KERN MPU 250K100 User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: [email protected]om
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Personal scales
KERN MPU
Version 1.1
01/2010
GB
MPU-BA-e-1011

GB KERN MPU
Version 1.1 01/2010
Operating instructions for personal scales
Table of Contents
1Technical Data ............................................................................................... 3
2Appliance overview ....................................................................................... 4
3Basic Information (General).......................................................................... 5
4Basic Safety Precautions.............................................................................. 7
5Transportation & Storage.............................................................................. 7
6Unpacking, Setup and Commissioning ....................................................... 8
6.1 Installation............................................................................................................................... 10
7Operation...................................................................................................... 12
8Adjustment................................................................................................... 15
9BMI trend display......................................................................................... 20
10 Data output................................................................................................... 21
11 Printer mode................................................................................................. 22
11.1 Printout example .................................................................................................................... 22
11.2 Setting automatic printed edition......................................................................................... 22
11.3 Setting manual data output................................................................................................... 24
12 Error messages............................................................................................ 25
13 Service, maintenance, disposal.................................................................. 26
14 Instant help................................................................................................... 27
MPU-BA-e-0911 2

3 MPU-BA-e-0911
1 Technical Data
KERN MPU 250K100
Readability (d) 100 g
Weighing range (max) 250 kg
Reproducibility 200 g
Linearity 200 g
Weighing Units kg
Adjustment weight 200 kg
Height measurement (cm) 80 – 220
Height measurement tolerance ± 1 cm
Supply voltage: 220V – 240 V AC 50 Hz
Electric Supply Secondary voltage powerpack: 12 V 500 mA
Operating temperature + 5°C … + 35°C
Humidity of air max. 80 % (not condensing)
Dimensions fully mounted (W x
D x H) mm 380 x 525 x 2400
Weighing surface 380 x 370 x 80
Weight kg (net) 15

2 Appliance overview
(For assembly see Section 7.1)
2
3
1
6
4
7
7
5
5
7
7
1. Ultrasonic sensor
2. Display
3. Keyboard (only for servicing purposes)
4. Connections
5. Rollers
6. Weighing plate
7. Adjustable feet
MPU-BA-e-0911 4

5 MPU-BA-e-0911
3 Basic Information (General)
Intended use
These balance is used to calculate the weight of people
standing upright in the private sphere. Utilisation of this
balance in the medical field is not permissible.
The person must step on the weighing plate for the weighing
procedure. As soon as a stable weighing value is reached the
weighing value can be read.
Non-intended
use
Do not use balance for dynamic weighing. In the event that
small quantities are removed or added to the material to be
weighed, incorrect weighing results can be displayed due to
the “stability compensation“ in the balance.
(Example: Slowly draining fluids from a container on the
balance.)
Do not leave permanent load on the weighing plate. This may
damage the measuring system.
Impacts and overloading exceeding the stated maximum load
(max) of the balance, minus a possibly existing tare load, must
be strictly avoided. This could cause damage to the balance.
Never operate balance in explosive environment. The serial
version is not explosion protected.
The structure of the balance may not be modified. This may
lead to incorrect weighing results, safety-related faults and
destruction of the balance.
The balance may only be used according to the described
conditions. Other areas of use must be released by KERN in
writing.

MPU-BA-e-0911 6
Warranty Warranty claims shall be voided in case
Our conditions in the operation manual are ignored
The appliance is used outside the described uses
The appliance is modified or opened
Mechanical damage and damage caused by media, liquids
Natural wear and tear
The appliance is improperly set up or incorrectly electrically
connected
The measuring system is overloaded
Dropping the balance
Test device
control In the framework of quality assurance the measuring-related
properties of the balance and, if applicable, the testing weight,
must be checked regularly. The responsible user must define a
suitable interval as well as type and scope of this test.
Information is available on KERN’s home page (www.kern-
sohn.com) with regard to the monitoring of balance test
substances and the test weights required for this. In KERN’s
accredited DKD calibration laboratory test weights and
balances may be calibrated (return to the national standard)
fast and at moderate cost.

4 Basic Safety Precautions
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN
balances.
5 Transportation & Storage
Testing upon
acceptance When receiving the appliance, please check packaging
immediately, and the appliance itself when unpacking for
possible visible damage.
Packing/
Return
transport
ÖKeep all parts of the original packaging for a possibly
required return.
ÖOnly use original packaging for returning.
ÖPrior to dispatch disconnect all cables and remove
loose/mobile parts.
ÖSecure all parts e.g. powerpack against slipping and
damage
7 MPU-BA-e-0911

MPU-BA-e-0911 8
6 Unpacking, Setup and Commissioning
Installation
location,
Deployment
location
The balance is designed in a way that reliable weighing results
are achieved in common conditions of use. You will work
accurately and fast, if you select the right location for your
balance.
On the installation site observe the following:
Place scales on a stable, even surface
Maintain a gap of 30 cm on all sides away from walls and
other objects or obstacles.
Avoid extreme heat as well as temperature fluctuation
caused by installing next to a radiator or in the direct
sunlight;
Protect the balance against direct draughts due to open
windows and doors;
Avoid jarring during weighing;
Protect the balance against high humidity, vapors and
dust;
Do not expose the device to extreme dampness for longer
periods of time. Non-permitted condensation
(condensation of air humidity on the appliance) may occur
if a cold appliance is taken to a considerably warmer
environment. In this case, acclimatize the disconnected
appliance for ca. 2 hours at room temperature.
Avoid static charge of the balance and of the person to be
weighed.
Avoid contact with water.
If electro-magnetic fields or static charge occur, or if the power
supply is unstable major deviations on the display (incorrect
weighing results) are possible. In that case, the location must
be changed.
Unpacking Remove the individual components of the balance or the
complete balance from the packaging with care and install at
the intended location.

Scope of supply •Scales
(The top unit is packed and delivered separately from the
bottom unit, see Fig. 1)
•Screws
•Interface cable
•Operating instructions
Fig. 1
1. Top unit
2. Bottom unit
Placing
•The assembled scales are 2.40 m high.
•Maintain a gap of 30 cm on all sides away from walls and
other objects or obstacles.
21
9 MPU-BA-e-0911

6.1 Installation
ÖPlace the bottom unit together with the weighing plate on the
floor
ÖUnscrew the 6 screws on
the back of the top unit
(Fig.2)
ÖOpen cover with care
Fig. 2
CAUTION
Ensure without fail that the existing cable connection to the
keyboard is not disconnected.
ÖInsert the top unit into the
bottom unit
ÖInsert the strut into the
guide in the aluminium
frame for this purpose.
Fig. 3
CAUTION
Ensure without fail that the cable for the measuring cell (LOAD
CELL) and the cable for the interface and the power supply
(COM.CONN) are not damaged.
MPU-BA-e-0911 10

ÖPlug in the plug connector
for the COM.CONN cable.
ÖPlug in the plug connector
for the LOAD CELL cable.
21
Fig. 4
1. COM.CONN
(interface)
2. LOAD CELL
(measuring cell)
CAUTION
Ensure correct allocation of plug connectors, as there is risk of
confusion!
ÖClose the display cover and tighten the 6 screws on the back
(Fig.2). This fixes the cover in place.
ÖTighten 2 screws on the
back of the bottom unit.
(Fig.5)
The top unit is now securely
connected to the bottom
unit.
Fig.5
11 MPU-BA-e-0911

7 Operation
Keyboard
overview
(at the back)
exclusively for servicing purposes
Overview of
displays
1. Weight value
2. Height data
3. BMI value/temperature
4. BMI ranges (see Chapter 9)
5. BMI value in the underweight range
6. BMI value in the normal weight range
7. BMI value in the overweight range
8. Zero display
MPU-BA-e-0911 12

Commissioning ÖConnect the scales to the power supply with the plug-in power
pack.
ÖThe balance will carry out a self-test
If "HIGH ON" is displayed, the ultrasonic sensor is working
properly
24 Q
STEP
UP
(Example)
If "Step up" is displayed, the scales are now ready for operation.
Weighing
Stand upright in the centre of
the scales without shoes
Do not move during the
measuring process (A signal
will sound upon completion of
the weighing procedure).
Look towards the display
24 Q
STEP
UP
ÖHave person stand in the centre of the scales.
13 MPU-BA-e-0911

Ø
(Example)
ÖWait for signal and then read the results.
Weight, height and BMI (See Chapter 9) will be displayed.
The LED displays the corresponding BMI trend.
•The above results remain "frozen" for approx. 5 seconds after
stepping off the scales.
•Further measurement can only be carried out after the
weighing plate has been relieved.
MPU-BA-e-0911 14

8 Adjustment
As the acceleration value due to gravity is not the same at every location on earth,
each balance must be coordinated - in compliance with the underlying physical
weighing principle - to the existing acceleration due to gravity at its place of location
(only if the balance has not already been adjusted to the location in the factory). This
adjustment process must be carried out for the first commissioning, after each
change of location as well as in case of fluctuating environment temperature. To
receive accurate measuring values it is also recommended to adjust the balance
periodically in weighing operation.
Use the adjustment weight (See chap: 1) to check and adjust the accuracy of the
balance at any time.
Adjustment
procedure
Observe stable environmental conditions.
MMENU
DATA
ÖPress :
„Menu“ and „dAtA“ is displayed
MMENU
CAL
ÖPress repeatedly until “CAL“ appears
15 MPU-BA-e-0911

Ø
ÖPress :
“CALib“ followed by the adjustment weight displayed as last
appears. Furthermore „LOAd“ is displayed
ÖChange adjustment weight:
Example: 30.0 kg:
Press and keep pressed: Display goes to „0.0“.
The adjustment weight is deleted.
ÖPress and keep pressed: Enter the first digit of the
weight value: „0.3“
MPU-BA-e-0911 16

ÖWith double click on shift decimal point to the left:
„3.0“
ÖWith an other double click on shift decimal point to
the left: „30.0“
ÖPress : „CLEAr“ appears
17 MPU-BA-e-0911

Ø
ÖPress anew: The light emitting diode flashes for a
short time,
“CALiB“ and „ZERO“ appear briefly, after that appears
the entered adjustment weight „30.0“ and „PUt“
Ø
ÖPlace the adjustment weight in the center of the weighing
surface
The set adjustment weight must also be placed upon
ÖPress :
“CALib“ and „LOAd“ appear. Moreover the light emitting
diode flashes anew.
After that „CALib“ and „SAVE“ and „???“ are displayed
MPU-BA-e-0911 18

Ø
Ø
Ø
24 Q
STEP
UP
ÖSave with :
“SAVED“ appears.
The adjustment is herewith concluded.
The balance changes automatically into weighing mode:
“HIGH ON“ and „StEP UP“ is displayed.
19 MPU-BA-e-0911

9 BMI trend display
Above 30.0
+ between 30.0 and 27.5
between 27.5 and 25.0
between 25.0 and 22.8
✓between 22.8 and 20.6
between 20.6 and 18.5
between 18.5 and 17.5
- between 17.5 and 16.5
below or equal to 16.5
These figures are only guide values.
There may be slight variations depending on age and sex.
MPU-BA-e-0911 20