Livongo WM1500 User manual
Scale
User Guide
SCALE USER GUIDE 1
MODEL:
WM1500, Body Scale
MANUFACTURED FOR:
Livongo Health, Inc.
150 West Evelyn Ave., Suite 150
Mountain View, CA 94041
LIVONGO MEMBER SUPPORT:
(800) 945-4355
SCALE USER GUIDE 2
Table of Contents
Getting Started
Important Information
Maintenance
Scale Display Codes
Safety Warnings
Technical Information
Symbols
Caution
Battery Installation
Warranty / California Proposition 65 Warning
FCC
EMC Guidance 3
3
4
5
6
8
9
10
11
13
14
15
16
SCALE USER GUIDE 3
Getting Started
The Livongo cellular scale comes ready to use right out of the box.
Your rst-time setup should take only a few minutes.
OPEN THE LIVONGO APP
The app displays all of your weight data
and trends so you can learn how lifestyle
changes affect your weight. You can
download it now from the App Store
or Google Play.
INSERT 4 AA BATTERIES (INCLUDED)
INTO THE SCALE
The battery compartment is located on
the back of the scale.
PLACE THE SCALE ON A
HARD SURFACE
For the most accurate results, put the scale
on a hard oor (no carpet).
TAKE YOUR FIRST WEIGHT MEASUREMENT
Step on the scale with both feet. When you see
your weight on the display, step off. A dotted
line will ash. When it stops, your data has been
successfully sent to the Livongo app.
VIEW YOUR DATA IN THE LIVONGO APP
Check out all your weight data and trends in
the Livongo app.
1 4
2 5
3
SCALE USER GUIDE 4
Step on the scale
with clean, bare feet.
Wear as little clothing
as possible
(or no clothes at all).
Do not bend
your knees when
weighing yourself.
Try to weigh
yourself at the same
time each day
(for example, in the
morning, before you
eat or drink anything).
Important Information
Place the scale on
a hard, at surface
(no carpet).
When you step
off the scale, it
will power off
automatically.
off
SCALE USER GUIDE 5
Maintenance
DO use a dry soft cloth to wipe the dust off of this device.
DO use a wet soft cloth, dipped into water and wrung out, to wipe the dirt off of this device. Then
use a dry soft cloth to dry up the device.
DON’T wash the device with water or immerse it in water.
DON’T use propellant, abrasive, or other chemicals to wipe the dirt off. This can cause the device
to discolor or malfunction.
DON’T disassemble or attempt to service this device. If you have any problems with this device,
please contact Livongo Member Support.
DON’T dispose of batteries in re. Batteries may explode or leak. Remove the batteries if the
device will not be used for a long period of time.
DON’T perform maintenance while device is in use.
SCALE USER GUIDE 6
Scale Display Codes
In the event of an error while taking a weight measurement, an error
message will appear on the scale display.
CODE DESCRIPTION HOW TO RESOLVE
ER1
ER2
ER3
ER4
Low battery error (displayed
during weighing procedure or
after lines go around)
Measurement error (displayed
during weighing procedure)
Overload error (displayed
during weighing procedure)
Cell/network error
(displayed after
lines go around)
1. Check that the batteries are all brand new and not expired.
2. Ensure that the battery compartment is clean and the battery
contact terminals have no foreign material.
1. Make sure you are standing still during the measurement.
2. Ensure that the scale is on a hard, at, and level surface.
3. Take multiple measurements.
The Livongo scale’s maximum capacity is 440 Ib (200 kg).
1. Take another measurement at the EXACT SAME location.
2. Take another measurement at a NEW location, preferably
closer to a window.
3. Take three consecutive measurements.
SCALE USER GUIDE 7
CODE DESCRIPTION HOW TO RESOLVE
ER5
ER6
Connection error (displayed
after lines go around);
network found, unable to
set up data connection
Transmission error (displayed
after lines go around); signal
not strong enough
1. Conrm test at EXACT SAME location.
2. Conrm test at NEW location, preferably closer to a window.
3. Take three consecutive measurements.
1. Take another measurement at the EXACT SAME location.
2. Take another measurement at a NEW location, preferably
closer to a window.
3. Take three successive measurements.
ER7
ER8, 9, 10
ER11
Internal error (displayed after
lines go around)
SIM, Provisioning,
Subscription errors
Terminated (displayed after
lines go around)
Check that the batteries are all brand new and not expired.
Manufacturer connectivity errors; contact
Livongo Member Support.
The scale has been permanently deactivated (requested by user).
SCALE USER GUIDE 8
Safety Warnings
Follow these safety instructions when using the scale.
Do not use this scale to diagnose
or treat any medical condition.
Do not use the scale if there are
cracks in the glass.
Do not put anything else on the
scale if not in use. This will consume
power and reduce the battery life.
Do not expose the scale to
extremely high or low temperatures.
Do not step on the scale if it is wet
or slippery. Keep the scale clean
and dry (avoid excessive humidity).
This device product is mainly
designed for household use. It is
intended to measure and display
the weight from 110 lb to 440 lb (50
kg to 200 kg) and provide all data
for clinical diagnostic purposes
or reference. All data is wirelessly
uploaded to your Livongo account
by cellular connection to make your
data management more convenient.
SCALE USER GUIDE 9
Technical Information
MAXIMUM CAPACITY:
440 lb / 200 kg
RESOLUTION:
0.1 lb / 0.1 kg
POWER SOURCE:
4x 1.5V AA alkaline batteries (included)
BATTERY LIFE:
Approximately 1 year
(Battery capacity: 230 mAH. If measured
once per day, each measurement takes
about 46 s. The current for measurement
is about 30 mA, while the current when
shut down is about 30 µA.)
UNITS:
lb
PHYSICAL SIZE:
320 x 320 x 28 mm
SW VERSION
4.6
WORKING ENVIRONMENT:
Temperature: 10°C to 40°C
Humidity: 15% RH to 90% RH
Atmospheric pressure: 80kPa to 105kPa
TRANSPORT/STORAGE ENVIRONMENT:
Temperature: -20°C to 55°C
Humidity: ≤90% RH
Atmospheric pressure: 80kPa to 105kPa
SCALE USER GUIDE 10
Symbols
SYMBOLS SYMBOLSDESCRIPTION DESCRIPTION
Type BF applied part (top surface) Do not dispose of this product as unsorted
municipal waste; take it to electronic recycling
Date of manufacture
Complies with FCC regulations
Reference number
Upper and lower limits of relative humidity
Serial number/IMEI
Caution symbol
Upper and lower limits of pressure
Follow instructions for use
Temperature range
Direct current
Keep away from sunlight
This device fullls requirements of the Radio
Equipment Directive 2014/53/EU (RED)
REF
IP21 Ingress protection: against solid objects of
12.5 mm or greater and vertically falling
water drops
SCALE USER GUIDE 11
Caution
ȯThis device is designed for use on people
12 years and older and is not intended for infants.
ȯThis device is designed for use in the home
healthcare environment to measure a person’s
weight. This device is suitable for people who can
read and understand this user guide.
ȯThe device should not be used to diagnose or treat
any medical condition. Any information provided by
this device is not meant to treat, cure, or prevent any
disease or illness from happening. If in doubt,
contact your doctor.
ȯThis device is contraindicated for any female user
who may be pregnant.
ȯThis device is contraindicated for any person
who is connected to a wearable or implantable
electronic device or instrument such as a
pacemaker or debrillator.
ȯThe scale is equipped with a data transmission
function. It may emit electromagnetic energy so as to
perform its intended function. Nearby portable and
mobile RF communications equipment can affect the
performance of the scale. And the scale can interfere
with electrical equipment in its vicinity.
ȯManufacturer will make available on request circuit
diagrams, component parts list, etc.
ȯWARNING: No modications of this equipment are
allowed. This may result in increased EMISSIONS or
decreased IMMUNITY of the scale.
ȯPlease use the device according to the user manual. Any
misuse can cause electric shock, burns, re, and other
unexpected hazards.
ȯPlease use and store the device per the environmental
conditions provided in the user manual. Don’t expose the
device to extreme temperatures, direct sunlight, moist, or
corrosive environment.
ȯDon’t step on the scale when your body or feet are wet,
especially after bathing or showering, to prevent slipping.
ȯPlease keep the device out of reach of infants, children,
and pets, since inhalation or swallowing of small parts is
dangerous or even fatal.
ȯDon’t use the device beyond the expected lifetime
because degraded sensors can degrade performance or
cause other problems.
SCALE USER GUIDE 12
ȯThe patient is an intended operator. The patient can
measure, transmit data, and change batteries under
normal circumstances and maintain the device and its
accessories according to the user manual.
ȯThe scale requires 30 minutes to warm from the minimum
and cool from maximum storage temperature between
uses until it is ready for measurement.
ȯAfter drop or shock that may cause changes in the
performance, please contact Livongo Member Support.
Don’t open or repair the device by yourself. The use
of heat- and cold-producing devices, such as electric
heating blankets, heating pads, or ice packs, may
impair the performance of device and increase the risk
of injury to the user.
ȯIf you are allergic to plastic or rubber, don’t use
this device.
ȯDo not use the device if it is damaged in any way.
The continuous use of a damaged unit may cause
injury, improper results, or serious danger.
ȯWARNING:Don’t use near active High Frequency surgical
equipment and the RF shielded room of an Medical
Equipment system for magnetic resonance imaging, where
the intensity of Electro Magnetic disturbances is high.
ȯWARNING:Use of this equipment adjacent to or stacked
with other equipment should be avoided because it could
result in improper operation. If such use is necessary, this
equipment and the other equipment should be observed to
verify that they are operating normally.
ȯWARNING:Use of accessories, transducers, and
cables other than those specied or provided by
the manufacturer of this equipment could result in
increased electromagnetic emissions or decreased
electromagnetic immunity of this equipment and result
in improper operation.
ȯWARNING:Portable RF communications equipment
(including peripherals such as antenna cables and external
antennas) should be used no closer than 12 in (30 cm)
to any part of the equipment, including cables specied
by the manufacturer. Otherwise, degradation of the
performance of this equipment could result.
SCALE USER GUIDE 13
Battery Installation
1 32
Remove the battery cover
on the back of the unit.
NOTES:
When the depleted battery symbol ( ) or error 1
appear, replace all four batteries with new ones.
Items stored in memory are retained even if the
batteries are removed.
Disposal of used batteries should be carried out
in accordance with the national regulations for
the disposal of batteries.
Insert 4 AA batteries as
indicated into the battery
compartment.
Close the battery cover.
SCALE USER GUIDE 14
Warranty
Your Livongo scale is guaranteed to be free of material and
workmanship defects for a period of ONE (1) year from the
date of receipt.
California Proposition 65 Warning
THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE
STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM.
SCALE USER GUIDE 15
FCC
This device, model WM1500, complies
with Part 15 of the FCC Rules. Operation
is subject to the following two 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.
Modications not expressly approved by
Livongo Health, Inc. could void the user’s
authority to operate the device.
Note: This device has been tested and
found to comply with the limits for a Class
B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed
to provide reasonable protection against
harmful interference in a residential
installation. This device generates, uses,
and can radiate radio frequency energy
and, if not installed and used in accordance
with the instructions, may cause harmful
interference to radio communications.
However, there is no guarantee that
interference will not occur in a particular
installation. If this device does cause
harmful interference to radio or television
reception, which can be determined
by turning the device off and on, the
user is encouraged to try to correct
the interference by one or more of the
following measures:
• Reorient or relocate the
receiving antenna.
• Increase the separation between the
device and receiver.
• Connect the device into an outlet on a
circuit different from that to which the
receiver is connected.
• Consult Livongo or an experienced
radio/TV technician for help.
Interference from external devices
has not been found to affect the
Livongo scale.
Contains FCC ID: XMR201707BG96
RADIO FREQUENCY
RADIATION
EXPOSURE
INFORMATION:
The device uses
cellular radio frequency
technology to accomplish
required communications
with Livongo’s server.
Only operate the device
in accordance with the
instructions supplied.
This device complies with
FCC radiation exposure
limits set forth for an
uncontrolled environment.
SCALE USER GUIDE 16
EMC Guidance 3
EMISSIONS TEST COMPLIANCE
RF emissions
CISPR 11
RF emissions
CISPR 11
Harmonic emissions
IEC 61000-3-2
Voltage uctuations/icker emissions
IEC 61000-3-3
Group 1
Class B
Not Applicable
Not Applicable
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC EMISSIONS AND IMMUNITY
SCALE USER GUIDE 17
EMC Guidance 3
IMMUNITY TEST IEC 60601-1-2
TEST LEVEL
COMPLIANCE
LEVEL
Electrostatic discharge (ESD)
IEC 61000-4-2
Electrical fast transient/burst
IEC 61000-4-4
Surge
IEC 61000-4-5
Voltage dips, short interruptions, and voltage
variations on power supply input lines
IEC 61000-4-11
±8 kV contact
±2 kV, ±4 kV, ±8 kV, ±15 kV air
±8 kV contact
±2 kV, ±4 kV, ±8 kV, ±15 kV air
Not ApplicableNot Applicable
Not ApplicableNot Applicable
Not ApplicableNot Applicable
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC IMMUNITY
SCALE USER GUIDE 18
EMC Guidance 3
IMMUNITY TEST IEC 60601-1-2
TEST LEVEL
COMPLIANCE
LEVEL
Power frequency magnetic eld
IEC 61000-4-8
Conduced RF
IEC61000-4-6
Radiated RF
IEC61000-4-3
30 A/m
50 Hz/60Hz
30 A/m
50 Hz/60 Hz
Not ApplicableNot Applicable
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC IMMUNITY
NOTE: UT is the a.c. Main voltage prior to application of the test level.
SCALE USER GUIDE 19
EMC Guidance 3
TEST
FREQUENCY
(MHZ)
BAND
(MHZ) SERVICE MODULATION MODULATION
(W)
DISTANCE
(M)
IMMUNITY
TEST LEVEL
(V/M)
385
450
710
745
780
810
870
930
380 –
390
430-
470
704 –
787
800 –
960
TETRA
400
GMRS 460,
FRS 460
LTE Band 13,17
GSM 800/900,
TETRA 800, iDEN
820, CDMA 850,
LTE Band 5
Pulse modulation
18 Hz
FM
± 5 kHz deviation
1 kHz sine
Pulse modulation
217 Hz
Pulse modulation
18 Hz
1,8
1,8
0,2
2
0.3
0.3
0.3
0.3
27
27
9
28
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC IMMUNITY
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