KERN ABS User manual

KERN & Sohn GmbH
Ziegelei 1 Tel: +49-[0]7433
D-72336 Balingen
E-Mail: [email protected]
- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instruction
Analytical balance
KERN ABS/ABJ
Version 1.9
11/2010
GB
ABS/ABJ-BA-e-1019

ABS/ABJ-BA-e-1019
2
GB KERN ABS/ABJ
Version 1.9 11/2010
Operating instruction
Analytical balance
Table of contents:
1TECHNICAL DATA ............................................................................................................................. 4
2KERN ABS/ABJ CONTROL COMPONENTS.................................................................................... 6
2.1 BRIEF DESCRIPTION OF DISPLAY ..................................................................................................... 7
2.2 KEYBOARD DESCRIPTION ............................................................................................................... 8
2.3 IMPORTANT NOTICES...................................................................................................................... 9
2.3.1 Ambient conditions ................................................................................................................. 9
2.3.2 Operating instructions for the balance.................................................................................. 10
2.4 BALANCE INSTALLATION ............................................................................................................... 10
2.4.1 Prepare the weighing chamber............................................................................................. 10
2.4.2 Power connection................................................................................................................. 11
2.4.3 Connection of electrical components (peripherals).............................................................. 11
2.4.4 Levelling the balance with the level...................................................................................... 11
2.5 STARTING THE BALANCE .............................................................................................................. 12
2.5.1 Warm-up time ....................................................................................................................... 12
2.5.2 On and off (standby mode)................................................................................................... 12
2.5.3 Auto-check............................................................................................................................ 12
2.5.4 Taring.................................................................................................................................... 13
2.5.5 Simple weighing (weight measurement)............................................................................... 13
2.5.6 Unit change-over .................................................................................................................. 13
2.6 DATA INTERFACE ......................................................................................................................... 13
2.7 CARE AND MAINTENANCE ............................................................................................................. 14
2.7.1 Cleaning................................................................................................................................ 14
2.7.2 Safety check ......................................................................................................................... 14
3DECLARATION OF CONFORMITY ................................................................................................. 15
4OPERATING MENU OF THE BALANCE......................................................................................... 17
4.1 MODIFYING THE SETTINGS............................................................................................................ 17
4.2 SETTING MODIFICATIONS.............................................................................................................. 17
4.3 MENU CALL ................................................................................................................................. 18
4.4 OPERATING MENU SUMMARY ........................................................................................................ 19
4.4.1 Selection of main menu........................................................................................................ 19
4.4.2 Menu indicator for FUnC.SEL menu option.......................................................................... 20
4.4.3 Menu indicator forUnit.SEL menu option.............................................................................. 21
4.4.4 Menu indicator for SETTinG menu option............................................................................ 23
4.4.5 Menu indicator for intFACE menu option.............................................................................. 24
4.4.6 Menu indicator for iF :USEr menu option ............................................................................. 25
5ADJUSTMENT .................................................................................................................................. 26
5.1 ADJUSTMENT WITH EXTERNAL WEIGHT.......................................................................................... 26
5.2 CHECKING THE BALANCE WITH THE INTERNAL WEIGHT (ABJ ONLY)................................................. 27
5.3 CHECKING THE BALANCE WITH THE EXTERNAL WEIGHT .................................................................. 27
5.4 CHECKING THE BALANCE WITH THE INTERNAL WEIGHT (ABJ ONLY)................................................. 28

ABS/ABJ-BA-e-1019 3
6APPLICATION PROGRAMS ............................................................................................................29
6.1 AUTO-ZERO FUNCTION................................................................................................................. 29
6.2 FILTER ........................................................................................................................................ 29
6.3 STANDBY RANGE ......................................................................................................................... 30
6.4 CHANGING THE UNITS .................................................................................................................. 31
6.5 PERCENTAGE WEIGHING .............................................................................................................. 32
6.6 COUNTING .................................................................................................................................. 33
6.7 AUTO-PRINT DISPLAY ................................................................................................................... 34
6.8 CAPACITY INDICATOR (ANALOG DISPLAY) ...................................................................................... 35
6.9 SELECTING THE ADJUSTMENT TYPE .............................................................................................. 36
6.10 ADJUSTING THE ADJUSTMENT WEIGHT .......................................................................................... 37
6.11 SETTING THE ID NUMBER ............................................................................................................. 38
6.12 SETTING THE DATE (ABJ ONLY).................................................................................................... 39
6.13 SETTING THE TIME (ABJ ONLY)..................................................................................................... 40
6.13.1 Entering seconds.............................................................................................................. 40
6.13.2 Setting hours and minutes................................................................................................ 41
6.14 PRINTING OFF DATE AND TIME (ABJ ONLY).................................................................................... 42
7DESCRIPTION OF INTERFACES .................................................................................................... 43
7.1 GENERAL INSTRUCTIONS.............................................................................................................. 43
7.2 GENERAL DATA ........................................................................................................................... 43
7.3 EXAMPLE FOR CABLE WIRING: ...................................................................................................... 43
7.4 FORMATTING INPUT AND OUTPUT DATA ......................................................................................... 44
7.5 ENTERING COMMANDS ................................................................................................................. 45
8TROUBLESHOOTING ...................................................................................................................... 46
8.1 ERROR DISPLAY........................................................................................................................... 47
9IMPORTANT INFORMATION...........................................................................................................48
Please read the operating instructions carefully before starting to work with the balance.
After unpacking, check that the apparatus has no visible external damage.
Keep all packing materials for future transport. Unplug all connected cables prior to
shipping to prevent any unnecessary damage.

ABS/ABJ-BA-e-1019
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1 Technical data
Model ABS 80-4 ABS 120-4 ABS 220-4
Readout (d) 0.1 mg 0.1 mg 0.1 mg
Weighing range (Max) 83 g 120 g 220 g
Recommended adjusting weight, not
included (class) 50 g (E2) 100 g (E2) 200 g (E2)
Reproducibility 0.1 mg
Linearity ± 0.2 mg
Weighing units ct, dwt, g, gn, lb, mg, mo, oz, ozt,
tl (Cn), tl (HK), tl (Singap, Malays), tl (Tw)
Response time 3 sec.
Operating temperature + 10° .... + 30° C
Electric power supply 12 VDC
Weighing plate spezial steel Ø 80 mm
Case (W x D x H) mm 225 x 315 x 330
Weight net (aprox.) 7 kg
Model ABJ 80-4M ABJ 120-4M ABJ 220-4M
Readout (d 0.1 mg 0.1 mg 0.1 mg
Vertification value (e) 1 mg 1 mg 1 mg
Weighing range (Max) 83 g 120g 220 g
Min. load (Min) 0.01 g 0.01 g 0.01g
Reproducibility 0.1 mg
Linearity ± 0.2 mg
Weighing units g, ct
Response time 3 sec.
Operating temperature + 10° .... + 30° C
Electric power supply 12 VDC
Weighing plate spezial steel Ø 80 mm
Case (W x D x H) mm 225 x 315 x 330
Weight net (aprox.) 7 kg

ABS/ABJ-BA-e-1019 5
Model ABJ 320-4
Readout (d) 0.1 mg
Weighing range (Max) 320 g
Reproducibility 0.1 mg
Linearity ± 0.2 mg
Weighing units g, ct
Response time 3 sec.
Adjusting weight intern
Operating temperature + 10° .... + 30° C
Electric power supply 220 V – 240 V AC 50 Hz
Weighing plate spezial steel Ø 80 mm
Case (W x D x H) mm 205 x 165 x 240
Weight net (aprox.) 7 kg

ABS/ABJ-BA-e-1019
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2 KERN ABS/ABJ control components
ferrite core
12
11
10
Pos. Description Pos. Description
1 Balance housing 7 Glass doors
2 Weighing plate 8 Weighing chamber
3 Weighing plate holder 9 Rear wall of balance
4 Protective ring 10 Connection for voltage adapter
5 Level 11 RS232 C data interface
6 Support foot 12 AC power supply

ABS/ABJ-BA-e-1019 7
2.1 Brief description of display
Analog display Weight unit display
Display Description
Standby indicator
Lights if the weight measurement is stable.
Weight indicator
Lights during calibration
Also lights on the ABJ model when calibration needs to be carried out.
Menu indicator
When the menu is called up, the display is activated.
Communication display
Lights when an RS-232C or DATA I/O connection has been established
AP Auto-print display
Lights when Auto-Print is ON
Standby indicator
Lights when the balance is in standby mode

ABS/ABJ-BA-e-1019
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2.2 Keyboard description
During weighing During menu selectionKey
Pressed
briefly
Pressed
for 3 sec
Pressed
briefly
Pressed
for 3 sec
ON/OFF/ESC
Toggles balance
to standby
or cancels
function
e.g., (E CAL)
——
Returns to
previous menu
Returns to
weighing mode
CAL
MENU
In part and
percentage
mode: selection
menu for part
and %
Selects function
values within
function ——
TARE
Tares or
zeros
of weight
display
——
Selects function
or
scrolls one
menu option
toward right in
menu
——
UNIT
Toggles of
weight units
(must be set up
in operation
menu of
balance)
Increases
numeric value
for selected
figure ——
PRINT
Outputs weight
at external
device (printer)
or PC
——
Selects figure to
be modified
——

ABS/ABJ-BA-e-1019 9
2.3 Important notices
2.3.1 Ambient conditions
The items of equipment are constructed to provide reliable
weighing results under normal ambient conditions in a
functioning laboratory. A suitable location for the balance will
make it easier to obtain fast, reliable results with the balance.
The following steps must be taken when siting the balance:
Place the balance on a flat, stable surface;
Prevent extreme heat due to placement near a heat source
or direct sunlight;
−Protect the balance from direct air currents due to open
doors or windows;
−Prevent strong vibrations during weighing;
−Protect the balance from harsh chemical vapours;
−Do not use the balance in areas where there is any risk of
explosion.
Do not expose the apparatus to high humidity for extended
periods of time. Dew (condensation due to moisture in the
apparatus) may result when transferring the apparatus from
a cold area to a noticeably warmer environment. In this
case, acclimatise the apparatus to the ambient temperature
for about 2 hours.
Avoid magnetic and electric fields around the balance.
Check the balance with the verification weights at least once
a day.
The warranty is voided if the balance is opened.

ABS/ABJ-BA-e-1019
10
2.3.2 Operating instructions for the balance
Remove the product from the weighing plate after
weighing it.
Do not force the balance to open.
Do not allow the balance to come into contact with water
or metal shavings.
If the balance is not used for an extended period of time
(7 days), unplug the power supply.
Do not weigh magnetic objects.
Do not exert any pressure on the weighing plate.
2.4 Balance installation
Remove the adhesive sheeting, adhesive strips and foam
material.
2.4.1 Prepare the weighing chamber.
Place the following parts on the balance in sequential
order:
-Protective ring (4)
-Plate holder (3)
-Plate (2)

ABS/ABJ-BA-e-1019 11
2.4.2 Power connection
The balance is powered by an external power supply. The
voltage printed on the device must match the local mains
voltage.
Note!
Use only original power supplies. The use of other brands,
even if authorised by official agents, must be approved by a
specialist.
Plug the balance into the power outlet.
Turn on the power supply at the mains voltage.
Make sure there are no objects on the weighing plate.
The balance will work through a check procedure. In
addition, ABJ series balances carry out calibration using a
fitted calibration weight.
The “oFF“ message will appear on the display.
The balance will then be in standby mode. Press the
"ON/OFF" key to turn on the balance.
2.4.3 Connection of electrical components (peripherals)
Unplug the balance from the power outlet before connecting
or removing additional devices (printer, PC) from the data
interface.
2.4.4 Levelling the balance with the level
Use the support screws to level the balance until it is
horizontal and the air bubble is inside the red circle.

ABS/ABJ-BA-e-1019
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2.5 Starting the balance
2.5.1 Warm-up time
In order for the balance to provide accurate results, the
device must be warmed up for at least 4 hours after being
plugged for the first time or after an extended power
outage. After this time, the balance will have reached the
necessary operating temperature.
2.5.2 On and off (standby mode)
To turn the display on and off, use the ON/OFF/ESC key.
2.5.3 Auto-check
An automatic function test of the balance electronics is
carried out after switching on from standby mode. At the
end of the test, the display will indicate zero. The balance is
now ready to be used.
The following symbols will appear in the display window of
the balance for information purposes:
oFF The balance is in OFF mode.
The balance is not plugged into the power mains.
(New connection, power outage above 1 second)
Standby The balance is in standby mode.
The display was turned off by pressing the ON/OFF/ESC
key and is now available. The balance is ready to run when
turned on and does not require a warm-up period. In
addition, the time is displayed on the ABJ model in standby
mode.
CHE 5 The CHE display appears after the power is turned on.
The balance will work through a check procedure (5, 4, 3, 2,
1) and then switch to OFF mode.

ABS/ABJ-BA-e-1019 13
2.5.4 Taring
Accurate weighing is only possible if the display indicated
0.0000 g before the objects were weighed. Press the
TARE/key to zero the weight display. Taring can be
done over the entire weight range of the balance.
2.5.5 Simple weighing (weight measurement)
Place the item to be weighed on the plate. Read the weight
when the standby symbol appears on the display.
2.5.6 Unit change-over
The units set in the balance operation menu can be called
up by pressing the UNIT/ key.
2.6 Data interface
The interface connection is located at the rear of the
balance.
Note!
Unplug the balance from the power outlet before connecting
or removing additional devices (printer, PC) from the data
interface.
To output data, press the PRINT/ key.
Refer to the "Description of interface" chapter for more
information on the data interface.

ABS/ABJ-BA-e-1019
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2.7 Care and maintenance
2.7.1 Cleaning
Always unplug the device from the power outlet before
cleaning the apparatus.
Do not use harsh cleaning products (solvents or similar)!
Use a damp cloth, moistened with a mild soapy solution.
Make sure no moisture enters the apparatus, wiping with a
soft, dry towel.
Remove any test residue/dust with care by using a fine
paintbrush or hand vacuum cleaner.
2.7.2 Safety check
If risk-free service is no longer guaranteed, you must place
the apparatus out of service by unplugging it from the power
outlet and protecting from further use.
Risk-free service of the power supply is no longer
guaranteed in the following cases.
- If the power supply is obviously damaged
- If the power supply no longer works
- After extended storage under adverse conditions.
In such cases, you must contact the supplier.
Any repairs must be performed by specialised technicians
with access to the necessary repair documentation and
instructions.

ABS/ABJ-BA-e-1019 15
3 Declaration of Conformity
KERN & Sohn GmbH
D-72322 Balingen-Frommern
Postfach 4052
E-Mail: [email protected]
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.de
Konformitätserklärung
EC-Konformitätserklärung EC-Declaration of -Conformity
EC- Déclaration de conformité EC-Declaración de Conformidad
EC-Dichiarazione di conformità EC-Conformiteitverklaring
EC- Declaração de conformidade EC- Prohlášení o shode
EC-Deklaracja zgodności EC-Заявление осоответствии
D Konformitäts-
erklärung
Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht,
mit den nachstehenden Normen übereinstimmt.
GB Declaration of
conformity
We hereby declare that the product to which this declaration refers conforms
with the following standards.
CZ Prohlášení o
shode
Tímto prohlašujeme, že výrobek, kterého se toto prohlášení týká, je v souladu
s níže uvedenými normami.
E Declaración de
conformidad
Manifestamos en la presente que el producto al que se refiere esta
declaración está de acuerdo con las normas siguientes
F Déclaration de
conformité
Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la
présente déclaration, est conforme aux normes citées ci-après.
I Dichiarazione di
conformitá
Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si
riferisce è conforme alle norme di seguito citate.
NL Conformiteit-
verklaring
Wij verklaren hiermede dat het product, waarop deze verklaring betrekking
heeft, met de hierna vermelde normen overeenstemt.
P Declaração de
conformidade
Declaramos por meio da presente que o produto no qual se refere esta
declaração, corresponde às normas seguintes.
PL Deklaracja
zgodności
Niniejszym oświadczamy, że produkt, którego niniejsze oświadczenie
dotyczy, jest zgodny z poniższymi normami.
RUS Заявление о
соответствии
Мы заявляем, что продукт, ккоторому относится данная декларация,
соответствует перечисленным ниже нормам.
Electronic Balance: KERN ABS/ABJ
Mark applied EU Directive Standards
2004/108/EC EN 55022: 2006 (Class B)
EN 55024: 1998/A1: 2001/A2: 2003
EN 61000-3-2: 2006
EN 61000-3-3: 1995/A1: 2001/A2: 2005
2006/95/EC EN 60950: 2001
Date: 25.05.2009 Signature:
Gottl. KERN & Sohn GmbH
Management
Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0,Fax +49-[0]7433/9933-149

ABS/ABJ-BA-e-1019
16
Calibration information (Kern ABJ only)
A security mark must be attached in compliance with the following drawing.
Type plate
Security mark
Important type plate information:
There is a counter on the type plate that counts upwards if the internal adjustment
weight is re-adjusted using service mode. This counter is indicated as follows:
“Log. No. A01”.The display indicates the number A01 after the balance has been
connected to the power supply. If the internal adjustment weight has been adjusted
using the service mode, this counter would count upwards and A02 would appear after
the balance is connected to the power supply. This would invalidate any calibration in
calibrated condition.
The counter on the type plate and the number indicated on the display must coincide
after the balance is connected to the power supply!
If these numbers do not coincide, calibration is not valid.

ABS/ABJ-BA-e-1019 17
4 Operating menu of the balance
The operating menu of the balance can be used to set up the balance to meet your
specific needs. The operating menu is normally set up during manufacture and does not
require any modifications. Nevertheless, the balance can be customised for special
applications through the operating menu.
4.1 Modifying the settings
To change certain settings, select the respective functions.
A function can be modified by the following three steps:
- Menu call
- Function setting
- Confirm and store
To adjust a function, the ON/OFF/ESC,CAL/MENU and
TARE/ - key are equipped with special functions.
4.2 Setting modifications
CAL/MENU = Menu selection and menu option processing
from top down (↓).
TARE/ = Select function.
Once the display function has been selected with the
CAL/MENU key, perform a call by using the TARE/ -key
for the modification.
CAL/MENU = Select one of the possible function settings.
Processing of menu options from top down.
TARE/ = Confirmation and storage of setting with
TARE/ - key of current display.
The standby indicator will indicate the setting for the
current function.
ON/OFF/ESC = Exit from function
Press the ON/OFF/ESC key function briefly
to return to previous menu.
Press the ON/OFF/ESC key function for longer
to return to weighing mode.

ABS/ABJ-BA-e-1019
18
4.3 Menu call
Perform the modification test once. Change the “Auto-Zero“
function to OFF and then to ON.
- Turn the balance on by using the ON/OFF/ESC key.
- Press the CAL/MENU key until FUnC.SEL appears.
- Press the TARE/ -key only once until CAL appears.
- Press the CAL/MENU key once until trC :on appears.
- Press the TARE/ - key once.
The “Auto-Zero“ function is selected.
The standby indicatorindicates the setting of the
current display.
- Press the CAL/MENU key.
This means:
trC :oF Auto-Zero is off.
trC :on Auto-Zero is on
Select trC :oF
- Press the TARE/ key once.
A colon appears when the change is stored.
- Press the ON/OFF/ESC key.
To exit the menu, press the ON/OFF/ESC key at least
2 sec.
Note:
If you wish to store several settings simultaneously on the
operating menu, you do not need to exit the menu each
time. Several settings can be set up before exiting the
menu.

ABS/ABJ-BA-e-1019 19
4.4 Operating menu summary
4.4.1 Selection of main menu
Balance display 0.0000
eCAL Balance settings. For more options, see the chapter on “Selecting the adjustment
type“.
St.b1t Display of current settings St Standard mode
SA Sample mode
Hi High Stability Modus
b1 Standby range 0,1 mg
b2 0,5 mg
b10 1,0 mg
trC-on AutoZero ON
trC-of1 Auto Zero OFF
t (displayed)
t (not displayed)
Stnd Standard weighing mode
SAmPLE Sample mode
Hi-Stb High stability mode
FUnC.SEL Function menu. See Chapter 4.4.2, “Menu indicator for FUnc.SEL menu option“
SEttinG Function menu. See Chapter 4.4.4 “ Menu indicator for “SettinG“
intFACE Function menu. See Chapter 4.4.5 “ Menu indicator for “intFACE“
Balance display 0.0000

ABS/ABJ-BA-e-1019
20
4.4.2 Menu indicator for FUnC.SEL menu option
FUnC.SEL CAL E CAL Adjustment with external weight
E tESt Adjustment check
I CAL Adjustment with internal weight (ABS only)
I tESt Adjustment check internal weight (ABJ only)
trC:on trC-on Auto-Zero ON
trC-oF Auto-Zero OFF
bAnd:1 b-1 Standby range, 1 = extremely quiet environment
(0.1 mg)
b-5 Standby range, 5 = quiet environment,
(0.5 mg)
b-10 Standby range, 10 = non-quiet environment,
(1.0 mg)
Unit.SEL Access to three menu levels (Unit Selection Mode),
See Chapter 4.4.3, “Unit.SEL" menu option
AtPrt:on Ad-on Auto PRINT ON
AP-oF Auto PRINTOFF
AdiSP:on Ad-on ON capacity indicator
Ad-oF OFF capacity indicator
Addon:on Adon-on Not documented
Adon-oF Not ducumented