KERN-SOHN ABP 100-5M, ABP 200-5M Instructions

KERN & Sohn GmbH
Ziegelei 1
E-Mail: info@kern-sohn.com
Internet: www.kern-sohn.com
Operating manual Analytical balance
KERN TABP
Version 1.1
2021-06
GB
D-72336 Balingen
Fax: +49-[0]7433-9933-149
TABP-BA-e-2111
GB
KERN TABP
Analytical balance
Version 1.1 2021-06
Operating manual
Contents
1 Technical data ................................................................................................ 5
2 Declaration of conformity ............................................................................. 8
3 Appliance overview ....................................................................................... 9
3.1 Components .............................................................................................................................. 9
3.2 Keyboard ................................................................................................................................. 11
3.2.1 Numeric entry ........................................................................................................................... 12
3.3 Display ..................................................................................................................................... 13
4 Basic Information (Gen eral) ........................................................................ 16
4.1 Proper use ............................................................................................................................... 16
4.2 Improper Use .......................................................................................................................... 16
4.3 Warranty .................................................................................................................................. 16
4.4 Monitoring of Test Resources ............................................................................................... 17
5 Basic Safety Precauti o ns ............................................................................ 17
5.1 Pay attention to the instructions in the Operation Manual ................................................ 17
5.2 Personnel training .................................................................................................................. 17
6 Transport and storage ................................................................................. 17
6.1 Testing upon acceptance ...................................................................................................... 17
6.2 Packaging / return transport ................................................................................................. 18
7 Unpacking, Setup and Commissioning ..................................................... 20
7.1 Installation Site, Location of Use .......................................................................................... 20
7.2 Unpacking and checking ....................................................................................................... 20
7.2.1 Placing ...................................................................................................................................... 22
7.3 Mains connection ................................................................................................................... 25
7.3.1 Turning On the Power .............................................................................................................. 26
7.4 Initial Commissioning ............................................................................................................ 26
7.5 Connection of peripheral devices ......................................................................................... 27
8 Adjustment ................................................................................................... 27
8.1 Automatic adjustment via PSC function .............................................................................. 27
8.2 Time-controlled automatic adjustment ................................................................................ 29
8.3 Manual adjustment via key [CAL-key] .................................................................................. 30
8.3.1 Setting adjustment function for CAL-key .................................................................................. 30
8.3.2 Adjustment with internal weight ................................................................................................ 30
8.3.3 Adjustment test with internal weight ......................................................................................... 31
8.3.4 Adjustment with external weight ............................................................................................... 31
8.3.5 Adjustment test with external weight ........................................................................................ 32
8.4 Adjustment log ....................................................................................................................... 33
8.5 Regular inspections ............................................................................................................... 34
9 Verification ................................................................................................... 36
10 Basic Operation ........................................................................................... 38
10.1 Activate standard weighing mode ........................................................................................ 38
10.2 Simple weighing ..................................................................................................................... 38
10.3 Taring ....................................................................................................................................... 39
10.4 Underfloor weighing ............................................................................................................... 40
10.5 Switch off the balance............................................................................................................ 41
10.6 Switch-over weighing unit ..................................................................................................... 41
2 TABP-BA-e-2111
10.7 Change readability (1D/10D) (not available for verified models) ....................................... 41
10.8 Display Tare / Net / Gross ...................................................................................................... 42
10.9 Display decimal dot as point or comma............................................................................... 43
11 Menu ............................................................................................................. 44
11.1 Navigation in the menu .......................................................................................................... 44
11.1.1 Standard weighing mode ..................................................................................................... 45
11.1.2 Weighing settings ................................................................................................................. 46
11.1.3 System Settings ................................................................................................................... 48
11.1.4 Application settings .............................................................................................................. 50
11.2 Menu overview ........................................................................................................................ 50
11.3 Resetting the menu ................................................................................................................ 51
11.4 Menu Lock ............................................................................................................................... 52
11.5 Log menu settings .................................................................................................................. 53
11.6 Menu history ........................................................................................................................... 54
12 Description of individual functions ............................................................ 55
12.1 Zero setting and tare function ............................................................................................... 55
12.2 Zero tracking function............................................................................................................ 55
12.3 Auto Tare function .................................................................................................................. 56
12.4 Settings for Stability and Response ..................................................................................... 57
12.4.1 Stability and reaction settings via „Smart Setting display“ (without invoking menu) ............ 57
12.5 Dosing...................................................................................................................................... 58
12.5.1 Standstill wid t h ..................................................................................................................... 59
12.6 Weighing Units ....................................................................................................................... 60
12.7 User administration log-in function ...................................................................................... 60
13 Balance settings .......................................................................................... 67
13.1 Screen saver ........................................................................................................................... 67
13.2 Display settings in operating mode ...................................................................................... 67
13.3 Balance identification no. ...................................................................................................... 68
13.4 Entering date and time ........................................................................................................... 68
13.5 Date format .............................................................................................................................. 68
13.6 Brightness of display ............................................................................................................. 69
13.7 Audio signal on pressing key or display of stability .......................................................... 69
13.8 User language ......................................................................................................................... 69
14 Application Functions ................................................................................. 70
14.1 Parts counting ........................................................................................................................ 71
14.1.1 Settings ................................................................................................................................ 71
14.1.2 Setting the display ................................................................................................................ 73
14.1.3 Part counting ........................................................................................................................ 73
14.1.4 Change settings ................................................................................................................... 74
14.1.5 Switching between counting and weighing mode ................................................................ 74
14.2 Percent determination............................................................................................................ 75
14.2.1 Settings ................................................................................................................................ 75
14.2.2 Setting the display ................................................................................................................ 77
14.2.3 Performing calculation of percentage .................................................................................. 78
14.2.4 Change settings ................................................................................................................... 78
14.2.5 Switching between percentage and weighing mode ............................................................ 79
14.3 Determining the density of solid matter and fluids ............................................................ 79
14.4 Totalization .............................................................................................................................. 80
14.5 Formulation ............................................................................................................................. 83
14.5.1 Free formulating ................................................................................................................... 83
14.5.2 Define and process formulations ......................................................................................... 86
14.5.3 Change recipe ...................................................................................................................... 90
14.5.4 Sample log (KERN YKB-01N): ............................................................................................. 91
14.6 Preparing buffer solutions..................................................................................................... 92
14.7 Sample preparation ................................................................................................................ 95
14.7.1 Changing saved samples ..................................................................................................... 97
14.8 Statistics .................................................................................................................................. 98
14.9 Control weighing and target weighing ............................................................................... 100
14.9.1 Target weighing .................................................................................................................. 100
TABP-BA-e-2111 3
14.10 Control weighing (Pass / Fail evaluation) ...................................................................... 102
14.11 Minimum sample weight .................................................................................................. 104
15 Interfaces .................................................................................................... 105
15.1 Connect printer ..................................................................................................................... 105
15.2 Connect PC ........................................................................................................................... 105
15.3 Connect serial devices / connect programmable controller (SPS / PLC) ....................... 106
15.4 Interface cable (RS232) ........................................................................................................ 106
15.5 Data transmission format .................................................................................................... 107
15.6 Interface commands............................................................................................................. 108
15.7 Communication parameters ................................................................................................ 112
15.7.1 Select standard setting ....................................................................................................... 112
15.7.2 User defined settings (display example for KERN YKB-01N ............................................. 113
15.8 Issue functions ..................................................................................................................... 115
15.8.1 Automatic data output / Auto Print function ........................................................................ 115
15.8.2 Continuous data output ...................................................................................................... 116
15.8.3 GLP Output Function ......................................................................................................... 118
15.8.4 Defining output details ........................................................................................................ 119
15.10 USB connection ............................................................................................................... 120
15.10.1 Edit weighing data, adjustment logs and screenshots to USB medium ............................ 121
15.10.2 Data transfer by means of barcode reader ........................................................................ 124
16 Servicing, maintenance, disposal ............................................................ 125
16.1 Cleaning ................................................................................................................................ 125
16.2 Servicing, maintenance ....................................................................................................... 126
16.3 Disposal ................................................................................................................................. 127
17 Instant help ................................................................................................. 127
18 Ionizer (factory option) .............................................................................. 128
18.1 General .................................................................................................................................. 128
18.2 Basic Safety Precautions .................................................................................................... 128
18.3 Technical Data ...................................................................................................................... 130
18.4 Commissioning ..................................................................................................................... 130
18.5 Maintenance and cleaning ................................................................................................... 132
4 TABP-BA-e-2111

1 Technical data

KERN ABP 100-4M ABP 100-5DM ABP 100-5M
Item no./ Type TABP 100-4M-A TABP 100-5DM-A TABP 135-5M-A Readability (d) 0.0001 g 0.00001 g / 0.0001 g 0,00001 g Weighing range (max) 120 g 52 g / 120 g 135 g Minimum load (Min) 0.01 g 0.001 g 0,001 g Verification value (e) 0.001 g 0.001 g 0,001 g Verification class I I I Reproducibility 0.0001 g 0.00002 g / 0.0001 g 0,00005 g
Linearity ± 0.0002 g
Stabilization time 2 s 2 s / 8 s 8 s Adjustment weight internal
Warm-up time 8 h Weighing Units mg, g, ct (unverified)
Smallest component weight for part counting
Reference quantities at piece counting
Weighing plate, stainless steel ø 91mm Dimensions caisse
(l x L x h) [mm] Dimensions
Glass wind screen [mm] Net weight (kg) 7 8 7,9
212 x 367 x 345 212 x 411 x 345 213 x 433 x 344
10 mg (under normal conditions**)
170 x 165 x 220 mm (weighing space)
± 0.00005 g / 0.0002
g
g, ct (verified)
1mg (under lab conditions*)
1 - 100
± 0,0002 g
Permissible ambient condition
Humidity of air 20 ~ 85 % relative (not condensing) Power pack
Input voltage
Weighing scales Input voltage
Degree of pollution 2 Overvoltage category Category II Metres in height Up to 2000 m Place of installation In sealed rooms only Interfaces RS-232, USB (type B, PC connection), USB host (type A)
AC 100 -240 V, 300 mA 50/60Hz
AC 100 -240 V, 320 – 190 mA 50/60Hz
+10° C to +30° C
or
DC 12 V, 1,0 A
TABP-BA-e-2111 5
KERN ABP 200-4M ABP 200-5DM ABP 220-5M-A
Item no./ Type TABP 200-4M-A TABP 200-5DM-A TABP 220-5M-A Readability (d) 0.0001 g 0.00 001 g / 0.0001 g 0,0001 g Weighing range (max) 220 g 102 g / 220 g 220 g Minimum load (Min) 0.01 g 0.001 g 0,02 g Verification value (e) 0.001 g 0.001 g 0,001 g Verification class I I I Reproducibility 0.0001 g 0.00005 g / 0.0001 g 0,00015 g
Linearity ± 0.0002 g ± 0.0001 g / 0.0002 g ± 0,0002 g
Stabilization time 2 s 2 s / 8 s 8 s Adjustment weight internal
Warm-up time 8 h Weighing Units mg, g, ct (unverified)
g, ct (verified)
1mg (under lab conditions*)
Smallest component weight for part counting
10 mg (under normal conditions**)
Reference quantities at piece counting
Weighing plate, stainless steel ø 91mm Dimensions caisse
(l x L x h) [mm] Dimensions
Glass wind screen [mm] Net weight (kg) 7 8 7,9 Permissible
ambient condition Humidity of air 20 ~ 85 % relative (not condensing) Power pack
Input voltage
Weighing scales Input voltage
Degree of pollution 2 Overvoltage category Category II Metres in height Up to 2000 m
212 x 367 x 345 212 x 411 x 345 213 x 433 x 344
170 x 165 x 220 mm (weighing space)
AC 100 -240 V, 300 mA 50/60Hz
AC 100 -240 V, 320 – 190 mA 50/60Hz
1 - 100
+10° C to +30° C
or
DC 12 V, 1,0 A
Place of installation In sealed rooms only Interfaces RS-232, USB (type B, PC connection), USB host (type A)
6 TABP-BA-e-2111
KERN ABP 300-4M
Item no./ Type TABP 300-4M-A Readability (d) 0.0001 g Weighing range (max) 320 g Minimum load (Min) 0.01 g Verification value (e) 0.001 g Verification class I Reproducibility 0.00015 g
Linearity ± 0.0003 g
Stabilization time 2 s Adjustment weight internal
Warm-up time 8 h Weighing Units mg, g, ct (unverified)
g, ct (verified)
1mg (under lab conditions*)
Smallest component weight for part counting
Reference quantities at piece counting
Weighing plate, stainless steel ø 91mm Dimensions caisse
(l x L x h) [mm] Dimensions
Glass wind screen [mm] Net weight (kg) 7 Permissible
ambient condition Humidity of air 20 ~ 85 % relative (not condensing) Power pack
Input voltage
Weighing scales Input voltage
10 mg (under normal conditions**)
1 - 100
212 x 367 x 345
170 x 165 x 220 mm (weighing space)
+10° C to +30° C
AC 100 -240 V, 300 mA 50/60Hz
or
AC 100 -240 V, 320 – 190 mA 50/60Hz
DC 12 V, 1,0 A
Degree of pollution 2 Overvoltage category Category II Metres in height Up to 2000 m Place of installation In sealed rooms only Interfaces RS-232, USB (type B, PC connection), USB host (type A)
TABP-BA-e-2111 7
For verified weighing scales (= weighing scales assessed for conformity) a declaration of conformity is included in the scope of
* Smallest component weight for part counting - under lab conditions:
There are ideal ambient conditions for high-resolution counting The parts to be counted are not scattered
** Smallest component part for part counting – under normal conditions:
There are unsteady ambient conditions (draft, vibrations) The parts to be counted are being scattered

2 Declaration of conform ity

The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce
delivery.
8 TABP-BA-e-2111

3 Appliance overview

3.1 Components

Models d = 0.0001 g Mode. d = 0.00001 g/0.0001 g
Pos. Description
1 Keyboard 2 Bubble level 3 Display 4 Windshield 5 Weighing pan 6 Fastening point ionizer (optional) 7 Glass wind screen 8 USB host port 9 Levelling screw
TABP-BA-e-2111 9
Rear view:
Models d = 0.0001 g Models d = 0.00001 g/0.0001 g
Pos. Description
10 Serial interface (RS232) 11 USB device 12 Port for ionizer 13 Connector for AC adapter 14 Fastening point for anti-theft devi c e 16 Fastening lug for anti-theft chain or wire 17 Port for power pack 18 External electronics box
10 TABP-BA-e-2111

3.2 Keyboard

Function
Short key pressing
Long key pressing
In menu
Call up menu
Call Statistics
Call Setup Menu
(Factory option)
Button Description
Switching between
[ON/OFF]
[1d/10d]
operating and standby mode
Readability change
-
Return to weighing mode
[CAL]
Start adjustment
Call setup menu "Adjustment"
-
Data output to
[PRINT]
[TARE]
external device (weighing mode)
Taring Zeroing
Call setup menu "Print"
Call setup "Zero Setting / Taring"
[MENU]
Call application specific settings
TABP-BA-e-2111 11
[Ionizer]
[OK] - -
Ionizer on/off (Factory option)
Ionizer
Confirm
input
[R]
weight
Button
Description
Function
Navigation button
Change reaction setting for display
Select menu item.
[UNIT]
Navigation button
[F]
Navigation button
[S]
Navigation button

3.2.1 Numeric entry

Weighing mode: Switch-over weighing unit. Counting mode: Display single weight Calculate percentage: Display reference
Switch over weighing mode / application mode
Change stability setting of display
Call setup menu "Units"
Scroll forward in menu
Scroll backwards in menu
Select menu item.
Navigation button
Navigation button
Navigation button
Navigation button
Navigation button
Flashing digit (0 – 9) or increase character (, [blank], -, A – Z)
Flashing digit (0 – 9) or reduce character (, [blank], -, A – Z)
Digit selection to the right
Digit selection to the left
Confirm entry
ESC Cancel input
12 TABP-BA-e-2111

3.3 Display

No.
Data output to external devices
USB-storage medium is connected
Menu Lock
Display of weighing result in current weighing unit
Stability display
Net weight
Tare weight
Gross weight
Hold function enabled
Zero indicator
Negative weighed value
Net weight during formulating
Apart from the display of the weighing result, all functions of the menu may be accessed from here. The display will vary, depending on the weighing scale being either in operating or setting mode. Special keys (e.g. CAL-, TARE-, PRINT-key) provide fast and purposeful access to the individual setup menu. The navigation keys allow intuitive control.
Display example operating mode:
The display is sub-divided into four areas.
Status Description
1 Operating
mode
2 User field Display of logged-in user and current time
3 Measuring
Value
Current application
Tolerance marker Capacity display The non-verified value is given in
brackets in verified scales.
TABP-BA-e-2111 13
4
Status display
Current settings
Minimum initial weight
Settings for Stabilit y and Respons e
Printer settings
Auto Print function active
Flashing during automatic Output
continuous output ena bl ed
Flashing during continuous Output
Weighing settings
Dispensing mode
Zero tracking (Autom. zero point correction)
Statistics
Error reports
Adjustment required (PSC-function)
Inadequate power supply
Defective USB-connection
Display example setting mode:
After pressing the MENU-key in weighing mode the display will change to setting mode.
14 TABP-BA-e-2111
Example of illustration: For calling system settings see chap. 11.1.3
Symbol Description Application icons
The icon for the
Level 1
Selecting an application
Weighing mode Parts counting Percent determination Density determinatio n < Sol i d matter> Density determinatio n < F l uids >
application selected will be shown
Totalization Formulation Autom. Processing a recipe Produce a buffer solution
Produce an analysis sample
Symbol Description Application icons
Icon of selected
Level 2
application
Available settings will be shown on level 1.
Level 1
Level 1
Level 1
Weighing settings
System Settings
History
Dosing Zero tracking System Settings Settings <Print> Settings <Save data> Settings <Communication> Settings <Adjustment>
Settings <User>
The last 10 menu steps will be displayed.
For further information about the operati on o f the di s play, see chap. 11.1
TABP-BA-e-2111 15

4 Basic Information (General)

4.1 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.

4.2 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 faul ts and des tr uct ion 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.

4.3 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
16 TABP-BA-e-2111

4.4 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.

5 Basic Safety Precautions

5.1 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.
All language versions contain a non-binding translation.
The original German is binding.

5.2 Personnel training

The appliance may only be operated and maintained by trained personnel.

6 T ransport and storage

6.1 Testing upon acceptance

When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage.
TABP-BA-e-2111 17

6.2 Packaging / return transpor t

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.
Illustration example models d = 0.0001 g
Reattach possibly supplied transport securing devices. Secure all parts such as the glass wind screen, the
weighing platform, power unit etc. against shifting and damage.
Put network adapter and accessories in the small box
Lift scale with both hands
18 TABP-BA-e-2111
TABP-BA-e-2111 19

7 Unpacking, Setup and Commi s si oning

7.1 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 (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 weighed items 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.

7.2 Unpacking and checking

Remove device and accessories carefully from packaging, remove packaging material and place device at the planned work place. Check if that there has been no damage and that all packing items are present.
20 TABP-BA-e-2111
Scope of delivery / serial accessories
Models d = 0.00001 g/0.0001 g only:
Pos. Description
1 Balance 2 Weighing pan 3 Carrier weighing pan 4 Centring ring (Models d = 0.0001 g only) 5 Protective cover 6 Mains adapter 7 Holder for adapter cable (Models d = 0.0001 g only) 8 Operating manual
9 External electronics box 10 Guard plate 11 Windshield 12 Multi-function weighing platform 13 Support multi-function weighing platform
TABP-BA-e-2111 21

7.2.1 Placing

Pull off protective film and attach as shown on image.
Attach centering ring, carrier of weighing plate and weighing plate in order.
Attach the safety hood
The right place is decisive for the accuracy of the weighing results of high­resolution precision balances (see chap. 7.1).
1. Attach holder for adapter cable (Models d = 0.0001 g only)
2. Installation of weighing plate
Models d = 0.0001 g
22 TABP-BA-e-2111
Mode. d = 0.00001 g/0.0001 g
Attach centering ring, carrier of weighing plate and weighing plate in order. Attach the safety hood
Place the guard plate carefully in the weighing chamber
TABP-BA-e-2111 23
3. Install the multi-function weighing platform (Model s = 0.00001 g/0.0001 g only)
Disconnect scale from pow er
supply.
Remove standard weighing plate as
shown on image.
Application examples:
Adjustment will be required after exchanging the weighing platform, for instructions see chap. 8
Install multi-function weighing
platform together with the support. Pay due attention to centring!
Standard weighing platform Support multi-function weighing platfor m
24 TABP-BA-e-2111
4. Levelling
Level balance with foot screws until the air bubble of the water balance is in the
prescribed circle.
Check levelling regularly
Check, whether the voltage acceptance on the scales is set correctly. Do not connect the scales to the power mains unless the information on
consent by KERN.

7.3 Mains connection

TABP-BA-e-2111 25
Select a country-specific power plug and insert it in the mains adapter.
the scales (sticker) matches the local mains voltage. Only use KERN original mains adapter. Using other makes requires
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 mains plug at all times.

7.3.1 Turning O n the Power

Models d = 0.0001 g Mode. d = 0.00001 g/0.0001 g
Supply power to balance via mains adapter. The display lig hts up and the balance carries out a selftest. Internal adjustment will be started automatically (See chap.8.3.2). The motor noise of the loading system for the inter nal adjustment weight will be audible.
You can cancel the adjustment by pressing the ON/OFF key.
The selftest is completed when „OFF“ appears on the display. From that point onwards the weighing scale will be in standby mode. The weighing balance will remain switched on as long as it is connected to the power supply.
To turn the display on/off, press the ON/OFF key.
When the log-in function is enabled, use the navigation keys to select the respective user and enter password, see chap. 12.7

7.4 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.
26 TABP-BA-e-2111

7.5 Connection of peripheral devices

Observe stable environmental conditions. A warming up time
When an optional printer is connected and the GLP function is connected,
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.

8 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.
(see chapter 1) is required for stabilization.
Ensure that there are no objects on the weighing pan.
Avoid vibration and air flow.
Always carry out adjustment with the standard weighing platform in place.
To cancel internal adjustment, press the ON/OFF key.
the adjustment log will be edited, see chap. 8.4

8.1 Automatic adjustment via PSC func ti on

Force-compensated scales react sensitively to changes in temperature. The higher the sensitivity of the scale, the more pronounc ed the e ffec t. The te mper at ure controlled PSC function enables the scale to automatically correct this effect.
PSC stands for Perfect Self Calibration and facilitates fully automatic internal scale adjustment by means of an internal weight, based on time and/or temperature criteria. Adjustment in weighing mode is carried out automatically under the following conditions:
(1) If there is a change in ambient temperature (t 1°C) (2) When about four hours has passed since the previous calibration.
(3) When the balance is switched from standby status to weighing mode
and condition (1) or (2) has been met.
TABP-BA-e-2111 27
If one of the above conditions was met in
starts flashing while the weighing platform is
weighing mode, the weight symbol flashes for about two minutes in order to notify the pending adjustment; During operation, the display will automatically change and the motor sound of the weight loading system is heard. In order to ensur e proper PSC operation, prevent vibrations and air flow.
The PSC function is always active and cannot be disabled.
Also, no measurements can be made duri ng auto ma ti c adj ust ment.
When the weight symbol
loaded the following message will appear
Unload weighing plate
In order to prevent that adjustment is starting during a measuring
sequence, press the ON/OFF key immediately when the following display appears. This will cancel the adjustment and you can proceed with the measuring sequence. Sometime later adjustment will be requested again by the flashing weight
symbol .
28 TABP-BA-e-2111

8.2 Time-c ontrol led automatic adjustment

With the help of its internal adjusting weight and integrated clock the balance can be set to carry out automatic adjustment at set times (up to three times daily). This function is a very convenient function, when adjustment reports are desired to be made for regular adjustments, or when wishing span adjustments during break times to avoid interruption of measurement work.
The weight symbol blinks for about two minutes as notification of span calibration before it begins. Automatic adjustment can be stopped by actuating the [ON/OFF] key during this message.
Parameter setting:
Press and hold the CAL-key for approx. 3 sec. and the menu for <CAL key> setting will be displayed.
Use the navigation keys to select <Timer CAL> and confirm using the OK-key.
Select first time <Timer 1> and confirm using the OK-key.
Select setting [on] or [off] and confirm using the OK-key.
Select [Setting] to enter time.
Use the navigation keys to enter time and confirm using the OK-key.
Repeat these operatin g steps to set the time for <Timer 2> / <Timer 3>.
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8.3 Manual adjustment via key [CAL-key]

Select Settings with the help of the navigation

8.3.1 Setting adjustment function for CAL-key

It is possible to start the preset adjustment method without having to access the menu. The Set Adjustment Procedure may be set by simply pressing the [CAL]-key when in weighing mode.
Press and hold the CAL-key for approx. 3 sec until the <CAL key> setting menu appears.
Confirm using the OK-key and the available settings will be displayed.
Adjustment with internal weight, see chap. 8.3.2  For adjustment test using internal weight,
see chap. 8.3.3
Adjustment using external weig ht, see chap. 8.3.4  Adjustment test with external weight,
see chap. 8.3.5
keys and confirm using the OK-key.
Use the ON/OFF button to return into weighing mode

8.3.2 Adjustment with internal weight

Ensure that the CAL-key is assigned to the <Internal Weight Calibration> function, see chap. 8.3.1.
Press CAL key, adjustment is started.
After successful adjustment the balance automatically returns to weighing mode.
In case of an adjustment error (e.g. objects on the weighing plate) the display will show an error message, repeat adjus t me nt.
30 TABP-BA-e-2111
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