KERN ADB Series 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 instructions
Analytical balance
KERN ADB
Version 1.0
11/2015
GB
ADB-BA-e-1510

2 ADB-BA-e-1510
GB
KERN ADB
Version 1.0 11/2015
Operating instructions
Analytical balance
Contents
1Technical data................................................................................................ 4
1.1 Dimensions ............................................................................................................................... 5
2Appliance overview ....................................................................................... 6
2.1 Keyboard overview................................................................................................................... 7
2.2 Overview of display.................................................................................................................. 8
3Basic Information (General).......................................................................... 9
3.1 Intended use ............................................................................................................................. 9
3.2 Improper Use ............................................................................................................................ 9
3.3 Warranty.................................................................................................................................... 9
3.4 Monitoring of Test Resources............................................................................................... 10
4Basic Safety Precautions............................................................................ 10
4.1 Pay attention to the instructions in the Operation Manual................................................ 10
4.2 Personnel training.................................................................................................................. 10
5Transport and storage................................................................................. 10
5.1 Testing upon acceptance ...................................................................................................... 10
5.2 Packaging / return transport................................................................................................. 11
6Unpacking, Setup and Commissioning ..................................................... 13
6.1 Installation Site, Location of Use.......................................................................................... 13
6.2 Unpacking, checking and installation.................................................................................. 13
6.3 Levelling.................................................................................................................................. 14
6.4 Electric power supply ............................................................................................................ 15
6.5 Initial Commissioning ............................................................................................................ 15
6.6 Connection of peripheral devices......................................................................................... 15
7Adjustment................................................................................................... 16
7.1 Adjustment with recommended adjustment weight........................................................... 16
7.1.1 Adjustment with 100 g-weight .................................................................................................. 17
8Basic Operation ........................................................................................... 18
8.1 Start-up.................................................................................................................................... 18
8.2 Switch into stand-by mode.................................................................................................... 18
9Applications ................................................................................................. 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

ADB-BA-e-1510 3
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

4 ADB-BA-e-1510
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 time 8 h
Weighing Units g, oz, ct, lb
Smallest part weight for piece
counting 0.1 mg
Reference quantities at
piece counting 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 AC 110 -230 V, 50-60Hz
Balance
Input voltage DC 12 V, 4 A
Interface RS232C

ADB-BA-e-1510 5
1.1 Dimensions

6 ADB-BA-e-1510
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

ADB-BA-e-1510 7
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

8 ADB-BA-e-1510
2.2 Overview of display
Display Description
Display of stable values
The balance is in stand-by mode
g Weighing unit “Gram”
ct Weighing unit „Carat“
lb Weighing unit „Pound“
oz Weighing unit „Ounce“
Pcs Application parts counting
% Application percentage determination

ADB-BA-e-1510 9
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. 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

10 ADB-BA-e-1510
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.

ADB-BA-e-1510 11
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 against shifting and damage as depicted.

12 ADB-BA-e-1510

ADB-BA-e-1510 13
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 (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, checking and installation
Open packaging and remove all parts carefully.
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

14 ADB-BA-e-1510
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 high-
resolution 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.

ADB-BA-e-1510 15
6.4 Electric power supply
Select a country-specific mains plug and plug it into the mains adapter.
Check, whether the voltage acceptance on the scales is set correctly.
Do not connect the scales to the power grid unless the information on
the instrument (sticker) matches the local mains voltage.
Only use KERN original mains adapter. Using other makes requires
consent by KERN.
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.
As soon as the balance is supplied with energy,
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.

16 ADB-BA-e-1510
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. Ensure that there are no objects on the weighing pan.
•Carry out adjustment as near as possible to the balance’s maximum
weight (required adjustment weight see chap. 1). Info about adjustment
weights can be found on the Internet at: http://www.kern-sohn.com
•Observe stable environmental conditions. Stabilisation requires a certain
warm-up time.
•Ensure that there are no objects on the weighing pan.
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.

ADB-BA-e-1510 17
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.

18 ADB-BA-e-1510
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
Press ON/OFF key, the display disappears
The power symbol [ ] will be displayed.
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.

ADB-BA-e-1510 19
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.
Overload warning
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.
8.5 Unity change
By repeated pressing of the MODE key the weighed value can be switched over to
the available weighing and application units.

20 ADB-BA-e-1510
8.6 Weighing with tare
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 result is
displayed.
Wait for stability display, then press the TARE key
The zero display appears.
Weigh the material, the net weight will be indicated.
•
When the balance is unloaded the saved taring value is displayed with
negative sign.
•To delete the stored tare value, remove load from weighing pan and
press the TARE key.