RADWAG WPT-8B 300C User Manual

User manual

Medical scales

User manual no.:

ITKU-16-08-10-13-EN

 Personal scales
 Bed scales
 Chair scales
 Baby scales

BALANCES AND SCALES

RADWAG 26 – 600 Radom, Bracka 28, POLAND
Phone: [phone], fax. [phone]

[e-mail]
www.radwag.com

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27 August 2012

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Table of contents

1. INTENDED USE ................................................................................................................ 5

2. PRECAUTIONATY MEASURES ....................................................................................... 5

2.1. Maintenance .............................................................................................................. 5

2.2. Battery pack ............................................................................................................... 5

2.2.1. Power supply of scales featuring an indicator in plastic housing ......................... 6

2.2.2. Replacement of used batteries ........................................................................... 7

3. WARRANTY CONDITIONS ............................................................................................... 8

4. MAIN D IMENSIONS .......................................................................................................... 9

5. UNPACKING AND ASSEMBLY ...................................................................................... 12

5.1. Personal scale ......................................................................................................... 12

5.2. Bed scale WPT/4B series ......................................................................................... 13

6. CLEANING ...................................................................................................................... 15

7. START UP ....................................................................................................................... 16

8. KEYBOARD .................................................................................................................... 16

9. KEYS AND FUNCTIONS ................................................................................................. 17

10. DI SPLAY INDICATIONS ................................................................................................ 17

11. USER MENU .................................................................................................................. 18

11.1. Sc al e’s paramet er groups....................................................................................... 18

11.2. Moving through user m enu ..................................................................................... 18

11.2.1. Keyboard ........................................................................................................ 18

11.2.2. Return to weighing mode ................................................................................ 19

12. WEIGHING..................................................................................................................... 19

12.1. Tarring f unct i on ...................................................................................................... 19

12.2. Manual tare insertion .............................................................................................. 20

12.3. Zeroing f unct i on ..................................................................................................... 21

12.4. Weighing on dual range scales............................................................................... 21

12.5. Selection of basic measuring unit ........................................................................... 22

12.6. Select i ng an instant aneous m easuring unit ............................................................ 23

13. MAIN SCALE PARAMETERS ....................................................................................... 24

13.1. Setting filtering level ............................................................................................... 24

13.2. Median fil ter ........................................................................................................... 25

13.3. Aut ozero f unct i on ................................................................................................... 26

14. RS 232 PARAMETERS ................................................................................................. 27

14.1. Determining minimum mass for function operation ................................................. 27

14.2. Baud rat e ............................................................................................................... 28

14.3. Serial transmission parameters .............................................................................. 29

15. OTHER PARAMETRS ................................................................................................... 30

15.1. Displ ay back l i ght .................................................................................................... 30

15.1.1. Display backlight for supply from mains .......................................................... 30

15.1.2. Display backlight for supply from batteries or accumulators ............................ 31

15.2. “beep” sound – sc al e reaction to pressi ng a key ..................................................... 32

15.3. Scale automatic switch off ...................................................................................... 32

15.4. Charging and disc hargi ng bat teries / accumulators ................................................ 34

15.4.1. Battery / accumulator voltage level check ....................................................... 34

15.4.2. Operation of battery / accumulator charge / discharge indication .................... 34

15.4.3. Accumulator charging options ......................................................................... 35

15.4.4. Accumulator charging process ........................................................................ 36

16. WORKING MODES ....................................................................................................... 37

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16.1. Means of select i ng a working mode........................................................................ 37

16.2. Weighing with lock of measurement result on the display - hoLd ............................ 37

16.3. Determining BMI factor ........................................................................................... 39

17. SCALE ADJUSTMENT .................................................................................................. 41

17.1. Adjustment ............................................................................................................. 41

17.2. Start mass adjustment ............................................................................................ 43

18. COOPERATION WITH A PRINTER ............................................................................... 44

19. COOP ER ATION WITH A COMPUTER .......................................................................... 45

20. COM M UNICATION PROTOCOL ................................................................................... 46

20.1. General information ................................................................................................ 46

20.2. A set of commands recognized by the indic at or ...................................................... 47

20.3. Responses format for commands sent from computer level ................................... 47

20.4. Command’ s descri ption .......................................................................................... 48

20.4.1. Zero scale ....................................................................................................... 48

20.4.2. Tare scale ....................................................................................................... 48

20.4.3. Give tare value................................................................................................ 48

20.4.4. Send stable measurement result in basic measuring unit ................................ 49

20.4.5. Immediately send measurement result in basic measuring unit ....................... 49

20.4.6. Send stable measurement result in current weighing unit................................ 50

20.4.7. Immediately send measurement result in current measuring unit .................... 51

20.4.8. Switch on continuous transmission in basic measuring unit ............................ 51

20.4.9. Switch off continuous transmission in basic measuring unit ............................ 52

20.4.10. Switch on continuous transmission in current measuring unit ........................ 52

20.4.11. Switch off continuous transmission in current measuring unit ........................ 52

20.4.12. Send all implemented commands ................................................................. 52

20.5. Manual printout ...................................................................................................... 53

20.6. Continuous transmission ........................................................................................ 54

20.7. Printout configuration ............................................................................................. 54

21. ERROR MESSAGES ..................................................................................................... 54

22. SCALE TECHNICAL PARAMETERS ............................................................................ 55

22.1. Chair scale ............................................................................................................. 55

22.2. Personal scales ...................................................................................................... 55

22.3. Bed scales ............................................................................................................. 56

22.4. Baby scal es ............................................................................................................ 56

23. TROUBLE SHOOTING .................................................................................................. 57

24. ADDI TIO NAL EQUIPMENT ........................................................................................... 57

25. EMC INFORMATION ..................................................................................................... 58

26. APPENDIX A ................................................................................................................. 62

26.1. Pict ograms on the data plat e .................................................................................. 62

26.2. CE marking ............................................................................................................ 62

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1. INTENDED USE

RADWAG medical scales are designed to measuring mass of weighed
patients.
In case of personal scales, the mass determining process is carried out
when a patient stands on the scale’s weighing platform, on chair scales –
when a patient is sitting, and on bed scales a patient is weighed while lying
on a bed. Baby scales enable determining body mass of a baby who is
lying on scale’s platform. Each of medical scales enables tarring in the
whole measuring range.

Functions:

• Display backlight,

• Digital filters (adjusting scale’s operation to ambient and operating

conditions of the place of use),

• Median filter,

• Autozero function,

• Manual setting of tare value,

• Baud rate settings,

• Determining minimum mass for operating of automatic functions,

• Automatic scale’s switch off,

• User adjustment (available in non-verified scales),

• Peak hold – weighing wit h locking the measurement result on the

display - HOLD,

• Determining BMI factor.

2. PRECAUTIONATY MEASURES

2.1. Maintenance

A. Read the user manual carefully before commissioning and using the

scale according to its intended use;

B. Instruments to be decommissioned should be decommissioned in

accordance with valid legal regulat ions.

2.2. Battery pack

Medical scales featuring an indicator PUE C/31 series (plastic housing) are
designed for buffer powering by NiMH batteries / accumulators) with rated
voltage 1,2V, size R6 (AA) and capacity from 1800 to 2800mAh.

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Indicators plugged to mains automatically monitor and maintain batteries /
accumulators charging status.

In case of scale’s / indicator’s elongated storage in low
temperatures, it is not allowed to fully discharge the
accompanied batteries.

The equipment including accumulators does not belong
to your regular household waste. The Europe an legislation
requires that electric and electronic equipment be collected
and disposed separately from other communal waste with
the aim of being recycled.

Hint:
Some symbols on accumulators / batteries identify harmful compounds:

Pb = lead,
Cd = cadmium,
Hg = mercury.

2.2.1. Power supply of scales featuring an in d icator in plastic housing

New NiMH accumulators, which come standard with the indicator PUE
C/31 series in plastic housing require forming in accordance with the
procedure contained in point 15.4.4 of this user manual.

Alternatively, the indicator can be powered by standard R6 / AA batteries.
Should an indicator be powered from standard batteries, not the NiMH
accumulators, then:

• Before installing the batteries inside the indicator’s housing, power the
indicator from mains only, and go to menu parameter <5.5.CHr6> and
change its value to <no>,

• On completing the above step it is possible to assemble standard
batteries to indicator’s batteries compartment.

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Installing standard batteries without setting the parameter
<5.5.CHr6> to value <no> may, on powering the indicator
from mains, damage the batteries and the indicator.

Powering the scale from mains is permissible using only the
power adapter that comes standard with the scale.

2.2.2. Replacement of used batteries

Scales featuring indicator PUE C/31 series (plastic housing) enable
replacing used batteries with new ones .

Procedure:

• Open the lid of the battery compartment located in the bottom section
of indicator’s housing:

• Remove used (discharged) accumulators / batteries and replace them
with new ones, pay attention to correct polarity (+/-)marked in the
battery compartment:

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• Close the battery compartment’s lid:

3. WARRANTY CONDITIONS

A. RADWAG feels obliged to repair or exchange all elements that

appear to be faulty by production or their construction,

B. Defining defects of unclear origin and means of their elimination can

only be realized with assistance of manufacturer and user
representatives,

C. RADWAG does not bear any responsibility for defects, losses or

accidents resulting from unauthorized or inadequate performing
of production or service processes,

D. Warranty does not cover:

• Mechanical defects caused by product exploitation other than
intended, defects of thermal and chemical origin, defects caused
by lightning, overvoltage in the power network or other random
event,

• Maintenance activities (cleaning).

E. Loss of warranty takes place if:

• A repair is carried out outside RADWAG sales office or authorized
service point,

• Service claims intrusion into mechanical or electronic construction
by unauthorized people,

• The scale does not bear company’s protective stickers.

F. Accumulators are covered by 6 months warranty period.
G. Detailed warranty conditions are listed on a service card.

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4. MAIN DIMENSIONS

Personal scale WPT xx OW series

Personal scale WPT xx O series

A. Personal scales are available in two versions

– with a height meter (indicator is attached to the height meter);
– without a height meter (indicator is attached to the scale’s weighing
platform).

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B. Chair scale features a moveable handle and wheels aiding scale’s

transport to intended place of use.

Chair scale – dimensions

C. Bed scale WPT/4B series features four measuring blocks, which are

placed under the wheels of a bed using a dedicated hoist. The design
of the WPT/4B series enables its using independently on bed type
(beds with wheel diameter from φ100 to φ200) and applied brake
system.

Bed scale WPT/4B series – dimensions

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D. Bed scale WPT/8B series comprises two weighing beams, which are

unfolded maximall y to 2,5 m eters . A gentle entrance onto the beam
enables easy locating the bed onto the scale’s beams. On positioning
onto the beams, the bed is weighed. The design of bed scale
WPT/8B series enables its using independently on bed type and
applied brake system.

Bed scale WPT/8B series – dimensions

E. Baby scales WPT 6/15D and WPT 10/20D are precise m eas uring

instruments designed in the accuracy class III, and dedicated to
weighing infants. Weighing process can be carried out with indication
lock on stabilization of measurement result, i.e. peak hold function. In
such case, infant’s mass can be precisely read independently on
baby’s movement on scale’s weighing platform.

Baby scale – dimensions

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5. UNPACKING AND ASSEMBLY

5.1. Personal scale

A. Carefully remove the personal scale from its packaging,
B. In order to ensure precise indications, place the scale on a firm

foundation, distant from heat and cold sources,

• In case of bed scales, place the beams on a firm, stable and
even foundation, and unfold the beams to adjust them to a
type of bed that is weighed,

• In case of personal scales with a height meter, assembly the
height meter to scale’s base using an allen key that comes
standard with the scale,

Assembly of persona l sca le WP T xx OW series

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5.2. Bed scale WPT/4B series

A. Carefully remove the bed scale from its packaging

General view

B. Assembly the scale’s components:

• Screw down the indicator,

• Push in the castors,

C. Move the assembly to its operation place and place it next to a bed to

be weighed,
D. Lock the castors’ brakes to set the trolley in a determined position,
E. Lock the castors of the bed,
F. Move one of the measuring blocks of the WPT/4B scale to one of the

bed’s wheels,
G. Assemble the hoist:

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Step 1

Step 2

Step 3

Step 4

H. Use the hoist to place bed’s wheel in the scale’s measuring block.

See below figures:

I. Apply the same procedure to the following bed’s wheels until all of the

bed’s wheels are located on the measuring blocks, as shown below:

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Caution:

The foundation under the measuri ng block s should b e even and
leveled. Additionally, make sure, that the connecting cable is not
clenched under the measuring block, as it may be source of incorrect
measurements.

6. CLEANING

Scales intended for weighing infants
The scale requires periodical cleaning of the weighing platform. Clean the

weighing platform using disinfectants and cleaning agents dedicated for
medical equipment. While cleaning avoid pressing hard the weighing
platform as it may damage the scale’s measuring system.

Chair scales
The scale requires periodical cleaning of the seat and the arms. Clean the

scale parts using disinfectants and cleaning agents dedicated for medical
equipment. While cleaning avoid turning over the scale or carrying out
other activities which may result in damaging the scale .

Bed scales
Clean the measuring blocks and measuring beams (depending on scale

type) using disinfectants and cleaning agents dedicated for medical
equipment.

Personal scales
Clean the weighing platform and scale’s body using disinfectants and

cleaning agents dedicated for medical equipment.

Caution:

Do not drench the indicator of medical scales in any way (use dry cloth or
alternatively a damp cloth to clean the indicator).

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7. START UP

First unpack and assemble the scale (see point 5 of this user manual).
Then:

• Level the scale using its adjustable feet located in the bottom base of
the medical scale. Monitor the level status on the level located in the
base of the medical scale. Leveling is correct if the air bubble
of the level indicator is located in the central location:

• Switch on the scale by pressing
0,5 second,

• On turning on wait until the scale completes the auto test procedure,

key – press and hold the key for

• Then the zero mass indication appears on the display, with the
following pictogram s:

- precise zero indication

- stable measurement result

kg - measuring unit

• If measurement result is other than zero, press zeroin g ke y on
indicator’s overlay.

8. KEYBOARD

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No.

Indication

Description

1.

Fil

2.

bAud

3.

Auto

4.

t1

9.

Net

10.

hold

9. KEYS AND FUNCTIONS

Switching on/off scale’s display – press and hold the
key for about 1 second

Function key (working mode selection)

Sending measurement result to a connected printer or
computer

Zeroing

Tarring

Caution:
Simultaneous pressing of

and keys changes functionality of the
keys for the time of function programming. Means of their use is described
further in this user manual.

10. DISPLAY INDICATIONS

Filtering level of weighing result
Baud rate
Control and correcting scale’s zero indicat ion
Power save mode – time defined scale’s switch off

5.

6.

7. kg (g) Scale in working mode weighing

8.

11. bmi

Indication in autozero mode (indication = zero)
Stable measurement result (ready to read)

Discharged batteries / accumulators / defected
accumulator or defected power adapter

Tare function applied
Weighing with peak hold function applied
Determining BMI factor

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P1 rEAd

P 1.1 Fil

|

4

P 1.2 Auto

|

YES

P 1.4 Fnnd

|

no

P2 Prnt

P2.2 S_Lo

|

P2.3 bAud

|

9600

P2.4 S_rS

|

8d1SnP

P3 Unit

P3.1 StUn

|

kg

P5 othr

P5.1 bL

|

Auto

P5.2 bLbt

|

70

P5.3 bEEP

|

YES

P5.4 t1

|

Auto

P5.5 CHr6

|

YES

P6 CAL

P6.1 St_u

|

* FUNCTION *

P6.2 uCAL

|

* FUNCTION *

+

Entering main menu

Manual tare inserting in working m ode: weigh in g

+

Check battery / accumulator status

+

Toggling between gross / net values

11. USER MENU

11.1. Scale’s parameter groups

Scale menu is divided into 5 basic submenus. Each group has its own
name preceded by a capital letter P:

11.2. Moving through user menu

The user moves in the menu by pressing keys on indicator’s overlay.

11.2.1. Keyboard

+

Change of digit value by “1” up
Scrolling the menu upwards

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Selecting a parameter on one menu level

Entering a selected submenu

Accepting carried out changes

Leaving a function without saving changes

Changing the value of an active parameter

Activating a parameter for modification

Moving one level “up” in menu structure

11.2.2. Return to weighing mode

The changes made in scale’s memory are permanently saved
on returning to weighing mode with procedure of saving
carried out changes.

Press

key for a few times until the display indicates

message <SAuE?>. Then press :

– to save changes or

– to abandon changes.
On pressing one of the above keys, the scale automatically
returns to weighing mode.

12. WEIGHING

For patients moving on the weighing platform it is recommended to set
higher filtering level (see point 13.1 of this user manual). In such case the
weighing time is longer, but the obtained measurement result is reliable.

12.1. Tarring function

Place a nappy or a blanket on the scale’s weighing platform.

• After indication stabilizing, signaled by accompanying pictograms

press

key (mass indication returns to zero, and Net pictogram is

lit up in the upper left corner of the display).