KERN&SOHN ABP User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [email protected]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Analytical balance
KERN ABP / ABP-A
Version 1.2
2022-06
EN
TABP-BA-e-2212

TABP-BA-e-2212 2
EN
KERN ABP
Version 1.2 2022-06
Operating instructions
Analytical balance
Contents
1Technical data................................................................................................ 5
2Declaration of conformity ........................................................................... 10
3Appliance overview ..................................................................................... 11
3.1 Components............................................................................................................................ 11
3.2 Keyboard ................................................................................................................................. 13
3.2.1 Numeric entry ........................................................................................................................... 15
3.3 Display..................................................................................................................................... 16
4Basic Information (General)........................................................................ 19
4.1 Proper use............................................................................................................................... 19
4.2 Improper Use .......................................................................................................................... 19
4.3 Warranty .................................................................................................................................. 19
4.4 Monitoring of Test Resources............................................................................................... 20
5Basic Safety Precautions ............................................................................ 20
5.1 Pay attention to the instructions in the Operation Manual ................................................ 20
5.2 Personnel training .................................................................................................................. 20
6Transport and storage................................................................................. 20
6.1 Testing upon acceptance ...................................................................................................... 20
6.2 Packaging / return transport ................................................................................................. 21
7Unpacking, Installation and Commissioning............................................. 23
7.1 Installation Site, Location of Use .......................................................................................... 23
7.2 Unpacking and checking ....................................................................................................... 23
7.3 Placing..................................................................................................................................... 26
7.3.1 Installing the glass windshield doors (only ABP-A series) ....................................................... 26
7.3.2 Assembly of the internal windshield ......................................................................................... 27
7.3.3 Connection of the ionizer.......................................................................................................... 27
7.3.4 Installation of weighing plate .................................................................................................... 28
7.4 Mains connection ................................................................................................................... 31
7.4.1 Turning On the Power .............................................................................................................. 32
7.5 Initial Commissioning ............................................................................................................ 32
7.6 Connection of peripheral devices......................................................................................... 33
8Adjustment ................................................................................................... 33
8.1 Automatic adjustment via PSC function .............................................................................. 34
8.2 Time-controlled automatic adjustment ................................................................................ 36
8.3 Manual adjustment via key [CAL-key].................................................................................. 37
8.3.1 Setting adjustment function for CAL-key .................................................................................. 37
8.3.2 Adjustment with internal weight ................................................................................................ 37
8.3.3 Adjustment test with internal weight ......................................................................................... 38
8.3.4 Adjustment with external weight............................................................................................... 38
8.3.5 Adjustment test with external weight ........................................................................................ 39
8.4 Adjustment log ....................................................................................................................... 39
8.5 Regular inspections ............................................................................................................... 40
9Verification ................................................................................................... 42
10 Basic Operation ........................................................................................... 44

3 TABP-BA-e-2212
10.1 Activate standard weighing mode ........................................................................................ 44
10.2 Simple weighing ..................................................................................................................... 44
10.3 Taring....................................................................................................................................... 45
10.4 Functions of the ABP-A series (Standard weighing mode) ............................................... 46
10.4.1 Measuring with the automatic door function (Position memory function) ........................... 46
10.4.2 Measuring with the IR sensor (touchless function) .............................................................. 47
10.5 Adjustable windshield plate (only at ABP-A Half-Micro-Models) ...................................... 48
10.6 Underfloor weighing............................................................................................................... 49
10.7 Switch off the balance............................................................................................................ 50
10.8 Switch-over weighing unit..................................................................................................... 50
10.9 Change readability (1D/10D) (not available for verified models) ....................................... 50
10.10 Display Tare / Net / Gross.................................................................................................. 51
10.11 Display decimal dot as point or comma .......................................................................... 52
11 Menu ............................................................................................................. 53
11.1 Navigation in the menu .......................................................................................................... 53
11.1.1 Standard weighing mode ..................................................................................................... 54
11.1.2 Weighing settings ................................................................................................................. 55
11.1.3 System Settings ................................................................................................................... 57
11.1.4 Application settings .............................................................................................................. 59
11.2 Menu overview........................................................................................................................ 59
11.3 Resetting the menu ................................................................................................................ 60
11.4 Menu Lock............................................................................................................................... 61
11.5 Log menu settings.................................................................................................................. 62
11.6 Menu history ........................................................................................................................... 63
12 Description of individual functions ............................................................ 64
12.1 Zero setting and tare function............................................................................................... 64
12.2 Zero tracking........................................................................................................................... 64
12.3 Auto Tare function.................................................................................................................. 65
12.4 Settings for Stability and Response ..................................................................................... 66
12.4.1 Stability and reaction settings via „Smart Setting display“ (without invoking menu) ............ 66
12.5 Dosing...................................................................................................................................... 67
12.6 Standstill width ....................................................................................................................... 68
12.7 Weighing Units ....................................................................................................................... 69
12.8 User administration log-in function...................................................................................... 69
13 Balance settings .......................................................................................... 76
13.1 Screen saver ........................................................................................................................... 76
13.2 Display settings in operating mode...................................................................................... 77
13.3 Balance identification no. ...................................................................................................... 77
13.4 Entering date and time........................................................................................................... 77
13.5 Date format.............................................................................................................................. 78
13.6 Brightness of display ............................................................................................................. 78
13.7 Acoustic signal on pressing key and display of stability .................................................. 79
13.8 User language......................................................................................................................... 79
13.9 Configuration of the manual door opener (only ABP-A series)......................................... 79
13.10 Configuration methods of the IR sensors (only ABP-A series) .................................... 80
13.10.1 Switch-over the operating mode of the IR sensors .............................................................. 81
14 Application Functions ................................................................................. 85
14.1 Piece counting ........................................................................................................................ 86
14.1.1 Settings ................................................................................................................................ 86
14.1.2 Setting the display................................................................................................................ 88
14.1.3 Parts counting ...................................................................................................................... 88
14.1.4 Change settings ................................................................................................................... 89
14.1.5 Switching between counting and weighing mode ................................................................ 89
14.2 Percent determination............................................................................................................ 90
14.2.1 Settings ................................................................................................................................ 90
14.2.2 Setting the display................................................................................................................ 92
14.2.3 Performing calculation of percentage .................................................................................. 93
14.2.4 Change settings ................................................................................................................... 93

TABP-BA-e-2212 4
14.2.5 Switching between percentage and weighing mode............................................................ 94
14.3 Determining the density of solid matter and fluids ............................................................ 94
14.4 Totalization.............................................................................................................................. 95
14.5 Recipe composition ............................................................................................................... 98
14.5.1 Free recipe composition....................................................................................................... 98
14.5.2 Define and process recipes................................................................................................ 101
14.5.3 Change recipe .................................................................................................................... 105
14.5.4 Sample log (KERN YKB-01N):........................................................................................... 106
14.6 Preparing buffer solutions................................................................................................... 107
14.7 Sample preparation .............................................................................................................. 110
14.7.1 Changing saved samples................................................................................................... 112
14.8 Statistics................................................................................................................................ 113
14.9 Control weighing and target weighing ............................................................................... 115
14.9.1 Target weighing.................................................................................................................. 115
14.9.2 Control weighing (Pass / Fail evaluation)........................................................................... 117
14.10 Minimum sample weight.................................................................................................. 119
15 Interfaces.................................................................................................... 120
15.1 Connect printer..................................................................................................................... 120
15.2 Connect PC ........................................................................................................................... 120
15.3 Connect serial devices / connect programmable controller (SPS / PLC) ....................... 121
15.4 Interface cable (RS232) ........................................................................................................ 121
15.5 Data transmission format .................................................................................................... 122
15.6 Interface commands............................................................................................................. 123
15.7 Communication parameters ................................................................................................ 128
15.7.1 Select standard setting....................................................................................................... 128
15.7.2 User defined settings (display example for KERN YKB-01N............................................. 129
15.8 Issue functions ..................................................................................................................... 131
15.8.1 Automatic data output / Auto Print function........................................................................ 131
15.8.2 Continuous data output ...................................................................................................... 132
15.8.3 GLP Output Function ......................................................................................................... 134
15.8.4 Defining output details........................................................................................................ 135
15.10 USB connection ............................................................................................................... 136
15.10.1 Edit weighing data, adjustment logs and screenshots to USB medium ............................ 137
15.10.2 Data transfer by means of barcode reader ........................................................................ 140
16 Servicing, maintenance, disposal ............................................................ 141
16.1 Cleaning ................................................................................................................................ 141
16.2 Servicing, maintenance ....................................................................................................... 142
16.3 Disposal................................................................................................................................. 143
17 Instant help for troubleshooting............................................................... 143
18 Ionizer ......................................................................................................... 145
18.1 General hints......................................................................................................................... 145
18.2 Basic Safety Precautions .................................................................................................... 145
18.3 Technical data....................................................................................................................... 147
18.4 Commissioning..................................................................................................................... 148
18.5 Maintenance & Cleaning ...................................................................................................... 150

5 TABP-BA-e-2212
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
± 0.00005g /0.0002g
± 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 (verified)
Smallest component weight
for part counting
1mg (under lab conditions*)
10 mg (under normal conditions**)
Reference quantities at
piece counting
1 - 100
Weighing plate, stainless steel
ø 91mm
Dimensions caisse
(l x L x h) [mm]
212 x 367 x 345
212 x 411 x 345
212 x 411 x 345
Dimensions
Glass wind screen [mm]
170 x 165 x 220 mm (weighing space)
Net weight (kg)
7
8
8
Permissible
ambient condition
+10° C to +30° C
Humidity of air
20 ~ 85 % relative (not condensing)
Power supply unit
Input voltage
AC 100 -240 V, 320 –190 mA 50/60Hz
Balance
Input voltage
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-2212 6
KERN
ABP 200-4M
ABP 200-5DM
ABP 200-5M
Item no./ Type
TABP 200-4M-A
TABP 200-5DM-A
TABP 220-5M-A
Readability (d)
0.0001 g
0.00001 g/0.0001 g
0.00001 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
0.000015 g@20g
0.0003 g@100g
0.0005 g@200g
Linearity
± 0.0002 g
± 0.0001 g / 0.0002 g
± 0.0001 g
Stabilization time
2 s
2 s / 8 s
8 s
Adjustment weight
internal
Warm-up time
8 h
Weighing Units
mg, g, ct (verified)
Smallest component weight
for part counting
1mg (under lab conditions*)
10 mg (under normal conditions**)
Reference quantities at
piece counting
1 - 100
Weighing plate, stainless steel
ø 91mm
Dimensions caisse
(l x L x h) [mm]
212 x 367 x 345
212 x 411 x 345
212 x 411 x 345
Dimensions
Glass wind screen [mm]
170 x 165 x 220 mm (weighing space)
Net weight (kg)
7
8
8
Permissible
ambient condition
+10° C to +30° C
Humidity of air
20 ~ 85 % relative (not condensing)
Power supply unit
Input voltage
AC 100 -240 V, 320 –190 mA 50/60Hz
Balance
Input voltage
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)

7 TABP-BA-e-2212
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 (verified)
Smallest component weight
for part counting
1mg (under lab conditions*)
10 mg (under normal conditions**)
Reference quantities at
piece counting
1 - 100
Weighing plate, stainless steel
ø 91mm
Dimensions caisse
(l x L x h) [mm]
212 x 367 x 345
Dimensions
Glass wind screen [mm]
170 x 165 x 220 mm (weighing space)
Net weight (kg)
7
Permissible
ambient condition
+10° C to +30° C
Humidity of air
20 ~ 85 % relative (not condensing)
Power supply unit
Input voltage
AC 100 -240 V, 320 –190 mA 50/60Hz
Balance
Input voltage
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-2212 8
KERN
ABP 100-5DAM
ABP 100-5AM
ABP 200-4AM
Item no./ Type
TABP 120-5DAM-A
TABP 135-5AM-A
TABP 220-4M-A
Readability (d)
0.00001 g/0.0001 g
0.00001 g
0.0001 g
Weighing range (max)
52 g/120 g
135 g
220 g
Minimum load (Min)
0.001 g
0.001 g
0.01 g
Verification value (e)
0.001 g
0.001 g
0.001 g
Verification class
I
I
I
Reproducibility
0.00002 g / 0.0001 g
0.00005 g
0.0001 g
Linearity
± 0.00005g /0.0002g
± 0.0001 g
± 0.0002 g
Stabilization time
2 s / 8 s
8 s
2 s
Adjustment weight
internal
Warm-up time
8 h
Weighing Units
mg, g, ct (unverified)
Smallest component weight
for part counting
1mg (under lab conditions*)
10 mg (under normal conditions**)
Reference quantities at
piece counting
1 - 100
Weighing plate, stainless steel
ø 91 mm
Dimensions caisse
(l x L x h) [mm]
212 x 411 x 345
212 x 411 x 345
212 x 367 x 345
Dimensions
Glass wind screen [mm]
170 x 165 x 220 mm (weighing space)
Net weight (kg)
9.7
9.7
8.6
Permissible
ambient condition
+10° C to +30° C
Humidity of air
20 ~ 85 % relative (not condensing)
Power supply unit
Input voltage
AC 100 -240 V, 480 mA 50/60Hz
Balance
Input voltage
DC 12 V, 1.5 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)

9 TABP-BA-e-2212
KERN
ABP 200-5DAM
ABP 200-5AM
ABP 300-4AM
Item no./ Type
TABP 220-5DM-A
TABP 220-5M-A
TABP 320-4AM-A
Readability (d)
0.00001 g/0.0001 g
0.00001 g
0.0001 g
Weighing range (max)
102 g/220 g
220 g
320 g
Minimum load (Min)
0.001 g
0.001 g
0.01 g
Verification value (e)
0.001 g
0.001 g
0.001 g
Verification class
I
I
I
Reproducibility
0.00005 g / 0.0001 g
0.000015 g@20g
0.0003 g@100g
0.0005 g@200g
0.00015 g
Linearity
± 0.0001g / 0.0002g
± 0.0001 g
± 0.0003 g
Stabilization time
2 s / 8 s
8 s
2 s
Adjustment weight
internal
Warm-up time
8 h
Weighing Units
mg, g, ct (unverified)
Smallest component weight
for part counting
1mg (under lab conditions*)
10 mg (under normal conditions**)
Reference quantities at
piece counting
1 - 100
Weighing plate, stainless steel
ø 91mm
Dimensions caisse
(l x L x h) [mm]
212 x 411 x 345
212 x 411 x 345
212 x 367 x 345
Dimensions
Glass wind screen [mm]
170 x 165 x 220 mm (weighing space)
Net weight (kg)
9.7
9.7
8.6
Permissible
ambient condition
+10° C to +30° C
Humidity of air
20 ~ 85 % relative (not condensing)
Power supply unit
Input voltage
AC 100 -240 V, 480 mA 50/60Hz
Balance
Input voltage
DC 12 V, 1.5 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-2212 10
* 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 conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce
For verified weighing scales (= weighing scales assessed for
conformity) the declaration of conformity is included in the scope of
delivery.

11 TABP-BA-e-2212
3 Appliance overview
3.1 Components
Models d = 0.0001 g
Models d = 0.00001 g
(only ABP-A series)
Pos.
Designation
Pos.
Designation
1
Keyboard
15
Support multi-function weighing plate
2
Display
16
Multi-function weighing plate
3
Ionizer button
17
Test tube holder
4
Bubble level
18
Guide rail internal windshield
5
Levelling screw
19
Adjustable internal windshield
6
Control buttons +
20
IR sensors
7
Weighing pan
21
Door opening and closing buttons
8
Windshield
22
Ionizer button
9
Knob for glass windshield
23
Ionizer
10
Fastening point ionizer (optional)
24
Ventilation
11
USB host port
25
Power LED (ionizer)
12
Guard plate
26
RUN LED (ionizer)
13
Windshield
27
ALARM LED (ionizer)
14
Carrier weighing pan
(ABP 200-5M / ABP 200-5AM only)
(Models d = 0.0001 g of ABP-A only)
)
(Models d = 0.0001 g of ABP-A only)
)

TABP-BA-e-2212 12
Rear view:
Models d = 0.0001 g
Models d = 0.00001 g
(only ABP-A series)
Pos.
Designation
Pos.
Designation
28
Serial interface (RS232)
35
Power Pack
29
USB device
36
Connector for AC adapter (ionizer)
30
Port for ionizer
37
Main switch (ionizer)
31
Connector for AC adapter
38
Connection for balance
32
Fastening point for anti-theft device
39
Connector for AC adapter
33
Fastening lug for anti-theft chain or
wire
40
Connecting cable for ionizer
34
Port for power pack

13 TABP-BA-e-2212
3.2 Keyboard
ABP series
ABP-A series
Button
Designation
Function
Short key pressing
Long key pressing
In menu
[ON/OFF]
Switching between
operating and
standby mode
-
Return to
weighing mode
[1d/10d]
Readability change
-
-
[CAL]
Start adjustment
Call setup menu
"Adjustment"
-

TABP-BA-e-2212 14
[PRINT]
Data output to
external device
(weighing mode)
Call setup menu
"Print"
-
[TARE]
Taring
Zeroing
Call setup "Zero
Setting / Taring"
-
[MENU]
•Call up menu
•Call application
specific settings
•Call Statistics
-
Return to
weighing mode
[Ionizer]
Starting the ionizer
(ABP series Factory
Option)
Call Setup Menu
Ionizer
(ABP Series Factory
option)
-
[OK]
-
-
Confirm
input
[R]
Change response
setting for display
-
Select menu
item.
Navigation key 
[UNIT]
Weighing mode:
Switch-over weighing
unit.
Counting mode:
Display single weight
Calculate
percentage:
Display reference
weight
Call setup menu
"Units"
Scroll forward in
menu
Navigation key 
[F]
Switch over
weighing mode /
application mode
-
Scroll
backwards in
menu
Navigation key 
[S]
Change stability
setting of display
-
Select menu
item.
Navigation key ➔
Door opening
and closing
buttons
Opens / closes the
glass doors
-
Opens / closes
the glass doors

15 TABP-BA-e-2212
3.2.1 Numeric entry
Button
Designation
Function
Navigation key 
Flashing digit (0 –9) or
increase character (, [blank], -, A –Z)
Navigation key 
Flashing digit (0 –9) or
reduce character (, [blank], -, A –Z)
Navigation key ➔
Digit selection to the right
Navigation key 
Digit selection to the left
Navigation button
Confirm entry
ESC
Cancel input

TABP-BA-e-2212 16
3.3 Display
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.
No.
Status
Description
1
Operating
mode
Current application
2
User field
Display of logged-in user and current time
Data output to external devices
USB-storage medium is connected
Menu Lock
3
Weighing
value
Display of weighing result in current weighing unit
Stability display
Net weight
Tare weight
Gross weight
Hold function enabled
Zero display
Negative weighed value
Net weight during recipe composition
Tolerance mark
Capacity display
The non-verified value is given in
brackets in verified scales.

17 TABP-BA-e-2212
4
Status display
Current settings
Minimum initial weight
Settings for Stability and Response
Printer settings
Auto Print function active
Flashing during automatic Output
continuous output enabled
Flashing during continuous Output
Weighing settings
Dispensing mode
Zero tracking (auto. zero point correction)
Statistics
Error messages
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.
Example of application: System settings, see chap. 11.1.3

TABP-BA-e-2212 18
Symbol
Description
Application icons
Level 1
Selecting an
application
Weighing mode
Piece counting
Percent determination
Density determination <Solid
matter>
Density determination <Liquid>
Totalization
Recipe composition
Recipe preparation
Buffer solution preparation
Sample preparation
Symbol
Description
Application icons
Level 2
Icon of selected
application
Available settings will be shown on level 1.
Level 1
Weighing settings
Dosing
Zero tracking
Level 1
System Settings
Balance settings
Settings <Print>
Settings <Save data>
Settings <Communication>
Settings <Adjustment>
Settings <User>
Level 1
History
The last 10 menu steps will be displayed.
Further information about navigation in the menu you will find in chap. 11.1
The icon for the
application selected
will be shown

19 TABP-BA-e-2212
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 center of the weighing
pan. As soon as a stable weighing value is reached, the weighing value can be read.
4.2 Improper Use
Our balances are non-automatic balances and not provided for use in dynamic
weighing processes. However, the balances can also be used for dynamic weighing
processes after verifying their individual operative range, and here especially the
accuracy requirements of the application.
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 the 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.
4.3 Warranty
Warranty claims shall be voided in case:
•Our conditions in the operation manual are ignored
•The appliance is used beyond 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

TABP-BA-e-2212 20
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 staff.
6 Transport 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.