KERN EOB 10K-3B User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Platform/floor scales
KERN EOB / EOE / EOS
Type EOB_B
Type EOE_B
Type EOS_B
Version 4.1
2017-04
GB
EOB / EOE / EOS-BA-e-1741

2 EOB / EOE / EOS -BA-e-1741
GB
KERN EOB / EOE / EOS
Version 4.1 2017-04
Operating instructions Platform/floor scales
Contents
1Technical data................................................................................................ 4
2Appliance overview ..................................................................................... 10
2.1 Overview of display...................................................................................................12
2.2 Keyboard overview ...................................................................................................13
3Basic Information (General)........................................................................ 14
3.1 Proper use................................................................................................................14
3.2 Improper Use............................................................................................................14
3.3 Warranty...................................................................................................................14
3.4 Monitoring of Test Resources...................................................................................15
4Basic Safety Precautions............................................................................ 15
4.1 Pay attention to the instructions in the Operation Manual .........................................15
4.2 Personnel training.....................................................................................................15
5Transport and storage................................................................................. 15
5.1 Testing upon acceptance..........................................................................................15
5.2 Packaging / return transport......................................................................................15
6Unpacking, Setup and Commissioning ..................................................... 16
6.1 Installation Site, Location of Use...............................................................................16
6.2 Unpacking and placing..............................................................................................16
6.2.1 Scope of delivery / serial accessories...................................................................................... 17
6.3 Mains connection......................................................................................................17
6.4 Battery operation ......................................................................................................17
6.5 Initial Commissioning................................................................................................17
7Adjustment................................................................................................... 18
8Operation...................................................................................................... 20
8.1Start-up.....................................................................................................................20
8.2 Switching Off ............................................................................................................20
8.3 Taring .......................................................................................................................21
8.4 Hold function (animal weighing function)...................................................................22
8.5 Determination of the number of pieces .....................................................................23

EOB / EOE / EOS -BA-e-1741 3
9Menu ............................................................................................................. 24
9.1 Navigation in the menu.............................................................................................24
9.2 Menu overview..........................................................................................................24
10 Servicing, maintenance, disposal .............................................................. 26
10.1 Cleaning ...................................................................................................................26
10.2 Servicing, maintenance.............................................................................................26
10.3 Disposal....................................................................................................................26
11 Error messages, troubleshooting guide.................................................... 26
12 Declaration of conformity ........................................................................... 28

4 EOB / EOE / EOS -BA-e-1741
1 Technical data
Models KERN EOB
KERN (Type)
EOB
10K-3B
EOB
30K-2B
EOB
60K-2B
EOB
60K-2LB
Trademark
EOB
15K5
EOB
35K10
EOB
60K20
EOB
60K20L
Readability (d) 5 g 10 g 20 g 20 g
Weighing range (max) 15 kg 35 kg 60 kg 60 kg
Reproducibility 5 g 10 g 20 g 20 g
Linearity ± 10 g ± 20 g ± 40 g ± 40 g
Recommended
adjustment weight, not
added (class)
10 kg
(M2) 20 kg (M2) 40 kg (M2) 40 kg (M2)
Stabilization time (typical)
3 sec.
Warm-up time
10 min
Input Voltage
220 V- 240 V, AC 50 Hz
Power pack
secondary voltage
9V, 100 mA
Battery
4 x 1.5 V AA (= 6 V)
Battery operation period
60 h
Auto-Off
3 min
Weighing Units
kg, lb, pcs
Ambient temperature
+ 5℃…+ 35°C
Humidity of air
max. 80 % (not condensing)
Display unit
(B x D x H) mm
235 x 114 x 51
Cable length display unit
180 cm
180 cm
180 cm
270 cm
Weighing surface mm
300 x 300
550 x 550
Weight kg (net)
4.2
13.5

EOB / EOE / EOS -BA-e-1741 5
KERN (Type)
EOB
100K-2B
EOB
100K-2LB
EOB
100K-2XLB
Trademark
EOB
150K50
EOB
150K-50L
EOB
150K50XL
Readability (d) 50 g 50 g 50 g
Weighing range (max) 150 kg 150 kg 150 kg
Reproducibility 50 g 50 g 50 g
Linearity ± 100 g ± 100 g ± 100 g
Recommended
adjustment weight, not
added (class)
100 kg
(M2) 100 kg (M2) 100 kg (M2)
Stabilization time (typical)
3 sec.
Warm-up time
10 min
Input Voltage
220 V- 240 V, AC 50 Hz
Power pack
secondary voltage
9V, 100 mA
Battery
4 x 1.5 V AA (= 6 V)
Battery operation period
60 h
Auto-Off
3 min
Weighing Units
kg, lb, pcs
Ambient temperature
+ 5°C …+ 35°C
Humidity of air
max. 80 % (not condensing)
Display unit
(B x D x H) mm
235 x 114 x 51
Cable length display unit
180 cm
270 cm
270 cm
Weighing surface mm
300 x 300
550 x 550
950 x 500
Weight kg (net)
4.2
13.5
19.5

6 EOB / EOE / EOS -BA-e-1741
KERN (Type)
EOB
300K-1B
EOB
300K-1LB
EOB
300K-1XLB
Trademark
EOB
300K100
EOB
300K100L
EOB
300K100XL
Readability (d) 100 g 100 g 100 g
Weighing range (max) 300 kg 300 kg 300 kg
Reproducibility 100 g 100 g 100 g
Linearity ± 200 g ± 200 g ± 200 g
Recommended
adjustment weight, not
added (class)
300 kg
(M2) 300 kg (M2) 300 kg (M2)
Stabilization time (typical)
3 sec.
Warm-up time
10 min.
Input Voltage
220 V- 240 V, AC 50 Hz
Power pack
secondary voltage
9V, 100 mA
Battery (optional)
4 x 1.5 V AA (= 6 V)
Battery operation period
220 h
Auto-Off
3 min
Weighing Units
kg, lb, pcs
Ambient temperature
+ 10°C …+ 35°C
Humidity of air
max. 80 % (not condensing)
Display unit
(B x D x H) mm
235 x 114 x 51
Cable length display unit
180 cm
270 cm
270 cm
Weighing surface mm
300 x 300
550 x 550
945 x 505
Weight kg (net)
4.2
13.5
19.5

EOB / EOE / EOS -BA-e-1741 7
Models KERN EOE
KERN (Type)
EOE
10K-3B
EOE
30K-2B
EOE
60K-2B
EOE
60K-2LB
EOE
100K-2B
Trademark
EOE
10K-3
EOE
30K-2
EOE
60K-2
EOE
60K-2L
EOE
100K-2
Readability (d) 5 g 10 g 20 g 20 g 50 g
Weighing range (max) 15 kg 35 kg 60 kg 60 kg 150 kg
Reproducibility 5 g 10 g 20 g 20 g 50 g
Linearity ± 10 g ± 20 g ± 40 g ± 40 g ± 100 g
Recommended
adjustment weight, not
added (class)
10 kg
(M3) 20 kg (M2) 40 kg (M2) 40 kg (M2) 100 kg (M2)
Stabilization time (typical)
2.5 sec.
Warm-up time
10 min.
Input Voltage
220 V- 240 V, AC 50 Hz
Power pack
secondary voltage
9V, 100 mA
Battery (optional)
4 x 1.5 V AA (= 6 V)
Battery operation period
100 h
Auto-Off
3 min
Weighing Units
kg, lb, pcs
Ambient temperature
+ 5°C …+ 35°C
Humidity of air
max. 80 % (not condensing)
Display unit
(B x D x H) mm
235 x 114 x 51
Cable length display unit
180 cm
270 cm
180 cm
Weighing surface mm
300 x 300
550 x 550
315 x 305
Weight kg (net)
3.8
3.8
3.8
13
3.8

8 EOB / EOE / EOS -BA-e-1741
KERN (Type)
EOE
100K-2LB
EOE
100K-
2XLB
EOE
300K-1B
EOE
300K-1LB
EOE
300K-
1XLB
Trademark
EOE
150K50L
EOE
150K50XL
EOE
300K100
EOE
300K100L
EOE
300K100XL
Readability (d) 50 g 50 g 100 g 100 g 100 g
Weighing range (max) 150 kg 150 kg 300 kg 300 kg 300 kg
Reproducibility 50 g 50 g 100 g 100 g 100 g
Linearity ± 100 g ± 100 g ± 200 g ± 200 g ± 200 g
Recommended
adjustment weight, not
added (class)
100 kg
(M3) 100 kg (M2) 300 kg (M2) 300 kg (M2) 300 kg (M2)
Stabilization time (typical)
3 sec.
Warm-up time
10 min.
Input Voltage
220 V- 240 V, AC 50 Hz
Power pack
secondary voltage
9V, 100 mA
Battery (optional)
4 x 1.5 V AA (= 6 V)
Battery operation period
100 h
Auto-Off
3 min
Weighing Units
kg, lb, pcs
Ambient temperature
+ 5℃…+ 35°C
Humidity of air
max. 80 % (not condensing)
Display unit
(B x D x H) mm
235 x 114 x 51
Cable length display unit
270 cm
180 cm
270 cm
Weighing surface mm
505 x 505
950 x 500
300 x 300
550 x 550
950 x 500
Weight kg (net)
13,0
18.0
3.8
13.0
18.0

EOB / EOE / EOS -BA-e-1741 9
Models KERN EOS
KERN (Type)
EOS
100K-2BXL
EOS
300K-1BXL
Trademark
EOS
150K50XL
EOS
150K50XL
Readability (d) 50 g 100 g
Weighing range (max) 150 kg 300 kg
Reproducibility 50 g 100 g
Linearity ± 100 g ± 200 g
Recommended
adjustment weight, not
added (class)
100 kg
(M2) 300 kg (M2)
Stabilization time (typical)
3 sec.
Warm-up time
10 min.
Input Voltage
220 V- 240 V, AC 50 Hz
Power pack
secondary voltage
9V, 100 mA
Battery (optional)
4 x 1.5 V AA (= 6 V)
Battery operation period
220 h
Auto-Off
3 min
Weighing Units
kg, lb, pcs
Ambient temperature
+ 10°C …+ 35°C
Humidity of air
max. 80 % (not condensing)
Display unit
(B x D x H) mm
235 x 114 x 51
Cable length display unit
270 cm
Weighing surface mm
900 x 550
900 x 550
Weight kg (net)
17.0
17.0

10 EOB / EOE / EOS -BA-e-1741
2 Appliance overview
Models EOB
Weighing pan, stainless steel
Models EOE
Weighing pan varnished steel

EOB / EOE / EOS -BA-e-1741 11
Models EOS
•Weighing pan, stainless steel
•Anti-slip rubber mat
Comfortable transport due to 2 rollers and 1 grab handle

12 EOB / EOE / EOS -BA-e-1741
2.1 Overview of display
Example EOB:
Nr. Description
1
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.
2 Stability display:
If the display shows the stability display [0] the balance is in a stable status. If the
status is instable the [0] display disappears.
3
Stored tare value, see chap. 8.3 „Taring“
4
Gross weight display:
If the gross weight [Gross] appears in the display, the gross weight of the object
and weighing container are displayed.
5 Hold/animal weighing function active, see chap. 8.4
6 Weighing unit [kg

lb]

EOB / EOE / EOS -BA-e-1741 13
2.2 Keyboard overview
Button Function
Turn on/off balance
Hold/ animal weighing function
Tare balance
Switch-over weighing unit
Back to weighing mode, or to menu

14 EOB / EOE / EOS -BA-e-1741
3 Basic Information (General)
3.1 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
pan. 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 pan. 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
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.
3.3 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 or damage by media, liquids, natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded

EOB / EOE / EOS -BA-e-1741 15
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 (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
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 Transport and storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
5.2 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 pan, power unit etc. against shifting and damage.

16 EOB / EOE / EOS -BA-e-1741
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
temperature.
•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 pan is exactly in horizontal
position.
Mount the display unit in a way that facilitates operation and where it is easy to see.

EOB / EOE / EOS -BA-e-1741 17
6.2.1 Scope of delivery / serial accessories
•Platform and display unit, see chap. 2
•Mains adapter
•4 x adjustable feet
•Wall fixture (with fixing screws)
•Operating manual
6.3 Mains connection
Select a country-specific power plug and insert it in the power unit.
Ch
eck, whether the voltage acceptance on the scales is set correctly.
Do not connect the scales to the power grid unless the information on
the scales (sticker) matches the local mains voltage.
Only use KERN original mains adapter. Using other makes requires
consent by KERN.
Important:
Before starting your weighing balance, check the mains cable for
damage.
Ensure that the power unit does not come into contact with liquids.
Ensure access to power plug at all times.
6.4 Battery operation
On the rear side of the display unit remove the battery cover and connect 4 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. Additional switch-off times can be set in the menu (function
"A.OFF").
If the batteries are depleted, the battery symbol is displayed.
Switch-off 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. 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.

18 EOB / EOE / EOS -BA-e-1741
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.
Press and at the same time in weighing
mode. [ECF 1] is displayed.
(The adjustment process can be exited at any time with . The balance returns
then to weighing mode.)
Confirm display of [ECF 1] with . [CAL Z] is
displayed.
Acknowledge with . [--------] followed by [LOAdi] will
be displayed briefly. Then the display to input the
recommended adjustment weight is displayed
(see chap. 1 "Technical data")
The left digit flashes.
Enter the value of the adjustment weight as follows:
Switch to the next digit to the right with .
Increase number with .
Confirm the value entered with .


(example)

EOB / EOE / EOS -BA-e-1741 19
The specified adjustment weight is displayed flashing.
(example)
Place the adjustment weight centrically on the weighing
pan and confirm with . "CAL Y" will flash briefly and a
signalling tone will sound. Adjustment will be performed.
Then the balance returns automatically into the weighing
mode.
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 weight close to the balance. Daily control of the
weighing exactness is recommended for quality-relevant applications.

20 EOB / EOE / EOS -BA-e-1741
8 Operation
8.1 Start-up
Start balance by pressing .
The balance will carry out a self-test As soon as the weight
display appears, the balance is ready for weighing.

Should the balance not display exactly zero despite empty weighing pan, press the
button. The balance will be set to zero after a short standby time.
8.2 Switching Off
Switch off balance with , the display will go off.
