KERN & Sohn GmbH
Ziegelei 1
E-Mail: info@kern-sohn.com
Tel: +49-[0]7433- 9933-0
Internet: www.kern-sohn.com
Operating instructions
Analytical balance
KERN AEJ_N/AES_N
Version 2.1
03/2013
GB
D-72336 Balingen
Fax: +49-[0]7433-9933-149
AEJ_N/AES_N-BA-e-1321
KERN AEJ_N/AES_N
Electronic analytical balance
GB
Version 2.1 03/2013
Operating instructions
Contents
1 TECHNICAL DATA ............................................................................................. 5
1.1 Dimensions ............................................................................................................................... 7
2 APPLIANCE OVERVIEW ................................................................................... 8
2.1 Display and Keyboard Summary ............................................................................................ 9
2.1.1 Numeric entry ....................................................................................................................... 10
3 BASIC INSTRUCTIONS ................................................................................... 11
3.1 Proper use ............................................................................................................................... 11
3.2 Improper Use .......................................................................................................................... 11
3.3 Warranty .................................................................................................................................. 11
3.4 Monitoring of Test Resources ............................................................................................... 11
4 BASIC SAFETY PRECAUTIONS ..................................................................... 12
4.1 Pay attention to the instructions in the Operation Manual ................................................ 12
4.2 Personnel training .................................................................................................................. 12
5 TRANSPORT AND STORAGE ......................................................................... 12
5.1 Testing upon acceptance ...................................................................................................... 12
5.2 Packaging / return transport ................................................................................................. 12
6 UNPACKING, SETUP AND COMMISSIONING ............................................... 15
6.1 Installation Site, Location of Use .......................................................................................... 15
6.2 Unpacking and checking ....................................................................................................... 15
6.2.1 Scope of delivery / serial accessories .................................................................................. 15
6.2.2 Placing .................................................................................................................................. 16
6.3 Mains connection ................................................................................................................... 16
6.3.1 Turning On the Power .......................................................................................................... 17
6.4 Connection of peripheral devices ......................................................................................... 17
6.5 Initial Commissioning ............................................................................................................ 17
2 AEJ_N/AES_N-BA-e-1321
7 ADJUSTMENT .................................................................................................. 18
7.1 Automatic adjustment using interna l weight (AEJ only) .................................................... 19
7.2 Menu settings ......................................................................................................................... 21
7.2.1 P1.1 iCAL ............................................................................................................................. 21
7.2.2 P1.2 ECAL - External adjustment (AES models) ................................................................. 22
7.2.3 P1.3 tCAL – adjustment test ................................................................................................ 23
7.2.4 P1.4 ACAL – Start criteria of the automatic internal adjustment (AEJ only) ........................ 25
7.2.5 P1.5 CALt– time controlled automatic adjustment (AEJ only) ............................................. 26
7.2.6 P1.5 CALr– Enable/disable issue of adjustment protocol .................................................... 27
7.3 Verification .............................................................................................................................. 28
8 MENU ................................................................................................................ 30
8.1 Navigation in the menu .......................................................................................................... 32
8.2 Exit menu / back to weighing mode. .................................................................................... 33
9 WEIGHING FUNCTIONS P6 FUNC ................................................................. 34
9.1 Turn on/off balance ................................................................................................................ 34
9.2 Weighing ................................................................................................................................. 34
9.3 Standard weighing unit .......................................................................................................... 35
9.4 Weighing units switch-over ................................................................................................... 36
9.5 Taring ....................................................................................................................................... 36
9.6 Underfloor weighing ............................................................................................................... 37
9.7 Selecting the operating mode ............................................................................................... 38
9.7.1 Selecting accessible operating modes ................................................................................. 40
10 BALANCE SETTINGS “P3 READ” ............................................................. 41
10.1 Filter - ada p tation to ambient conditions and weighing options ...................................... 41
10.2 Rest position control display – Adaptation of weighing speed ........................................ 42
10.3 Auto Zero ................................................................................................................................. 43
10.4 Hide last decimal place .......................................................................................................... 44
10.5 Dispensing mode “RAPID” .................................................................................................... 45
11 FURTHER USEFUL FUNCTIONS “P7 OTHER“ .......................................... 46
11.1 Display background illumination .......................................................................................... 46
11.2 Acoustic signal for key operation ......................................................................................... 47
11.3 Print weighing settings .......................................................................................................... 48
AEJ_N/AES_N-BA-e-1321 3
12 GLP/ISO LOG “P2 GLP“ .............................................................................. 49
13 OPERATION MODES ................................................................................... 53
13.1 Parts counting ........................................................................................................................ 54
13.2 Weighing with tolerance range ............................................................................................. 58
13.3 Percent determination............................................................................................................ 61
13.3.1 Determining the reference weight by weighing (function F4 PrcA) ................................. 61
13.3.2 Numeric entry of reference weight (function F4 Prcb) ..................................................... 62
13.4 Dosing...................................................................................................................................... 64
13.5 Determining the density of solid matter and fluids ............................................................ 65
13.6 Pipette calibration .................................................................................................................. 66
13.6.1 Entering parameters ........................................................................................................ 66
13.6.2 Carry out series of measurements for test volume V0 ..................................................... 67
13.6.3 Carry out series of measurements for test volume V
13.6.4 Carry out series of measurements for test volume V1 ..................................................... 69
................................................... 68
1/2
14 DATA OUTPUT RS 232 “ P4 PRINT“ ............................................................ 71
14.1 Technical data ......................................................................................................................... 71
14.2 Interface cable ........................................................................................................................ 72
14.3 Menu settings “P4 PRINT“ .................................................................................................... 73
14.4 Printout examples (KERN YKB-01N) .................................................................................... 78
14.5 Output log ............................................................................................................................... 79
14.5.1 Issue after pressing the PRINT ´button ........................................................................... 79
14.5.2 PC controlled output ........................................................................................................ 80
14.5.3 Output of date/time .......................................................................................................... 80
14.6 Remote control instructions ................................................................................................. 81
15 SERVICE, MAINTENANCE, DISPOSAL ...................................................... 82
15.1 Cleaning .................................................................................................................................. 82
15.2 Ser vice, maintenance ............................................................................................................. 82
15.3 Disposal ................................................................................................................................... 82
16 INSTANT HELP ............................................................................................. 83
16.1 Error messages ...................................................................................................................... 84
17 DECLARATION OF CONFORMITY .............................................................. 85
4 AEJ_N/AES_N-BA-e-1321
1 Technical data
KERN AEJ 100-4NM AEJ 200-4NM AEJ 200-5NM
Readability (d) 0.1 mg 0.1 mg 0.01 mg / 0.1 mg
Weighing range (max) 160 g 220 g 60 g – 220 g
Minimum load (Min) 10 mg 10 mg 1 mg
Verification value (e) 1 mg 1 mg 1 mg
Verification class I I I
Reproducibility 0.2 mg 0.2 mg 0.04 mg / 0.2 mg
Linearity ± 0.3 mg ± 0.3 mg ± 0.1 mg / ± 0.3 mg
Stabilization time 4 sec.
Adjustment weight internal
Warm-up tim e 8 h
Weighing Units mg, g, ct
Smallest part weight for
piece counting
Reference quantities at
piece counting
Weighing plate, stainless
steel
Net weight (kg) 5.4
Permissible
ambient condition
Humidity of air 30 ~ 80 % relative (not condensing)
Input voltage 110 - 230 V - 240 V AC‚50 Hz
Power pack
secondary voltage
10 mg 10 mg 1 mg
10, 20, 50, freely selectabl e
ø 85mm ø 70mm
+18° C to +30° C
13.8 V
Interface RS 232C
Underfloor weighing
device
AEJ_N/AES_N-BA-e-1321 5
Hooks
KERN AES 100-4N AES 200-4N
Readability (d) 0.1 mg 0.1 mg
Weighing range (max) 160 g 220 g
Reproducibility 0.2 mg 0.2 mg
Linearity ± 0.3 mg ± 0.3 mg
Recommended adjusting
weight not supplied
(class)
Stabilization time 4 sec.
Warm-up tim e 8 h
Weighing Units g, mg, ct, oz, ozt, GN, mom, dwt, teal
150 g (E2) 200 g (E2)
Smallest part weight for
piece counting
Reference quantities at
piece counting
Weighing plate, stainless
steel
Net weight (kg) 5.4
Permissible
ambient condition
Humidity of air 30 ~ 80 % relative (not condensing)
Input voltage 110 - 230 V - 240 V AC‚50 Hz
Power pack
secondary voltage
Interface RS 232C
10, 20, 50, freely selectabl e
10 mg
ø 85mm
+18° C to +30° C
13.8 V
Underfloor weighing
device
6 AEJ_N/AES_N-BA-e-1321
Hooks
1.1 Dimensions
AEJ_N/AES_N-BA-e-1321 7
2 Appliance overview
1. Windshield
2. Weighing pan
3. Display
4. Keyboard
5. Levelling screw
6. Bubble level
7. Terminal power supply unit
8. RS232 interface
9. Not documented
8 AEJ_N/AES_N-BA-e-1321
• Taring
Exit menu / Return to weighing mode
2.1 Display and Keyboard Sum m ary
1. Stability display
2. Zero indicator
3. The non-calibrated value is given in brackets in calibrated scales.
4. Weighing unit “g“
Key
Function
• Turn on/off
• Call up menu
• Activate operating mode
• Scroll backwards in menu
• Switch-over weighing unit
• Scroll forward in menu
• Calculate weighing data via interface
• Confirm / save
• Zeroing
•
AEJ_N/AES_N-BA-e-1321 9
2.1.1 Numeric entry
Key Description Function
Navigation button
Navigation button
Navigation button
Navigation button
Navigation button
ESC Cancel input
Increase flashing dig i t
Decrease flashing digi t
Digit selection to the right
Digit selection as per
Confirm entry
10 AEJ_N/AES_N-BA-e-1321
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 balcance”, 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 f ault s 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.
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
3.4 Monitoring of Test Resource s
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.
AEJ_N/AES_N-BA-e-1321 11
4 Basic Safety Precautions
4.1 Pay attention to the instr uc t ions 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 t raining
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.
12 AEJ_N/AES_N-BA-e-1321
Prior to dispatch disconnect all cables and remove loose/mobile
parts.
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_N/AES_N-BA-e-1321 13
14 AEJ_N/AES_N-BA-e-1321
6 Unpacking, Setup and Commissioning
6.1 Installation Site, Locati on of Us e
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 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 c hang ed.
6.2 Unpacking and checking
Open package, take out the appliance and accessories. Verify that there has been no
damage and that all packing items are present.
6.2.1 Scope of delivery / serial accessories
• Balance, see chap. 2
• Mains adapter
• Operating instructions
• Protective cover
AEJ_N/AES_N-BA-e-1321 15
Level balance with foot screws until the air bubble of the water balance is in the
prescribed circle
Check levelling regularly
6.2.2 Placing
Installation of weighing plate
Models with weighing pan ø 85mm Models with weighing pan ø 70mm
Assemble all parts in the right order.
Close gates.
For instructions on how to connect the weighing scale to the
power supply see chap. 6.3.
6.3 Mains connection
Power is supplied via the external mains adapter. The stated voltage value must be
the same as the local voltage.
Only use original KERN mains adapters. Using other makes requires consent by
KERN.
16 AEJ_N/AES_N-BA-e-1321
6.3.1 Turning On the Power
Supply balance with power via the mains adapter. The displ ay unit lights
up and shown the software version. The weighing scale carries out a selftest and automatically moves into weighing mode.
In the AEJ models an automatic adjustment takes place.
6.4 Connection of periphera l de vi ce s
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.
6.5 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).
To adapt the balance to ambient conditions, open wind screen doors.
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
AEJ_N/AES_N-BA-e-1321 17
• Adjustment can only be carried out when the weighing pan is free of objects.
• You can cancel the adjustment by pressing the TARE-key.
7 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 meas ur i ng values it is also recommended to adjust the balance
periodically in weighing operation.
Possible adjustments include:
• Automatic adjustment using internal weights (AEJ models only)
For time and temperature controlled see chap. 7.1.
• Manual adjustment (AEJ model s onl y)
Activated by pressing the F-key three times, see chap. 7.2.1
• Adjustment with external weight, see chap. 7.2.2
Any loads remaining on the weighing pan will be indicated by error message
Er1Hi.
18 AEJ_N/AES_N-BA-e-1321
7.1 Automatic adjustment using internal weight (AEJ only)
With the internal adjustment weight, the weighing accuracy can be checked and readjusted at any time.
The automatic adjustment function is always enabled. You can start adjustment at
any time by pressing the F-key 3 times.
Temperature / time controlled adjustment is taking place:
Automatic adjustment will be indicated 5 minutes in advance by “°C” (change of
temperature ∆t 0.8°C) or the “►”symbol on the display (after a period of 3 hours has
passed or a defined time interval).
The user must complete his/her weighing process within this time.
After 5 minutes [ CAL 30 ] appears on the display.
This starts a “count down” of 30 seconds [ CAL 30 ] → [ CAL 0 ]. You may cancel
adjustment during these 30 seconds by pressing the TARE-key. This makes the
balance return to weighing mode in order to e. g. complete an unfinished
measurement.
After a further 5 minutes the automatic adjustment will restart and [ CAL 30 ]
appears.
You may interrupt the adjustment process several times. However, keep in mind that
an interruption of the adjustment may lead to incorrect weighing results.
AEJ_N/AES_N-BA-e-1321 19
In weighing scales with type approval certificate
Automatic adjustment is carried out:
• When balance was disconnected from the mains.
• When the temperature is changing
The moment a change in temperature of 0.8°C is detected by the temperature
sensor, the weighing scale will carry out a fully automatic adjustment. The °C
symbol indicates the pending adjustment.
• at the end of a time interval
After the time interval (selectable from 1-12 hours) set in the menu (P1.5 CALt)
has passed, the weighing scale will indicate the pending adjustment by displaying
(indicator ►):
• menu item P1.5 CALt is locked.
• Adjustment takes place every 3 hours
20 AEJ_N/AES_N-BA-e-1321
Time controlled automatic adjustment AEJ *
• Ensure that there are no objects on the weighing pan.
to weighing mode.
7.2 Menu settings
Menu item “P1 CAL“ [adjustment]
AEJ AES
P1.1 iCAL Internal adjustment AEJ only
P1.2 ECAL P1.1 ECAL External adjustment *
P1.3 tCAL P1.2 tCAL Adjustment test
P1.4 ACAL Automatic adjustment AEJ * only
P1.5 CALt
only
P1.6 CALr P1.3 CALr Printout adjustment log
* = Locked in weighing scales with type approval certificate [Er 9 lock].
7.2.1 P1.1 iCAL
For automatic internal adjustment see chap. 7.1
Starting inter nal adjustment manually
Press F-key three times
• You can cancel adjusting by pressing the TARE-key.
• After successful adjustment the balance automatically returns
AEJ_N/AES_N-BA-e-1321 21
Ensure that there are no objects on the
7.2.2 P1.2 ECAL - Extern al adjustment (AES models)
Carry out adjustment with the help of the recommended adjustment weight (see
chapter 1 “Technical Specifications”).
Observe stable environmental conditions. A warming up time (see chapter 1) is
required for stabilization.
• Return to weighing mode, see chap. 8.2.
• This function is locked in weighing scales with type approval certificate.
weighing pan. Press PRINT-key, CAL
will be shown.
Wait until the weighed value for the
required adjustment weight appears.
Place the required calibration weight
carefully in the centre of the weighing
plate and press the PRINT key.
The display is showing CAL and
adjustment is starting.
Adjustment will be complete when the
display is showing UNLOAD; remove
the adjustment weight. After successful
adjustment the balance automatically
returns to weighing mode.
22 AEJ_N/AES_N-BA-e-1321
d
7.2.3 P1.3 tCAL – adjustment test
AEJ models
This function is applied to compare the internal adjustment weight with the
saved value. The test is carried out automatically. The result is shown on the
display and, if an optional printer is connected, a printout will be issued via the
RS 232 interface.
+ Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 23
AES models
Here, deviation from the last adjustment is determined. This is only a check, i.e. no
values are changed.
+ Return to weighing mode, see chap. 8.2.
24 AEJ_N/AES_N-BA-e-1321
7.2.4 P1 . 4 ACAL – Start criteria of the automatic internal adjustment
(AEJ only)
This function is applied to defin e the criteria requir ed for starting up automatic adjustment.
Settings:
nonE Automatic adjus t ment disabled
tEmp Start automatic Adjustment after change in temperature
timE The start of time controlled automatic adjustment depends on the set ti ng
“P1.5 CALt”
both Start automatic Adjustment is temperature and time dependent
+ Return to weighing mode, see chap. 8.2.
This function is locked in weighing scales with type approval
certificate.
AEJ_N/AES_N-BA-e-1321 25
7.2.5 P1.5 CALt– time controlled automatic adjustment (AEJ only)
This function is applied to define the time interval (selectable from 1-12 hours) for
automatic adjustment.
+ Return to weighing mode, see chap. 8.2.
This function is locked in weighing scales with type approval
certificate.
26 AEJ_N/AES_N-BA-e-1321
7.2.6 P1.5 CALr– Enable/disable issue of adjustment protocol
This function enables auto ma ti c log iss ue a ft er each adj ustm ent. These logs may be
issued by using an optional printer.
To define the content of the protocol go to menu item “P2 GLP”, s. chap. 12
no Adjustment protocol disabled
YES Adjust me nt prot ocol en abl ed
+ Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 27
7.3 Verification
General introduction:
According to EU directive 2009/23EG balances must be officially verified if they are
used as follows (legally controlled area):
a) For commercial transactions if the price of goods is determined by weighing.
b) For the production of medicines in pharmacies as well as for analyses in the
medical and pharmaceutical laboratory.
c) For official purposes
d) For manufacturing final packages
In cases of doubt, please contact your local trade in standard.
Verification notes:
An EU type approval exists for balances described in their technical data as
verifiable. If a balance is used where obligation to verify exists as described above, it
must be verified and re-verified at regular intervals.
Re-verification of a balance is carried out according to the respective national
regulations. The validity for verification of balances in Germany is e.g. 2 years.
The legal regulation of the country where the balance is used must be observed!
Verification of the balance is invalid without the seal.
The seal marks attached on balances with type approval point out that the
balance may only be opened and serviced by trained and authorised
specialist staff. If the seal mark is destroyed, verification looses its validity.
Please observe all national laws and legal regulations. In Germany a reverification will be necessary.
28 AEJ_N/AES_N-BA-e-1321
Balances with obligation to verify must be taken out of operation if:
•
•
Position of the official seal s
Position of the “official seals“:
The weighing result of the balance is outside the error limit. Therefore,
in regular intervals load balance with known test weight (ca. 1/3 of the max.
load) and compare with displayed value.
The reverification deadline has been exceeded.
AEJ_N/AES_N-BA-e-1321 29
8 Menu
The menu is subdivided into seven menu blocks (P1 – P7).
P1 CAL [adjustment]
P1.1 iCAL | [internal adjustment] ALJ only
P1.2 ECAL | [external adjustment] *
P1.3 tCAL | [adjustment test]
P1.4 ACAL | both/nonE/tenno/tinnE [automatic adjustment] ALJ only *
P1.5 CALt | 1 h ÷ 12h [time setting for automatic adjustment] ALJ only *
P1.6 CALr | YES/no [printout adjustment log]
* = locked in devices with type approval certificate
P2 GLP [good lab practice]
P2.1 USr | _ [Enter user name]
P2.2 PrJ | _ Enter [project name]
P2.3 Ptin | YES/no [printout time]
P2.4 PdAt | YES/no [printout date]
P2.5 PUSr | YES/no [printout user]
P2.6 PPrJ | YES/no [printout project]
P2.7 PId | YES/no [printout serial number wei ghing balance]
P2.8 PFr | YES/no [frame printout]
P3 rEAd [main functions]
P3.1 AuE | Stand/Slouu/FASt [filter settings]
P3.2 ConF | FASt_rEL/Fast/rEL [rest control display]
P3.3 Auto | On/OFF [Auto zero]
P3.4 Ldi9 | ALuuAYS/never/uu_StAb [delete last decimal place]
P4 Print [parameter for serial interface RS 232]
P4.1 bAud | 2400/4800/9600/19200 [Baud rate]
P4.2 CntA | YES/no [continuous output standard weighing unit]
P4.3 Cntb | YES/no [continuous output currently set weighing unit]
P4.4 rEPL | YES/no [manual (press key) or automatic output]
P4.5 PStb | YES/no [output stable/instable weighing values]
P4.6 Lo | 000.0000 [input minimal weight for automatic output]
30 AEJ_N/AES_N-BA-e-1321
P5 unit [weighing unit]
P5.1 StUn | g/mg/ct/oz/ozt/dwt/t/mom/G [standard weighing unit, e.g. “g”]
P5.2 mg | YES/no [mg - milligram]
P5.3 Ct | YES/no [ct – carat]
P5.4 oZ | YES/no [oz – ounce]
P5.5 oZt | YES/no [ozt – Troy ounce]
P5.6 dwt | YES/no [dwt – pennyweight]
P5.7 t | YES/no [t – Tael]
P5.8 nno | YES/no [mom - Momme]
P5.9 Gr | YES/no [gr – Grain]
P6 Func [operating modes]
P6.1 FFun | ALL/PcS/HiLo/PrcA/Prcb/d_Co/d_Li
Pipette/FiLL [selection enabled operat in g modes ]
P6.2 PcS | YES/no [piece counting]
P6.3 HiLo | YES/no [weighing with tolerance control]
P6.4 PrcA | YES/no [percentage weighing, reference weight determination
"weighing"]
P6.5 Prcb | YES/no [percentage weighing, reference weight determination
“numeric“]
P6.6 d_Co | YES/no [determination density “solids”]
P6.7 d_Li | YES/no [determination density “liquids”]
P6.8 Pi_t | YES/no [Pipette calibration]
P6.9 Fill | YES/no [Dispensing]
P7 othEr [additional useful functions]
P7.1 bL | On/Aut/OFF Display background illumination
P7.2 bEEP | On/OFF [touch tone]
P7.3 PrnS | [printout “weighing parameters”]
AEJ_N/AES_N-BA-e-1321 31
Use the cursor key to scroll up.
8.1 Navigation in the menu
Call up menu In weighing mode press the F-key and the first menu block
“P1 CAL” will appear.
Select menu block Use the cursor key to select the individual menu blocks
one by one.
Use the cursor key to scroll down.
Use the cursor key to scroll up.
Select menu item
Select setting Acknowledge selecte d men u ite m using F button, the current
Change settings Use the cursor keys to change to the available settings.
Confirm setting / back
to menu
Save / back to
weighing mode
Confirm the selected menu block by pressing the F-key. The
first menu item of the selected menu block will be shown.
Use the cursor key to select individual menu items one by
one.
Use the cursor key to scroll down.
setting is displayed
Use the cursor key to scroll down.
Use the cursor key to scroll up.
Either confirm by pressing the PRINT-key or reject by
pressing the TARE-key.
see chap. 8.2
32 AEJ_N/AES_N-BA-e-1321
8.2 Exit menu / back to weighing mode.
Press the TARE-key repeatedly until “SAVE?” is displayed.
Any changes carried out are stored by pressing the PRINT key.
To cancel changes, press the TARE key.
Then the balance returns automatically into the weighing mode.
AEJ_N/AES_N-BA-e-1321 33
The non-calibrated value is given in
9 Weighing functions P6 func
9.1 Turn on/off balance
The weighing scale will carry out a self-test after having been connected to the
power supply and will then automatically go into weighing mode.
To switch off pres the ON/OFF-key; “oFF“, will be displayed. The balance is
now in stand-by mode No warming-up up time is required and it will be ready for
operation immediately after switching on (Press ON/OFF-key).
To switch-off the balance completely, separate balance from pow er suppl y.
9.2 Weighing
A warm-up time is required for stabilisation (see chap. 1).
Check zero display [ ] and set to zero with the help of the TARE key, as
required.
Place the goods to be weighed and close the wind screen doors
Wait until the stability display appears ( ).
Read weighing result.
When an optional printer is connected, the weighing value can be edited.
Printout example (KERN YKB-01N):
Date : 23/07/12
Time : 09:16
User Id : KERN
Project Id : ABC
34 AEJ_N/AES_N-BA-e-1321
Balance Id : 350938
19.999[3] g
brackets in calibrated scales.
9.3 Standard weighing unit
The weighing unit selected here remains even after disconnection from the mains.
Press the UNIT-key repeatedly until the desired weighing unit is shown.
[g] → [mg] → [ct] → [oz] → [ozt] → [dwt] → [t] → [mom]→ [G] → [g]
In balances without type-approval certificate selection is
restricted to options [g] → [mg] → [ct]
AEJ_N/AES_N-BA-e-1321 35
When the balance is unloaded the saved taring value is displayed with
To delete the stored tare value, remove load from weighing pan and
The limit is
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
For returning to weighing mode with set weighing unit, see chap. 8.2.
9.4 Weighing units switch-over
A weighing unit may be changed by pressing the UNIT-key several times:
[g] → [mg] → [ct] → [oz] → [ozt] → [dwt] → [t] → [mom]→ [G] → [g]
Note:
In calibrated model selection is restricted to options [g] → [mg] → [ct].
9.5 Taring
The dead wei ght of a ny wei ghing con tainer may be tar ed aw ay by pr essing a butto n, so that
the followi ng weig hing pr ocedures s how the net w eight of the g oods to be w eighed.
Put vessel of goods to be weighed on weighing plate and close the wind
screen doors.
Wait until the stability display appears ( ), then press TARE. The weight of
the container is now internally saved.
Weigh the goods to be weighed and close the wind screen doors.
Wait until the stability display appears ( ).
Read net weight.
•
negative sign.
•
press TARE.
• The taring process can be repeated any number of times.
reached when the whole weighing range is exhausted.
36 AEJ_N/AES_N-BA-e-1321
Always ensure that all suspended objects are stable enough to hold
Never suspend loads that exceed the stated maximum load (max)
After completing the underfloor weighing the opening on the bottom of
9.6 Underfloor weighing
Objects unsuitable for pl ac ing on the weighing scale due to size or shape may be
weighed with the help of the flush-m ounted platform.
Proceed as follows:
• Switch off the balance.
• Open closing cover at the balance bottom.
• Suspend hook for underflo or w ei g hi ng carefully and completely.
• Place weighing balance over an opening.
• Attach load to hook and carry out weighing procedure.
Fig. 1: Setting up a weighing scale for underfloor weighing
•
the desired goods to be weighed safely (danger of breaking).
•
CAUTION
(danger of breaking)
• Always ensure that there are no persons, animals or objects that
might be damaged underneath the load.
the balance must always be closed (dust protection).
AEJ_N/AES_N-BA-e-1321 37
9.7 Selecting the operating m ode
To enable operating modes that are available to the user without having to go to the
menu every time, go to the “P6 Func” menu. All activated operating modes can be
called directly by pressing the key.
If you wish to have several operating modes callable via the key, select
ALL for a setting.
For selection of accessible operating modes, see chap. 9.7.1.
If you wish to access only one operating mode via the key, select it directly
via the UNIT key. (For instance PcS for piece counting)
38 AEJ_N/AES_N-BA-e-1321
Piece counting see chapter 13.1
For weighing with tolerance range,
see chap. 13.2
For percentage determination, see
chap. 13.3.1
For percentage determination, see
chap. 13.3.2
Confirm selection by pressing the PRINT-key; weighing scale will return to
menu P6.1 FFun.
Either
For density determination solid
matter, see chap. 13.5
For density determination fluids, see
chap. 13.5
For pipette calibration, see chap. 13.6
For dispensing, see chap. 13.4
For how to return to weighing mode after selecting an operating mode, see
chap. 8.2
or
For how to enable accessible operating modes after selecting ALL, see chapter
9.7.1 below.
AEJ_N/AES_N-BA-e-1321 39
9.7.1 Selecting accessible operating modes
Go there to select operating modes that subsequently will be selectable directly via
the key.
YES: turned on
no: turned off
Please repeat this sequence of
operations for any other
operating mode avail abl e.
Confirm your selection by pressing the PRINT-key; balance will return to menu.
Return to weighing mode, see chap. 8.2.
40 AEJ_N/AES_N-BA-e-1321
Standard – normal ambient conditions
10 Balance settings “P3 rEAd”
This menu block can be used to adapt the behaviour of the weighing scale to your
requirements (such as ambient conditions, special weighing procedures).
10.1 Filter - adaptation to ambient conditions and weighing options
Slow - The balance reacts slowly and in a
robust manner, busy set-up location
Fast - The balance reacts quickly and in a
sensitive manner, quiet set-up location.
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 41
Standstill control fast + exact –
10.2 Rest position control display – Adaptation of weighing speed
quiet set-up location
Rest position control fast
Very quiet setup location
Rest position control accurate
Unbalanced installation site
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
42 AEJ_N/AES_N-BA-e-1321
10.3 Auto Zero
This function is used to tare small variations in weight automatically.
In the event that small quantities are removed or added to the material to be
weighed, incorrect weighing results can be displayed due to the “stability
compensation“. (e.g. slow flow of liquids from a container placed on the balance,
evaporating processes).
When apportioning involves small variations of weight, it is advisable to switch off this
function.
AutoZero turned on
AutoZero turned off
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 43
shows last decimal place
10.4 Hide last decimal place
Readability may be reduced by 1 digit on the weighing balances, as required. The
last decimal place will be rounded and removed from the display.
Confirm your selection by pressing the PRINT-key; weighing scale will return to
Return to weighing mode, see chap. 8.2.
44 AEJ_N/AES_N-BA-e-1321
hiding last decimal place
last decimal place will only be
shown for stable weighing values
menu.
RAPID = NO
Standard settings for all weighing options and normal loads
see chap. 10.1 / P3.2 CONF, see chap.10.2)
RAPID = YES
Parameters for dispensing are set aut om at ically.
The weighing scale automatically works at increased weighing speed.
10.5 Dispensing mode “RAPID”
This setting is used to automatically adjust all parameters required for dispensing.
In this way you do not have to call and change each menu item individually.
Menu settings:
The weighing scale works according to the parameters set (P3.1 AUE,
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 45
On = background illumination
11 Further useful functions “P7 othEr“
Here, you can set the parameters that influence the operation of the balance, such as
background lighting and key sounds.
11.1 Display background illum ination
switched on.
Aut = Backlighting automatically
switched off 10 seconds after
achieving stable weighing v alu e.
OFF = background illumination
switched off.
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
46 AEJ_N/AES_N-BA-e-1321
11.2 Acoustic signal for ke y operation
On = acoustic signal turned on
OFF = acoustic signal turned off
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 47
11.3 Print weighing settings
All weighing scale settings are issued via the
RS232 interface.
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
48 AEJ_N/AES_N-BA-e-1321
12 GLP/ISO log “P2 GLP“
Quality assurance systems require logs of weighing results as well as of correct
adjustment of the balance stating date and time and balance identification. The
easiest way is to have a printer connected.
The content of the data output is determined in menu “P2 GLP“. All parameters set to
“YES“ will be issued.
Examples:
P2 GLP
P2.1 uSr | max. 8 digits
P2.2 PrJ | max. 8 digits
P2.3 Ptin | YES
P2.4 PdAt | YES
P2.5 PuS | YES
P2.6 PPrJ | YES
P2.7 Pid | YES
P2.8 PFrn | YES
Definition of a standard log:
• P2.1 USr – Enter user name
+
Press the UNIT-key and the next menu item “P2.2 PrJ“, will appear.
AEJ_N/AES_N-BA-e-1321 49
• Selection of the number
• Selection of the number
• Increasing the value for selected numeral or number
• Decreasing the value for selected numeral or number
Input via cursor keys
to be changed to the left
(the respective active
position flashes)
to be changed to the
right (the respective
active position flashes)
Overview data input / data output:
Examples:
Data input Data output
1. Upper case characters
2. Lower case characters
50 AEJ_N/AES_N-BA-e-1321
OP1_WILK
op1_wilk
• P2.2 PrJ – Enter project name
Press the F-key; the first digit is flashing.
Press the navigation keys to enter project name or number (max. 8 digits).
Confirm settings by pressing the PRINT key. Weighing balance returns to menu.
Press the UNIT-key and the next menu item “P2.3 Ptin”, will appear.
• P2.3 tin – Issue time
Press the F-key, current setting is flashing
Use the UNIT-key to select among the following settings:
no = Do not display time
YES = Display time
Confirm settings by pressing the PRINT key. Weighing balance returns to menu.
Press the UNIT-key and the next menu item „P2.4 PdAt“ will appear.
• P2.4 PdAt – Display date
Press the F-key; current setting is flashing.
Use the UNIT-key to select among the following settings:
no = Do not display date
YES = Display date
Confirm settings by pressing the PRINT key. Weighing balance returns to menu.
Press the UNIT-key and the next menu item „P2.5 PUSr“ will appear.
• P2.5 PUSr – Display user
Press the F-key; current setting is flashing.
Use the UNIT-key to select among the following settings:
no = Do not display user
YES = Display user
Confirm settings by pressing the PRINT key. Weighing balance returns to menu.
Press the UNIT-key; the next menu item “P2.6 PPrJ“ used to display the date
appears.
• P2.6 6 PPrJ – Display project
Press the F-key; current setting is flashing.
Use the UNIT-key to select among the following settings:
no = Do not display project
YES = Display project
Confirm settings by pressing the PRINT key. Weighing balance returns to menu.
Press the UNIT-key and the next menu item „P2.7 PId“ will appear.
AEJ_N/AES_N-BA-e-1321 51
P2.8 PFr: YES
P2.8 PFr: no
---------------------------------------
----------------------------------------
Using broken line at
protocol begin and end.
• P2.7 PId – Display serial number
Press the F-key; current setting is flashing
Use the UNIT-key to select among the following settings:
no = Do not display date
YES = Display date
Confirm settings by pressing the PRINT key. Weighing balance returns to menu.
Press the UNIT-key and the next menu item “P2.8 PFr” will appear.
• P2.8 PFr – Frame Protocol
Press the F-key; current setting is flashing.
Use the UNIT-key to select among the following settings:
no = Do not frame protocol
YES = Frame protocol
Example:
Date :20.03.12
Time :11.31.12
UserID :Mustermann
Balance ID :180151
19.3406 g
Date :20.03.12
Time :11.31.12
UserID :Mustermann
Balance ID :180151
19.3406 g
Without broken lines
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
52 AEJ_N/AES_N-BA-e-1321
• Weighing
• Parts counting
• Weighing with tolerance range
• Percentage determination
Reference defining by weighing
• Percentage determination
Numeric reference entry
• Density determination solid matter
• Density determination fluids
• Pipette calibration
• Dosing
Further functions are triggered with the help
13 Operation Modes
<bASic>
<PcS>
<HiLo>
<PrcA>
<PrcB>
<d_Co>
<d_Li>
<PiPEt>
<Fill>
Calling operating modes (See also chap.9.7):
The first function “F1 basic“ appears.
of or key
AEJ_N/AES_N-BA-e-1321 53
13.1 Parts counting
Before the balance can count parts, it must know the average part weight (i.e.
reference). Proceed by putting on a certain number of the parts to be counted. The
balance determines the total weight and divides it by the number of parts (the socalled reference quantity). Counting is then carri ed out on the basis o f the calcul a ted
average piece weight.
As a rule:
The higher the reference quantity the higher the counting exac tness .
• Call add-up function
Current reference number of
pieces is displayed.
Press the UNIT-key to select the desired reference number of pieces,
selectable options include 10, 20, 50 or free.
• Reference piece number 10, 20 or 50
Confirm your selected reference number of pieces by pressing the PRINT-key
(such as 20).
54 AEJ_N/AES_N-BA-e-1321
Make reference
Place as many pieces to add-up as required by the set reference piece number.
Tare weighing container
Confirm reference
Remove reference wei ght. The balance is now in parts counting mode counting all
units on the weighing pan.
AEJ_N/AES_N-BA-e-1321 55
• for selection ”optional reference piece number“ FrEE
Select the place to be changed by pressing the F-key
Select the digit by pressing the UNIT-key
Confirm the entered reference piece number by pressing the PRINT-key
“LoAd“ appears on the display.
− Place as many counting parts on the balance as the set reference quantity
requires, confirm by pressing the PRINT key.
Note:
If there is no load on the weighing plate when the PRINT-key is pressed,
“Er5 outr“ will appear briefly on the display before the display of the
balance returns automatically to weighing mode.
Remove reference weight. The balance is now in parts counting mode counting
all units on the weighing plate.
56 AEJ_N/AES_N-BA-e-1321
• Return to weighing mode
AEJ_N/AES_N-BA-e-1321 57
lo
Goods to be weighed below tolerance limit
Goods to be weighed within tolerance
range
Hi
Goods to be weighed above tolerance limit
0.0000 �
g
Lo
Hi
ok
13.2 Weighing with tolerance range
For weighing with tolerance ranges you can enter individual upper and lower limits.
For tolerance controls such as dosaging, apportioning or sorting the scale will display
violated upper or lower limits and show the tolerance tag.
The triangular tolerance marker () in the upper part of the display shows whether
the goods to be weighed are within the two tolerance limits.
The tolerance marker is only in operation during operating mode tolerance weighing;
it is otherwise not visible.
The tolerance marker provides the following information:
ok
58 AEJ_N/AES_N-BA-e-1321
000.0000
g
008.8900
g
• Call function
The display for entering the lower limit
value will appear.
• Enter lower limit “Lo“
LQ
Select the digit to be changed by pressing the F-key; each digit currently active
will be flashing.
Select the digit by pressing the UNIT-key
Confirm by pressing the PRINT key. The display for entering the upper limit
value will appear.
AEJ_N/AES_N-BA-e-1321 59
000.0000
g
009.5500
g
• Enter upper limit „Hi“
HKK
Select the digit to be changed by pressing the F-key; each digit currently active
will be flashing.
Select the digit by pressing the UNIT key
Confirm by pressing the PRINT key
From now the balance is in checkweighing mode. Put on goods to be weighed,
tolerance control is started With the help of the indicator check if the weighed goods
are under, inside or over the default tolera nce.
Note:
If invalid values are entered such as lower tolerance limit greater than upper
tolerance limit, the balance will issue the error message “Er8 outr“ and return
automatically to weighing mode.
• Return to weighing mode
60 AEJ_N/AES_N-BA-e-1321
13.3 Percent determination
Percent determination allows weight display in percent, in relation to a reference
weight. The reference weight can either be determined by weighing (F4 PrcA) or
entered numerically (F4 Prcb).
13.3.1 Determining the reference weight by weighing (function F4 PrcA)
100 % equals placing.
Confirm by pressing the PRINT-key and the weight will be adopted as reference
(100%).
Remove reference weight; from here the weight of load is shown in percent
based on the reference weight.
AEJ_N/AES_N-BA-e-1321 61
appears.
13.3.2 Numeric entry of reference weight (function F4 Prcb)
Display for entering reference (= 100%)
Enter percentage of your choice, using cursor keys.
Select the digit to be change by pressing the F-key; each time the currently
active digit will be blinking.
Select the digit by pressing the UNIT key
Confirm by pressing the PRINT key
From now on the weight of the load will be shown in percent based on the reference
weight.
62 AEJ_N/AES_N-BA-e-1321
Return to weighing mode:
Press repeatedly.
AEJ_N/AES_N-BA-e-1321 63
13.4 Dosing
The weighing scale works at an increase display speed when dispensing mode is
enabled (factory setting).
However, please keep in mind that the weighing scale reacts very sensitively to
ambient conditions.
To disable the setting “P6 Func P6.1 FFun All” set function “F9 Fill” to “n”; see
chap. 9.7
• Enabling dispensing mode
Press repeatedly.
• Return to weighing mode
Indicator displays the current dispensing mode.
Press repeatedly.
Indicator expires.
64 AEJ_N/AES_N-BA-e-1321
13.5 Determining the densit y of solid matte r a nd f luids
For determining density we recommend that you work with the optionally available
density kit KERN AES-A01N. This contains all the accessories and aids required for
easy and precise density determination.
For instructions please see the operating instructions enclosed with the density kit.
Fig.: KERN AES-A01N
No. Description
1 Platform for glass beaker 8 H ook for pl um m et
2 Frame 9 Sample di sh
3 Glass sinker 10 Wire
4 Beaker 11 Filter bowl
5 Holder for thermo met e r 12 Additional weights
6 Thermometer 13 Additional frame (tray for sample
dishes/plummets)
7 Wire 14 Immersion basket for density < 1g/cm3
AEJ_N/AES_N-BA-e-1321 65
measurements
Set t
Test temperature, selectable from 0.4 – 25.5°C
Set P
Air pressure test chamber, selectable from 800 – 1050 hPa
Set h
Air humidity test chamber, selectable from 10 – 95 %
be tested:
[µl], depending on whichever is the larger.
V
1/2
About 50 % of the nominal volume [µl]
V1
Nominal volume [µl]
13.6 Pipette calibration
13.6.1 Entering parameters
Prior to measuring you will have to enter the parameters below.
Parameters Description
Set n Number of measurements per test volume, selectable from 5 -15
For devices with a fixed volume, test volume equals nominal volume.
For devices with variable volume, the following three volumes need to
V0 The lower limit for the effective volume or 10 % of the nominal volume
66 AEJ_N/AES_N-BA-e-1321
13.6.2 Carry out series of measurements for test volume V0
After entering all parameters (See chap. 13.6.1), position the weighing vessel,
wait for the stability display to appear, then tare by pressing the TARE-key; P1
V0 will appear, followed by Place 1.
1. Dispense the test fluid (such as dis ti l led w ater ) into the weighing vessel of
conduit “V0”.
2. Wait for stability display, then press the PRINT button. Place 2 followed by
the current weight display will appear.
3. Tare, by pressing the TARE-key.
Repeat this test cycle (steps 1 -3) as often as s et in “Set n”
(see chap. 13.6.1).
After the last test cycle has been confirmed, a display announcing the start of
the second series of measurements “P2 V
13.6.3, will appear.
”, followed by Place 1, see chap.
1/2
AEJ_N/AES_N-BA-e-1321 67
13.6.3 Carry out series of measurements for test volume V
1/2
Carry out the second series of measurements by following the same sequence
of operations as the first, see chap. 13.6.2
1. Dispense the test fluid (such as distilled water) into the weighing vessel of
conduit “V
” to be measured.
1/2
2. Wait for stability display, then press the PRINT button. Place 2 followed by
the current weight display will appear.
3. Tare, by pressing the TARE-key.
Repeat this test cycle (steps 1 -3) as often as set in “Set n”
(See chap. 13.6.1).
After the last test cycle has been confirmed a display announcing the start of
the third series of measurements “P2 V1”, followed by Place 1, see c hap.
13.6.4, will appear.
68 AEJ_N/AES_N-BA-e-1321
13.6.4 Carry out series of measurements for test volume V1
Carry out the third series of measurements by following the same sequence of
operations as the previous.
1. Dispense the test fluid (such as distilled water) into the weighing vessel of
conduit “V1” to be measured.
2. Wait for stability display, then press the PRINT button. Place 2 followed by
the current weight display will appear.
3. Tare, by pressing the TARE-key.
4. Repeat this test cycle (steps 1 -3) as oft en as s et in “Set n”
(See chap. 13.6.1).
5. After the last test cy cle has been co nfirmed by pr essing the PRINT-key a protocol
will be issued vi a the RS232 int erface. See pr intout ex ample below.
AEJ_N/AES_N-BA-e-1321 69
[µl], depending on whichever is the larger.
V
1/2
About 50 % of the nominal volume [µl]
V
max
(V1)
Nominal volume [µl]
Va
Arithmetic mean from meas ur e men t seri es
Es
Systematic measurement deviat ion
Sr
Standard Deviation
Printout example “calibration data“:
V
min (V0
) The lower limit for the effective volume or 10 % of the nominal volume
70 AEJ_N/AES_N-BA-e-1321
• Manually after pressing the PRINT key
14 Data output RS 232 “P4 Print“
You can print weighing data automatically via the RS 232C interface or manually
pressing the PRINT button via the interface according to the setting in the menu.
This data exchange is asynchronous using ASCII - Code.
The following conditions must be met to provide successful communication between
the weighing system and the printer.
• Use a suitable cable to connect the display unit to the interface of the printer.
Faultless operation requires an adequate KERN interface cable.
• Communication parameters (baud rate, bits and parity) of display unit and
printer must match.
14.1 Technical data
Connection 9 pin d-subminiature bushing
Pin 2: Receive data
Pin 3: Transmit data
Pin 5: Signal ground
Baud rate 2400/4800/9600/19200 selectable
Parity 8 bits, no parity / 1 stop bit
Transfer
modes
• Automatically according to stability display
• Continuously, according to setting
• On request by external device (For remote control commands,
see chap. 14.6)
AEJ_N/AES_N-BA-e-1321 71
Balance
2 (RxD)
3 (TxD)
4 (DTR)
5 (GND)
6 (DSR)
7 (RTS)
8 (CTS)
PC 25 poles
PC 9 poles
Balance
Balance
Balance
Printer
14.2 Interface cable
72 AEJ_N/AES_N-BA-e-1321
P4.1 bAud
2400 bit/s
4800 bit/s *
9600 bit/s
19200 bit/s
no*
Continuous output disa bl ed in stan dard
Output requires key operation
YES
Continuous output in standard weighing unit
no*
Continuous output disabled in current weighing
unit, output requires key operation
YES
Continuous output in current weighing unit
no*
Manual issue after pressing the PRINT key.
YES
Automatic issue of first stable weighing value
4. Place next weight.
P4.5 PStb
type approval certificate
P4.6 Lo
0.01*
Input minimum weight for automatic output:
value.
14.3 Menu settings “P4 PRINT“
Menu call “P4 PRINT“, see chap. 8.1.
Menu overview
Function Settings Description of options
Transfer speed
P4.2 CntA
P4.3 Cntb
P4.4 rEPL
Locked in models with
weighing unit,
Sequence of operations:
1. Taring
2. Place weight, issue of first stable weighing
value
3. Renewed output only possible after weight
was removed. Prerequisite: Display +/- 50
display steps from zero.
no Output even for unstable weighing value
YES* Output for stable weighing value only
Weighing value issued automatically if current
weighing value exceeds entered minimum
value. The next weighing value will not be
issued unless the weighing value has
meanwhile dropped below the entered weighing
Factory settings are marked by *.
AEJ_N/AES_N-BA-e-1321 73
1. Baud rate
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
74 AEJ_N/AES_N-BA-e-1321
2. Continuous output in standard weighing unit
Confirm your selection by pressing the PRINT-key; balance will return to menu.
Return to weighing mode, see chap. 8.2.
3. Continuous output in current weighing unit
Confirm your selection by pressing the PRINT-key; weighing scale will return to
menu.
Return to weighing mode, see chap. 8.2.
AEJ_N/AES_N-BA-e-1321 75
4. Set manual or automatic output
Confirm your selection by pressing the PRINT-key; balance will return to menu.
Return to weighing mode, see chap. 8.2.
5. Set output stable/instable weighing values
Confirm your selection by pressing the PRINT-key; balance will return to menu.
Return to weighing mode, see chap. 8.2.
76 AEJ_N/AES_N-BA-e-1321
6. Set minimum weight for automatic output
AEJ_N/AES_N-BA-e-1321 77
14.4 Printout examples (KERN YKB-01N)
Stable weighing value
Instable weighing value
Negative weighed value
Positive weighing value
Overload
Percent determination
Parts counting
19.9994 g
? 29.6343 g
- 19.9997 g
19.9994 g
^
24.995 %
10 pcs
78 AEJ_N/AES_N-BA-e-1321
1 2 3
4 - 12
13
14 - 16
17
18
Stability display
Signs
Weight value
Unit
14.5 Output log
14.5.1 Issue after pressing the PRINT ´button
Stable or instable weighing values are sent according to menu settings “P4.5” PStb
(see chap. 14.3)
Data record format:
Stability display
Blank
Signs
Weight value
Blank character for stable value
? For instable value
^ for excess load
v for underload
Blank character for positive value
Minus sign for negative value
9 signs, right justified
3 signs, left justified
Unit
CR
LF
AEJ_N/AES_N-BA-e-1321 79
1 - 3 4 5 6 7
8 - 16
17
18 - 20
21
22
Instruction:
1. up to 3 signs
Stability display
Blank character for stable value
? For instable value
^ for excess load
v for underload
Signs
Blank character for positive value
Minus sign for negative value
Weight value
9 signs, right justified
Unit
3 signs, left justified
14.5.2 PC controlled output
Response message of balance after remote instruction was sent:
XX_ Instruction:
XX_A CR LF Instruction accepted; will be executed
XX_ I CR LF Instruction received; impossible to carry out
XX_^ CR LF Instruction received but time overflow error occurred
XX_v CR LF Instruction received, but insufficient load
XX_E CR LF Error during execution, timeout for stable weighing value
exceeded
Data record format:
Remote control
command
Blank Stability display
Signs
Blank
Weight value
Blank
Unit
CR
LF
14.5.3 Output of date/time
The display of date and time can be enabled under menu item “P2 GLP”
(see chap. 12):
• PdAt – yes
• Ptin - yes
80 AEJ_N/AES_N-BA-e-1321
14.6 Remote control instructi ons
Commands Function
T CR LF Taring
Z CR LF Zeroing
SI CR LF Send weighing value in standard weighing unit immediately
S CR LF Send stable weighing value in standard weighing unit
SU CR LF Send stable weighing value in current weighing value
SUI CR LF Send weighing value immediately in current weighing unit
C1 CR LF Start continuous output in standard weighing unit
C0 CR LF Stop continuous output in standard weighing unit
CU1 CR LF Start continuous output in current weighing unit
U0 CR LF Stop continuous output in current weighing unit
In the case of faulty entries the weighing balance generates feedback
message “ES CR LF”.
AEJ_N/AES_N-BA-e-1321 81
Before any maintenance, cleaning and repair work disconnect the
appliance from the oper ati ng v ol tag e.
15 Service, maintenance, disposal
15.1 Cleaning
Please do not use aggressive cleaning agents (solvents or similar agents), but a
cloth dampened with mild soap suds. Ensure that no liquid penetrates into the
device. Polish with a dry soft cloth.
Loose residue sample/powder can be removed carefully with a brush or manual
vacuum cleaner.
Spilled weighing goods must be removed immediately.
15.2 Service, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Ensure that the balance is regularly calibrated, see chap. Testing instruments
control.
15.3 Disposal
Disposal of packaging and appliance must be carried out by operator according
to valid national or regional law of the location where the appliance is used.
82 AEJ_N/AES_N-BA-e-1321
The balance is not switched on.
Power supply interrupted.
Adjustment is no longer correct.
16 Instant help
Possible causes of errors:
In case of an error in the program process, briefly turn off the balance and disconnect
from power supply. The weighing process must then be restarted from the beginning.
Fault Possible cause
The displayed weight does
not glow.
The displayed weight is
permanently changing
The weighing result is
obviously incorrect
•
• The mains supply connection has been interrupted
(mains cable not plugged in/ faul ty).
•
• Draught/air movement
• Glass doors not closed
• Table/floor vibrations
• Weighing pan has contact with other objects.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
• The display of the balance is not at zero
•
• The balance is on an uneven surface.
• Great fluctuations in temperature.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
Automatic adjustment
carried out frequently.
No data transfer between
printer and balance.
The menu setting cannot be
changed.
• Severe temperature variations in the room or the
instrument
• Communication settings are wrong.
• Menu item is locked for models with type approval
certificate.
AEJ_N/AES_N-BA-e-1321 83
Value outside allowed range
Reference weight = 0
Entry exceeding permitted range
for instance during tolerance control: entry upper limit<lower limit
16.1 Error messages
Er1 Hi Initial weight error
Er2 nuLL Value below allowed range
Er3 FuL1 Value above allowed range
Er4 FuL2 Weighing range exceeded
Er5 rout
Er7 tout Disconnecting time too short
Er8 outr
Er9 Lock Function blocked
Er10 cal Adjustment error e.g. incorrect adjustment weight
e.g. tare value <= 0,
84 AEJ_N/AES_N-BA-e-1321
KERN & Sohn GmbH
D-72322 Balingen-Frommern
E-Mail: info@kern-sohn.de
Tel: 0049-[0]7433- 9933-0
Internet: www.kern-sohn.de
D
Konformitätserklärung
Wir erklären hierm it, dass das Produkt, auf das sich diese Erk lärung bezieht,
mit den nachstehenden Normen übereinstimmt.
GB
Declaration of
conformity
We hereby declare that the product to which this dec laration refers c onforms
with the following standards.
CZ
Prohlášení o
shode
Tímto prohlašujem e, že v ýrobek , k terého se toto proh lášení týká , je v souladu
s níže uvedenými normami.
E
Declaración de
conformidad
Manifestamos en la presente que el producto al que se refiere esta
declaración está de acuerdo con las normas siguientes
F
Déclaration de
conformité
Nous déclarons avec cela res ponsabilité que le produit, auquel se r apporte la
présente déclaration, est conforme aux normes citées ci-après.
I
Dichiarazione di
conformitá
Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si
riferisce è conforme alle norme di seguito citate.
NL
Conformiteitverklaring
Wij verklaren hiermede dat het product, waarop deze verklaring betrekking
heeft, met de hierna vermelde normen overeenstemt.
P
Declaração de
conformidade
Declaramos por meio da presente que o produto no qual se refere esta
declaração, corresponde às normas seguintes.
PL
Deklaracja
zgodności
Niniejszym oświadczamy, że produkt, którego niniejsze oświadczenie dotyczy,
jest zgodny z poniższymi normami.
RUS
Заявление о
соответствии
Мы заявляем, что продукт, к которому относится данная декларация,
соответствует перечисленным ниже нормам.
Signature
Datum
26.03.2013
Ort der Ausstellung
72336 Balingen
Albert Sauter
KERN & Sohn GmbH
Geschäftsführer
Managing director
KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0
Fax +49-[0]7433/9933-149, E-Mail: info@kern-sohn.com, Internet: www.kern-sohn.com
17 Declaration of conformity
Postfach 4052
Fax: 0049-[0]7433-9933-149
Declaration of conformity
EC-Konformitätserklärung EC-Declaration of -Conformity
EC-
Déclaration de conformité EC-Declaración de Conformidad
EC-Dichiarazione di conformità EC-Conformiteitverklaring
EC- Declaração de conformidade EC- Prohlášení o shode
EC-Deklaracja zgodności EC-Заявление о соответствии
Electronic Balan ce: KERN AEJ_NM / AES_N
EU Directive Standards
2004/108/EC EN 61326-1 : 2006
2006/95/EC EN 61010-1: 2010
Date
Place of issue
AEJ_N/AES_N-BA-e-1321 85
Signatur
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