KERN AEJ-C User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Analysis and precision balances
KERN AEJ-C / AES-C / PLJ-C
Version 2.1
11/2016
GB
AEJ-C / AES-C / PLJ-C-BA-e-1621

2AEJ-C/AES-C/PLJ-C-BA-e-1621
GB
KERN AEJ-C / AES-C / PLJ-C
Version 2.111/2016
Operating manual
Analysis and precision balances
Contents
1Technical data ................................................................................................... 6
2Declaration of Conformity .............................................................................. 11
3Device overview .............................................................................................. 12
3.1 Display and Keyboard Summary .......................................................................................... 15
3.1.1 Navigation keys / numeric input ............................................................................................... 16
4Basic Information (General) ........................................................................... 17
4.1 Utilisation in accordance with specification ....................................................................... 17
4.2 Improper Use .......................................................................................................................... 17
4.3 Warranty.................................................................................................................................. 17
4.4 Monitoring of Test Resources............................................................................................... 18
5Basic Safety Precautions................................................................................ 18
5.1 Pay attention to the instructions in the Operation Manual................................................ 18
5.2 Personnel training.................................................................................................................. 18
6Transport and storage .................................................................................... 18
6.1 Testing upon acceptance ...................................................................................................... 18
6.2 Packaging / return transport ................................................................................................. 18
7Unpacking, Setup and Commissioning......................................................... 21
7.1 Installation Site, Location of Use.......................................................................................... 21
7.2 Unpacking and checking....................................................................................................... 21
7.3 Placing..................................................................................................................................... 22
7.4 Levelling.................................................................................................................................. 25
7.5 Mains connection................................................................................................................... 26
7.6 Commissioning....................................................................................................................... 26
7.6.1 Connecting to power supply..................................................................................................... 26
7.6.2 Switching on and off................................................................................................................. 27
7.6.3 Selecting user language........................................................................................................... 27
7.6.4 Log on and off (activated user profile only).............................................................................. 27
7.7 Peripheral equipment............................................................................................................. 30
8Menu................................................................................................................. 31
8.1 Menu structure........................................................................................................................ 31
8.2 Navigation in the menu.......................................................................................................... 33
9Weighing mode................................................................................................ 34
9.1 Weighing ................................................................................................................................. 34
9.1.1 Simple weighing ....................................................................................................................... 34
9.1.2 Zeroing ..................................................................................................................................... 34
9.1.3 Weighing with tare.................................................................................................................... 35
9.2 Underfloor weighing............................................................................................................... 38
9.3 Settings <P2.2 WEIGHING>................................................................................................... 39
9.3.1 <P2.2.1.1> Filter Matching weighing type to ambient conditions........................................... 41
9.3.2 <P2.2.1.2> Rest position control display.................................................................................. 42
9.3.3 <P2.2.1.3> Auto zero function.................................................................................................. 43
9.3.4 <P2.2.1.4> Hiding last digit of display...................................................................................... 44
9.3.5 <P2.2.1.5> Environment........................................................................................................... 45
9.3.6 <P2.2.2 > AUTOTARE / <P2.2.3.2> AUTO THRESHOLD...................................................... 46
9.3.7 <P2.2.3.> Manual / automatic data output / <P2.2.3.2> AUTO THRESHOLD....................... 47

AEJ-C/AES-C/PLJ-C-BA-e-1621 3
9.3.8 <P2.2.4> Informational line ...................................................................................................... 49
9.3.9 <P2.2.5> Special information ................................................................................................... 50
9.3.10 <P2.2.6> Assigning function keys........................................................................................ 51
10 < P 8 UNTIS > ............................................................................................... 52
10.1 Change weighing unit < P8.1> .............................................................................................. 52
10.2 Defining start-up weighing unit < P8.2>............................................................................... 53
10.3 Defining freely programmable weighing units < P8.3 / P8.4>............................................ 54
11 General parameter < P 6 OTHER>.............................................................. 55
12 Show device info < P 7 INFO> .................................................................... 57
13 Adjustment < P1 JUSTAGE >...................................................................... 58
13.1 Automatic adjustment using internal weight (models AEJ, PLJ)...................................... 59
13.2 Settings in menu <P1 JUSTAGE>......................................................................................... 61
13.2.1 <P1.1 INT. JUST.>............................................................................................................... 62
13.2.2 <P1.2 EXT. JUST.> (AES models)...................................................................................... 63
13.2.3 < P1.3 USER ADJUSTMENT > Adjustment by using user-defined external weight........... 65
13.2.4 < P1.4 JUST.TEST > Adjustment test ................................................................................. 67
14 Define logs < P5 PRINTOUTS > .................................................................. 68
14.1 Adjustment log <P5.1>........................................................................................................... 68
14.2 Weighing log........................................................................................................................... 70
14.2.1 Define header<P5.2>........................................................................................................... 70
14.2.2 Print weighing results / define GLP log<P5.3> .................................................................... 71
14.2.3 Define footer<P5.4>............................................................................................................. 72
14.3 User-defined data output < P5.5> - <P5.8 SPECIAL PRINTOUT >..................................... 73
14.4 Universal variables................................................................................................................. 75
14.5 Save logs to USB storage medium / print............................................................................ 76
15 Data bases.................................................................................................... 77
15.1 User database......................................................................................................................... 78
15.1.1 Create new user................................................................................................................... 79
15.1.2 Delete user........................................................................................................................... 80
15.1.3 For invoking a user............................................................................................................... 81
15.2 Product database ................................................................................................................... 81
15.2.1 Create new product.............................................................................................................. 82
15.3 Container weights .................................................................................................................. 84
15.3.1 Create new container weight ............................................................................................... 84
15.4 Weighing results..................................................................................................................... 85
15.5 Alibi memory........................................................................................................................... 87
15.6 Export / import databases to USB storage medium........................................................... 89
16 Application settings..................................................................................... 91
16.1 Selecting an application ........................................................................................................ 91
17 Parts counting.............................................................................................. 93
17.1 Settings <P2.3> PARTS COUNTING>................................................................................... 93
17.2 Carry out parts counting........................................................................................................ 94
17.2.1 Determination of the reference piece weight by weighing ................................................... 94
17.2.2 Enter known reference single weight as numeric value....................................................... 97
17.2.3 Invoking reference single weight from the product database .............................................. 98
18 Checkweighing ............................................................................................ 99
18.1 Settings <P2.4> CHECKWEIGHING>.................................................................................... 99
18.1.1 Entering limits with a function key...................................................................................... 100
18.1.2 Invoke limits from the product database ............................................................................ 102
19 Dosing......................................................................................................... 103
19.1 Settings <P2.5> DOSING ..................................................................................................... 103
19.1.1 Enter target weight with the function key........................................................................... 104
19.1.2 Invoke target weight from product database...................................................................... 106
20 Percent weighing....................................................................................... 107

4AEJ-C/AES-C/PLJ-C-BA-e-1621
20.1 Settings <P2.6> DEVIATION>.............................................................................................. 107
20.2 Perform percentage weighing............................................................................................. 108
20.2.1 Determination of the reference weight by weighing........................................................... 108
20.2.2 Enter known reference weight as numeric value............................................................... 109
20.2.3 Invoke the reference weight from the product database.................................................... 110
21 Animal weighing ........................................................................................ 111
21.1 Animal weighing by manual start ....................................................................................... 111
21.2 Animal weighing with automatic start................................................................................ 113
22 Determining the density of solid matter and fluids................................. 116
22.1 Settings <P2.7> or <P2.8> DENSITY DETERMINATION> ................................................. 117
23 Statistics..................................................................................................... 118
24 Totalization................................................................................................. 122
25 Peak value function................................................................................... 126
26 Pipette calibration...................................................................................... 128
26.1 Settings <P2.13 PIPETTE CALIBRATION >........................................................................ 128
26.2 Procedure.............................................................................................................................. 128
27 Communication / setup menu < P3 >....................................................... 135
27.1 Configuring a <P3.1 / P3.2> RS-232 interface.................................................................... 136
27.2 <P3.3> WLAN interface (factory option KERN PLJ-A06).................................................. 138
27.2.1 P3.3.2 - SELECT NET ....................................................................................................... 139
27.2.2 <P3.3.3> - NETWORK PARAMETER ............................................................................... 141
27.3 USB interfaces...................................................................................................................... 143
27.3.1 USB type A......................................................................................................................... 143
27.3.2 USB type B (PC connection).............................................................................................. 143
28 Devices / setup menu < P4 >..................................................................... 145
28.1 Continuous data transmission for remote control commands < P4.1 Computer > ...... 145
28.2 To start data transmission, press the PRINT-key < P4.2 Printer >.................................. 149
28.3 < P4.3 Barcode Scanner > ................................................................................................... 152
29 Communication with external devices (printer / PC).............................. 153
29.1 Pin assignment of RS 232 interface (frontal view):........................................................... 153
29.2 Interface cable ...................................................................................................................... 154
29.3 Data transmission format.................................................................................................... 155
29.4 Interface commands............................................................................................................. 157
29.5 General reply format ............................................................................................................ 158
29.6 Detailed information to communication logs.................................................................... 159
29.6.1 Zeroing............................................................................................................................... 159
29.6.2 Taring................................................................................................................................. 159
29.6.3 Query tare value................................................................................................................. 159
29.6.4 Set tare value..................................................................................................................... 160
29.6.5 Send stable weighing value in standard weighing unit ...................................................... 160
29.6.6 Send weighing value immediately in standard weighing unit............................................. 161
29.6.7 Send stable weighing value in current weighing value ...................................................... 162
29.6.8 Send weighing value immediately in current weighing unit ............................................... 163
29.6.9 Start continuous output in standard weighing unit............................................................. 163
29.6.10 Stop continuous output in standard weighing unit ............................................................. 163
29.6.11 Start continuous output in current weighing unit................................................................ 164
29.6.12 Stop continuous output in current weighing unit................................................................ 164
29.6.13 Enter lower tolerance limit.................................................................................................. 164
29.6.14 Enter upper tolerance limit................................................................................................. 164
29.6.15 Query lower tolerance unit................................................................................................. 165
29.6.16 Query upper tolerance unit................................................................................................. 165
29.6.17 Enter reference single weight ............................................................................................ 165
29.6.18 Enter target weight (dosing)............................................................................................... 165
29.6.19 Enter reference weight (percentage weighing).................................................................. 166
29.6.20 Confirm / simulation “Press PRINT-key“............................................................................ 166
29.6.21 Start internal adjustment.................................................................................................... 166

AEJ-C/AES-C/PLJ-C-BA-e-1621 5
29.6.22 Disable automatic internal adjustment............................................................................... 166
29.6.23 Enable automatic internal adjustment................................................................................ 167
29.6.24 Enter serial number............................................................................................................ 167
29.6.25 Disable weighing balance keyboard .................................................................................. 167
29.6.26 Enable weighing balance keyboard ................................................................................... 167
29.6.27 List of available operating modes ...................................................................................... 168
29.6.28 Set operating mode............................................................................................................ 168
29.6.29 Query current operating mode........................................................................................... 168
29.6.30 Confirm sound signal ......................................................................................................... 169
29.6.31 Send all messages implemented....................................................................................... 169
30 Servicing, maintenance, disposal ............................................................ 170
31 Troubleshooting / error messages........................................................... 171

6AEJ-C/AES-C/PLJ-C-BA-e-1621
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

AEJ-C/AES-C/PLJ-C-BA-e-1621 7
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

8AEJ-C/AES-C/PLJ-C-BA-e-1621
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 to +40° C +10° C to +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

AEJ-C/AES-C/PLJ-C-BA-e-1621 9
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 to +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

10 AEJ-C/AES-C/PLJ-C-BA-e-1621
Dimensions
AEJ-C/AES-C:
PLJ-C:

AEJ-C/AES-C/PLJ-C-BA-e-1621 11
2 Declaration of Conformity
To view the current EC/EU Declaration of Conformity go to:
www.kern-sohn.com/ce
The scope of delivery for verified weighing balances (= conformity-
rated weighing balances) includes a Declaration of Conformity.

12 AEJ-C/AES-C/PLJ-C-BA-e-1621
3 Device overview
KERN AEJ/AES-C:
Pos. Designation
1 Glass wind screen
2 Weighing pan
3 Display
4 Keyboard
5 Levelling screw

AEJ-C/AES-C/PLJ-C-BA-e-1621 13
KERN PLJ-C:
Pos. Designation
1 Glass wind screen
2 Weighing pan
3 Display
4 Keyboard
5 Levelling screw

14 AEJ-C/AES-C/PLJ-C-BA-e-1621
Connections (all models):
Pos. Designation
1 Mains connection
2 COM 2 port
3 COM 1 port
4 USB 2 port (for devices such as printer,
PC)
5 USB 1 port (for devices such as
keyboard)

AEJ-C/AES-C/PLJ-C-BA-e-1621 15
3.1 Display and Keyboard Summary
Example AEJ-C:
Pos. Designation
1 Stability display
2 Indicator “zero display”
3 Information line
4 The non-verified value is given in brackets in verified scales.
5 Weighing unit “g“
Button Function
•Select operating mode
•Start adjustment
•Invoke setup menu
•Switch machine on/off
•Invoke database menu

16 AEJ-C/AES-C/PLJ-C-BA-e-1621
•Function key / shortcut to basic functions
•Taring
•Add data record
•Switch-over weighing unit
•Exit menu
•Shortcut key for most frequently occurring functions and
settings (For configuration see chap. 9.3.10)
•Navigation keys, see chap. 2.1.1
•Data output to external device (weighing mode)
•Confirm / store settings
•Zeroing
•Data record deletion
3.1.1 Navigation keys / numeric input
Button Designation Function
Navigation button Increase flashing digit
Move through numbers and alphabet in a forward
sequence
Navigation button Decrease flashing digit
Move through numbers and alphabet in a
backward sequence
Navigation button Digit selection to the right
Navigation button Digit selection to the left
Navigation button Confirm entry
Cancel input
The connection of a PC keyboard via USB interface makes numerical entry
easier.

AEJ-C/AES-C/PLJ-C-BA-e-1621 17
4 Basic Information (General)
4.1 Utilisation in accordance with specification
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 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 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

18 AEJ-C/AES-C/PLJ-C-BA-e-1621
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.
5.2 Personnel training
The weighing balance 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.
6.2 Packaging / return transport
•Keep all parts of the original packaging for a possibly required return.
•Only use original packaging for returning.

AEJ-C/AES-C/PLJ-C-BA-e-1621 19
•Prior to dispatch disconnect all cables and remove loose/mobile parts.
See example shown for 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.

20 AEJ-C/AES-C/PLJ-C-BA-e-1621
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