KERN MWN Series User manual

KERN & Sohn GmbH
Ziegelei 1
72336 Balingen-Frommern
Germany
+0049-[0]7433-9933-0
+0049-[0]7433-9933-149
[email protected]
Operating instructions
Wheelchair scales
KERN
MWN
TMWN 300K-1M-A
Version 1.1
2022-12
GB
TMWN_A-BAPS-e-2211

2 TMWN_A-BAPS-e-2211
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TMWN_A-BAPS-e-2211 3
GB
KERN TMWN
Version 1.1 2022-12
Operating instructions
Wheelchair scales
Contents
1Technical data ............................................................................................ 5
2Declaration of conformity.......................................................................... 6
3Appliance overview.................................................................................... 7
3.1 Overview of displays.............................................................................................. 8
3.2 Keyboard overview ................................................................................................ 9
4Basic Information (General) .................................................................... 10
4.1 Proper use............................................................................................................10
4.2 Non-intended product use / contraindications .......................................................11
4.3 Warranty...............................................................................................................11
4.4 Monitoring of Test Resources ...............................................................................12
4.5 Plausibility check...................................................................................................12
5Basic Safety Precautions ........................................................................ 13
5.1 Pay attention to the instructions in the Operation Manual......................................13
5.2 Preparation for use ...............................................................................................13
7Transport and storage ............................................................................. 14
7.1 Testing upon acceptance......................................................................................14
7.2 Packaging / return transport..................................................................................14
8Unpacking, Installation and Commissioning......................................... 15
8.1 Installation Site, Location of Use...........................................................................15
8.2 Unpacking.............................................................................................................15
8.3 Scope of delivery ..................................................................................................15
8.4 Placing..................................................................................................................15
8.5 Magnets display unit.............................................................................................17
8.5.1 Transportation of the balance .............................................................................................. 17
8.6 Battery operation...................................................................................................18
8.8 Rechargeable battery operation using an optional battery power pack..................20
8.9 Mains connection..................................................................................................21
8.10 Initial Commissioning............................................................................................21
9Operation .................................................................................................. 22
9.1 Weighing...............................................................................................................22
9.2 Taring ...................................................................................................................23
9.2.1 Subsequent tare weight ....................................................................................................... 24
9.2.2 Pretare.................................................................................................................................. 24
9.3 HOLD function......................................................................................................26
9.3.1 Calculating Body Mass Index............................................................................................... 27
9.3.2 Classification of BMI values................................................................................................. 27
9.4 Automatic switch-off function „AUTO OFF“ ...........................................................28
9.5 Acoustic signal when pressing button ...................................................................30
9.6 Setting time and date............................................................................................31

4 TMWN_A-BAPS-e-2211
10 Menu.......................................................................................................... 32
10.1 Navigation in the menu .........................................................................................32
10.2 Menu overview......................................................................................................33
11 Communication with peripheral devices via KUP connection............. 35
11.1 KERN Communications Protocol (KERN Interface Protocol).................................36
11.2 Data output after pressing the PRINT button < manual >......................................36
11.3 Automatic data output < auto>..............................................................................37
11.4 Continuous data output < cont > ...........................................................................38
11.5 Data format...........................................................................................................39
11.6 WLAN...................................................................................................................40
11.7 Print function.........................................................................................................41
12 Bluetooth .................................................................................................. 42
13 Alibi memory optional.............................................................................. 42
14 Servicing, maintenance, disposal........................................................... 43
14.1 Cleaning / disinfecting...........................................................................................43
14.2 Sterilisation...........................................................................................................43
14.3 Servicing, maintenance.........................................................................................43
14.4 Disposal................................................................................................................43
15 Error messages........................................................................................ 44
16 Instant help for troubleshooting............................................................. 45
17 Adjustment ............................................................................................... 46

TMWN_A-BAPS-e-2211 5
1 Technical data
KERN
MWN 300K-1M
Item no./ Type
TMWN 300K-1M-A
Weighing range (max)
300kg
Minimum load (Min)
2 kg
Readability (d)
0.1 kg
Linearity
0.1 kg
Display
LCD with 25mm high digits
Recommended adjustment weight,
(Category)
300 kg (M1)
Stabilization time (typical)
3 sec.
Warm-up time
10 min
Operating temperature
10° C …. + 40° C
Storage and transportation
environment
-20 to +60°C, and 30% to 90% relative humidity
Humidity of air
max. 80 % (not condensing)
Atmospheric pressure (kPa)
70kpa-106kpa
Input Voltage
6 V / 1 A
Battery use
6 x 1.5 V AA
Battery working range:
48 hours backgroud illumination off
24 hours background illumination on
Loading time: 8 hours
Auto Off
after 3, 5, 15, 30 min without load change (adjustable)
Dimensions fully mounted (W x D x
H) mm
1155 x 830 x 65
Weighing plate mm
910 x 740
Weight kg (net)
28.6
Rechargeable battery operation
optional; 3.8 VDC –4.2 VDC / 3700 mAh
Data interface
Internal: Wi-Fi
Optional / External:
KUP (RS232, Bluetooth, USB-D, Extension box)

6 TMWN_A-BAPS-e-2211
2 Declaration of conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce

TMWN_A-BAPS-e-2211 7
3 Appliance overview
1. Weighing pan
2. Hand grip
3. Display Unit
4. Rechargeable battery
compartment
5. Mains connection
6. KUP

8 TMWN_A-BAPS-e-2211
3.1 Overview of displays
Display
Designation
Description
Stability display
Scales are in a steady state
Zeroing display
Should the balance not display exactly
zero despite empty weighing plate, press
the button. Your balance will be
set to zero after a short standby time.
NET
Net weight display
Illuminated when net weight is displayed
Illuminated after weighing scale was
tared
GROSS
Gross weight display
Illuminated when gross weight is
displayed
HOLD
HOLD function
HOLD function active
BMI
BMI function
Illuminated while BMI function is enabled
Battery symbol
Shows the charging capacity of the
batteries
kg
Weighing unit
Displays the weighing unit
WiFi-interface
Shows the connection to the cableless
network

TMWN_A-BAPS-e-2211 9
3.2 Keyboard overview
Button
Designation
Function
ON/OFF button
Turn on/off
HOLD button
Hold function/Calculation of a stable weight value
In menu:
•Select menu items
For numeric entry:
•Lowering numeric value
BMI button
Calculation of the Body Mass Index
In menu:
•Return to weighing mode
Print button
Data transfer via interface
In menu:
•Select menu items
For numeric entry:
•Increase numerical value
Function key
Function quick key
Quick call-up of a function stored before
Zeroing key
Weighing scale will be reset to „0.0“
In menu:
•Confirm selection
For numeric entry:
•Change decimal digit
•Confirm entry
TARE key
Tare balance

10 TMWN_A-BAPS-e-2211
4 Basic Information (General)
4.1 Proper use
This weighing scale is designed for determining the weight of a person whilst
standing or sitting, according to the model.
Concerning this balance, the person to be weighed should step onto the centre of the
weighing platform and remain standing without moving, or when weighing on wheel
chair, the wheel chair must be pushed entirely onto the weighing platform resp. an
electrical wheel chair has to move independently and the wheels must be fastened
for the weighing process.
As soon as a stable weighing value is reached, the weighing value can be read.
The weighing scale is designed for continuous duty.
The weighing platform may only be stepped on by persons
capable of standing on both feet on the weighing platform or who
can sit quietly (chair scales and wheelchair scales).
The weighing platform or the foot rests are fitted with an anti-slip surface that must
not be removed or covered during weighing a person.
The balance should be checked for correct condition prior to each utilisation by a
person familiar with proper operation of the balance.
The WIFI interface allows a wireless transfer of the measurement results to a PC.
Scales fitted with a serial interface may only be connected to
appliances in compliance with Directive EN60601-1.
If the balance doesn’t have any contact with the transfer cable,
do not touch the transfer port in order to avoid an ESD-failure.