Models EOS Weighing plate, stainless steel Anti-slip rubber

Models EOS Weighing plate, stainless steel Anti-slip rubber
Models EOS
Weighing plate, stainless steel
Anti-slip rubber mat
Comfortable transport due to 2 rollers and 1 grab handle
Overview of displays
Is displayed, when the battery capacity is exhausted.
Stability display:
If the display shows the stability display
the balance is in a stable
status. The
indication disappears if the condition is unstable.
Balance zero display:
Should the balance not display exactly zero despite empty scale pan,
press the TARE button. The balance will be set to zero after a short
standby time.
Hold/animal weighing function active, see chap. 9
Weighing unit [kg
lb], see chap. 8 „Switch-over weighing unit“
Stored tare value, see chap. 8 „Taring“
Keyboard overview
Turn on/off balance
Hold/ animal weighing function
Tare balance
Switch-over weighing unit
3 Basic Information (General)
Proper use
The balance you purchased is intended to determine the weighing value of material
to be weighed. It is intended to be used as a “non-automatic“ balance, i.e. the
material to be weighed is manually and carefully placed in the centre of the weighing
plate. As soon as a stable weighing value is reached the weighing value can be read.
3.2 Improper Use
Do not use balance for dynamic add-on weighing procedures, if small amounts of
goods to be weighed are removed or added. The “stability compensation“ installed in
the balance may result in displaying an incorrect measuring value! (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. Balance may be
damage by this.
Never operate balance in explosive environment. The serial version is not explosion
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.
Warranty claims shall be voided in case
Our conditions in the operation manual are ignored
The appliance is used outside the described use
The appliance is modified or opened
Mechanical damage or damage by media, liquids, natural wear and tear
The appliance is improperly set up or incorrectly electrically connected
The measuring system is overloaded
3.4 Monitoring of Test Resources
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 ( 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
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and commissioning, even if you
are already familiar with KERN balances.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transportation & Storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
Packaging / return transport
Keep all parts of the original packaging for a possibly
required return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove
loose/mobile parts.
Reattach possibly supplied transport securing devices.
Secure all parts such as the glass wind screen, the
weighing platform, power unit etc. against shifting and
6 Unpacking, Setup and Commissioning
6.1 Installation Site, Location of Use
The balances are 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.
Therefore, observe the following for the installation site:
Place the balance on a firm, level surface;
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, vapours 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
Avoid static charge of goods to be weighed or weighing container.
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.
6.2 Unpacking and placing
Open package, take out the appliance and accessories. Verify that there has been
no damage and that all packing items are present.
The balance must be installed in a way that the weighing plate is exactly in horizontal
Mount the display unit in a way that facilitates operation and where it is easy to see.
6.2.1 Scope of delivery / serial accessories
Platform and display unit, (see chap. 2)
4 x adjustment feet (excepted platform size 314.5 x 304.5 cm)
Mains power supply
Wall fixture (with fixing screws)
Operating instructions
6.2.2 Assembly instructions for the use of the wall fixture
6.3 Mains connection
Power is supplied via the external mains adapter. The stated voltage value must be
the same as the local voltage.
Only use original KERN mains adapters. Using other makes requires consent by
6.4 Battery operation
On the rear side of the display unit remove the battery cover and connect 6 x 1.5V
mignon cells. Reinsert the battery cover.
In order to save the battery, the balance switches automatically off after 3 minutes
without weighing. Further shutdown times can be set in the Menu (Function
"A.OFF"), see Section 9.
If the batteries are exhausted, the battery symbol will appear (see chap. 2.1). Switchoff balance and replace batteries at once.
If the balance is not used for a longer time, take out the batteries and store them
separately. Leaking battery liquid could damage the balance.
6.5 Initial Commissioning
In order to obtain exact results with the electronic balances, your balance must have
reached the operating temperature (see warming up time chap. 1). During this
warming up time the balance must be connected to the power supply (mains,
accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
7 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.
Observe stable environmental conditions. A warming up time (see chapter 1) is
required for stabilization.
In weighing mode press the UNIT key and keep it pressed until „CAL“ followed
by the weight value of the required adjustment weight in displayed. „LOAd“ is
displayed alternatively.
Carefully place the required adjustment weight (see tab. 1 „Technical data“) in
the centre of the weighing plate
Press TARE key, adjustment is started.
Wait until the stability display appears, after that the adjustment is finished. The
balance will automatically return to Weighing mode upon successful completion
of the adjustment and will display the weight of the adjustment weight.
Take away adjustment weight.
An error message will be displayed in the event of an adjustment error or
incorrect adjustment weight. Remove the adjustment weight and repeat the
adjustment process.
Keep the adjustment close to the balance. Daily control of the weighing
exactness is recommended for quality-relevant applications.
8 Operation
Press the ON/OFF key.
The balance will carry out a self-test. The balance is ready
for weighing when the weight display appears.
Should the balance not display exactly zero despite empty
weighing plate, press the TARE button. The balance will be
set to zero after a short standby time.
Switching Off
Press ON/OFF button, the display disappears
Place goods to be weighed on balance
Wait for stability display
Read weighing result.
weighing unit
By pressing the UNIT button the weighing result can be
displayed in another unit [kg
Unit conversion: 1 kg = 2.20462 lb
Place an empty weighing container, the weight of the
weighing container will be displayed.
Press the TARE button, the zero display disappears. The
indicator [ ] under [NET] is displayed. The tare weight is
saved until it is deleted.
Weigh the material, the net weight will be indicated.
The taring process can be repeated any number of times,
e.g. when adding several components for a mixture
(adding). The limit is reached when the whole weighing
range is exhausted.
The weight of the weighing container will be displayed as a
minus number after removing the weighing container.
Delete tare
The tare weight is saved until it is deleted.
Unload the balance and press the TARE button, the zero
display appears.
The balance has an integrated animal weighing function (mean
value calculation). Using this function it is possible to weigh
(animal weighing
domestic or small animals exactly (min. load 1% of the max.
one), although they do not stand quiet on the weighing plate.
Put upon weighing goods and press the HOLD key. In the
display the indicator [ ] starts flashing. During this time the
balance takes up several measured values and displays
then the calculated mean value.
This value remains in the display until the HOLD button is
pressed again. The indicator [ ] under [HOLD] goes out,
the balance returns into normal weighing mode.
Press the HOLD button once more to repeat this function
as often as required.
There is no average value calculation in the event of too much movement
(heavy display oscillation).
For example for item weight check, production check etc.
switch-on the balance using ON/OFF button and wait for
zero display.
Put the nominal weight on the weighing plate and tare to
zero using TARE key. Remove the nominal weight.
Put the test objects subsequently on the weighing plate, the
respective deviation from the nominal weight is displayed
with the respective sign to „+“ and „-“ (e.g. + 0.037 g).
According to the same procedure also packages with the
same weight can be produced, referring to a nominal
Back to weighing mode by pressing the TARE button.
9 Menu
Changes are only allowed on the functions
(automatic switch-off function).
(weighing units) and
In weighing mode keep TARE button depressed for approx. 3 sec until "SETUP"
is displayed followed by "UNIT"
Press the HOLD button as often as necessary until the required function is
Press the TARE button to confirm the selected function. The current setting will
be displayed. Using the HOLD or TARE button, select the desired
parameter. Use the HOLD button to return to the menu.
To exit the Menu and save, press the HOLD button as often as required until
"END" is displayed and then confirm by pressing TARE. The balance returns
automatically into weighing mode.
Not documented
Not documented
Factory settings are marked by *.
10 Service, maintenance, disposal
10.1 Cleaning
Before cleaning, disconnect the appliance from the operating voltage.
Please do not use aggressive cleaning agents (solvents or similar agents), but a
cloth dampened with mild soap suds. Take care that the device is not penetrated by
fluids and polish it with a dry soft cloth.
Loose residue sample/powder can be removed carefully with a brush or manual
vacuum cleaner.
Remove spilled weighing goods immediately.
10.2 Service, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Before opening, disconnect from power supply.
10.3 Disposal
Disposal of packaging and appliance must be carried out by operator according to
valid national or regional law of the location where the appliance is used.
11 Error messages, troubleshooting guide
Error message
Capacity of batteries exhausted
EEPROM error display unit
EEPROM error
Minimum weight under min. value
In case of an error in the program process, briefly turn off the balance and
disconnect from power supply. The weighing process must then be restarted from
the beginning.
The displayed weight does not glow.
Possible cause
The balance is not switched on.
The mains supply connection has been
interrupted (mains cable not plugged
Power supply interrupted.
The displayed weight is permanently
Draught/air movement
Table/floor vibrations
The weighing plate is in contact with
foreign matter.
Electromagnetic fields / static charging
(choose different location/switch off
interfering device if possible)
The weighing value is obviously
The display of the balance is not at zero
Adjustment is no longer correct.
The balance is on an uneven surface.
Great fluctuations in temperature.
Electromagnetic fields / static charging
(choose different location/switch off
interfering device if possible)
Should other error messages occur, switch balance off and then on again. If the error
message remains inform manufacturer.
550 x 550 mm
945 x 505 mm
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