KERN AEJ-C User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Analytical Precision Balance
KERN AEJ-C/AES-C/PLJ-C
Version 1.4
10/2015
GB
AEJ-C/AES-C/PLJ-C-BA-e-1514

2 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
GB
KERN AEJ-C/AES-C/PLJ-C
Version 1.4 10/2015
Operating manual
Analytical Precision Balance
Contents
1Technical data ................................................................................................... 5
1.1 Dimensions ............................................................................................................................... 9
2Appliance overview......................................................................................... 10
2.1 Display and Keyboard Summary .......................................................................................... 13
2.1.1 Navigation buttons / numeric input....................................................................................... 15
3Basic instructions ........................................................................................... 16
3.1 Proper use............................................................................................................................... 16
3.2 Improper Use .......................................................................................................................... 16
3.3 Warranty.................................................................................................................................. 16
3.4 Monitoring of Test Resources............................................................................................... 17
4Basic Safety Precautions................................................................................ 17
4.1 Pay attention to the instructions in the Operation Manual................................................ 17
4.2 Personnel training.................................................................................................................. 17
5Transport and storage .................................................................................... 17
5.1 Testing upon acceptance ...................................................................................................... 17
5.2 Packaging / return transport ................................................................................................. 17
6Unpacking, Setup and Commissioning......................................................... 20
6.1 Installation Site, Location of Use.......................................................................................... 20
6.2 Unpacking and checking....................................................................................................... 20
6.3 Placing..................................................................................................................................... 21
6.4 Mains connection................................................................................................................... 24
6.4.1 Turning On the Power.......................................................................................................... 24
6.5 Connection of peripheral devices......................................................................................... 24
6.6 Initial Commissioning ............................................................................................................ 24
7Adjustment....................................................................................................... 25
7.1 Automatic adjustment with internal weight (only AEJ-C and PLJ-C) ............................... 26
7.2 Menu settings ......................................................................................................................... 27
7.2.1 P1.1 INT.J US T. - internal adjus tment (only models AE J -C and PLJ -C).................................... 27
7.2.2 P1.2 EXT.JUST.- external adjustment (only AES-C)........................................................... 28
7.2.3 P1.3 BE.JUST. User adjustment (model AES-C only)......................................................... 29
7.2.4 P1.4 TEST JUST. – adjustment report (only models AE J-C and PLJ -C) .................................... 30
7.2.5 Printing adjustment reports .................................................................................................. 31
7.3 Verification.............................................................................................................................. 32

AEJ-C/AES-C/PLJ-C-BA-e-1514 3
8Menu................................................................................................................. 34
8.1 Navigation in the menu.......................................................................................................... 34
8.2 Menu overview........................................................................................................................ 35
8.3 Exit menu / back to weighing mode. .................................................................................... 40
9Entry by navigation keys ................................................................................ 41
10 User............................................................................................................... 42
10.1 Login/logout............................................................................................................................ 42
10.2 Authorisation levels............................................................................................................... 43
11 Weighing....................................................................................................... 44
11.1 Switch on-off balance ............................................................................................................ 44
11.2 Weighing ................................................................................................................................. 44
11.3 Weighing units switch-over................................................................................................... 45
11.4 Taring....................................................................................................................................... 45
11.4.1 Entering a tare value manually (pre-tare)........................................................................ 45
11.4.2 Deleting the tare value..................................................................................................... 45
11.5 Underfloor weighing............................................................................................................... 46
11.6 Selecting the operating mode............................................................................................... 47
11.6.1 Invoking operating modes:............................................................................................... 47
11.6.2 To select operating modes: ............................................................................................. 48
12 Weighing scale settings operating mode weighing.................................. 49
12.1 Filter - adaptation to ambient conditions and weighing options ...................................... 49
12.2 Rest position control.............................................................................................................. 50
12.3 Auto Zero................................................................................................................................. 51
12.4 Hide last decimal place.......................................................................................................... 52
12.5 Environmental conditions ..................................................................................................... 53
12.6 Print mode............................................................................................................................... 54
12.7 Information display ................................................................................................................ 55
12.7.1 Special information .......................................................................................................... 56
12.7.2 Shortcut keys................................................................................................................... 57
13 Additional operating modes ....................................................................... 58
13.1 Parts counting ........................................................................................................................ 58
13.2 Weighing with tolerance range ............................................................................................. 63
13.3 Dosing...................................................................................................................................... 66
13.4 Percent determination............................................................................................................ 69
13.5 Animal weighing..................................................................................................................... 71
13.6 Statistics.................................................................................................................................. 73
13.7 Totalization.............................................................................................................................. 76
13.8 HOLD function........................................................................................................................ 79

4 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
14 Further useful functions “P6 OTHER“....................................................... 80
14.1 Language................................................................................................................................. 80
14.2 Authorisations ........................................................................................................................ 81
14.3 Acoustic signal for key operation......................................................................................... 82
14.4 Backlight and brightness control for display...................................................................... 83
14.5 Date.......................................................................................................................................... 84
14.6 Time ......................................................................................................................................... 85
14.7 Date format.............................................................................................................................. 86
14.8 Time format............................................................................................................................. 87
15 Weighing units............................................................................................. 88
15.1 How to enable weighing units............................................................................................... 88
15.2 How to set a standard weight unit........................................................................................ 89
16 GLP/ISO report “P5.3 GLP PRINT“............................................................. 90
17 Data output RS 232 and USB...................................................................... 92
17.1 Technical data......................................................................................................................... 92
17.2 Setting interface RS 232 ........................................................................................................ 93
17.3 Interface cable ........................................................................................................................ 94
17.4 Output log ............................................................................................................................... 94
17.4.1 Issue after pressing the PRINT ´button ........................................................................... 94
17.4.2 Remote control instructions............................................................................................. 95
18 Connecting external devices ...................................................................... 97
18.1 Printer settings ....................................................................................................................... 98
18.1.1 Setting an adjustment report............................................................................................ 99
18.1.2 Set header ..................................................................................................................... 100
18.1.3 Print measured result..................................................................................................... 101
18.1.4 Adjust footer................................................................................................................... 101
19 Data bases.................................................................................................. 102
19.1 Data base USER.................................................................................................................... 102
19.2 Data base products.............................................................................................................. 106
19.3 Data base Taring................................................................................................................... 109
19.4 Data base Weighing processes .......................................................................................... 110
19.5 Alibi memory......................................................................................................................... 113
19.6 Exporting and importing data bases.................................................................................. 114
20 Servicing, maintenance, disposal ............................................................ 117
20.1 Clean...................................................................................................................................... 117
20.2 Servicing, maintenance ....................................................................................................... 117
20.3 Disposal................................................................................................................................. 117
22 Instant help................................................................................................. 118
22.1 Error messages .................................................................................................................... 119
23 Declaration of conformity ......................................................................... 120

AEJ-C/AES-C/PLJ-C-BA-e-1514 5
1 Technical data
KERN AEJ 100-4CM AEJ 200-4CM AEJ 200-5CM
Readability (d) 0.1 mg 0.1 mg 0.01 mg; 0.1 mg
Weighing range (max) 160 g 220 g 82 g; 220 g
Minimum load (Min) 10 mg 10 mg 1 mg
Verification value (e) 1 mg 1 mg 1 mg; 1 mg
Verification class I I I
Reproducibility 0.2 mg 0.2 mg 0.04 mg; 0.1 mg
Linearity ± 0.3 mg ± 0.3 mg ± 0.1 mg; 0.2 mg
Stabilization time 4 sec. 4 sec. 6 sec; 3.5sec.
Adjustment weight internal internal internal
Warm-up time 8 h 8 h 8 h; 8 h
Weighing Units g, mg, ct g, mg, ct g, mg, ct
Smallest part weight for
piece counting 0.1 mg 0.1 mg 0.1 mg
Reference quantities at
piece counting 10, 20, 50, freely selectable 10, 20, 50, freely selectable 10, 20, 50, freely selectable
Weighing plate, stainless
steel [cm] Ø 10 Ø 10 Ø 8.5
Net weight (kg) 5.4 5.4 5.4
Permissible
ambient condition +10° C to +40° C +10° C to +40° C +10° C to +40° C
Humidity of air 80 % relative
(not condensing) 80 % relative (not condensing) 80 % relative (not condensing)
Input voltage 110 - 230 V AC, 110 - 230 V AC, 110 - 230 V AC,
Power pack
secondary voltage 13.5 V – 16 V 13.5 V – 16 V 13.5 V – 16 V
Interface RS 232C; USB RS 232C; USB RS 232C; USB
Underfloor weighing device Hooks Hooks Hooks

6 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
KERN AES 100-4C AES 200-4C
Readability (d) 0.1 mg 0.1 mg
Weighing range (max) 160 g 220 g
Reproducibility 0.2 mg 0.2 mg
Linearity ± 0.2 mg ± 0.2 mg
Stabilization time 4 sec. 4 sec.
Recommended adjusting
weight not supplied (class) 150 g (E2) 200 g (E2)
Warm-up time 8 h 8 h
Weighing Units ct, dwt, g, gn, mg, oz ct, dwt, g, gn, mg, oz
Smallest part weight for
piece counting 0.5 mg 0.5 mg
Reference quantities at
piece counting 10, 20, 50, freely selectable 10, 20, 50, freely selectable
Weighing plate, stainless
steel [cm] Ø 10 Ø 10
Net weight (kg) 5.4 5.4
Permissible
ambient condition +18° C to +30° C +18° C to +30° C
Humidity of air 80 % relative
(not condensing) 80 % relative (not condensing)
Input voltage 110 - 230 V AC, 110 - 230 V AC,
Power pack
secondary voltage 13.8 V 13.8 V
Interface RS 232C; USB RS 232C; USB
Underfloor weighing device Hooks Hooks

AEJ-C/AES-C/PLJ-C-BA-e-1514 7
KERN PLJ 300-3CM PLJ 600-3CM
Readability (d) 1 mg 1 mg
Weighing range (max) 360 g 600 g
Minimum load (Min) 20 mg 20 mg
Verification value (e) 10 mg 10 mg
Verification class II II
Reproducibility 1 mg 2 mg
Linearity ± 4 mg ± 4 mg
Stabilization time 4 sec. 4 sec.
Adjustment weight internal internal
Warm-up time 2 h 4 h
Weighing Units ct, g, kg ct, g, kg
Smallest part weight for
piece counting 5 mg 5 mg
Reference quantities at
piece counting 10, 20, 50, freely selectable 10, 20, 50, freely selectable
Weighing plate, stainless
steel [mm] 128 x 128 128 x 128
Net weight (kg) 4.6 4
Permissible
ambient condition +10° C bis +40° C +10° C bis +40° C
Humidity of air 80 % relative
(not condensing) 80 % relative (not condensing)
Input voltage 100 - 240 V 100 - 240 V
Power pack
secondary voltage 13.5 V – 16 V 13.5 V – 16 V
Interface RS 232C; USB RS 232C; USB
Underfloor weighing device Hooks Hooks

8 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
KERN PLJ 700-3CM PLJ 3000-2CM
Readability (d) 1 mg 10 mg
Weighing range (max) 750 g 3500 g
Minimum load (Min) 20 mg 500 mg
Verification value (e) 10 mg 100 mg
Verification class II II
Reproducibility 2 mg 10 mg
Linearity ± 4 mg ± 40 mg
Stabilization time 4 sec. 4 sec.
Adjustment weight internal
Warm-up time 4 h 2 h
Weighing Units ct, g, kg
Smallest part weight for
piece counting 5 mg
Reference quantities at
piece counting 10, 20, 50, freely selectable
Weighing plate, stainless
steel [mm] 128 x 128 195 x 195
Net weight (kg) 3.5 4.4
Permissible
ambient condition +10° C bis +40° C
Humidity of air 80 % relative
(not condensing)
Input voltage 100 - 240 V
Power pack
secondary voltage 13.5 V – 16 V
Interface RS 232C; USB
Underfloor weighing device Hooks

AEJ-C/AES-C/PLJ-C-BA-e-1514 9
1.1 Dimensions
AEJ-C/AES-C:
PLJ-C:

10 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
2 Appliance overview
KERN AEJ/AES-C:
1. Glass wind screen
2. Weighing pan
3. Display
4. Keyboard
5. Levelling screw

AEJ-C/AES-C/PLJ-C-BA-e-1514 11
KERN PLJ-C:
1. Glass wind screen
2. Weighing pan
3. Display
4. Keyboard
5. Levelling screw

12 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
Connections (all models):
1. Mains connection
2. COM 2 connection
3. COM 1 connection
4. USB 2 connection
5. USB 1 connection

AEJ-C/AES-C/PLJ-C-BA-e-1514 13
2.1 Display and Keyboard Summary
Example AEJ-C:
1. Stability display
2. Zero indicator
3. Information line
4. The non-verified value is given in brackets in verified scales.
5. Weighing unit “g“

14 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
Button Function
•Turn on/off
•Invoke data bases
•Function key
•Selection of operating mode
•Invoke adjustment
•Call up menu
•Taring
•Switch-over weighing unit
•In menu: Return to weighing mode
•Scroll backwards in menu
•Scroll forward in menu
•Navigation keys see chap. 2.1.1
•Calculate weighing data via interface
•Confirm/save in menu
•Zeroing
•Delete entry in data base

AEJ-C/AES-C/PLJ-C-BA-e-1514 15
2.1.1 Navigation buttons / numeric input
Button Designation Function
Navigation button Increase flashing digit
Navigation button Decrease flashing digit
Navigation button Digit selection to the right
Navigation button Digit selection to the left
Navigation button Confirm entry
ESC Cancel input

16 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
3 Basic instructions
3.1 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.
3.2 Improper Use
Do not use balance for dynamic add-on weighing procedures, if small amounts of
goods to be weighed are removed or added. The “stability compensation“ installed in
the balance may result in displaying an incorrect measuring value! (Example: Slowly
draining fluids from a container on the balance.)
Do not leave permanent load on the weighing pan. This may damage the measuring
system.
Impacts and overloading exceeding the stated maximum load (max) of the balance,
minus a possibly existing tare load, must be strictly avoided. Balance may be
damage by this.
Never operate balance in explosive environment. The serial version is not explosion
protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the balance.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
3.3 Warranty
Warranty claims shall be voided in case
•Our conditions in the operation manual are ignored
•The appliance is used outside the described uses
•The appliance is modified or opened
•Mechanical damage or damage by media, liquids, natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded

AEJ-C/AES-C/PLJ-C-BA-e-1514 17
3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
balance and, if applicable, the testing weight, must be checked regularly. The
responsible user must define a suitable interval as well as type and scope of this test.
Information is available on KERN’s home page (www.kern-sohn.com with regard to
the monitoring of balance test substances and the test weights required for this. In
KERN's accredited DKD calibration laboratory test weights and balances may be
calibrated (return to the national standard) fast and at moderate cost.
4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN balances.
All language versions contain a non-binding translation.
The original German is binding.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transport and storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
5.2 Packaging / return transport
Keep all parts of the original packaging for a possibly required return.
Only use original packaging for returning.

18 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
Prior to dispatch disconnect all cables and remove loose/mobile
parts.
Figure example KERN AEJ/AES-C
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.

AEJ-C/AES-C/PLJ-C-BA-e-1514 19

20 AEJ-C/ AEJ-C/AES-C/PLJ-C-BA-e-1514
6 Unpacking, Setup and Commissioning
6.1 Installation Site, Location of Use
The balances are designed in a way that reliable weighing results are achieved in
common conditions of use.
You will work accurately and fast, if you select the right location for your balance.
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 (condensation of air humidity on the appliance)
may occur if a cold appliance is taken to a considerably warmer environment.
In this case, acclimatize the disconnected appliance for ca. 2 hours at room
temperature.
•Avoid static charge of goods to be weighed or weighing container.
If electro-magnetic fields or static charge occur, or if the power supply is unstable
major deviations on the display (incorrect weighing results) are possible. In that case,
the location must be changed.
6.2 Unpacking and checking
Remove device and accessories carefully from packaging, remove packaging
material and place device at the planned work place. Verify that there has been no
damage and that all packing items are present.
Scope of delivery / serial accessories:
•Balance, see chap. 2
•Mains adapter
•Operating manual
•Protective cover
•Flush-mounted hook
•Transport locking device (models AEJ-C and PLJ-C)