patient/Clear or Blood Pressure Start/Stop buttons (arrow up or
arrow down) to change the selected date option. After making all the desired date
changes, press the Mode button once to save the change and advance to the Time
Set Screen.
When in the Time Set Screen the hour (in 24-hour format) and minutes appear in the
systolic and diastolic displays, respectively. Use the Mode button to select the time
item for change. When selected, the time option flashes. Use the Next Patient/Clear
or Blood Pressure Start/Stop buttons to set the time (in the same manner as
described previously).
5. Press the Mode button to save the time and advance to the next screen.
6. Press the Power button to turn off the Spot Vital Signs.
To update the displayed date and time:
1. Press and hold the Blood Pressure Start/Stop + Power buttons to enter the Internal
Configuration Menu. Spot Vital signs displays the revision level of the internal
software.
2. Press the Mode button to advance to the Date Set Screen. The day, month, and year
appear in the systolic, diastolic, and heart rate displays, respectively.
3. Use the Mode button to select the date option for change. When a date item is
selected, the respective display flashes.
4. Use the Next Patient/Clear or Blood Pressure Start/Stop buttons (arrow up or
arrow down) to change the selected date option. After making all the desired date
changes, press the Mode button once to save the change and advance to the Time
Set Screen.
When in the Time Set Screen the hour (in 24-hour format) and minutes appear in the
systolic and diastolic displays, respectively. Use the Mode button to select the time
item for change. When selected, the time option flashes. Use the Next Patient/Clear
or Blood Pressure Start/Stop buttons to set the time (in the same manner as
described previously).
5. Press the Mode button to save the time and advance to the next screen.
6. Press the Power button to turn off the Spot Vital Signs.
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.
To clear the error code:
Power the Spot Vital Signs off, wait five seconds, and power on. If the error code
reappears then power the Spot Vital Signs off and disconnect the battery for five minutes.
Reconnect the battery and power on. If the error code continues to reappear, call Welch
Allyn for a Service Notification Number (see “Technical assistance” on page 11).
Press the Blood Pressure Start/Stop button to reset flashing patient alarm conditions.
Error codes
Table 4. General
Code
Description
Corrective Action
E11
Internal safety violation
Check patient, contact Technical Service.
C12
Ambient temperature out of range
Adjust ambient temperature or device location.
C13
Battery failure
Use wall transformer.
E0.0 - E9.9 Temperature module malfunction
Contact Technical Service.
E42
Internal communications error
Disconnect the battery and wait 5 minutes.
Reconnect the battery and then set the date and time.
E20 - E50
General internal malfunction
Contact Technical Service.
Table 5. Blood Pressure
Code
Description
Corrective Action
C02
Auto-zero failure
Check for air obstruction, limit patient movement.
C03
Inflation too rapid
Check for kinked blood pressure cuff tubing, pressure
hose, or other air obstruction.
C04
Excessive inflation time
Check for air leaks.
C05
Excessive noise
Check patient condition, blood pressure cuff
placement, limit patient movement.
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, E0.3
Ambient temperature out of range
Adjust ambient temperature or device location.
C22
10-minute diagnostic time exceeded
Remove probe, discard probe cover, retake
temperature.
Table 7. SpO2
Code
Description
Corrective Action
E7
Internal SpO2 error.
Retake reading.
C6
SpO2 pulse rate out of range
Check patient condition.
C8
Faulty SpO2 sensor.
Replace sensor.
C9
SpO2 time limit exceeded.
Remove sensor from patient. Reapply sensor and
retake reading.
Causes and corrective action
Table 8. Inaccurate Blood Pressure Readings
Possible Cause
Explanation and Corrective Action
Incorrect blood pressure cuff
size.
Use Welch Allyn approved
blood pressure cuffs only.
Determine correct blood pressure cuff size.
• Use reference markings on blood pressure cuff.
• Measure patient’s arm circumference midway between elbow and shoulder to
select correct blood pressure cuff size).
Patient’s arm position
Ensure patient’s arm is at heart level.
Arm movement during blood
pressure cycle
Keep arm still during blood pressure cycle.
• Movement may cause inaccuracies from artifact.
Blood pressure taken over
clothing
Take blood pressure on a bare arm.
Arrhythmia
Check for regularity of heart rate (palpate pulse or check device).
• Moderate to severe heart rate irregularities may make blood pressure difficult to
measure.
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). The Welch Allyn Spot Vital Signs was
developed using the American Heart Association recommendations, which state
that phase 5 be used unless sound continues to 0 mmHg, in which case the
change in the quality of sound (phase 4) is to be used.
Deflate blood pressure cuff no faster than 3 mmHg per second.
• One of the major sources of error in auscultatory blood pressure measurement is
deflating the blood pressure cuff too quickly. The American Heart Association
recommends deflation no faster than 3 mmHg per second.
Only use a sphygmomanometer that is calibrated.
• An uncalibrated sphygmomanometer may take inaccurate blood pressure
measurements.
Change in blood pressure
between auscultatory reading
and Welch Allyn Spot Vital
Signs reading
Check blood pressure immediately prior to Welch Allyn Spot Vital Signs reading.
Poor auscultatory sound
recognition by observer
Use higher quality stethoscope. Have a different observer check patient’s blood
pressure.
Note: Differences of up to 10 mmHg are considered normal and occur for a number of reasons including intra-patient
blood pressure variability, observer hearing differences, and auscultatory deflation rate.
Table 9. Cuff Inflation and Deflation with No Blood Pressure Reading Displayed (or Error Code in
Display)
Possible Cause
Explanation and Corrective Action
Leak in pneumatic system
Ensure all blood pressure cuff attachments are tight. Carefully
check for leaks in the blood pressure cuff, tubing, and pressure
hose attached to the device.
Arm movement during cycle
Keep arm still during blood pressure cycle. Movement may cause
inaccuracies from artifact.
Blood pressure cuff tubing or pressure hose
movement artifact
Do not contact blood pressure cuff tubing or pressure hose
during blood pressure cycle. Movement may cause inaccuracies
from artifact.
Table 10. No Blood Pressure Cuff Inflation
Possible Cause
Explanation and Corrective Action
Connections between device and blood
pressure cuff loose
Check all connections (do not overtighten).
Table 11. Temperature Malfunction
Possible Cause
Explanation
Corrective Action
Error code displayed
Broken probe
Replace probe. Consult Service Manual. Notify biomedical
department or Welch Allyn Technical Support.
Low temperature
readings
Improper probe
placement
Place probe in most posterior sublingual pocket when in
Oral Mode. Verify patient has had nothing to eat or drink
for 20 minutes.
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.
Verify the sensor cable is correctly plugged into device.
Verify you are using the correct sensor. Use only Masimo or Nellcor SpO2 sensors
and accessories with the Welch Allyn Spot Vital Signs with Masimo or Nellcor
configurations, respectively.
Table 13. Device Does Not Turn On
Possible Cause
Explanation and Corrective Action
Low battery
Check connections between device and transformer, and transformer and wall
receptacle.
Device not powering up
Unplug unit from wall receptacle and check for breaks in cord. If connections are
secure, check electrical outlet.
Charging indicator is on if connections are good and the device is plugged into a
working outlet.
Notify biomedical department or Welch Allyn Technical Support.
Table 14. Blood Pressure Cuff Too Tight (Over Inflation)
Possible Cause
Explanation and Corrective Action
Pressure preset too high
Check default Pressure Preset setting in internal configuration mode. Unless patient
has underlying systolic hypertension, set pressure preset at 160 mmHg. (If systolic
blood pressure greater than pressure preset, the device automatically increases an
additional 40 mmHg.)
Table 15. Blood Pressure Cuff Pops Off
Possible Cause
Explanation and Corrective Action
Inappropriate blood pressure
cuff size
Determine blood pressure cuff size with the blood pressure cuff markings. If blood
pressure cuff continues to pop off, notify biomedical department or Welch Allyn
Technical Support.
Blood pressure cuff applied
inside out
Re-apply blood pressure cuff. Make sure Welch Allyn label is facing away from arm.
Table 16. Blood Pressure Cuff Deflating Too Slowly
Possible Cause
Explanation and Corrective Action
Normal operation
Typical time to take a reading is 20 to 45 seconds; 165 seconds is the maximum.
Pressure preset too high
Check default pressure preset setting in internal configuration mode.
Patient movement
Have patient sit still. Do not have arm tight against chest wall, as respiration may
affect speed and accuracy of blood pressure measurement.
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.
If an E38 error is present on Version 1, the battery does not charge correctly. Clear the
error and then proceed.
To charge the battery, place the battery back into the Spot Vital Signs and connect the
charger for 8 hours. Let the device sit idle for one day and recheck the battery voltage.
If the voltage is below 6.0 Vdc, replace the battery (see “Battery removal and
replacement” on page 70).
4. Power on Spot Vital Signs. If the device does not power on:
a.
Verify the power supply is connected to the device and turned on.
b. Change the main PCB (see “Main printed circuit board assembly” on page 44).
c.
Change the display PCB (see “LCD disassembly” on page 42).
Window display check
1. Press the Power button to start the Spot Vital Signs.
2. Observe the Spot Vital Signs window display and verify the LED segments light up for
one to two seconds before the device enters the normal operating mode.
If there any segments that do not light, change the window display (see “LCD
disassembly” on page 42).
Blood pressure calibration check
Perform two or three blood pressure cycles to verify proper cuff inflation/deflation and the
readings. If Spot Vital Signs does not inflate or deflate properly perform the following
procedure.
1. Open the Spot Vital Signs housing (see “Front housing and key pad disassembly” on
page 42).
2. Check Spot Vital Signs for pinched tubing and reroute if necessary. Re-run the blood
pressure cycle to confirm the problem is fixed.
If there are no pinched tubes, change the valve (page 48).
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).
Temperature functional check
Use the 9600 Plus Caligration Tester to check the thermometer accuracy (see
“Temperature functional check” on page 22).
Masimo SpO2 functional check
Use the Masimo Tester to check the functionality of the SpO2 module of Spot Vital Signs
(see “Masimo” on page 24).
Nellcor SpO2 functional check
Use a Nellcor approved simulator to check the functionality of the SpO2 module of Spot
Vital Signs (see “Nellcor” on page 24).
Communication option check
1. Select Tools > Options and confirm that communication port and the cable are
selected.
2. Select Test and confirm that the Spot Vital Signs responds accordingly.
If an error is present then confirm that there are no obstacles in the way of the IR
Data Interface. Re-try the test.
If the error is still prsent then change the Main PCB (page 44).
Functional testing procedures
Perform the functional testing procedures in this section before returning Spot Vital Signs
into service.
Verify you are using a calibrated pressure meter with an accuracy of better than ±3 mmHg
and that the calibration certificate is traceable to NIST.
Subtract the rated accuracy of the pressure measurement standard from the ±3 mmHg
rated accuracy of Spot Vital Signs. This is the pass/fail criteria to determine if the device is
within calibration. If the differences between Spot Vital Signs and the pressure
measurement standard are within the pass/fail criteria at all specified pressures then the
device is within calibration.
1. Follow the steps in “Connections” on page 25.
2. Enter the “Internal configuration mode” on page 20. Aftering viewing the software
versions, press the Mode button until CAL displays in the LCD window. Spot Vital
Signs automatically performs an auto zero once the LCD window displays CAL.
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. Use the hand bulb to verify Spot Vital Signs is within calibration specification at the
target pressures of 250±5 mmHg, 150 ±5 mmHg, 50 ±5 mmHg, and 0 mmHg with
each reading within ±3 mmHg of the target pressure except for the 0 mmHg reading
which is within ±1.0 mmHg.
7. Press the Mode button until the LCD window displays bat.
8. Set the power supply to 5.6 Vdc (+0.3/-0.0 Vdc). Verify the voltage reading meets the
specification (see “Voltage calibration” on page 74).
After completing this test, return the power suppy to 6.5 Vdc (+0/-0.25 Vdc).
9. Select OK in the Test Calibration dialog box.
Current test
1. Follow the steps in “Connections” on page 25.
2. Power off Spot Vital signs and then power on in normal mode.
3. Select Test > Current Levels in the Spot Vital Signs Repair Software. Use the reading
from the current meter and check the following current levels:
a.
Blank
b. Back Light (Idle)
c.
Valve/Pump
d. SpO2 Mode
The test result is a pass or fail result.
4. Select Ok to exit the dialog box.
Noise levels
1. Follow the steps in “Connections” on page 25.
2. Select Test > Noise Levels in the Spot Vital Signs Repair Software and press the Test
button to retrieve Spot Vital Signs internal pressure channel noise level. The test
result is a pass or fail result (page 73).
3. Select Ok to exit the dialog box.
Button test
1. Follow the steps in “Connections” on page 25.
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. Select all on in the Spot Vital Signs Repair Software to confirm the Window Display
shows all of the segments.
4. Select all off in the Spot Vital Signs Repair Software to confirm the Window Display
clears all of the segments.
5. Select Normal in the Spot Vital Signs Repair Software to confirm the Window Display
returns to the normal display.
6. Select Segment in the Spot Vital Signs Repair Software to confirm the Window
Display shows each number is correct as the test progresses one cycle.
7. Select on in the backlight Spot Vital Signs Repair Software to confirm the Window
Display backlight comes on.
8. Select off in the backlight Spot Vital Signs Repair Software to confirm the Window
Display backlight goes out.
9. Select buzzer test to confirm the buzzer of Spot Vital Signs is on. Select Ok to exit
the test and turn the buzzer off.
10. Select Ok to exit the dialog box.
Print quality
This section affects Spot Vital Signs Version 1 only.
This test requires the use of the TTL service port. You cannot complete the test using IR
for communication.
1. Follow the steps in “Connections” on page 25.
2. Verify the printer is the HP IR printer that works with Spot Vital Signs.
3. Select Test > Print Quality. Select test pattern 1. The printer prints out a pattern of
large and small ASCII characters.
4. Verify the quality of the printer output.
5. Select test pattern 2. The printer prints out a solid gray field.
6. Verify the quality of the printer output.
7. Select Ok to exit the dialog box.
If the print quality is poor for either test then replace the printer batteries and re-test.
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. The software
tests for the inflation time and provides a Pass or Fail indication.
5. Attach the test system to the 100 cc cylinder. Select Valve Control Test. The
software tests for valve control and provides a Pass or Fail indication.
6. Select Ok to exit the dialog box.
Fail safe (over pressure) test
1. Follow the steps in “Connections” on page 25.
2. Enter the “Internal configuration mode” on page 20. Aftering viewing the software
versions, press the Mode button until CAL displays in the LCD window. Spot Vital
Signs automatically performs an auto zero once the LCD window displays CAL.
3. Connect the Spot Vital Signs to the 500 cc cylinder and press the Blood Pressure
Start/Stop button to close the valve.
4. Pump the hand bulb until an E10 error occurs and record the highest pressure
observed on the pressure meter.
5. Press the Cancel button to return to CAL mode.
6. Press the Blood Pressure Start/Stop button to close the valve.
7. Apply 70 mmHg and start a timer. When an E11 error code is triggered, stop the timer
and record the time.
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
< 0.5 A
Current Test – Valve Pump
< 2.0 A
Noise Level
< 0.05 mmHg
Button Test
Pass/Fail
Interface Test
Pass/Fail
Leak Test
<= 6 mmhg in 15 seconds
Dump Test
< 10 Seconds
Inflation Test
< 7 Seconds
Valve Control Test
Pass/Fail
Over Pressure Test
296 to 329 mmHg
SPO2 Sensor - Masimo
81% +/- 3% 61bpm +/- 1bpm
SPO2 Sensor - Nellcor
90% +/- 1% 60bpm +/- 1bpm
Temperature Calibration
96.8 +/- 0.2F 105.8 +/- 0.2F
Temperature Cal Key Suretemp
97.3 +/- 0.2 F
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. For service, refer the device to
an Authorized Service Center.
WARNING Follow the ESD procedures on see “Electrostatic discharge (ESD)”
on page 7.
Note
Always disconnect the sealed lead-acid battery in the Spot Vital Signs before
performing any repair function.
Have the following tools available during the procedures.
Description
Part Number
Source
Bulb and valve
5088-01
Welch Allyn
Pneumatic tubing (3 ea.)
5089-12
Welch Allyn
Test Cable (IR)
66P824
Welch Allyn
Test Cable (Service Cable Kit)
130S60
Welch Allyn
Repair Software
716948
Welch Allyn
Welch Allyn 9600+ Calibrator
01800-210
Welch Allyn
Welch Allyn Calibration Key
06137-000
Welch Allyn
Spot Vital Signs Service Manual
4200-145E
Welch Allyn
Pneumatic clamps (3)
21730-001
VWR Scientific 800-932-5000
Pliers
Tool/Supply Store
Wire Cutter
Tool/Supply Store
Tweezers
Tool/Supply Store
Torque Bit (T8)
Tool/Supply Store
phillips screw driver
Tool/Supply Store
T10 Torx Bit
Tool/Supply Store
3/8 Hex Socket
Tool/Supply Store
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
Nellcor Test Cable
8-Dec
Nellcor +1 800 635 5267
Calibration Volumes
401028
Welch Allyn
IBM compatible computer 486 133 MHz computer or better.
Digital Multi-Meter (qty 2) with 4.5 digit displays for accuracy.
Power Supply: 0-20 Vdc adjustable with 0-3A output.
Battery disassembly
1. Disconnect the power and all accessories from the Spot Vital Signs.
2. Remove the four screws holding the battery door using a phillips-head screwdriver.
3. Remove the battery door to expose the battery and lift it out. Disconnect the one-way
connector.
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. Remove the two #10 Torx screws on the temperature probe holder and gently pull
out.
Temperature probe holder screws
Temperature connector PCB
screws
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.
Pneumatic Tubing
Version 1
Pneumatic Tubing
Version 2
5. Gently pull the button switch array out of the cover.
6. Align and push the new button switch array into place.
LCD disassembly
Follow all the previous steps and then:
1. Gently lift the LCD module from the posts.
2. Roll the LCD to the left of the Spot Vital Signs and lay it on the bench.
LCD
Flex Cable
3. Remove the flex cable from the LCD and set the LCD aside.
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. Cut the wire tie and slide the battery connector out of the rear housing to remove the
cable assembly.
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.
If the Spot Vital Signs uses SpO2 then remove the three screws on the underside of
the Main PCB and lift the SpO2 PCB off the main board (two main board connectors).
5. Attach the existing SpO2 board to the new main board reusing all hardware.
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. This exposes the two screws that
hold the PCB to the standoffs.
Phillips screws
2. Remove the two phillips head screws and lift the Masimo adapter board straight up.
There are four connectors on this board - two connect to the main PCB and the other
two connect to the Masimo PCB.
Copper shield tape
3. Unfold the paper to expose the SpO2 board and remove the two screws holding the
board.
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. If the Nell-3 is used with the old
main PCB, an E7 error occurs after connecting the power.
For MP205 PCB: Verify the following:
•
•
•
There are two shunts at the top of the jumper row on the PCB before
installing on the Main PCB.
The two locking tabs on the connectors of the Nellcor MP205 PCB are broken
off before installing onto the Main PCB.
The nylon washers are located on the main PCB when reassembling the
SpO2 PCB to the Main PCB.
For MP506 or Nell-3 PCB: Verify the following:
•
The DIP switch positions are (1-on, 2-on, 3-off and 4-off) on the new PCB and
the two locking tabs on the connectors of the Nellcor MP506 PCB are broken
off before installing onto the Main PCB.
•
Verify that the nylon washers are located on the main PCB when
reassembling the SpO2 PCB to the Main 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. Lift the valve and the pump from their respective locations on the rear housing.
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 1.5 inch tubing to the Spot Vital Signs.
To assemble the pump filter:
1. Verify you have three pieces of silicon tubing .8 inches in length (421051-5), one elbow
fitting (703843), one NIBP filter (600-0520-00), and one foam sleeve (706327)
available.
2. Connect one piece of the silicon tubing at each end of the elbow fitting, and then
connect the NIBP filter to one of the open ends.
3. Connect the last piece of silicon tubing to the opposite end of the NIBP filter.
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.
Refer to the Spot Vital Signs Directions for Use manual for complete information.
Battery /charge system
Spot Vital Signs includes a 6 Volt, 4.5 amp-hour sealed lead-acid battery that supplies all
power to the device. A polarized connector protects against reversing the battery
connection. An external power supply charges the battery and can operate Spot Vital
Signs at the same time. The external power supply provides the Spot Vital Signs with up
to 1000mA at 7.2VDC. As the battery charges, the energy required to charge it decreases
and the external power supply voltage rises to 8 VDC while supplying 750mA. The voltage
to the external power supply is approximately 12.5VDC with no load attached. The Spot
Vital Signs monitors the battery voltage to control the fast and trickle charge modes. The
CPU allows fast charge until the battery reaches approximately 7.0 VDC, and then the CPU
switches the charger circuit to trickle charge mode. For a dead battery the external charger
supplies sufficient power to allow the Spot Vital Signs to power on, but not enough
energy for a blood pressure cycle. A 5 amp surface mount fuse is populated on the Spot
Vital Signs main board at location F301.
Main CPU power supply
A single +5VDC linear regualtor (U319) powers the CPU and provides power to other
digital circuitry on the main printed circuit board.
Clock/calendar power
The battery directly powers the internal real time clock (U309) through a voltage divider.
The Spot Vital Signs always has power if a battery is connected. A 100uF capacitor (C308)
delivers energy to the real time clock during a battery exchange. If the battery is
disconnected for longer than 1 minute, reset the real time clock after restoring the battery
power.
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 separate +5V linear regulator (U1)
powers the ModB analog circuitry to keep digital signal noise separated from the analog
components.
Thermometer power
A combination of the main CPU +5V and the ModB +5V supply the SureTemp
thermometer circuitry. If the main CPU disconnects power from the ModB blood pressure
circuitry then the SureTemp circuitry is also disabled.
SpO2 power
The battery supplies power to the SpO2 through a +5V linear regualtor (U322). If there is
no SpO2 module connected to the Spot Vital Signs main board the SpO2 power supply is
disconnected.
LCD power
The main CPU supplies power to the LCD module through the J307 connector, and the
FET Q312 and comparator U324A control the backlight. This comparator and FET create a
pulse width modulated signal that allows the backlight to maintain constant brightness
during changing battery voltages. The white backlight LEDs are connected in series inside
the LCD module. This configuration causes some LEDs to look brighter or dimmer than
adjacent LEDs. This is normal and expected.
Communications
A Spot Vital Signs and computer can communicate through the IR or service
communication ports. IR communication is the default mode and works as a standard
serial port (9600 baud, 8 data bits, no parity, 1 stop bit, no flow control) when used with
Welch Allyn 716948 communications kit. The hard-wired service port is positioned behind
the battery. Connect the port as described in the interconnect diagram. The hard-wired
port is intended for service use only. Never use the hard-wire communications port while
the device is connected to a patient because it has no patient isolation protection.
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
BATFUSE
TP
TP2
SPO2 CONNECTORS
3
CHG IN
CH GND
3
PRESSURE
TRANSDUCER
BCRX
MUX_TXD232
SPIN
/BONE
SERVICE
PORT
BATTERY / CHARGER
J308
BATTIN
BATGND
1
1
2
3
4
5
6
7
8
9
NELLCOR SPO2 MODULE OR
MASIMO ADAPTER BOARD
AND MASIMO SPO2 MODULE
PUMP+
PUMPVALVE+
VALVE-
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
4
FFC
SERVICE PORT
1
2
3
4
5
6
J302
1
2
3
4
DB9 PIN 5 GND
DB9 PIN 3 TXD
DB9 PIN 2 RXD
DB9 PIN 7 RTS
2
A1
A2
A3
B1
B3
B2
DB9
RS-232
Date:
Size
C
Title
DB9
1
of
1
HOST
COMPUTER
WITH WA
REPAIR
SOFTWARE
R ev
A
A
B
C
D
Technical overview
1
Thursday, February 01, 2007
Document Number
REFERENCE ONLY
Sheet
CHARGER
1
SPOT INTERCONNECT DIAGRAM
B&B ELECTRONICS
232LPTTL
TTL TO RS-232
LEVEL SHIFTER
BATTERY
SURETEMP PROBE
CONNECTOR
(TOP VIEW)
CHARGE
JACK
TEMP POD
BOARD
EXTERNAL BP HOSE CONNECTION
PIN 6
RJ-45
PIN 1
RED
BLK
Ferrite
NO CONNECT
TEMP POD
RIBBON CABLE
TEMPERATURE POD
1
2
3
4
5
6
7
8
9
10
J1
2
TTL
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
-
+
5
Service Manual
53
Interconnect diagram
VALVE
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. Repair Replacement Table (Version 1 only)
Faulty Part
Replacement Part(s)
Main PCB assembly 421267-501
(Print option)
Main PCB assembly 403290 (Pressure Preset option)
Front Housing (Version 2) 403300
Switch Array (Version 2) 706213
Directions for Use (English) 706272
LCD 421020-501
LCD 706062
Switch Array (Version 1)
Switch Array (Version 1) 703430
Front Housing (Version 1) 421049-502
Front Housing (Version 1) 421049-502
Parts listed below are used in both Version 1 and Version 2 unless otherwise indicated.
Table 18. Spot Vital Signs Repair Parts List
Description
Part Number
Source
Probe Assembly, Lathg Conn. Oral - 9 Ft
02678-100
Welch Allyn
Probe Assembly, Lathg Conn, Rectal - 9 Ft
02679-100
Welch Allyn
M031 Probe Cover Clear - 1K
05031-101
Welch Allyn
Cable Tie Mount
113P463
Cable Tie, 6 inch
113P464
Switch Array, Spot, Epoxy Coated, Version 1
703430
Grommet, Ribbed, Shock Isolation
421019
Assembly, Spot Pump Repair
421023-501
Welch Allyn
Flex Cable, Main to Display
421030
Welch Allyn
S/N Tracking Label, Version 1
402427
Welch Allyn
S/N Tracking Label, Version 2
403430
Screw, 4-20 x .31 Plastite PH Torx
421037
Lockwasher, 5/16 Internal Tooth
421039
Welch Allyn
56
Field replaceable units
Welch Allyn Spot Vital Signs
Table 18. Spot Vital Signs Repair Parts List
Description
Part Number
Source
Rear Housing
421040-1
Welch Allyn
Door, Battery
421042
Welch Allyn
Pod, Temperature
421044
Welch Allyn
IR Window
421045
Welch Allyn
Cover, SpO2
421048
Welch Allyn
Front Housing Assembly, Version 1
421049-502
Welch Allyn
Assembly, Pneumatic Tubing Only
421001-503
Welch Allyn
Assembly, Pneumatic Fittings and Tubing
421001-504
Welch Allyn
Fitting “Y” 1/8 x 1/8 x 1/8
620216
Fitting “T” 1/8 x 1/16 x 1/8
620217
Fitting, Elbow 1/8” *Ref L230_2)
703843
Tubing, Silicone, 1/8 x 1/4 x .80
421051-5
Tubing, Silicone, 1/8 x 1/4 x 3.60
421051-6
Tubing, Silicone, 1/8 x 1/4 x 9.0
421051-8
Tubing, Silicone 1/8 x 1/4 x 1.50
421051-11
Tubing, Silicone 1/16 x 3/16 x .50”
421052-1
Filter, NIBP
600-0520-00
Foam Sleeve
706327
Flex Cable, Main to Temperature Pod
421066
Welch Allyn
Cable Assembly - Pump/Pneutron Valve
421099
Welch Allyn
PCB Assembly, Temperature Pod
421105-501
Welch Allyn
Battery Label, Rear Housing
421219N
Welch Allyn
Cable Tie, 6” Releasable
421220
Cable Assembly - Power Spot Ext
421273
Welch Allyn
Label, Caution/Button
421278
Welch Allyn
Packet, Desiccant, 2 Unit
618E50-1
Pump
620156
Welch Allyn
Stepper Valve
620157
Welch Allyn
Nellcor Label (carton)
620038
Welch Allyn
“Nellcor Works Here” Label
620377-1
Nellcor Nell3 Pulse Oximetry
704870
Nellcor Nel-3 Patent Label
705224
Washer, Flat, #4 Nylon
22P1451
Standoff, #4 x .0400”
421018
4-40 x .250 Hex Nut
790043
Screw 4-40 .750 Pan Phillips w/Nyloc
9P2486
Latch, SpO2
421047
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 .750 Pan Tox SS
9P2847
Flex cable, main to display
421030
Pump sub-assembly
421023-501
IR window
421045
Battery, 6 volt
4200-84
Cable assembly - power Spot Vital Signs ext.
421273
Rear housing
421040-1
Front housing assembly, Version 1 only - black
421049-502
Temperature pod housing
421044
SpO2 cover
421048
Battery door
421042
Switch array, Version 1 only - 6/W/B
703430
PCB assy, temperature pod
421105-501
Cable assy - pump/pneutr ON valve
421099
Stepper valve
620157
Flex cable, main to temp pod
421066
Assy, pneumatic tubing
421001-504
Assy, Masimo front housing, Version 2 only - blue
403301
MS-11 OEM PCB, Version 2 only
031-0160-00
Standoff set, MS-11, left and right, Verions 2 only
706070
Shield, MS-11, Version 2 only
706053
Masimo adapter PCA, Version 2 only
403291
Tape, copper, Masimo shield, Version 2 only
704681
Assy, plain front housing, blue
403304
Main PCA, Version 2 only
403290
Display module
706062
Switch array, blue/white
706213
MS-11 Nomex, Version 2 only
706055
Assy, pump filter
403370
Power cord - domestic
76400
Assembly, Spot pneumatic repair
421001-503
Source
57
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 .250 pan phillips, Version 2 only
106124-4
DFU, English
706272
Flex cable, main to display
421030
Pump sub-assembly
421023-501
IR window
421045
Battery, 6 volt
4200-84
Cable assembly - power Spot Vital Signs ext.
421273
Rear housing
421040-1
Front housing assembly, Version 1 only - black
421049-502
Kits Available:
Spot Temperature Upgrade
130S61
Nellcor SpO2 Upgrade
130S62
Masimo SpO2 Upgrade
130S64
Pneumatic Assembly Upgrade:
Fitting, Elbow 1/8” (REF L230_2)
703843
Tubing, Silicone, 1/8 x 1/4 x .80
421051-5
Tubing, Silicone, 1/8 x 1/4 x 1.50
421051-11
Filter, NIBP
600-0520-00
Foam Sleeve
706327
Source
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.
Blood pressure
Cuff Pressure Range
0 mmHg to 300 mmHg
Cuff Inflation Factory
Default
160 mmHg
Systolic Range
60 mmHg to 250 mmHg
Diastolic Range
30 mmHg to 160 mmHg
Accuracy
Determination Time
Pulse Rate Range
Pulse Rate Accuracy
Overpressure Cutoff
Blood pressure accuracy meets or exceeds SP10-1992 AAMI standards for
non-invasive blood pressure accuracy (AAMI standard: ± 5 mmHg mean error,
8 mmHg standard deviation). Blood pressure accuracy is validated for pressure
measurement using the upper arm only.
Typical: 20 to 45 seconds
Maximum: 165 seconds
40 bpm to 200 bpm
±5.0%
305 mmHg -0/+15 mmHg
Temperature
Accuracy
Range
Determination Time
Calibration accuracy: + 0.2° F (+ 0.1° C).
Maximum: 109.4° F/43.0° C
Minimum: 86.0° F/30.0° C
Oral: approximately 4 seconds
Axillary: approximately 10 seconds
Rectal: approximately 15 seconds
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.
Performance Measurement Range
SpO2: 70 to 100%
Pulse Rate: 25 - 240 beats per minute (BPM)
Perfusion
0.02% to 20%
SpO2 Accuracy
Saturation: 70% to 100%
No Motion: Adults, Pediatrics ± 2 digits
Motion: Adults, Pediatrics ± 3 digits
Low Perfusion: Adults, Pediatrics ± 2 digits
Pulse Rate Accuracy
Pulse Rate: 25 to 240 bpm
No Motion: Adults and Pediatrics ± 3 digits
Motion: Adults and Pediatrics ± 5 digits
Low Perfusion: Adults and Pediatrics ± 3 digits
Table 19. Masimo Sensor Accuracy Guide
Saturation Accuracy
Sensor
Pulse Rate Accuracy
Weight Range
No Motion
Motion
No Motion
Motion
LNCS-DCI
> 30 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNCS-DCIP
10 to 50 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNCS-ADTX
> 30 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNCS-PDTX
10 to 50 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNCS INF-L
3 to 20 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNOP-DCI
> 30 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNOP-DCIP
10 to 50 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNOP-ADT
> 30 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNOP-PDT
10 to 50 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
LNOP INF-L
3 to 20 kg
± 2%
± 3%
± 3 bpm
± 5 bpm
Masimo patents
The Masimo sensors and cables are covered under one or more of the following U.S.A.
patents: 5,758,644; 5,823,950; 6,011,986; 6,157,850; 6,263,222; 6,501,975; and other
applicable patents listed at www.masimo.com/patents.htm.
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.
SpO2 Accuracy (MP205 specification - 2002 and
earlier)
±3% in the range of 70-100%
Oxygen saturation (1 stand deviation).
<70% unspecified by the OEM.
Pulse Rate Range
25 to 240 bpm
Pulse Rate Range (using SpO2 determination MP205
specification -2002 and earlier)
25 to 245 bpm
Pulse Rate Accuracy
Pulse Rate Accuracy (MP205 Spec - 2002 and earlier)
±3 bpm
±3 bpm (low perfusion)
SpO2 Module Heart Rate ±3 bpm
Table 20. OxiMax Sensor Models, Single Patient Use
Sensor Models
SpO2 Range
70% to 100%
MAX-AI
±2
MAX-PI
±2
MAX-II
±2
1
MAX-RI
1
± 3.5
The accuracy specification has been determined between saturations of 80% to 100%.
Table 21. OxiCliq Sensor Models, Single Patient Use
Sensor Models
OXICLIQ-PI
SpO2 Range
70% to 100%
± 2.5
Table 22. Reusable Sensor Models
Sensor Models
D-YS (Infant to Adult)
SpO2 Range
70% to 100%
±3
D-YS and D-YSE
± 3.5
D-YS and D-YSPD
± 3.5
DS-100A
OXI-A/N (Adult)
OXI-P/I (Pediatric/infant)
±3
Adult: ± 3
±3
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 (2.2 kg)
Self-supporting on rubber feet
Custom Mobile Stand
Custom Wall Mount
Custom IV Pole Mount
May be hand-carried when held by the rear handle.
Electrical
Power Requirements
Battery
Patient-rated isolation transformer is connected to AC mains:
North American Version:120VAC, 60Hz. 0.13A Input, 7.2VDC, 1.0A Output
International Version:240VAC, 50Hz 0.065A Input, 7.2VDC, 1.0A Output
Australian Version:240VAC, 50Hz, 13VA Input, 7.2VDC, 1.0A Output
Lead acid, with external charger.
A fully charged battery supports 130 typical blood pressure determinations taken at
7-minute intervals. The battery is 90-100% charged after 12 hours of charging. The
battery automatically charges when the Spot Vital Signs is powered through the AC
power transformer. The battery charges faster when the instrument is not in
operation.
Environmental
Operating Temperature
+10 to +40C (Thermometer operating temperature 16° to 40° C)
+50 to +104F (Thermometer operating temperature 61° to 104° F)
Storage Temperature
-20 to +50C
-4 to +122F
Transport Temperature
-20 to +49C
-4 to +122F
Relative Humidity
15 to 90% (non-condensing)
Operating Altitude
-170 to +4877 m
-557 to +16,000 ft.
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. Therefore, its RF
emissions are very low and are not likely to cause any interference in nearby electronic
equipment.
Class B
The Spot Vital Signs is suitable for use in all establishments, including domestic
establishments and those directly connected to the public low-voltage
power supply network that supplies buildings used for domestic purposes.
CISPR 11
RF emissions
CISPR 11
Harmonic emissions
Class A
IEC 61000-3-2
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
Complies
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. If floors are
covered with synthetic material, the relative humidity should
be at least 30%.
Electrical fast transient/ ±2 kV for power supply
burst
lines
±2 kV for power supply
lines
Mains power quality should be that of a typical commercial or
hospital environment.
IEC 61000-4-4
±1 kV for input/output
lines
±1 kV for input/output
lines
Surge
±1 kV differential mode
±1 kV differential mode
IEC 61000-4-5
±2 kV common mode
±2 kV common mode
Voltage dips, short
interruptions, and
voltage variations on
power supply input
lines.
>95% dip in 0.5 cycle
>95% dip in 0.5 cycle
60% dip in 5 cycles
60% dip in 5 cycles
30% dip for 25 cycles
30% dip for 25 cycles
IEC 61000-4-11
>95% dip in 5 seconds
>95% dip in 5 seconds
Power frequency
(50/60Hz)
magnetic field
3 A/m
3 A/m
IEC 61000-4-2
IEC 61000-4-8
Mains power quality should be that of a typical commercial or
hospital environment.
Mains power quality should be that of a typical commercial or
hospital environment. If the user of the Spot Vital Signs
requires continued operation during power mains
interruptions, it is recommended that the Spot Vital Signs be
powered from an uninterruptible power supply or battery.
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical commercial or
hospital environment.
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.
Immunity Test
IEC 60601
Test Level
Compliance Electromagnetic Environment - Guidance
Level
Portable and mobile RF communications equipment should be used no closer
to any part of the Spot Vital Signs including cables, than the recommended
separation distance calculated from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
V1 = 3 Vrms
d = (1.17) P
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
E1 = 3 V/m
d = (1.17) P 80 MHz to 800 MHz
d = (2.33) P 800 MHz to 2.5 GHz
where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer and d is the recommended
separation distance in metres (m).
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site survey,a should be less than the compliance level in
each frequency range.b
Interference may occur in the vicinity of equipment marked with the
following symbol:
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures,
objects, and people.
a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio,
AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due
to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the Spot
Vital Signs is used exceeds the applicable RF compliance level above, the Spot Vital Signs should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the Spot Vital Signs.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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. The customer or
user of the Spot Vital Signs can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Spot Vital Signs as recommended below, according to the maximum output power of the
communications equipment.
Separation Distance According to Frequency of Transmitter (m)
Rated Max. Output
Power of Transmitter
(W)
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d = (1.17) P
d = (1.17) P
d = (2.33) P
0.01
0.11667
0.11667
0.23333
0.1
0.36894
0.36894
0.73785
1
1.1667
1.1667
2.3333
10
3.6894
3.6894
7.3785
100
11.667
11.667
23.333
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated
using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
Note 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures,
objects, and people.
Patents
D392,043 and other patents pending.
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.
For Spot Vital Signs, Version 1, the serial number is any year prior to 2007 and a
manufacturing number 04999 or less. These serial number labels require the CE0050
mark.
4341 State Street Road
Skaneateles Falls,
NY 13153 USA
MADE IN THE U.S.A.
N344
WELCH ALLYN PTY LTD
5/38-46 SOUTH STREET
RYDALMERE
NSW 2116
AUSTRALIA
CERTIFIED TO
CAN/CSA STD
C L I S T E D US C22.2 NO. 601.1
74227
CONFORMS TO
IEC 60601-1
UL STD 2601-1
PATENT NO.
+
D392,043
0050
420 SERIES
9-digit serial number
location.
For Spot Vital Signs, Version 2, the year is 2007 and the manufacture number is 05000.
These serial number labels require the CE0297 mark.
0297
4341 State Street Road
Skaneateles Falls,
N 13153 USA
MADE IN THE U.S.A.
+
www.
welchallyn.
com
N344
SPOT VITAL SIGNS
Patent No. D392,043
WELCH ALL N PT LTD
5/38-46 SOUTH STREET
R DALMERE
NSW 2116
CERTIFIED TO
AUSTRALIA
CAN/CSA STD
Pb
C
US
166292
C22.2 NO. 601.1
CONFORMS TO
IEC 60601-1
UL 60601-1
9-digit model and serial
number location.
Firmware identification
To confirm the software levels of the Spot vital signs, enter the Configuration Mode (page
20).
The main software versions display as follows:
In the SW1 screen the top two numbers are the software version of the Spot Module and
the remaining numbers are for the SpO2 module (if available). Press the Start or Clear
button to cycle through the SpO2 software number.
In the SW2 screen the two numbers represent the NIBP module software and the
temperature algorithm version (if temperature is active).
Note
Review the Repair Test Specifications document located in Appendix C to verify
the firmware levels.
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.
Note
Prevent water or other fluids from entering any connectors. Should this occur, dry
the connectors with warm air. Check all measurement functions for proper
operation.
Blood pressure cuff
Caution Do not press with a hot iron.
Clean the blood pressure cuff with a damp cloth, or wash in water with soap or detergent.
Before washing the blood pressure cuff, remove the tube fitting(s), close off tubes with
plugs (available as accessory 5082-163) and place the hook and loop fasteners in the
closed position. After washing, allow the blood pressure cuff to air dry. Re-assemble the
tube fitting(s).
Disinfection: You may use glutaraldehyde-type liquid disinfectants on the durable blood
pressure cuff. Prolonged use of these disinfectants at full strength may cause
discoloration of the white blood pressure cuff markings.
Sterilization: Do not use steam or heat to sterilize the blood pressure cuff or pressure
hose. If necessary, use gas sterilization.
Cables and pressure hose
Wipe the cabling and pressure hose with a damp cloth moistened in a mild detergent
solution. Do not immerse.
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.
Clean the reusable SpO2 sensor with a 70% isopropyl alcohol solution and allow to air dry.
Do not immerse the sensor or cable.
Every 3 months, inspect the temperature probe, SpO2 cord, and accessories for fraying or
other damage. Replace as necessary.
Battery removal and replacement
Caution Only use the Welch Allyn 4200-84 lead acid battery. Using the incorrect
battery will cause damage to the Spot Vital Signs and void the warranty.
As necessary, replace the internal battery after heavy use or the battery no longer
charges. Use a battery with the same part number.
1. Turn the Spot Vital Signs off and disconnect the DC power transformer cord.
2. Remove the 4 screws holding the battery door using a phillips-head screwdriver.
Remove the battery door to expose the battery.
3. Tip the Spot Vital Signs to slide the battery out. Disconnect and discard the old battery
per local regulations. Reconnect the new battery as shown as quickly as possible to
prevent loss of power to the unit and subsequent loss of clock time.
Battery
Connector
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.
The battery is a lead-acid battery. In the USA, call 1-800-SAV-LEAD for instructions on how
to recycle. For users outside the US please contact your local authorities on recycling.
Masimo SpO2 calibration check
Use a Masimo-approved SpO2 simulator (Fluke Biotek Index 2 or Clinical Dynamics
SmartSat) to check the SpO2 accuracy. There is no way to change the calibration of the
SpO2 module. If the SpO2 is out of calibration, contact Technical Service.
Nellcor SpO2 functional check
Use a Nellcor SpO2 simulator (SRC-MAX ) to check the SpO2 functionality. There is no
way to change the functionality of the SpO2 module. If the SpO2 is not functioning
properly, contact Technical Service.
SpO2 accessory disposal
Dispose of all finger sensors and cables in accordance with facility, local, and goverment
regulations.
Temperature calibration check
Use the 9600 Plus Calibration Tester to check the SureTemp thermometer accuracy. If the
thermometer is out of calibration, contact Technical Service.
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 "1.07" for "Spot" software
(SW 1) and equal to or greater than "1.01" for ModB software (SW2). If the Unit has Nellcor
SpO2 (MP205 PCB), the SpO2 software is equal to or greater than "1.2.0.0”. If the Unit has
Nellcor SpO2 (MP506 PCB), the SpO2 software is equal to or greater than “1.7.2.0”. If the
Unit has the temperature option, the temperature software is equal to or greater than
“2.1”.
General unit test
A-D noise test
The A-D Noise Test is defined as the amount of noise on the Spot Vital Signs A-D
pressure channel; over a 1 second sample time while 0.0 mmHg is applied to the device
pressure port. The maximum limit is 0.050 mmHg.
Leak test
The Leak Test is defined as the amount of pressure drop that is recorded over a 15-second
interval with a 100cc cylinder attached to the Spot Vital Signs pressure port and that
volume having a stabilized pressure of 250 mmHg. The limit is 5 mmHg maximum.
Inflation test
The Inflation Test is defined as the amount of time the Spot Vital Signs pump can inflate a
250 cc cylinder from 5 mmHg to 210 mHg. The limit is 7 seconds, maximum.
Dump test
The Dump Test is defined as the amount of time it takes Spot Vital Signs to deflate a 500
cc cylinder from 260 mmHg to less than 15 mmHg. The limit is 10 seconds.
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). The pressure-offset value must be -15384 to 15384.
Verify that Spot Vital Signs successfully performs an auto zero.
Adjust the pressure gain value until the pressure deviation from the applied pressure is
less than 0.1 mmHg. Continue to utilize the following formula until the pressure is less
than 0.1 mmHg. (Applied pressure / Unit pressure) ( pressure gain value. The pressure
gain value must be 1000 to 31767.
When the pressure transducer calibration is performed (only when successful), a
calibration signature (four printable characters) and the calibration date/time is stored in
the Spot Vital Signs memory - any of four printable characters.
Pneumatic accuracy test
Enter the Internal Configuration Mode to perform this test (see “Internal configuration
mode” on page 20).
Perform an Auto-zero before starting this test (“To verify the blood pressure calibration:”,
Step 1 on page 27 through Step 4 on page 27). The Pneumatic Accuracy test is defined as
the comparison of Spot Vital Signs pressure measurement and applied pressure at 0, 50,
150, and 250 mmHg. The specification for each reading is within ±3 mmHg of the target
pressure except for the 0 mmHg reading which is within ±1.0 mmHg.
Valve control test
Connect a 100 cc cylinder to the Spot Vital Signs pressure port and pressurize to 160
mmHg. Give Spot Vital Signs the commands to open the valve for 10 mmHg/s, 15 mmHg/
s, and 25 mmHg/s. Record each pressure drop: 4 to 12 mmHg, 4 to 15 mmHg, and 4 to
25mmHg, respectively.
Voltage calibration
Calibrate the Spot Vital Signs battery voltage measurement circuit at 5.5 Vdc (+0.1/-0.0
Vdc). Verify the battery calibration factor is 14,384 to 18,384. (?)
After performing a successful battery measurement circuit calibration, Spot Vital Signs
memory will store a calibration signature of up to four printable characters.
Blank mode current test
The Blank Mode Current Test is defined as the amount of current drawn through the
battery terminals. All LCD segments, the back light, and the SpO2 mode are all turned off.
The limit is 200 mA maximum.
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. The limit is 700 mA maximum.
Interface test
When given the proper commands, the Display Window will turn on or off all segments
and turn on or off the back light. When given the proper command, the buzzer sounds to
verify operation. The user determines the pass/fail criteria.
Temperature option requirements
Accuracy test
Verify the accuracy of the temperature module is within ±0.2° F for readings with a nomal
temperature of 97.3° F (36.3° C) using a Cal Key (5200-25). Verify Spot Vital Signs can read
a temperature of 96.4° F (35.8° C) and 106° F (41.1° C) within ±0.3° F/±0.2° C using a
Welch Allyn 9600 Plus Calibrator.
If using a water bath to take temperatures, verify the bath themperature is between 84° F
and 106°F/28.8°C and 41.1°C. The reading must agree within (±1.0° F/0.8° C) measuring
against a temperature stated that is accurate to within (±1.0° F/0.8° C).
Temperature probe test
Spot Vital Signs displays “188.8” and then “ORL” after you remove the oral probe from
the probe housing.
SpO2 option requirements
These tests are only valid on Spot Vital Signs models with the Masimo or Nellcor SpO2
option.
SpO2 functional test
See “Masimo” or “Nellcor” starting on page 24 for the functional test.
SpO2 mode current test
The SpO2 Mode Current Test is defined as the amount of current, less the Blank Mode
Current, that is drawn through the battery terminals, placing Spot Vital Signs in the Blank
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. One-Piece Cuff
Durable Cuff
Disposable Cuff
Catalog #
Description
Catalog #
Description
5082-203-3
One-piece cuff, small child, one tube
5082-93-3
One-piece cuff, small child, one tube (box of 5)
5082-204-3
One-piece cuff, child, one tube
5082-94-3
One-piece cuff, child, one tube (box of 5)
5082-205-3
One-piece cuff, small adult, one tube
5082-95-3
One-piece cuff, small adult, one tube (box of 5)
5082-206-3
One-piece cuff, adult, one tube
5082-96-3
One-piece cuff, adult, one tube (box of 5)
5082-207-3
One-piece cuff, large adult, one tube
5082-97-3
One-piece cuff, large adult, one tube (box of 5)
5082-208-3
One-piece cuff, thigh adult, one tube
5082-98-3
One-piece cuff, thigh, one tube (box of 5)
Table 3. Replacement Cuffs and Bladders
Catalog #
Description
Catalog #
Description
5200-04
Adult Bladder, one tube
5082-01
Adult cuff (sleeve)
5200-05
Large Adult Bladder, one tube
5082-16
Large adult cuff (sleeve)
5200-06
Child Bladder, one tube
5082-18
Child cuff (sleeve)
5200-11
Thigh Bladder, one tube
5082-64
Thigh cuff (sleeve)
Table 4. Miscellaneous Blood Pressure Accessories
Catalog #
Description
Catalog #
Description
5200-12
Straight Pressure Hose (8ft./2.4M)
5200-08
Calibration T-Connector
5200-19
Straight Pressure Hose (5ft./1.5M)
78
Supplies and Accessories
Welch Allyn Spot Vital Signs
Pulse oximetry accessories and supplies
Masimo
Table 5. Adhesive Sensors: Single-Patient Use
Catalog #
Description
Weight Range
LNCS-ADTX
Adhesive Finger Sensor - Adult (20 per case)
LNCS-PDTX
Adhesive Finger Sensor - Pediatric (20 per case)
10 to 50 kg
LNCS INF-L
Adhesive Finger Sensor - Infant (20 per case)
3 to 20 kg
LNOP-ADT
Adhesive Adult sensor (20 per case)
>66 lbs (30 kg)
LNOP-PDT
Adhesive Pediatric sensor (20 per case)
22 to 110 lbs
(10 to 50 kg)
LNOP INF-L
Adhesive Infant sensor (20 per case)
>30 kg
3 to 20 kg
Table 6. Reusable Sensor
Catalog #
Description
Weight Range
Quantity
LNCS-DCI
Finger sensor - adult
>66 lbs (30 kg)
1
LNCS-DCIP
Finger sensor - pediatric
10 to 50 kg
1
LNOP-DCI
Finger sensor - adult
>66 lbs (30 kg)
1
LNOP-DCIP
Finger sensor - pediatric
10 to 50 kg
1
Weight Range
Quantity
Table 7. Sensor Cables
Catalog #
Description
LNC-4-WA
4-foot cable with DB-9 connector for LNCS
NA
1
LNC-10-WA
10-foot cable with DB-9 connector for LNCS
NA
1
PC-04-WA
4-foot cable with DB-9 connector for LNOP
NA
1
PC-08-WA
8-foot cable with DB-9 connector for LNOP
NA
1
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. OxiMax OxiCliq® Sensors: Reusable cable
Catalog #
OC-3
OXICLIQ PI
Description
OxiCliq sensor cable (3 ft)
Pediatric oxygen transducer, user with OC-3 cable
1
10 - 50 kg
Case of 24
Weight Range
Quantity
>40 kg
1
<3 kg or >40 kg
1 sensor/50 wraps
3 - 40 kg
1 sensor/50 wraps
Table 10. OxiMax Reusable Sensors
Catalog #
Description
® adult oxygen transducer
DS-100A
Durasensor
OXI-A/N
Oxiband® OXI-A/N, adult/neonatal* transducer
OXI-P/I
Oxiband OXI-P/I, pediatric/infant transducer
® oxygen transducer
D-YS
Dura-Y
>1 kg
1 sensor/40 wraps
D-YSE
Ear clip (use with Dura-Y sensor)
>30 kg
1
3 - 40 kg
1
D-YSPD
PediCheck™ pediatric spot-check sensor (use with
Dura-Y sensor)
Table 11. OxiMax Sensor Cables
Catalog #
Description
Quantity
DEC-4
SpO2 extension cable, 4 ft.
1
DEC-8
SpO2 extension cable, 8 ft.
1
* The Welch Allyn Spot Vital Signs is not intended for use on neonatal patients.
79
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. Accessories and Supplies
Catalog #
Description
Catalog #
Description
4200-60
Mobile Stand
4200-64
IV Pole Mount
4200-62
Wall Mount
4200-70
Anti-Theft Kit
Extended warranty
Table 14. One-year extended warranty
Catalog #
Description
Catalog #
Description
4200-00B
Model 4200B
4200-M0B
Model 42M0B
4200-OTB
Model 420TB
4200-NTB
Model 42NTB
4200-N0B
Model 42N0B
4200-MTB
Model 42MTB
Service Manual
Supplies and Accessories
81
Miscellaneous
Table 15. Accessories and Supplies
Catalog #
Description
Catalog #
Description
4200-84
Lead Acid Battery
5200-101A
AC Power Transformer (US/Canada/Japan)-120V,
60Hz
4200-87X*
Directions for Use
5200-103A
AC Power Transformer (Europe/UK) -240V, 50Hz
4200-88X*
Quick Reference/Error Code Card
5200-103Z
AC Power Transformer (Australia) - 240V, 50Hz
4200-155
Inservice CD (English only)
76400
Line Cord (US/Canada/Japan)
4200-89E
Service Manual (English only)
76402
Line Cord (Europe)
4200-100
Carrying Case
76404
Line Cord (UK)
4200-170
Connectivity Accessory Kit
76406
Line Cord (Australia)
53600
Printer paper (24 rolls)
4200-250
Pediatric accessory kit (small child, child, small adult
cuffs and Nellcor SpO2 sensor)
53600B
Printer paper (4 rolls)
4200-350
Pediatric accessory kit (small child, child, small adult
cuffs and Masimo SpO2 sensor)
* Replace the “X” with the following letter abbreviation to order the appropriate language
manual.
Table 16. Printed Material Language List
Language
Language
Abbreviation
Language
Language
Abbreviation
Language
Language
Abbreviation
E
English
G
Deutsch
PO
Polish
C
Chinese
I
Italiano
P
Português
DK
Dansk
N
Norsk
S
Español
F
Français
NL
Nederlands
SW
Svensk
FI
Suomi
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.
See Directions for use.
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.
4. Remove the wire
clamp screw and save
it for later use.
5. Place the transformer
onto the mounting
plate.
6. Place the wire clamp
over the transformer
and hook the two
ends into the slots.
The ends must slip
underneath the plate.
7. Replace the screw
and firmly tighten it
down so that the
clamp is secure.
87
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. Press
firmly to secure adhesive.
(Note: Max adhesive strength achieved in 24 hours.)
CAUTION: DO NOT Download any drivers
during the installation process for this
IR Rs232 device. Drivers are not required
and will interfere with communication
between the device and the
Electronic Medical Record.
Material #: 705633 Rev. B
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. Welch Allyn will either repair or replace any
components found to be defective or at variance from manufacturer's specifications
within this time at no cost to the customer. It shall be the purchaser's responsibility to
return Spot Vital Signs to Welch Allyn or an authorized distributor, agent, or service
representative. This warranty does not include breakage or failure due to tampering,
misuse, neglect, accidents, modification, or shipping. This warranty is also void if the
instrument is not used in accordance with manufacturer's recommendations or if repaired
by other than Welch Allyn or an authorized agent. Purchase date determines warranty
requirements. No other express warranty is given.
Remember to submit the instrument registration/warranty card for warranty validation.
Complete the information and mail the pre-addressed card to Welch Allyn.
Accessories
The Masimo finger sensor and cable are covered by a six-month warranty against original
defects in material or workmanship.
The Nellcor DS-100A is covered by a one-year warranty and the Nellcor DEC-4 cable is
covered by a three-month warranty against original defects in material or workmanship.
The Reusable Two-Piece Blood Pressure Cuff is covered by a two-year warranty against
original defects in material or workmanship.
The SureTemp probe is covered by a one-year warranty against original defects in material
and workmanship. Probe covers are intended for single-use only.
.
90
Warranty
Welch Allyn Spot Vital Signs
Reorder No. 4200-89E
Material No. 718448 Ver A
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