marsden M-999 User manual

USER MANUAL
M-999 Patient
Transfer Scale
Please take time to read these instructions
before starting to use the scale
Version 1.0 10/18

Contents
Introduction 3
Product Specification 3
Safety Instructions 4
Cleaning 5
Explanation of Graphic Symbols 6
LCD Display 7
Recharging the M-999 8
Setting up the Scale 9
Preparing to use the Scale 10
Operation: Basic Functions 12
Operation: Advanced Functions 13
EMC Guidance and Manufacturer’s Declaration 14
Error Messages 18
Manufacturer’s Declaration of Conformity 19
Contact Information 20
Page 2

Thank you for purchasing this Marsden Patient Transfer Scale. This is a
precision Class III Weighing Instrument and considerate use will result in
many years of accurate weighing.
The scale has a maximum load capacity of 250kg which must not be
exceeded.
Product Specification
Model
M-999
Accuracy Class
Class III
Capacity/Division
250kg x 0.5kg
Weight of scale
11.4kg
Units of Measure
kg
Function Keys
ON/OFF/ZERO, HOLD
Operating Temperature/Humidity
5 to 35˚C / 15 - 85% RH
Power Supply
Rechargeable battery pack
Display
27.7mm x 75mm LCD
Dimensions
1805mm X 700mm X 30mm
Page 3

Safety Instructions
Before putting the device into use, please read with care the information given in this user manual,
which contains important instructions for proper installation, use and maintenance of the device.
Marsden/the manufacturer shall not be liable for damages arising from failure to heed the following
instructions:
•When using electrical components under increased safety requirements, always comply with
appropriate regulations.
•Inappropriate installation/use will render the warranty null and void.
•Ensure the voltage marked on the power supply unit matches your mains supply.
•This device is designed for use indoors.
•Observe the permissible ambient temperatures for use.
•The device meets the requirements for electromagnetic capability. Do not exceed the
maximum values specified in the applicable standards.
•Batteries should be kept away from small children. If swallowed, promptly seek medical
assistance.
If you have any problems, contact Marsden/your local dealer/your service partner.
Maintenance
•We recommend checking the scale’s accuracy at regular intervals. If any inaccuracies occur,
please contact your local dealer or service partner.
•Repairs should be carried out by authorised service agents. For information regarding Marsden
service contracts in the UK, call 01709 364296.
Disposing of the Scale
•This product should not be treated as regular household waste, but should be handed in to an
electrical/electronic equipment recycling centre.
•You can obtain further details from your local council, your municipal waste disposal company
or from where you purchased the product.
Page 4

Cleaning
When cleaning or disinfecting the Patient Transfer Scale, please follow the guidance below.
•To clean and disinfect the Patient Transfer Scale, use a chlorine releasing agent with detergent.
•Use a non-abrasive cloth.
•Please do not use corrosive liquids, large amounts of water or high pressure washers.
•Do not submerge the PTS in water. If you think the scale may have suffered water ingress, stop
using it immediately and contact Marsden/your local dealer/your service partner.
•Always disconnect the PTS from the mains power supply before cleaning.
Page 5

Explanation of Graphic Symbols
SN-21300100
Designation of the serial number of
every device.
(Number as an example)
“Please note the accompanying
documents” or “Observe operating
instructions”
Charder Electronic Co. Ltd
No.103 Guozhong Rd, Dali Dist,
Taichung City 412, Taiwan (R.O.C)
Identification of manufacturer of medical
product including address.
Type B applied part
Dispose of old appliances separately
from your household waste.
This product must be disposed of at a
communal collection point.
Carefully read this operation manual
before setup and commissioning, even if
you are already familiar with Marsden
scales.
Page 6

LCD Display
HOLD
Stable symbol: To indicator the weight reading is stable
Minor weight: The weight is under zero.
Zero symbol: The weight is at zero point.
Low battery: Please recharge the scale.
ON/OFF/ZERO
Stable symbol
Minus weight
Zero symbol
Low battery
HOLD
Page 7

Recharging the Scale
We recommend fully charging the scale before first use. To fully charge the scale please allow 8 hours.
When the low battery indicator on the LCD display indicates that the scale needs recharging, move
the M-999 to a location where it can be charged. You will find the charging port on the underside of
the scale.
The port for the charging cable is magnetic. Clip the end of the cable in place and plug the other end
of the cable into a power socket. Please do not use any form of charging cable other than the one
supplied with the scale. The scale cannot be used whilst recharging.
Page 8

Setting up the Scale
With the scale switched on, press HOLD for six seconds. You will then enter Setup for
auto power-off, buzzer and backlight.
Auto off time: 30m /60 m/off
Buzzer: On/Off
Backlight: ON/OFF
Auto power-off:
Buzzer on/off:
Backlight on/off:
To confirm the settings, please press HOLD when shows on the display.
Page 9

Preparing to use the Scale
The Patient Transfer Scale should be used in line with current moving and handling
policies. Essentially, it should be used in the same way you would use a transfer board,
taking into account of course that you will need to pause during the transfer process.
•The Patient Transfer Weighing Scale should only be used by trained professionals.
•Ensure brakes on castors are applied before you begin the transfer process.
•The distance between the bed and trolley/bed must be no more than 100mm
•The Patient Transfer Scale must have a minimum of 200mm on each bed or
trolley and bed before use.
•When transferring, the two surfaces must be of similar height. A tilt of less than
3% (one side raised by around 25mm) is ok; a tilt greater than this will affect the
scale’s accuracy. To avoid showing an inaccurate reading, the scale will display an
error message if tilt exceeds 3%.
•Guidance for safe use can also be found on the scale itself (see next page).
!
Page 10

Page 11

Operation: Basic Functions
Switching the Scale on
To switch the scale on, press the
ON/OFF/ZERO button. When the display
shows 0.0 the scale is ready to use.
Switching the Scale off
Press and hold ON/OFF/ZERO button
for three seconds to power the scale
down.
Setting the Scale to Zero
If for any reason the scale shows a reading
other than 0.0 it can be reset to zero. Press
the ON/OFF/ZERO button once and the
scale will return to 0.0.
Page 12

Operation: Advanced Functions
Using the Hold Function
The scale’s Hold function stabilises the
weight reading on the display, allowing
you to take an accurate reading without
fluctuations.
With a patient on the scale, press HOLD.
The display will show ‘HOLD’.
NB: Alternatively, you can activate the Hold
function before the patient is on the scale.
When the scale has determined the weight
of the patient, a stable weight reading will
show. This will remain on the display after
the patient has left the scale.
Press HOLD to disable the Hold function.
Page 13

EMC Guidance & Manufacturer’s Declaration
Guidance and manufacturer’s declaration-electromagnetic immunity
The MEDICAL SCALE M-999 is intended for use in the electromagnetic environment
specified below.
The customer or the user of the MEDICAL SCALE M-999 should ensure that it is used in such
an environment.
Immunity test
IEC 60601
test level
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
± 2kV for
power supply
lines + 1kV
for
input/output
lines
± 2kV for
power supply
lines Not
applicable
Mains power quality
should be that of a
typical commercial
or hospital
environment.
Guidance and manufacturer’s declaration-electromagnetic emissions
The MEDICAL SCALE M-999 is intended for use in the electromagnetic environment
specified below.
The customer or the user of the MEDICAL SCALE should ensure that it is used in such an
environment.
Emission test
Compliance
Electromagnetic environment-guidance
RF emissions
CISPR 11
Group 1
The MEDICAL SCALE M-999 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.
RF emissions
CISPR 11
Class B
The MEDICAL SCALE M-999 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.
Harmonic
emissions IEC
61000-3-2
Class A
Voltage
fluctuations
/flicker emissions
IEC 61000-3-3
Compliance
Page 14

Surge IEC 61000-4-5
± 1kV line(s)
to line(s) ±
2kV line(s) to
earth
± 1kV
differential
mode Not
applicable
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 70%
UT(30% dip in
UT) for 25
cycles <5%
UT(>95% dip
in UT) for 5 s
<5%
UT(>95% dip
in UT) for 0,5
cycle 40%
UT(60% dip in
UT) for 5
cycles 70%
UT(30% dip in
UT) for 25
cycles <5%
UT(>95% dip
in UT) for 5 s
Mains power quality
should be that of a
typical commercial
or hospital
environment. If the
user of the
MEDICAL SCALE M-
999 requires
continued operation
during power mains
interruptions, it is
recommended that
the MEDICAL SCALE
M-999 be powered
from an
uninterruptible
power supply or a
battery.
Power frequency(50/60 Hz)
magnetic field IEC 61000-4-8
3 A/m
3 A/m
The MEDICAL SCALE
M-999 power
frequency magnetic
fields should be at
levels characteristic
of a typical location
in a typical
commercial or
hospital
environment.
NOTE UT is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer’s declaration-electromagnetic immunity
The MEDICAL SCALE M-999 is intended for use in the electromagnetic environment specified
below.
The customer or the user of the MEDICAL SCALE M-999 should assure that is used in such
and environment.
Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic
environment-
guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 KHz to 80
MHz
3 Vrms
Portable and mobile
RF communications
equipment should be
used no closer to any
part of the MEDICAL
SCALE M-999
including cables, than
the recommended
separation distance
calculated from the
equation applicable to
the frequency of the
transmitter.
Page 15

Radiated RF IEC 61000-4-3
3 V/m 80MHz
to 2,5 GHz
3 V/m
Recommended
separation distance:
d = 1,2 √ P
d = 1,2 √ P 80MHz to
800 MHz
d = 2,3 √ P 800MHz
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
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:
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 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 MEDICAL SCALE
M-999 is used exceeds the applicable RF compliance level above, the MEDICAL SCALE
M-999 should be observed to verify normal operation. If abnormal performance is
observed, additional measures my be necessary, such as re-orienting or relocating the
MEDICAL SCALE M-999.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be les than 3 V/m.
Page 16

Recommended separation distance between portable and mobile RF communications
equipment and the MEDICAL SCALE
The MEDICAL SCALE M-999 is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the MEDICAL SCALE M-
999 can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the
MEDICAL SCALE as recommended 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
80 MHz
d =1,2√ P
80 MHz to
800 MHz
d =1,2√ P
800 MHz to 2,5 GHz
d =2,3√ P
0,01
0,12
0,12
0,23
0,1
0,38
0,38
0,73
1
1,2
1,2
2,3
10
3,8
3,8
7,3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in metres (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.
NOTE1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
Page 17

Error Messages
Error Message
Reason
Action
Low battery: This warning
shows that the voltage of
battery is too low to use
Please recharge the scale.
Overload: The Total load
exceeds the maximum
capacity of scale
Please reduce the load on
the scale.
Counting error (too high):
Indicates that the signal from
the loadcells is too high
This error is normally caused
by a serious fault. Please
contact your service
provider.
Counting error (too low):
Indicates that the signal from
the loadcell is too low
This error is normally caused
by a serious fault. Please
contact your service
provider.
Zero count over calibration
zero range (+10% with
power on)
Please re-calibrate the scale.
Zero count under calibration
zero range (-10% with power
on)
Please re-calibrate the scale.
EEPROM Error: Indicates that
there is a fault with the
software
This error is normally caused
by a serious fault. Please
contact your service
provider.
Page 18

Manufacturer’s Declaration of Conformity
Manufacturer’s Declaration of Conformity
This product has been manufactured in accordance with the harmonized
European standards, following the provisions of the below stated directives:
93/42/EEC as amended by
2007/47/EC
Medical Device Directive
Please see separate document showing on sticker of device for above CE
marking.
Authorized EU Representative:
Manufactured by:
Charder Electronic Co., Ltd.
No.103, Guozhong Rd., Dali Dist.,
Taichung City 412 ,Taiwan (R.O.C.)
Page 19

Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Manufacturing and Distribution:
Unit 7, Centurion Business Park,
Coggin Mill Way,
Rotherham,
S60 1FB
Sales, Technical Support, Service & Finance
Unit 1, Genesis Business Park,
Sheffield Road,
Rotherham
S60 1DX
www.marsden-weighing.co.uk
www.patienttransferscale.com
CD-IN-00037 REV002 10/2018