natus 60/65 User manual

Read and be familiar with this manual before installing,
operating, or servicing this device. To ensure operator,
technician, and patient safety, use only as specied in
this manual.
Model 60/65
Instruction Manual
028480 Revision date 9-4-2019
OLYMPIC SMART SCALE®
CAUTION

Product Manufacturer:
Natus Medical Incorporated
5900 First Avenue South
Seattle, WA 98108 USA
Global Sales & Support: [phone]
Phone: [phone]
Fax: [phone]
Web: www.natus.com
The information in this manual is subject to change without notice.
No part of this manual may be photocopied, reproduced, translate, or reduced to any electronic medium
without the express written permission of Natus Medical Incorporated.
All tradenames and trademarks mentioned herein are property of their respective owners.
Copyright © 2019 Natus Medical Incorporated. All rights reserved.

Table of Contents
OLYMPIC SMART SCALE® Model 60/65 TOC
Section 1: Installation
Intended Use................................................................................................1-1
Model 60 Installation.....................................................................................1-1
Calibration Check .........................................................................................1-1
Carrying the Scale........................................................................................1-1
Cautions .......................................................................................................1-1
Locking Units to Grams (Optional) ...............................................................1-2
Instructions for Cart Mounting ......................................................................1-3
Attaching and Removing Tray ......................................................................1-3
Electrical Requirements................................................................................1-4
Electromagnetic Compatibility ......................................................................1-4
Battery Operation .........................................................................................1-4
Initial Battery Charge....................................................................................1-4
Equipment Classication ..............................................................................1-5
Shipping/Storage Environment.....................................................................1-5
International Safety Symbols........................................................................1-5
Section 2: Operation
Cautions .......................................................................................................2-1
Summary Instructions...................................................................................2-1
Controls ........................................................................................................2-2
Status Lights ................................................................................................2-3
On/Off...........................................................................................................2-4
Weighing the Baby .......................................................................................2-4
Tare Function ...............................................................................................2-4
Active Babies: “Averaging” ...........................................................................2-5
Resolution.....................................................................................................2-5
Weight Lock..................................................................................................2-6
Reweigh .......................................................................................................2-6
Recall “Last Weight” .....................................................................................2-6
Grams/Pounds-Ounces................................................................................2-6
Weighing Another Baby................................................................................2-6
Overload.......................................................................................................2-7

Table of Contents
OLYMPIC SMART SCALE® Model 60/65
TOC
Setting the Averaging Signal Volume ...........................................................2-7
Setting the Brakes on Cart-Mounted Scales ................................................2-7
Cleaning .......................................................................................................2-7
Charging the Battery.....................................................................................2-8
Charge Life...................................................................................................2-8
Low Battery (LO BAT)...................................................................................2-8
Battery Pack Replacement...........................................................................2-8
Section 3: Service
Cautions .......................................................................................................3-1
Service Information.......................................................................................3-1
ESD and Contamination...............................................................................3-1
Calibration ....................................................................................................3-1
Calibration Procedure...................................................................................3-2
Off-Center Load Test ....................................................................................3-3
How an Olympic Smart Scale Averages
the Weight of an Active Baby........................................................................3-4
EMI/EMC Compatibility.................................................................................3-4
Before Attempting Repair .............................................................................3-5
Disassembly .................................................................................................3-6
Problems and Solutions................................................................................3-10
Replacing the Battery Pack ..........................................................................3-14
Replacing Line Fuses...................................................................................3-15
Replacing Power Supply Fuses....................................................................3-15
Removing Internal Components...................................................................3-16
Adjusting the Zero Offset..............................................................................3-17
Replacing the Tray Mounts...........................................................................3-18
Warranty .......................................................................................................3-19
Repair and Replacement of PCBs and Components ...................................3-19
Disposal of Product ......................................................................................3-19
Repair Parts..................................................................................................3-19
Troubleshooting............................................................................................3-20
Diagrams and Schematics............................................................................3-22

Section 1: Installation
OLYMPIC SMART SCALE® Model 60/65
Page 1-1
CAUTION: Read and be familiar with this instruction manual
before using this device.
CAUTION:This device should onlybe assembled or installed
by a qualied technician.
WARNING: Electrical shock hazard when enclosure is
open. Always unplug the power cord from the electrical
outlet before assembling, cleaning, or servicing.
WARNING: Explosion hazard. Do not use this product
in the presence of ammables (e.g., oxygen, nitrous
oxide, anesthetics).
Intended Use
The Model 60 Olympic Smart Scale is an electronic baby scale.
The Model 65 Olympic Smart Scale is an electronic baby scale
attached to a roll-around mobile base.
Both scales weigh babies up to 33 pounds (14.8 kg).
Model 60 Installation
Place the scale on a at, level table or counter surface. Ensure
that the scale cannot slide or “walk” o󰀨 the edge. The scale
weighs approximately 26 lbs (11.7 kg).
CAUTION: To assure safety, ensure that the scale is on a
strong, stable surface.
The Model 65 is shipped completely assembled. With the
exception of the Model 65’s attached roll-around base, Smart
Scale models are operated and serviced in the same manner.
Calibration Check
Every Smart Scale is calibrated at the factory before shipment.
However, due to movement during shipping, the scale should be
recalibrated before initial use (see Calibration on page 3-1).
Carrying the Scale
To pick up a scale, rmly grasp the case at each end (Fig. 1A).
Never attempt to lift scale by tray.
Fig. 1A
Cautions

Section 1: Installation
OLYMPIC SMART SCALE® Model 60/65
Page 1-2
Locking Units to Grams (Optional)
The standard conguration of the scale allows you to toggle the units of
measurement between metric and English (grams and pounds). You can
permanently lock the units to measure grams only.
1. Press On/O󰀨 on the front panel to turn on the scale.
2. Press gm/lb until grams are selected.
3. Press On/O󰀨 to turn o󰀨 the scale.
4. Lift and turn over the scale to gain access to the gm/lb disabling switch.
With the scale oriented as shown below, the switch can be accessed through
a 3/8” hole on the right hand side of the bottom of the scale. (Fig. 1B)
5. Flip the gm/lb disabling switch to the left.
6. Press On/O󰀨 to turn on scale. The units are now locked to grams.
7. Press gm/lb to verify the units are locked to grams. If locked, the display
should still read grams.
8. Place the locked to GRAMS label over the gm/lb switch.
Access to gm/lb
disabling switch
Fig. 1B

Section 1: Installation
OLYMPIC SMART SCALE® Model 60/65
Page 1-3
Four threaded (10-32 UNF) holes are provided in the base plate of
scale for securing it to any cart or table (Fig. 1C). The rubber feet
may remain in place.
CAUTION: If using the scale on a cart, ensure that the scale
is securely attached to the cart. Only use cart or tables that
are strong and stable enough to safely support the weight
of the scale as well as any objects (e.g., baby).
Attaching and Removing Tray
Any time a tray is changed, the scale must be calibrated and the
zero o󰀨set adjusted with the new tray in place (see Calibration on
page 3-1 and Adjusting the Zero Oset on page 3-17).
CAUTION: Ensure that all four tray legs are secure before
placing a baby in the tray.
To remove the tray:
1. Loosen the four Phillips screws that secure the tray legs
(Fig. 1D).
2. Lift the tray straight up (Fig. 1E).
To attach tray:
1. Lower the tray so all four feet t into the tray mounts.
2. Securely tighten all four Phillips screws (Fig. 1D).
Fig. 1E
Tray Feet (4)
Tray Mounts (4)
Fig. 1D
Tray Leg
Phillips screw
Tray Mount
Fig. 1C
Anchor Holes (4)
Bottom
of Scale
Instructions for Cart Mounting

Section 1: Installation
OLYMPIC SMART SCALE® Model 60/65
Page 1-4
The scales are rated at 120 Vac, 60 Hz, 0.2 amps. A 6-ft. (1.8 m)
power cord is included with each scale.
CAUTION: Only connect this device to a hospital-grade
electrical outlet.
Electromagnetic Compatibility
This equipment complies with EMC limits for the Medical Device
Directive 93/42/EEC (EN 55011Class A and EN 60601-1-2). For more
information, see Section 3: Service, “EMI/EMC Compatibility.”
Battery Operation
When not connected to an electrical outlet, the scale can be powered
by its internal rechargeable battery pack. The battery pack includes
six sub-c NiCad batteries rated at 7.2 volts (1.2 volts per cell).
For information on replacing the battery pack, see Replacing the
Battery Pack on page 3-14.
Initial Battery Charge
The Smart Scale has an internal rechargeable battery pack that
automatically charges when it is connected to an electrical outlet.
Before the scale is battery operated for the rst time, the batteries
should be charged for approximately 2.5 hours.
Equipment Classication
 CAN/CSA C 22.2 No. 601.1
 UL 2601-1
 Class I
 Type B Equipment
 Ordinary Equipment IXPO
 Continuous Operation
Electrical Requirements

Section 1: Installation
OLYMPIC SMART SCALE® Model 60/65
Page 1-5
Shipping/Storage Environment
Temperature: -40ºF to 158ºF (-40ºC to 70ºC)
Storage Temperature: -4ºF to 113ºF (-20ºC to 45ºC)
Humidity: 10% to 100% relative humidity
Pressure: 0.5 to 1.0 atmospheres
Symbols
The following international safety symbols are used on the scale:
Table 1
Symbol Symbol
Description Description
Alternating current (AC)
Voltage
Caution, hot surface
Shipping
Fuse
Type B applied part
Off switch for warmer
component
On switch for warmer
component
Caution
Consult instructions for
use
Storage
Humidity, condensing
Legal manufacturer
Warning
Atmospheric pressure
Electical shock hazard
Temperature limitations
Line (hot conductor)
Neutral (neutral conductor)
Nonionizing
electromagnetic radiation
Symbols
CAUTION! Federal (US) law
restricts this device to sale
by or on order of a licensed
healthcare practitioner.
Protective earth (ground)

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-1
CAUTION: Read and be familiar with this instruction manual
before using or servicing the scale.
CAUTION: This product must be connected directly to a
hospital-grade electrical outlet.
CAUTION: Tray must be securely fastened to its base
before use.
CAUTION: Never leave the baby unattended.
CAUTION: Never use the scale to transport the baby.
CAUTION: To ensure correct weighing, tray or items in tray
must not touch surrounding objects. Avoid leaning against
or touching the weighing tray or baby while the weighing
is in progress.
CAUTION: If using a roll-around cart, always lock the
caster wheels before placing the baby in the tray.
WARNING: Explosion hazard. Do not use this product
in the presence of ammables (e.g., oxygen, nitrous
oxide, anesthetics).
Summary Instructions
To weigh a baby:
1. Press On/O󰀨. Do not touch the tray until the “Standby” light
dims and zero appears.
2. Press gm/lb to select units.
3. Press 1 gm/5 gm to select resolution.
4. Press Zero (tare function) to cancel the weight of the blankets
or other objects on the tray.
5. Place the baby on the tray; weighing begins automatically.
6. Do not touch the tray or baby until the “Averaging” light dims
and the “Read” light illuminates; then, read the weight.
7. Press Reweigh to weigh the baby again.
8. Press On/O󰀨 to turn o󰀨 the scale. If operating on battery power,
the scale shuts o󰀨 automatically after ve minutes.
9. If the scale is o󰀨, press Recall to display the last weight.
Cautions

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-2
Fig. 2A
Controls
1 On/O󰀨: Turns scale display on/o󰀨. (If
operating on batteries, the scale turns itself o󰀨
automatically after ve minutes of inactivity.)
2 Zero: Press to zero (cancel or tare) blankets
and other objects.
3Reweigh: Press to reweigh baby (after initial
weighing is completed and green “Read” light
illuminates).
4 Recall: If scale is o󰀨, press to display last
weight.
5 Gm/lbs: Press to convert grams to
pounds-ounces and vice versa (ounces
to 0.1 ounce).
6 1 gm/5gm: Press to select resolution.
56
4
2
1
3

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-3
1 STANDBY: When ashing, the scale is
warming up and automatically zeroing. Do not
touch tray; wait until the “Standby” light dims
and “0” appears on the display before placing
the baby on the tray.
2AVERAGING
Hands O󰀨 Tray: When ashing, that scale has
detected baby movement and is automatically
computing baby’s weight.
CAUTION: Donot touch thetray or babywhile
the averaging light is ashing — if touched,
an error in weight will result.
3 READ
Reading Locked: Okay to read. The nal
weight has been computed and is locked on the
display.
4 1 gm: The scale is set to weigh within one
gram resolution.
Status Lights
5 5 gm: The scale is set to weigh within ve-
grams resolution.
6 OVERLOAD: There is too much weight on the
tray. The maximum weight is 33 lbs (14.8 kg).
7 LB OZ: The display shows weight in pounds
and ounces.
8 GRAMS: The display shows the weight
in grams.
9 LOW BAT: The battery power is low. To
recharge, plug the scale into a hospital-grade
electrical outlet.
10 CHARGING: The batteries are charging
(connected to an electrical outlet).
11 LAST WEIGHT: When illuminated, the
display shows the last weight locked before it
was turned o󰀨.
Fig. 2B
678 9 10 11
5
4
3
2
1

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-4
On/O󰀨
Press On/O󰀨 to turn the Smart Scale display on or o󰀨, respectively.
When the Smart Scale display is on, the “Standby” light blinks for a
few seconds while the scale warms up and automatically zeros.
NOTE: Do not touch tray until the “Standby” light dims. The
“Standby” light will not dim if the tray is moving.
NOTE: If items (e.g., blankets) are placed on thescale before
the “0” appears, they will not be weighed—they will be tared
out. (See “Tare Function” below.)
Weighing the Baby
When the “Standby” light dims and “0” appears on the display,
place the baby in the center of the tray.
When weighing an inactive baby, the “Read” light illuminates and
the weight will appear on the display.
CAUTION: Never touch the tray or baby while the
“Averaging” light is ashing.
CAUTION: Never leave the baby unattended while on
the scale.
Tare Function
To cancel (tare out) the weight of blankets or other objects, either:
 If the scale display is already on (“0” on the display), place the
blanket on the tray and press Zero. The weight of the blanket
will be cancelled and “0” will appear on the display.
–or–
 If the scale display is o󰀨, place the blanket on the tray and
press On/O󰀨 (do not touch tray until “Standby” light stops
ashing). The weight of the blanket will automatically be
cancelled and the display will read “0”.
After the objects (e.g., blankets) have been tared (cancelled), the
scale will weigh the baby without including the object’s weight.
NOTE: When the scale has been zeroed between
weighings, if a blanket is removed from the tray after
its weight has been cancelled (tared out), the scale will
automatically zero itself again. The “Standby” light may
ash for a few seconds and the “0” will reappear on the
display. This means that the scale is no longer subtracting the
blanket’s weight and is ready to start a new weighing.

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-5
Weighing Tips:
 Remember, if an object is on the tray and the display shows
“0” the weight of the object has been cancelled (tared out).
If an additional object, such as a baby, is then placed on
the tray, only its weight will be shown.
 If weighing a clothed or diapered baby, the weight of
the clothing can be compensated for by placing similar
garments on the scale, and then pressing Zero.
Immediately after placing the baby in the tray—before
the scale locks on the weight—remove the extra “zeroed”
diaper and other garments.
Active Babies: Averaging the Weight
If the baby is moving, the Smart Scale’s “Averaging” light will begin
blink and an audible beep will sound.
NOTE: TheAveragingTone Volume Control knob is located
below the control panel to the right.
If the baby is moving, the Smart Scale’s microprocessors will
automatically average the baby’s weight. While computating the
average weight, the “Averaging” light blinks. Upon completion, the
“Read” light illuminates, and the averaged weight locks (shows) on
the display.
CAUTION: Touching the tray or baby while the
“Averaging” light is illuminated can result in an incorrect
weight. If you do touch the baby, wait until the “Averaging”
light dims and the “Read” light illuminates. Then press
Reweigh to reweigh the baby. (See “Reweigh Feature” on
page 2-6).
Resolution
Press 1 gm/5 gm to toggle between two levels of resolution:
 1 gm—When the “1 gm” status light is on, the scale
measures the weight of the baby within one gram.
 5 gm—When the “5 gm” status light is on, the scale rounds
the weight of the baby to the nearest 5 grams
NOTE: The scale will remember the setting last used.
NOTE: This feature is inactive if the “Read” light is on or
if Recall last weight has been pressed (i.e., the weight is
locked on the display and cannot be changed).

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-6
Weight Lock
The weight remains locked on the display until Zero is pressed or
scale display is turned o󰀨. (When operating on batteries, the display
automatically turns o󰀨 after ve minutes of inactivity.)
Reweigh
After the baby has been weighed (“Read” light illuminates), the
baby can be reweighed by pressing Reweigh. The baby can be
reweighed as many times as desired.
Reweighing does not cancel the tare function. If weight of blanket
was cancelled (tared out) for the rst weighing, it will remain
cancelled on reweighing.
NOTE: The reweigh feature is particularly important
when IV tubes require holding in an upright position while
weighing the baby.
Recall the Last Weight
If the scale is o󰀨, press Recall to show the last weight. The value
shown during the previous weighing will appear on the display.
Grams/Pounds-Ounces
Grams can be converted to pounds-ounces and vice versa by
pressing gm/lb (i.e., pressing gm/lb will toggle between grams and
pounds). The scale displays ounces to the nearest tenth of an ounce
in the 1-gram resolution, or to the nearest two-tenths of an ounce in
the 5-gram resolution.
The Smart Scale remembers last setting used. Change the units at
any time prior to weighing, or after the scale has nished weighing.
NOTE: This scale has an option to permanently lock the
measurement units to grams (see page 1-2).
Weighing Another Baby
Press Zero and wait for “0” to appear on display before placing the
next baby on the tray.

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-7
Averaging Tone Volume-
Control Knob
Overload
If the load exceeds 15 kg (33 lbs-1oz), the overload signal on the
display panel will illuminate. Reduce the weight on the scale.
Setting the Averaging Signal Volume
The Smart Scale sounds an audible beep to alert users when it
is computing a weight in “Averaging” mode — this beep acts as a
reminder to keep hands o󰀨 of the tray.
The Averaging Tone Volume Control knob is located below the
control panel to the right. Rotating the knob to the far left silences
the tone; rotating the knob to the right gradually increases the
volume.
Setting the Brakes on
Cart-Mounted Scales
The front two casters wheels of the Smart Scale Model 65 have
foot brakes. To set or release the brake, step on the lever.
CAUTION: Always lock the brake casters on the cart before
placing a baby in the tray.
CAUTION: Never use the scale to transport the baby.
Cleaning
Wipe the Smart Scale clean with liquid disinfectant.
CAUTION: Do not allow liquid to enter case as this may
damage the electronics.
CAUTION: Toavoiddamage totray,donotwipewith alcohol.
Brake

Section 2: Operation
OLYMPIC SMART SCALE® Model 60/65
Page 2-8
Charging the Battery
The Smart Scale has a rechargeable battery pack that
automatically charges (“Charging” signal illuminates on the display
panel) whenever the scale is connected to an electrical outlet.
NOTE: The scale can be used while connected to an
electrical outlet with the battery pack removed, or while the
batteries are charging.
Charge Life
With fully charged batteries the scale will operate for
approximately three hours of continuous use — enough for about
150 weighings.
NOTE: When the power cord is not in use, wrap it around
the cleats on the rear of the scale.
Low Battery (LO BAT)
The LO BAT signal indicates how much battery life remains:
 If slowly blinking, the battery is getting low.
 If lit and steady, approximately 30 minutes of continuous
battery-powered operation time remains.
 If rapidly blinking, the battery charge has been depleted and
the scale will automatically turn o󰀨. Connect the scale to a
functioning electrical wall outlet for recharging.
When LO BAT appears, connect the scale to an electrical outlet to
recharge the battery.
Battery Pack Replacement
See Replacing the Battery Pack on page 3-14.

OLYMPIC SMART SCALE® Model 60/65
Page 3-1
Section 3: Service
CAUTION: Service should only be performed by a qualied
technician.
CAUTION: This product should be calibrated, at a minimum,
every 12 months.
CAUTION: PC boards contain static-sensitive parts. Always
use appropriate electro-static device (ESD) protection when
enclosure is removed.
WARNING: Electrical shock hazardwhen enclosure is open.
Always unplug the power cordfrom the electrical outlet before
assembling, cleaning, or servicing.
Service Information
The Olympic Smart Scale is designed to allow for performance of
service in the eld to the printed circuit board (PCB) level. These
instructions will assist you in isolating the problem PCB or
component. After testing, if a PCB or the loadcell is identied as
damaged, return the scale to Natus Medical for repair.
To identify the problem, see Troubleshooting on page 3-20.
ESD and Contamination
The integrated circuits and semiconductors on the PCBs can be
damaged by electrostatic discharge or contamination by body oil.
Observe proper handling cautions at all times.
Calibration
Upon receiving the Smart Scale, and at regular intervals
(depending on frequency of use), the scale should be calibrated
and the zero o󰀨set adjusted with the tray in place (see Adjusting
the Zero Oset on page 3-17).
As with any precision electronic instrument, the Smart Scale
can drift out of calibration over time. Since no electronic scale
recalibrates itself automatically, to assure correct calibration, place
an accurate, known weight on the scale tray and verify that the
shown weight is correct.
Calibration Weight: The Smart Scale calibration procedure
requires a 7500 ±1-gram weight. A calibration weight may be
ordered from Natus Medical (catalog no. 56315).
Cautions