Welch Allyn WAM PC User manual

Welch Allyn®
WAM™ PC
WIRELESS ACQUISITION MODULE WITH
MEMORY
USER MANUAL
Manufactured by Welch Allyn. Inc., Skaneateles Falls, NY USA
CAUTION: Federal law restricts this device to sale by or on the order of a physician.

© 2020 Welch Allyn This document contains confidential information that belongs to Welch Allyn, Inc. No
part of this document may be transmitted, reproduced, used, or disclosed outside of the receiving
organization without the express written consent of Welch Allyn, Inc. Welch Allyn is a registered
trademark of Welch Allyn, Inc. ELI and WAM are trademarks of Welch Allyn, Inc. Adobe, Acrobat,
Microsoft, and Windows are trademarks or registered trademarks of their respective owners.
For patent information, please visit www.welchallyn.com/patents
For information about any Welch Allyn product, visit: https://www.welchallyn.com/en/about-us/locations.html
Customer Service and Technical Support: https://www.welchallyn.com/en/other/contact-us.html
1.888.667.8272, mor_tech.su[email protected].
9515-180-50-ENG Rev D
Revision date: 2020-04
EU IMPORTER
Welch Allyn, Inc.
4341 State Street Road
Skaneateles Falls, NY 13153 USA
www.welchallyn.com
Welch Allyn Limited
Navan Business Park, Dublin Road,
Navan, Co. Meath C15 AW22
Ireland

Page | 1
TABLE OF CONTENTS
NOTICES................................................................................................................................................................. 3
MANUFACTURER’S RESPONSIBILITY....................................................................................................................................3
RESPONSIBILITY OF THE CUSTOMER....................................................................................................................................3
EQUIPMENT IDENTIFICATION ............................................................................................................................................3
COPYRIGHT AND TRADEMARK NOTICES ..............................................................................................................................3
NOTICE TO EU USERS AND/OR PATIENTS:...........................................................................................................................3
OTHER IMPORTANT INFORMATION ....................................................................................................................................4
IEC CLASSIFICATION........................................................................................................................................................4
FCC COMPLIANCE STATEMENT .........................................................................................................................................4
INDUSTRY CANADA COMPLIANCE STATEMENT .....................................................................................................................4
ELECTROMAGNETIC COMPATIBILITY (EMC) ........................................................................................................... 6
GUIDANCE AND MANUFACTURER’S DECLARATION:ELECTROMAGNETIC EMISSIONS....................................................................6
GUIDANCE AND MANUFACTURER’S DECLARATION:ELECTROMAGNETIC IMMUNITY ....................................................................7
GUIDANCE AND MANUFACTURER’S DECLARATION:ELECTROMAGNETIC IMMUNITY ....................................................................8
WARRANTY INFORMATION ................................................................................................................................. 11
YOUR WELCH ALLYN WARRANTY ....................................................................................................................................11
USER SAFETY INFORMATION ............................................................................................................................... 12
EQUIPMENT SYMBOLS AND MARKINGS .............................................................................................................. 15
CARE AND MAINTENANCE ................................................................................................................................... 16
PRECAUTIONS..............................................................................................................................................................16
INSPECTION.................................................................................................................................................................16
CLEANING AND DISINFECTING.........................................................................................................................................16
INTRODUCTION ................................................................................................................................................... 17
MANUAL PURPOSE.......................................................................................................................................................17
MANUAL AUDIENCE .....................................................................................................................................................17
WAM PC DESCRIPTION................................................................................................................................................17
WAM PC WITH LEAD WIRES .........................................................................................................................................17
SPECIFICATIONS ...........................................................................................................................................................18
WAM /UTK..............................................................................................................................................................18
USING THE WAM PC ............................................................................................................................................ 19
REPLACING THE BATTERY ...............................................................................................................................................19
ATTACHING THE LEAD WIRE CONNECTOR BLOCK................................................................................................................19
TURNING THE WAM PC ON AND OFF .............................................................................................................................19
PAIRING THE WAM PC TO A UTK...................................................................................................................................19
PREPARING THE WAM PC FOR A NEW ACQUISITION..........................................................................................................19
PREPARING THE PATIENT ...............................................................................................................................................19
PREPARING THE PATIENT’S SKIN......................................................................................................................................20
ELECTRODE POSITIONS ..................................................................................................................................................21
WAM PC STATUS INDICATORS.......................................................................................................................................22
CLINICAL WORKFLOW.......................................................................................................................................... 23

TABLE OF CONTENTS
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ACQUIRING ECG WAVEFORMS.......................................................................................................................................23

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NOTICES
Manufacturer’s Responsibility
Welch Allyn, Inc. is responsible for the effects on safety and performance only if:
Assembly operations, extensions, readjustments, modifications, or repairs are carried out only by
persons authorized by Welch Allyn, Inc., and
The electrical installation of the relevant room complies with the requirements of appropriate
regulations, and
The device is used in accordance with the instructions for use.
Responsibility of the Customer
The user of this device is responsible for ensuring the implementation of a satisfactory maintenance
schedule. Failure to do so may cause undue failure and possible health hazards.
Equipment Identification
Welch Allyn, Inc. equipment is identified by a serial and reference number on the back of the device.
Care should be taken so that these numbers are not defaced.
For questions and service information, have both serial and part numbers available when calling.
The Model name (MODEL:), Serial Number (SN:), Lot Number (LOT:), Reference Number (REF:), and
FDA Unique Device Identifier (UDI) are found on the back label of the devices similar to the ones pictured
below.
Copyright and Trademark Notices
This document contains information that is protected by copyright. All rights are reserved. No part of this
document may be photocopied, reproduced, or translated to another language without prior written
consent of Welch Allyn, Inc.
Notice to EU Users and/or Patients:
Any serious incident that has occurred in relation to the device, should be reported to the manufacturer
and the competent authority of the Member State in which the user and/or patient is established.
SN: xxxxxxxxxx
REF: xxxxx-xxx-xx
(UDI) (xx)xxxxxxxxx

NOTICES
Page | 4
Other Important Information
The information in this document is subject to change without notice.
Welch Allyn, Inc. makes no warranty of any kind with regard to this material including, but not limited to,
implied warranties of merchantability and fitness for a particular purpose. Welch Allyn, Inc. assumes no
responsibility for any errors or omissions that may appear in this document. Welch Allyn, Inc. makes no
commitment to update or to keep current the information contained in this document.
IEC Classification
As defined by IEC 60601-1 and IEC 60601-2-25, the device (WAM PC) is classified as follows:
Internally powered equipment.
Type CF defibrillation-proof applied parts.
Ordinary equipment.
Equipment not suitable for use in the presence of a flammable anesthetic mixture.
Continuous operation.
FCC Compliance Statement
In the United States use of this device is regulated by the Federal Communications Commission (FCC).
The device with its antenna complies with FCC’s RF exposure limits for general population/uncontrolled
exposure.
FCC Warning (Part 15.21): Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the device.
WAM PC FCC ID:
HJR-WAM2500
UTK FCC ID:
HJR-UTK2500
These devices comply with Part 15 of the FCC rules. Operation is subject to the following conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause
undesired operation.
Industry Canada Compliance Statement
These devices comply with RSS-210 of the Industry Canada rules. Operation is subject to the following
two conditions:
1. This device may not cause interference, and
2. This device must accept any interference, including interference that may cause undesired
operation of the device.
WAM PC IC:
3758B-WAM2500
UTK IC:
3758B-UTK2500
The term “IC:” before the certification/registration number only signifies that the Industry Canada technical
specifications were met.

NOTICES
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UL CLASSIFICATION
This device is UL classified:
WITH RESPECT TO ELECTRIC SHOCK,
FIRE AND MECHANICAL HAZARDS ONLY IN ACCORDANCE
WITH UL2601-1, IEC60601-1, CAN/CSA CC22.2 No. 601.1,
AND IEC60601-2-25
WIRELESS DATA TRANSMISSION
The device is equipped with a wireless data transmission module. This technology uses radios to
transmit data to a Welch Allyn receiving application. Due to the nature of radio transmissions, it is
possible that, due to the characteristics of the environment where the device is located, some other RF
sources may interfere with the transmission generated by the device. Welch Allyn has tested the
coexistence of the device with other devices that can interfere such as devices using WLAN, Bluetooth
radio, and/or cell phones. Although the current technology allows a very successful rate of transmission,
it is possible that in some rare occurrences, the system may not perform at its best resulting in a “failed
transmission”. When this occurs, patient data will not be erased from the device nor stored in the
receiving application, ensuring that partial or corrupted data are not made available to the receiving
application. If the failure mode persists the user should move to a position where the RF signals may
propagate better and allow successful transmissions, such as in close proximity to the receiver.
ENVIRONMENTAL SPECIFICATIONS
To prevent possible damage to the device during transport and storage (while in original packaging) the
following environmental conditions must be adhered to:
Ambient Temperature Range:
-20°C to 65°C (-4°F to 149°F)
Relative Humidity Range:
5% to 95% (non-condensing)
Atmosphere Pressure:
500 hPa to 1060 hPa
This device is intended to be used in a hospital or doctor’s office setting, and should be used according to
the environmental conditions specified below:
Ambient Temperature Range:
0°C to 40°C (32°F to 104°F)
Relative Humidity Range:
5% to 95% (non-condensing)
Atmosphere Pressure:
500 hPa to 1060 hPa
DISPOSAL OF WASTE MATERIALS
The WAM PC uses one AA alkaline battery and disposable ECG electrodes. Disposal must be in
accordance with the following procedures:
Battery: applicable disposal or recycling standards
Electrodes: normal waste.

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ELECTROMAGNETIC COMPATIBILITY (EMC)
NOTE: This section applies to the WAM PC and the UTK devices when connected to a computer. This
section does not apply to the computer alone.
Electromagnetic compatibility with surrounding devices should be assessed when using the device.
An electronic device can either generate or receive electromagnetic interference. Testing for
electromagnetic compatibility (EMC) has been performed on the device according to the international
standard for EMC for medical devices (IEC 60601-1-2). This IEC standard has been adopted in Europe
as the European Norm (EN 60601-1-2).
The device should not be used adjacent to, or stacked on top of other equipment. If the device must be
used adjacent to or stacked on top of other equipment, verify that the device operates in an acceptable
manner in the configuration in which it will be used.
Fixed, portable, and mobile radio frequency communications equipment can affect the performance of
medical equipment. See the table below for recommended separation distances between the radio
equipment and the device.
The use of accessories and cables other than those specified below, may result in increased emissions or
decreased immunity of the device.
Guidance and Manufacturer’s Declaration: Electromagnetic Emissions
The equipment is intended for use in the electromagnetic environment specified in the table below. The
customer or the user of the equipment should ensure that it is used in such an environment.
Emissions Test
Compliance
Electromagnetic Environment: Guidance
RF Emissions
CISPR 11
Group 2
The equipment must emit electromagnetic energy in order to
perform its intended function. Nearby electronic equipment may
be affected.
RF Emissions
CISPR 11
Class A
The equipment is suitable for use in all establishments other
than domestic establishments and those directly connected to
the public low-voltage power supply network that supplies
buildings used for domestic purposes.
Harmonic Emissions
IEC 61000-3-2
Complies
Voltage Fluctuations/
Flicker Emissions
IEC 61000-3-3
Complies

ELECTROMAGNETIC COMPATIBILITY (EMC)
Page | 7
Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
The equipment is intended for use in the electromagnetic environment specified in the table below. The
customer or the user of the equipment should ensure that it is used in such an environment.
Emissions Test
Compliance
Compliance Level
Electromagnetic Environment: Guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
+/- 6 kV contact
+/- 8 kV air
+/- 6 kV contact
+/- 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/burst
IEC 61000-4-4
+/- 2 kV for
power supply lines
+/- 1 kV for
input/output lines
+/- 2 kV for
power supply lines
+/- 1 kV for
input/output lines
Mains power quality should be that of a
typical commercial or hospital environment.
Surge
IEC 61000-4-5
+/- 1 kV differential
mode
+/- 2 kV common
mode
+/- 1 kV differential
mode
+/- 2 kV common
mode
Mains power quality should be that of a
typical commercial or hospital environment.
Voltage dips,
short
interruptions,
and voltage
variations on
power supply
input lines
IEC 61000-4-11
<5% UT
(>95% dip in UT)
for 0.5 cycle
40% UT
(60% dip in UT)
for 5 cycles
<5% UT
(>95% dip in UT)
for 0.5 cycle
40% UT
(60% dip in UT)
for 5 cycles
Mains power quality should be that of a
typical commercial or hospital environment.
Power frequency
(50/60 Hz)
magnetic field
3 A/m
3 A/m
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.

ELECTROMAGNETIC COMPATIBILITY (EMC)
Page | 8
Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
The equipment is intended for use in the electromagnetic environment specified in the table below. The
customer or the user of the equipment should ensure that it is used in such an environment.
Emissions Test
IEC 60601 Test
Level
Compliance
Level
Electromagentic Environment: Guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to
80 MHz
3 Vrms
150 kHz to
80 MHz
Portable and mobile RF communications equipment
should be used no closer to any part of the equipment,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
P
Vrms
d





35.3
P
mV
d





/3 5.3
80 MHz to 800 MHz
P
mV
d





/3 7
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 meters (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site surveya, should
be less than the compliance level in each frequency
rangeb.
Interference may occur in the vicinity of equipment
marked with the following symbol:
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 V/m
80 MHz to
2.5 GHz
a) Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radios, 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 equipment is used exceeds the
applicable RF compliance level above, the equipment should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the equipment.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [3] V/m.

ELECTROMAGNETIC COMPATIBILITY (EMC)
Page | 9
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF
COMMUNICATIONS EQUIPMENT AND THE EQUIPMENT
The equipment is intended for use in the electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the equipment can help to prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the equipment as recommended in the table below, according to the
maximum output power of the communications equipment.
Rated Maximum Output Power
of Transmitter W
Separation Distance According to Frequency of Transmitter (m)
150 KHz to 800 MHz
800 MHz to 2.5 GHz
Pd 2.1
Pd 3.2
0.01
0.1 m
0.2 m
0.1
0.4 m
0.7 m
1
1.2 m
2.3 m
10
4.0 m
7.0 m
100
12.0 m
23.0 m
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 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 the absorption and reflection from structures, objects, and people.

ELECTROMAGNETIC COMPATIBILITY (EMC)
Page | 10

Page | 11
WARRANTY INFORMATION
Your Welch Allyn Warranty
WELCH ALLYN, INC (hereinafter referred to as “Welch Allyn”) hereby warrants that Welch Allyn products
(hereinafter referred to as “Product/s”) shall be free from defects in material and workmanship under normal
use, service, and maintenance for the warranty period of such Product/s from Welch Allyn or an authorized
distributor or representative of Welch Allyn. The warranty period is defined as twelve (12) months following
the date of shipment from Welch Allyn. Normal use, service, and maintenance means operation and
maintenance in accordance with appropriate instructions and/or information guides. This warranty does
not apply to damage to the Product/s caused by any or all of the following circumstances or conditions:
a) Freight damage;
b) Parts and/or accessories of the Product/s not obtained from or approved by Welch Allyn;
c) Misapplication, misuse, abuse, and/or failure to follow the Product/s instruction sheets and/or
information guides;
d) Accident; a disaster affecting the Product/s;
e) Alterations and/or modifications to the Product/s not authorized by Welch Allyn;
f) Other events outside of Welch Allyn’s reasonable control or not arising under normal operating
conditions.
THE REMEDY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT WITHOUT
CHARGE FOR LABOR OR MATERIALS, OR ANY PRODUCT/S FOUND UPON EXAMINATION BY
WELCH ALLYN TO HAVE BEEN DEFECTIVE. This remedy shall be conditioned upon receipt of notice by
Welch Allyn of any alleged defects promptly after discovery thereof within the warranty period. Welch
Allyn’s obligations under the foregoing warranty will further be conditioned upon the assumption by the
purchaser of the Product/s (i) of all carrier charges with respect to any Product/s returned to Welch Allyn’s
principal place or any other place as specifically designated by Welch Allyn or an authorized distributor or
representative of Welch Allyn, and (ii) all risk of loss in transit. It is expressly agreed that the liability of
Welch Allyn is limited and that Welch Allyn does not function as an insurer. A purchaser of a Product/s, by
its acceptance and purchase thereof, acknowledges and agrees that Welch Allyn is not liable for loss, harm,
or damage due directly or indirectly to an occurrence or consequence therefrom relating to the Product/s.
If Welch Allyn should be found liable to anyone under any theory (except the expressed warranty set forth
herein) for loss, harm, or damage, the liability of Welch Allyn shall be limited to the lesser of the actual loss,
harm, or damage, or the original purchase price of the Product/s when sold.
EXCLUDED FROM THE LIMITED WARRANTY SET FORTH ABOVE ARE CONSUMABLE ITEMS SUCH
AS PAPER, BATTERIES, ELECTRODES, PATIENT CABLES, LEAD WIRES, AND MAGNETIC
STORAGE MEDIUMS.
EXCEPT AS SET FORTH HEREIN WITH RESPECT TO REIMBURSEMENT OF LABOR CHARGES, A
PURCHASER’S SOLE EXCLUSIVE REMEDY AGAINST WELCH ALLYN FOR CLAIMS RELATING TO
THE PRODUCT/S FOR ANY AND ALL LOSSES AND DAMAGES RESULTING FROM ANY CAUSE
SHALL BE THE REPAIR OR REPLACEMENT OF DEFECTIVE PRODUCT/S TO THE EXTENT THAT
THE DEFECT IS NOTICED AND WELCH ALLYN IS NOTIFIED WITHIN THE WARRANTY PERIOD. IN
NO EVENT, INCLUDING THE CLAIM FOR NEGLIGENCE, SHALL WELCH ALLYN BE LIABLE FOR
INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, OR FOR ANY OTHER LOSS, DAMAGE, OR
EXPENSE OF ANY KIND, INCLUDING LOSS OF PROFITS, WHETHER UNDER TORT, NEGLIGENCE
OR STRICT LIABILITY THEORIES OF LAW, OR OTHERWISE. THIS WARRANTY IS EXPRESSLY IN
LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE
IMPLIED WARRANTY OF MERCHANTABILITY AND THE WARRANTY OF FITNESS FOR A
PARTICULAR PURPOSE.

Page | 12
USER SAFETY INFORMATION
WARNING
:
Means there is the possibility of personal injury to you or others.
Caution
:
Means there is the possibility of damage to the device.
Note
Provides information to further assist in the use of the device.
WARNINGS
This manual gives important information about the use and safety of this device. Deviating from
operating procedures, misuse or misapplication of the device, or ignoring specifications and
recommendations could result in increased risk of harm to users, patients and bystanders, or damage
to the device.
Device captures data reflecting a patient’s physiological condition that when reviewed by a trained
physician or clinician can be useful in determining a diagnosis; however, the data should not be used
as a sole means for determining a patient’s diagnosis.
Users are expected to be licensed clinical professionals knowledgeable about medical procedures
and patient care, and adequately trained in the use of this device. Before attempting to use this
device for clinical applications, the operator must read and understand the contents of the user
manual and other accompanying documents. Inadequate knowledge or training could result in
increased risk of harm to users, patients and bystanders, or damage to the device.
To maintain designed operator and patient safety, peripheral equipment and accessories used that
can come in direct patient contact must be in compliance with UL 60601-1, IEC 60601-1, and IEC
60601-2-25. Only use parts and accessories supplied with the device and available through Welch
Allyn, Inc
Patient cables intended for use with the device include series resistance (7 Kohm minimum) in each
lead for defibrillation protection. Patient cables should be checked for cracks or breakage prior to
use.
Conductive parts of the patient cable, electrodes, and associated connections of type CF applied
parts, including the neutral conductor of the patient cable and electrodes, should not come into
contact with other conductive parts including earth ground.
ECG electrodes could cause skin irritation; patients should be examined for signs of irritation or
inflammation.
To avoid the possibility of serious injury or death during patient defibrillation, do not come into contact
with device or patient cables. Additionally, proper placement of defibrillator paddles in relation to the
electrodes is required to minimize harm to the patient.
To avoid potential for spread of disease or infection, single-use disposable components (e.g.,
electrodes) must not be reused. To maintain safety and effectiveness, electrodes must not be used
beyond their expiration date.

USER SAFETY INFORMATION
Page | 13
This device was designed to use the electrodes specified in this manual. Proper clinical procedure
must be employed to prep the electrode sites and to monitor the patient for excessive skin irritation,
inflammation, or other adverse reactions. Electrodes are intended for short-term use and should be
removed from the patient promptly following testing.
A possible explosion hazard exists. Do not use the device in the presence of a flammable anesthetic
mixture.
The computer used with the UTK should conform to international safety standards for information
technology equipment such as IEC 90950. Unless suitable electrical safety measures are taken, as
indicated in IEC 60601-1-1, the computer must not be in a position such that the operator can touch it
and the patient at the same time.
The device has not been designed for use with high-frequency (HF) surgical equipment and does not
provide a protective means against hazards to the patient.
The quality of the signal produced by the device may be adversely affected by the use of other
medical equipment, including but not limited to defibrillators and ultrasound machines.
For proper operation and the safety of users or patients and bystanders, equipment and accessories
must be connected only as described in this manual.
There is no known safety hazard if other equipment, such as pacemakers or other stimulators, is
used simultaneously with the device; however, disturbance to the signal may occur.
Operations may be affected in the presence of strong electromagnetic sources such as electro
surgery equipment.
Use only recommended battery cells. Use of other cells may present a risk of fire or explosion.
Low battery warning function is designed for alkaline battery cells only. Use of other cells may result
in failure of the low battery warning possibly resulting in a malfunction of the device.
Patient movements may generate excessive noise that may affect the quality of the ECG traces and
the proper analysis performed by the device.
CAUTIONS
Do not attempt to clean the device or patient cables by submersing into a liquid,
autoclaving, or steam cleaning as this may damage equipment or reduce its usable life. Wipe the
exterior surface with a warm water and mild detergent solution and then dry with a clean cloth. Use
of unspecified cleaning/disinfecting agents, failure to follow recommended procedures, or contact with
unspecified materials could result in increased risk of harm to users, patients and bystanders, or
damage to the device.
The device and lead wires should be cleaned between each use. Inspect connections for damage or
excessive wear prior to each use. Replace lead wires if damage or excessive wear is noted.
Do not pull or stretch patient cables as this could result in mechanical and/or electrical failures. Lead
wires should be stored after forming them into a loose loop.
The WAM PC will only work with the Welch Allyn UTK receiving devices that is equipped with the
appropriate software.
No user-serviceable parts are inside. Screw removal by qualified service personnel only. Damaged
or suspected inoperative equipment must be immediately removed from use and must be
checked/repaired by qualified service personnel prior to continued use.

USER SAFETY INFORMATION
Page | 14
This device is not recommended for use in the presence of imaging equipment such as Magnetic
Resonance Imaging (MRI) and Computed Tomography (CT) devices, etc.
The following equipment may cause interference with the RF channel: microwave ovens, diathermy
units with LANs (spread spectrum), amateur radios, and government radar.
No calibration or special equipment is needed for the proper operation or maintenance of the device.
When necessary, dispose of the device, its components and accessories (e.g., batteries, cables,
electrodes), and/or packing materials in accordance with local regulations.
AA batteries are known to leak their contents when stored in unused equipment. Remove battery
from device when not used for an extended period of time.
FCC Warning (Part 15.21): Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the device.
Electromagnetic compatibility with surrounding devices should be assessed when using the device.
See ELECTROMAGNETIC COMPATIBILITY (EMC) for guidance.
Do not sterilize the device or patient cables with Ethylene Oxide (EtO) gas.
Improper cleaning products and processes can damage the device, produce brittle lead wires and
cables, corrode the metal, and void the warranty. Use care and proper procedure whenever cleaning
or maintaining the device.
Do not immerse the device in water.
Do not use organic solvents, ammonia-based solutions, or abrasive cleaning agents which may
damage equipment surfaces.
Proper function backup items such as spare lead wires, front-end device, and other equipment are
recommended on hand to prevent delayed treatment due to an inoperable device.
NOTES
Proper patient preparation is important to proper application of ECG electrodes and operation of the
device.
If electrode is not properly connected to the patient, or one or more of the patient cable lead wires is
damaged, the WAM PC will indicate a lead fault. If this occurs during waveform acquisition, the WAM
PC may not be able to collect enough good quality waveforms within 60 seconds and the acquisition
will have to be repeated after fixing the lead fault condition.
This device will automatically turn off when the battery has been depleted.

Page | 15
EQUIPMENT SYMBOLS AND MARKINGS
CAUTION The caution statements in this manual identify conditions or practices
that could result in damage to the equipment or other property, or loss of data..
WARNING The warning statements in this manual identify conditions or practices
that could lead to illness, injury, or death. In addition, when used on a patient
applied part, this symbol indicates defibrillation protection is in the cables. Warning
symbols will appear with a grey background in a black and white document.
Defibrillator-proof type CF applied part.
Acquire 12 Lead ECG waveforms button.
Power on / off button.
Battery orientation with notification: see operating instructions for type of cell to be
used.
Do not dispose as unsorted municipal waste. Per EC Directive 2002/96, requires
separate handling for waste disposal according to national requirements.
Indicates compliance to applicable EEC directives.
Japanese GITEKI (MIC) technical conformity mark for radio equipment.
Device manufacturer.
Device is UL classified.
Non-ionizing electromagnetic radiation
Follow instructions/directions for use (DFU) -- mandatory action. A copy of the DFU
is available on this website. A printed copy of the DFU can be ordered from Welch
Allyn for delivery within 7 calendar days.
Medical Device
Model Identifier
Reorder Number

Page | 16
CARE AND MAINTENANCE
Precautions
•Turn off the device before inspecting or cleaning.
•Do not immerse the device in water.
•Do not use organic solvents, ammonia-based solutions, or abrasive cleaning agents which
may damage equipment surfaces.
Inspection
1. Inspect your equipment daily prior to operation. If you notice anything that requires repair, contact
an authorized service person to make the repairs. Verify that all cords and connectors are
securely seated.
2. Check the case and chassis for any visible damage.
3. Inspect cords and connectors for any visible damage.
4. Inspect keys and controls for proper function and appearance.
Cleaning and Disinfecting
5. Disconnect the power source. Remove cables and lead wires from device before cleaning.
6. For general cleaning of cables and lead wires, use a soft, lint-free cloth lightly moistened with a
mild detergent and water solution. Wipe and air dry.
7. For disinfecting the exterior surfaces of the device, patient acquisition module, cables and lead
wires, wipe exterior using:
Clorox Healthcare® Bleach Germicidal Wipes or a soft, lint-free cloth with a dilute solution of sodium
hypochlorite. Assuming household bleach has a 5.25% concentration of sodium hypochlorite (50,000
ppm free chlorine), use nothing more concentrated than a 10% bleach solution (1:10 dilution, or 1-part
bleach to 9 parts water, yielding 5,000 ppm free chlorine) as recommended by the APIC Guidelines for
Selection and Use of Disinfectants.
CAUTIONS
Use Clorox Healthcare® Bleach Germicidal Wipes according to instructions on product label.
Prevent liquid from penetrating the device and do not attempt to clean/disinfect the device or patient
cables by submerging into a liquid, autoclaving, or steam cleaning. Do not expose cables to strong ultra-
violet radiation. Do not sterilize the device or lead wires with Ethylene Oxide (EtO) gas. Do not immerse
cable ends or lead wires; immersion can cause metal corrosion. Use caution with excess liquid as contact
with metal parts may cause corrosion. Do not use excessive drying techniques such as forced heat.
Improper cleaning products and processes can damage the device, produce brittle lead wires and cables,
corrode the metal, and void the warranty. Use care and proper procedure whenever cleaning or
maintaining the device.
TEST OPERATION
After cleaning and inspecting the device, proper operation of the unit may be confirmed by using an ECG
simulator to acquire, display, and print a standard 12-lead ECG of known amplitude using a test protocol.
Waveforms should appear normal with proper amplitude and without distortion or excess noise.

Page | 17
INTRODUCTION
Manual Purpose
This manual provides instructions for using the WAM PC to collect resting ECG waveforms from patients.
It also provides instructions for care and maintenance of the WAM PC.
Manual Audience
This manual is written for clinical professionals who have a working knowledge of medical procedures
and terminology as required for acquiring resting ECGs from patients.
WAM PC Description
The WAM PC is a resting ECG acquisition module with memory. It does not need to be connected to a
full-featured electrocardiograph while it records ECG waveforms from a patient. It is simply attached to a
patient and used to acquire 60 seconds of raw ECG waveforms into its memory. Once it has 60 seconds
of data, it is placed near a computer with a USB Transceiver Key (UTK). A software application is used to
wirelessly copy the waveforms from the module. After the waveforms have been copied, its memory is
erased so it is ready for another ECG recording.
The following equipment is needed to collect resting ECG waveforms with the WAM PC:
WAM PC
One AA alkaline battery, 1.5V
USB Transceiver Key (UTK)
10 lead wire set
10 ECG electrodes per acquisition
Software application compatible with WAM PC, e.g. WebUpload, ELI PC
Windows computer to host the software application with one USB port for UTK
WAM PC with Lead Wires
APPROVED BATTERY TYPES
Any alkaline, AA, 1.5V battery may be used.
WARNING: Other types of batteries may present a risk of fire or explosion.
Acquire ECG 12-lead
ECG Waveforms
Lead-wire Blocks
Battery
Compartment Cap
Power Button
Status LED

INTRODUCTION
Page | 18
Specifications
Feature
Specification*
Instrument Type
12-lead wireless acquisition module with memory for resting
ECG
Input Channels
8 channels: LA –RA, LL –RA, Vx–RA (where xis 1 –6)
ECG Leads Acquired
I, II, III, aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6
WAM PC Transmission Protocol
Bidirectional and frequency hopping; beacon and response
method links a single WAM PC to a single UTK
Frequency Range
2400.96 MHz to 2482.56 MHz
Maximum WAM PC / UTK Distance
10 feet / 3 meters
10 Wire Lead Set
RA, LA, RL, LL, V1, V2, V3, V4, V5, and V6 (R, L, N, F, C1, C2,
C3, C4, C5, and C6) with detachable lead wires
Sampling Rate
40,000 samples/second/channel acquisition; 1,000
samples/second/channel analysis and storage
Voltage Resolution
1.875 microvolts
User Interface
Power and acquisition buttons
Feedback with orange/green LED and audible tone for power
status, operating mode, lead fail, and low battery
Defibrillator Protection
Complies with AAMI standards and IEC 60601-2-25
Memory Capacity
60 seconds
Device Classification
Type CF, battery operated
Weight
6.7 oz. (190 g) with battery
Dimensions
4.45 x 4.25 x 1.1” (11.3 x 10.8 x 2.79 cm)
Battery Life
1 AA alkaline battery typically powers WAM PC for acquisition of
250 resting ECGs
*Specifications subject to change without notice.
WAM / UTK
Radio specifications and certification information for the Wireless Acquisition Module (WAM) and USB
Transceiver Key (UTK), can be found in the WAM user manual