KERN & Sohn GmbH
Ziegelei 1
E-Mail: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Internet: www.kern-sohn.com
Operating instructions
Analytical balance
KERN ADB
Version 1.0
11/2015
GB
D-72336 Balingen
Fax: +49-[0]7433-9933-149
ADB-BA-e-1510
GB
KERN ADB
Analytical balance
Version 1.0 11/2015
Operating instructi ons
Contents
1 Technical data ................................................................................................ 4
1.1 Dimensions ............................................................................................................................... 5
2 Appliance overview ....................................................................................... 6
2.1 Keyboard overview ................................................................................................................... 7
2.2 Overview of display .................................................................................................................. 8
3 Basic Information (Gen eral) .......................................................................... 9
3.1 Intended use ............................................................................................................................. 9
3.2 Improper Use ............................................................................................................................ 9
3.3 Warranty .................................................................................................................................... 9
3.4 Monitoring of Test Resources ............................................................................................... 10
4 Basic Safety Precauti o ns ............................................................................ 10
4.1 Pay attention to the instructions in the Operation Manual ................................................ 10
4.2 Personnel training .................................................................................................................. 10
5 Transport and storage ................................................................................. 10
5.1 Testing upon acceptance ...................................................................................................... 10
5.2 Packaging / return transport ................................................................................................. 11
6 Unpacking, Setup and Commissioning ..................................................... 13
6.1 Installation Site, Location of Use .......................................................................................... 13
6.2 Unpacking, checking and install ation .................................................................................. 13
6.3 Levelling .................................................................................................................................. 14
6.4 Electric power supply ............................................................................................................ 15
6.5 Initial Commissioning ............................................................................................................ 15
6.6 Connection of peripheral devices ......................................................................................... 15
7 Adjustment ................................................................................................... 16
7.1 Adjustment with recommended adjustment weight ........................................................... 16
7.1.1 Adjustment with 100 g-weight .................................................................................................. 17
8 Basic Operation ........................................................................................... 18
8.1 Start-up .................................................................................................................................... 18
8.2 Switch into stand-by mode .................................................................................................... 18
9 Applications ................................................................................................. 21
10 Menu ............................................................................................................. 24
10.1 Navigation in the menu .......................................................................................................... 24
10.2 Menu overview ........................................................................................................................ 26
10.3 Description of individual functions ...................................................................................... 27
10.3.1 Automatic zero point correction............................................................................................ 27
2 ADB-BA-e-1510
11 RS232C-interface ......................................................................................... 28
11.1 Technical data ......................................................................................................................... 28
11.2 Interface cable: ....................................................................................................................... 29
11.3 Interface parameters .............................................................................................................. 29
11.3.1 Baud rate .............................................................................................................................. 29
11.3.2 Output condition ................................................................................................................... 30
11.4 Sample protocols (KERN YKB-01N) ..................................................................................... 31
12 Servicing, maintenance, disposal .............................................................. 32
13 Instant help ................................................................................................... 33
ADB-BA-e-1510 3
1 Technical data
KERN ADB 200-4
Readability (d) 0.1 mg
Weighing range (max) 210 g
Reproducibility 0.2 mg
Linearity ± 0.4 mg
Recommended adjusting weight
not supplied (class)
200 g (E2)
Stabilization time 3 sec.
Warm-up tim e 8 h
Weighing Units
Smallest part weight for piece
counting
Reference quantities at
piece counting
g, oz, ct, lb
0.1 mg
5, 10, 20, 50,100
Weighing plate, stainless steel ø 90 mm
Net weight (kg) 6
Permissible ambient condition +10° C to +30° C
Humidity of air 20 ~ 85 % relative (not condensing)
Power supply unit
Input voltage
Balance
Input voltage
AC 110 -230 V, 50-60Hz
DC 12 V, 4 A
Interface RS232C
4 ADB-BA-e-1510
1.1 Dimensions
ADB-BA-e-1510 5
2 Appliance overview
Pos.
Designation
1 Display
2 Handle for operation of the side windshield doors
3 Foot screws
4 Bubble level
5 Windshield
6 Weighing pan
6 ADB-BA-e-1510
2.1 Keyboard overview
Button Function
Turn on/off
Exit menu
Adjustment
Taring
Zeroing
Save setting
Switch-over weighing unit
Selecting an application
How to save the reference
Switch on/off background illumination of display
(keep pressed the buttons long time)
Change setting in the menu
Print out the displayed value
ADB-BA-e-1510 7
2.2 Overview of display
Display Description
Display of stable values
The balance is in stand-by mode
g Weighing unit “Gram”
ct
lb
oz
Pcs
%
Weighing unit „Carat“
Weighing unit „Pound“
Weighing unit „Ounce“
Application parts counting
Application percentage determination
8 ADB-BA-e-1510
3 Basic Information (General)
3.1 Intended 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. T he 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 dest r ucti on o f 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
ADB-BA-e-1510 9
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 T ransport 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.
10 ADB-BA-e-1510
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.
Pack display unit, weighing plate + accessories and power
supply unit separately.
Secure glass windshield against slipping (e.g. using an
adhesive strip).
Reattach possibly supplied transport securing devices.
Secure all parts agains t shi fting and damage as depicted.
ADB-BA-e-1510 11
12 ADB-BA-e-1510
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.
On the installation site observe the following:
• 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 (co ndensation 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, checking and installation
Open packaging and remove all parts careful l y.
Verify that there has been no damage and that all packing items are present.
Scope of delivery / serial accessories
1. Balance
2. Display Unit
3. Weighing pan
4. Carrier weighing plate
5. Air chamber
6. Bottom sheet (round)
7. Mains adapter
8. Country-specific mains plug
9. Operating instructions
ADB-BA-e-1510 13
Prior to any installation and assembly works, the balance must
be separated from the mains supply.
Remove the transport securing from the lower side of the balance.
Install the balance at the intended workplace.
The right place is decisive for the accuracy of the weighing results of highresolution analytic balances (see chap. 6.1).
Put the following parts upon in the right order
• Round bottom sheet
• Air chamber
• Carrier of weighing plate
• Weighing pan
Connect the display unit with the balance.
As the terminal is not rigidly assembled to the balance, it can be freely placed in
the vicinity of the balance but not further away than this is permitted by the
length of the cable.
6.3 Levelling
Level balance with foot screws until the air bubble of the water balance is in the
prescribed circle.
Check levelling regularly.
14 ADB-BA-e-1510
6.4 Electric power supply
Do not connect the scales to the power grid unless the information on
consent by KERN.
As soon as the balance is supplied with energy,
Select a country-specific mains plug and plug it into the mains adapter.
Check, whether the voltage acceptance on the scales is set correctly.
the instrument (sticker) matches the local mains voltage.
Only use KERN original mains adapter. Using other makes requires
Important:
Prior to commissioning check the mains cable for damage.
Make sure that the mains adapter will not be in touch with liquids.
The mains plug must be accessible at any time.
Connect the mains adapter to the connecting socket on the backside of
the balance and to the power mains.
The display unit lights up.
the indicator [ ] is displayed.
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.
6.6 Connection of peripheral devices
Before connecting or disconnecting of additional devices (printer, PC) to the data
interface, always disconnect the balance from the power supply.
With your balance, only use accessories and peripheral devices by KERN, as they
are ideally tuned to your balance.
ADB-BA-e-1510 15
7 Adjustment
• Carry out adjustment as near as possible to the balance’s maximum
• Ensure that there are no objects on the weighing pan.
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. Ensure that there are no objects on the weighing pan.
weight (required adjustment weight see chap. 1). Info about adjustm ent
weights can be found on the Internet at: http://www.kern-sohn.com
• Observe stable environmental conditions. Stabilisation requires a certain
warm-up time.
7.1 Adjustment with recommended adjustment weight
We recommend to carry out all adjustments as close as possible to the maximum
load of the balance.
Press the CAL button until „CAL 100“ will be displayed.
Press TARE key to select „CAL 200“
Put the required adjustment weight (200 g) carefully in
the centre of the weighing plate and close the
windshield doors.
16 ADB-BA-e-1510
Press the CAL key
After successful adjustment the balance automatically
returns to weighing mode.
Take away adjustment weight.
7.1.1 Adjustment with 100 g-weight
Adjustment is also possible with a weight of 100 g, but is not optimal for technical
measuring.
Press the CAL key until „CAL 100“ will be displayed.
Put the adjustment weight (100 g) carefully in the
centre of the weighing plate and close the windshield
doors.
Press the CAL key
After successful adjustment the balance automatically
returns to weighing mode.
Take away adjustment weight.
ADB-BA-e-1510 17
8 Basic Operation
8.1 Start-up
As soon as the balance is supplied with energy, the
indicator [ ] is displayed.
To switch on press the ON/OFF key.
The balance carries out a display test.
As soon as the weight display appears, the balance is
ready for weighing.
8.2 Switch into stand-by mode
In stand-by mode the balance is ready for operation immediately after
switching-on without warm-up time.
To switch off the balance completely, separate it from the mains.
The balance starts in the mode, in which it has been switched off.
Press ON/OFF key, the display disappears
The power symbol [ ] will be displayed.
18 ADB-BA-e-1510
8.3 Zeroing
In order to obtain optimal weighing results, reset to zero the balance before weighing.
Unload the balance.
Press the TARE key.
Wait until the zero display appears.
8.4 Simple weighing
Place the goods to be weighed and close the
windshield.
Wait for stability display .
Read weighing result.
Ov erload warning
8.5 Unity change
By repeated pressing of the MODE key the weighed value can be switched over to
the available weig hing and application units.
Overloading exceeding the stated maximum load (max) of the device,
minus a possibly existing tare load, must be strictly avoided. This could
damage the instrument.
Exceeding the maximum load is indicated by the display „Err“. Unload
weighing system or reduce preload.
ADB-BA-e-1510 19
8.6 Weighing with tare
When the balance is unloaded the saved taring value is displayed with
The dead weight of any weighing container may be tared away by pressing a button,
so that the following weighing procedures show the net weight of the goods to be
weighed.
Set balance to zero
Deposit empty weighing container. The res ult is
displayed.
•
negative sign.
• To delete the stored tare value, remove load from weighing pan and
press the TARE key.
Wait for stability display, then press the TARE key
The zero display appears.
Weigh the material, the net weight will be indicated.
20 ADB-BA-e-1510
9 Applications
9.1 Parts counting
Before the balance can count parts, it must know the average part weight (i.e. the
reference). Proceed by putting on a certain number of the parts to be counted. The
balance determines the total weight and divides it by the number of parts, the socalled reference quantity. Counting is then carried out on the basis of the calculated
average piece weight.
1. Select the reference piece number
In weighing mode call up menu item „C2“, see chap.
10.1
Select the desired reference number of pieces using
the PRINT key, see chap. 10.2.
Confirm setting by pressing the TARE key.
Exit menu using ON/OFF key: Co nfirm query „SAVE“
by pressing the TARE key.
The balance returns automatically into weighing mode
2. Call application
Press the MODE key repeatedly until „Pcs“ is
displayed.
3. Set to zero/taring
Press the TARE key to set the balance to zero or to
tare when using a weighing container.
ADB-BA-e-1510 21
4. Weigh-in reference parts
of the minimum weight of the piece (see chap. 1 „Technical
The reference weight will remain stored even after the weighing balance
Place as many counted pieces to add-up as req ui r ed
by the set reference piece number.
Sample protocol
(KERN YKB-01N)
100 pcs s
Press the SET key to save the reference whereupon
the weighing scale automatically calculates an average
weight per part.
Remove reference weight. The balance is now in parts
counting mode and counts all units on t he weighing
plate.
5. Count the item s
Place load on pan and read the number o f pie c es.
6. Switch-over display between number of items
and weight
Use the MODE key to switch-over the display to the
available units, see chap. 8.5
7. Printing
The display value will be printed out by connecting an
optional printer and pressing the PRINT key (factory
setting).
• Take care
data“).
•
was turned off until the reference is reset.
22 ADB-BA-e-1510
9.2 Percent determination
Percentage calculation facilitates weight display in percent related to a reference
weight equivalent to 100 %.
1. Call application
Press the MODE key several times until „%“ is
displayed.
2. Set to zero/taring
Press the TARE key to set the balance to zero or to
tare when using a weighing container.
3. Reference setting (100 % value)
Put a reference weight which corresponds to 100 %.
Sample protocol
(KERN YKB-01N)
49.99 % s
Store reference by pressing the SET key.
Remove reference weight.
4. Percent determination
Place goods to be weighed on balance.
The weight of the sample is displayed in percentage in
terms of the reference w eig ht.
5. Switch-over the display between percentage
and weight
Use the MODE key to switch-over the display to the
available units, see chap. 8.5
6. Printing
The display value will be printed out by connecting an
optional printer and pressing the PRINT key (factory
setting).
The reference weight (100 %) will remain stored even after the weighing
balance was turned off until the reference is reset.
ADB-BA-e-1510 23
10 Menu
menu items showing the current settings one by
10.1 Navigation in the menu
Access to menu
1.
In weighing mode print first the SET key, then
the PRINT key. The first menu item „C1“
showing the current setting will be displayed.
Select menu items
2.
Press the TARE key to select the individual
one.
Change settings
3.
Press the PRINT key to change the setting of a
selected menu item. Each time the PRINT key
is pressed the next setting will be displayed.
24 ADB-BA-e-1510
Confirm setting with TARE key, the next menu
item will be displayed.
Either carry out more settings or exit and save
menu (see step 4 or 5)
How to save settings and to exit the menu
4.
Press the ON/OFF key, „SAVE“ will be
displayed.
Any changes carried out are stored by pressing
the TARE key. The balance returns
automatically into weighing mode.
Cancel
5.
Press again the ON/OFF key, no changes will
be saved. The balance retur ns aut om ati c all y
into weighing mode.
ADB-BA-e-1510 25
Output for stable and instable weighing values
10.2 Menu overvi ew
Menu item Settings Description
Adjustment mode
Reference quantity
Automatic
zero point correction
Baud rate
C1 - 0 Not documented
C1 – 1* Always use this setting
C2 – 0 10
C2 - 1 20
C2 - 2 50
C2 - 3 100
C2 - 4 1000
C3 - 0
C3 – 1
C3 - 2
C3 - 3
C3 - 4
C3 - 5
C3 - 6
Automatic zero tracking off
Automatic zero point correction ON <1d>
Automatic zero point correction ON <21d>
Automatic zero point correction ON <3d>
Automatic zero point correction ON <4d>
Automatic zero point correction ON <5d>
Not documented
C4 - 0 2400
C4 - 1 1200
C4 - 2 4800
C4 - 3 9600
Data output
C5 - 0 Automatic output of stable weighing values
C5 - 1 Via remote control command (P)
C5 - 2 Continuous data output of stable and instable
C5 – 3
Sound by pressing
the button
Not documented
C6 – 0 switched on
C6 - 1* switched off
C7 - 0* Always use this setting
C7 - 1 Not documented
weighing values (interval 3 s)
after pressing PRINT key
26 ADB-BA-e-1510
10.3 Description of individual functions
10.3.1 Automatic zero point correction
This function is used to tare small variations in weight automatically.
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“. (e.g. slow flow of liquids from a container placed on the balance,
evaporating processes).
When apportioning involves small variations of weight, it is advisable to switch off this
function.
Call up menu item „C3“, see chap. 10.1
Select the desired setting using the PRINT key, see
chap. 10.2.
Save / back to weighing mode, see chap. 10.1
ADB-BA-e-1510 27
11 RS232C-interface
For the connection of a peripheral device (printer, computer) the balance is as per
series equipped with a RS232C-interface.
The following conditions must be met to provide successful communication between
the weighing balance and the peripheral devices.
• Connect balance using a suitable cable with the interface of the peripheral
device. Faultless operation requires an adequate KERN interface cable.
• Communic a ti on par a m eters (baud rate, bits and parity) of balance and
peripheral device must match.
This data exchange is asynchronous using ASCII - Code.
11.1 Technical data
Connection 9 pin d-subminiature bushing
Baud rate 1200 / 2400 / 4800 / 9600 optional
Parity 8 bits, no parity / 1 stop bit / 1 start bit
Pin 2: Receive data
Pin 3: Transmit data
Pin 5: Signal ground
28 ADB-BA-e-1510
11.2 Interface cable:
Balance
9-poles
PC
9-poles
Balance
Printer
poles
2 2
3 3
5 5
9-poles
2 2
3 3
5 7
11.3 Interface parameters
11.3.1 Baud rate
In this menu point the data transfer is adapted to different RS232C-peripheral
devices. The baud rate determines the speed of the data transfer via the serial
interface. For a faultless data transfer, balance and peripheral device must be set to
the same value.
Call up menu item „C3“, see chap. 10.1
Use the PRINT key to select the desired setting.
25-
Options:
C4 - 0 2400 baud
C4 - 1 1200 Baud
ADB-BA-e-1510 29
C4 - 2 4800 baud
C4 - 3 9600 baud
Save / back to weighing mode, see chap. 10.1
11.3.2 Output condition
The data transfer type is determined in this menu item
Call up menu item „C5“, see chap. 10.1
Use the PRINT key to select the desired setting.
Options:
C5 - 0 Automatic edition of stable weighing values
C5 - 1 Via remote control command (P)
C5 - 2 Continuous data output of stable and instable
weighing values (interval 3 s)
C5 - 3 Output for stable and instable weighing values
after pressing PRINT key
Save / back to weighing mode, see chap. 10.1
30 ADB-BA-e-1510
11.4 Sample protocols (KERN YKB-01N)
+ 10.0000 g s Stable/positive weighing value
- 10.0000 g us Instable/negative weighing value
100 pcs s Parts counting (stable weighing value)
49.99 % s Percentage determination (stable weighing value)
11.5 Remote control instructions
Command Terminator
ASCII Hex <CR> <LF>
Function
O 4F 0D 0A
T 54 0D 0A
C 43
M 4D
P 50
0D
0D
0D
0A
0A
0A
Function such as ON/OFF key
Function such as TARE key
Function such as CAL key
Function such as MODE key
Function such as PRINT key
ADB-BA-e-1510 31
12 Ser vi c ing, maintenance, disposal
Before any maintenance, cleaning and repair work disconnect the
appliance from the oper ati ng v ol tag e.
12.1 Cleaning
Please do not use aggressive cleaning agents (solvents or similar agents), but a
cloth dampened with mild soap suds. Ensure that no liquid penetrates into the
device. Polish with a dry soft cloth.
Loose residue sample/powder can be removed carefully with a brush or manual
vacuum cleaner.
Spilled weighing goods must be removed immediately.
12.2 Servicing, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Before opening, disconnect from power supply.
12.3 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.
32 ADB-BA-e-1510
13 Inst a nt hel p
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.
Help:
Fault Possible cause
The displayed weight does
not glow.
• The balance is not switched on.
• The mains supply connection has been interrupted
(mains cable not plug ged in/faulty).
• Power supply interrupted.
The displayed weight is
permanently changing
The weighing result is
obviously incorrect
• Draught/air movement
• Table/floor vibrations
• Weighing pan has contact with other objects.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
• 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.
• Warm-up time was ignored.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
ADB-BA-e-1510 33
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