KERN ITT User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [email protected]
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instruction
Platform scale
KERN ITT, KMT-TM
Version 2.1
11/2007
GB
ITT-BA-e-0721
ME-Nr.: 22017083

Table of contentsITT-BA-e-0720
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Table of contents
Page
1 Introduction .....................................................................................5
1.1 Safety instructions .............................................................................5
1.2 Description ......................................................................................6
1.3 Putting into operation ......................................................................10
2 Operation ......................................................................................12
2.1 Switching on and off .......................................................................12
2.2 Zeroing / Zero point correction ..........................................................12
2.3 Simple weighing .............................................................................12
2.4 Weighing with tare ..........................................................................13
2.5 Displaying the capacity available ......................................................15
2.6 Dynamic weighing ..........................................................................15
2.7 Weighing-in to a target weight and checkweighing .............................16
2.8 Working with identifications .............................................................18
2.9 Printing results ...............................................................................18
2.10 Displaying info ...............................................................................19
2.11 Switching scales .............................................................................19
2.12 Totalising .......................................................................................20
2.13 Cleaning ........................................................................................21
3 Counting .......................................................................................22
3.1 Counting parts into a container .........................................................22
3.2 Counting parts out of a container ......................................................23
3.3 Counting with variable reference quantity ...........................................23
3.4 Counting with minimum accuracy ....................................................23
3.5 Reference optimization ....................................................................24
3.6 Counting with automatic reference determination ................................24
3.7 Counting with a known average piece weight ....................................24
3.8 Counting by calling up a saved average piece weight .........................25
3.9 Counting by calling up a saved target quantity ...................................26
3.10 Counting with two scales .................................................................27
4 Settings in the menu ......................................................................29
4.1 Operating the menu ........................................................................29
4.2 Overview .......................................................................................31
4.3 Scale settings (SCALE) ....................................................................34
4.4 Application settings (APPLICATION) ..................................................38
4.5 Terminal settings (TERMINAL) ..........................................................42
4.6 Configuring interfaces (COMMUNICATION) .........................................43
4.7 Diagnosis and printing out of the menu settings (DIAGNOS) ................47
5 Interface description ......................................................................49
5.1 SICS interface commands ................................................................49
5.2 TOLEDO Continuous mode ..............................................................52

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6 Event and error messages ..............................................................54
7 Technical data and accessories ......................................................56
7.1 Technical data ...............................................................................56
8 Appendix ......................................................................................59
8.1 Table of Geo Values ........................................................................59
8.2 Sample protocols ...........................................................................62

IntroductionITT-BA-e-0720
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1 Introduction
1.1 Safety instructions
DANGER!
Electric shock hazard!
▲Always pull out the mains plug before any work on the device.
DANGER!
Electric shock hazard if the mains cable is damaged!
▲Check the mains cable for damage regularly and replace it immediately if it is dam-
aged.
▲On the rear side of the device, maintain a clearance of at least 3 cm in order to
prevent the mains cable bending too much.
CAUTION!
On no account open the device!
The warranty is void if this stipulation is ignored. The device may only be opened by
authorized persons.
CAUTION!
Do not use the scales in hazardous areas!
Our product range includes special devices for hazardous areas.
Disposal
➜Observe the valid environmental regulations when disposing of the scale.
If the device has a rechargeable battery:
The battery contains heavy metals and therefore must not be disposed of with normal
waste.
➜Observe the local regulations for disposing of environmentally hazardous materi-
als.

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Note Use with foodstuffs
Parts coming into contact with foodstuffs have smooth surfaces and are easy to clean.
The materials used do not splinter and are free of harmful substances.
With foodstuffs, it is recommended to use the supplied protective cover.
➜Clean the protective cover regularly and carefully.
➜Replace damaged or very dirty protective cover immediately.

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1.2 Description
1.2.1 Overview
1Display
2Specifications, rating
plate
3Numerical keys
4Function keys
1Power supply
connection
2Weighing platform
connection
3Optional interface
4RS232 interface
4321

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1.2.2 Display
17-segment display, 7 digits, with decimal point
2Active interface
3Symbol for displaying gross and net values
4Active scale
5Weighing range display
6Battery charge level; only present on scales with a battery
7Weight units
8Selected reference quantity
9Symbols for optimizing the average piece weight and accumulating
10 Symbol for dynamic weighing
11 Graphic display of the weighing range, display for checkweighing
12 Stability monitor (goes out when a stable weight value is reached)
13 Sign
14 Identification for changed or calculated weight values, e.g. higher resolution,
minimum weight not reached
Opt Auto
Com 231231
Pcs
%
kg
10010050500
%
134 5
6
7
8
91011
12
13
14
OK
2

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1.2.3 Keypad
Main functions
Additional functions
Key Function in operating mode Function in the menu
Switching device on / off, abort To the last menu item –End-
Setting scale to zero Scrolling back
Taring scale Scrolling forward
Transfer key
Long key press: Calling up menu
Activating menu item
Accepting selected setting
Key Function
Info key: Calling up additional information, e.g. gross weight, average piece weight,
higher resolution ...
Switching the scale
Switching between weight value and number of pieces
Weighing in reference or defining average piece weight numerically
Determining average piece weight from 10 pieces
Determining average piece weight from any number of pieces
Entering identification
Memory
Sign; adding/subtracting
Clear key
Keys 0 ... 9 and decimal
point
Numerical keys for entering weight values, identifications ...

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1.3 Putting into operation
1.3.1 Connecting the power supply
CAUTION!
Before connecting the scale to the mains, check whether the voltage value printed on
the rating plate corresponds with the local mains voltage.
▲Never connect the device if the voltage value printed on the rating plate is different
to the local mains voltage.
➜Plug the mains plug into the socket.
After connection, the device performs a self-test. When the zero display appears,
the device is ready to weigh.
➜Calibrate the device in order to obtain the greatest possible precision, see
Section 4.3.2.
Note The battery’s charging capacity can be reduced under continuous mains operation.
➜To maintain the charging capacity, after a maximum of 4 weeks discharge the bat-
tery completely before recharging it.
1.3.2 Monitoring the test substances
The metrology features of the balance and any possible available adjusting weight
must be checked at regular intervals within the scope of quality assurance. For this
purpose, the answerable user must define a suitable interval as well as the nature and
scope of this check. 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. Test weights and balances can be adjusted quickly and at
a reasonable price in KERN’s accredited DKD calibration laboratory (return to national
normal).
Terminals with AccuPac can work independently from the mains for approximately
30 hours in normal operation. A prerequisite for this is that the background lighting
is switched off and that no peripheral devices are connected.
The battery symbol indicates the present charging level of the battery. 1 segment cor-
responds to approx. 25 % capacity. When the symbol flashes the battery must be
charged (min. 4 hours). The charging period is extended if work is continued during
charging. The battery is protected against overcharging.

1.3.3 Adjustment
General:
According to the EU guideline 90/384/EEC balances must be verified officially if they
are to be used as follows (legally regulated area):
•For commercial transactions if the price of goods is determined by weighing
•For the production of medines in pharmacies as well as for analyses in the medical
and pharmaceutical laboratory
•For official purposes
•For the production of finished packages
In case of doubt, please contact your local office of weights and measures.
Verification Information:
An EU qualification approval is available for those balances marked as appropriate for
verification in the technical data. In the event that the balance is applied in an area
subject to verification as described above, it must be officially verified and re-verified
at regular intervals.
Re-verification of a balance is carried out in compliance with the respective legal pro-
visions of the states. The term of verification validity for balances in Germany, for
example, is normally 2 years.
The legal provisions of the country of use are to be observed.

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2 Operation
2.1 Switching on and off
Switching on ➜Press .
The scale conducts a display test. When the weight display appears, the scale is
ready to weigh.
Switching off ➜Press .
Before the display goes out, -OFF- appears briefly.
2.2 Zeroing / Zero point correction
Zeroing corrects the influence of slight changes on the load plate.
Manual 1. Unload scale.
2. Press .
The zero display appears.
Automatic In the case of scales that cannot be certified, the automatic zero point correction can
be deactivated in the menu or the amount can be changed.
As standard, the zero point of the scale is automatically corrected when the scale is
unloaded.
2.3 Simple weighing
1. Place weighing sample on scale.
2. Wait until the stability monitor goes out.
3. Read weighing result.

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2.4 Weighing with tare
2.4.1 Taring
➜Place the empty container on the scale and press .
The zero display and the symbol NET appear.
The tare weight remains saved until it is cleared.
2.4.2 Clearing the tare
➜Unload scale and press .
The symbol NET goes out, the zero display appears.
or
➜Press .
The symbol NET goes out, the gross weight appears in the display.
If A.CL-tr is activated in the menu, the tare weight is automatically cleared as soon
as the scale is unloaded.
2.4.3 Automatic taring
Prerequisite
A-tArE is activated in the menu, the symbol Tflashes in the display.
➜Place the container or packaging material on the scale.
The packaging weight is automatically saved as the tare weight, the zero display
and the symbol NET appear.
2.4.4 Numerical tare weight entry
1. Enter the known tare weight numerically and press .
The entered weight is automatically saved as the tare weight, the symbol NET and
the tare weight with a minus sign appear.
2. Place the filled container on the scale.
The net weight appears in the display.

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2.4.5 Taring by calling up a saved tare value
ITT have a total of 100 memory locations for frequently used tare values, average
piece weights, target weights and target quantities. In the factory setting, the memory
locations 01 to 40 are reserved for tare values. The saved tare values are also pre-
served when the scale is switched off.
Saving tare weights
1. Determine the tare weight in one of the ways described earlier.
2. Enter the memory location number (factory setting: 1 ... 40) and keep
pressed until the confirmation appears in the display, e.g. tArE.12.
Note If a tare weight had already been saved under the selected memory location, the mes-
sage rEPLACE appears in the display.
•To save the new tare weight, press . The old tare weight is overwritten.
•To abort the save process, press . The previous memory location assignment
remains valid.
Calling up tare weights
➜Enter the number of the memory location with the required tare weight (factory set-
ting: 1 ... 40) and press briefly.
The selected tare value is loaded from the memory and appears briefly in the dis-
play. The scale tares with the selected tare value and then displays the current net
weight.
Clearing saved tare weights
1. Enter the number of the memory location with the tare weight to be cleared (factory
setting: 1 ... 40) and press briefly.
The saved tare value is displayed.
2. Press within 2 seconds.
CLEArED briefly appears in the display. The saved tare value is cleared.

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2.4.6 Chain tare
Prerequisite
The tare function CHAIn.tr is activated in the menu.
With this function it is possible to tare several times if, for example, cardboard is
placed between individual layers in a container.
1. Place the first container or packaging material on the scale and press .
The packaging weight is automatically saved as the tare weight, the zero display
and the symbol NET appear.
2. Weigh the weighing sample and read/print out the result.
3. Place the second container or packaging material on the scale and press
again.
The total weight on the scale is saved as the new tare weight. The zero display
appears.
4. Weigh the weighing sample in the second container and read/print the result.
5. Repeat the last two steps for other containers.
2.5 Displaying the capacity available
The scale has a graphic display of the scale capacity available. The bar indicates how
many per cent of the scale capacity is already occupied and what capacity is still
available. In the example, approx. 65 % of the scale capacity is occupied.
2.6 Dynamic weighing
With the dynamic weighing function, it is possible to weigh restless weighing samples
such as live animals. If this function is activated, the symbol appears in the dis-
play.
With dynamic weighing, the scale calculates the mean value from 56 weighing oper-
ations within 4 seconds.
With manual start Prerequisite
AVErAGE -> MAnuAL is selected in the menu.
The weighing sample must be heavier than 5 scale divisions.
1. Place the weighing sample on the scale and wait until it has stabilized.
2. Press to start dynamic weighing.
During dynamic weighing, horizontal segments appear in the display, and the
dynamic result is then displayed with the symbol *.
3. Unload the scale to be able to start a new dynamic weighing operation.

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With automatic start Prerequisite
AVErAGE -> AUtO is selected in the menu.
The weighing sample must be heavier than 5 scale divisions.
1. Place the weighing sample on the scale.
The scale starts the dynamic weighing automatically.
During dynamic weighing, horizontal segments appear in the display, and the
dynamic result is then displayed with the symbol *.
2. Unload the scale to be able to perform a new dynamic weighing operation.
2.7 Weighing-in to a target weight and checkweighing
The terminal allows the weighing-in of goods to a particular target weight within
defined tolerances. With this function it is possible to check whether weighed materials
are within a defined tolerance range.
The terminal has a total of 100 memory locations for frequently used tare values, aver-
age piece weights, target weights and target quantities. In the factory setting, the mem-
ory locations 81 to 90 are reserved for target weights. The saved target weights are
also preserved when the terminal is switched off.
2.7.1 Saving target weights
1. Enter the memory location number (factory setting: 81 ... 90) and keep
pressed until the confirmation tArGEt appears in the display.
2. Enter the target weight in the defined unit, e.g. 1.5 kg, and confirm with .
The display tOLER appears and +flashes.
3. Enter the upper tolerance in the displayed weight unit, e.g. 0.1 kg, and confirm with
:
-or-
➜Press , enter the upper tolerance range in per cent and confirm with .
The display tOLEr appears and –flashes.
4. Enter the lower tolerance accordingly.
The scale returns to weighing mode.
Note If a target weight had already been saved under the selected memory location, the
message rEPLACE appears in the display.
•To save the new target weight, press . The old target weight is overwritten.
•To abort the save process, press . The previous memory location assignment
remains valid.

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2.7.2 Calling up target weights
➜Enter the number of the memory location with the required target weight (factory
setting: 81 ... 90) and press briefly.
The selected target weight and the tolerances are loaded from the memory and
appear briefly in the display. The scale is now ready for weighing-in or check-
weighing.
2.7.3 Weighing-in
1. Place the empty container on the scale and tare.
2. Fill the container with the weighing sample.
The dispensing process can be followed in the graphic display. The 50 % marking
is on the far left here, so that more display segments are available for precise filling
between 50 % and 100 %.
As long as the lower tolerance is not reached, the minus tolerance mark is dis-
played.
If the weight of the weighing sample is within the defined tolerance, the mark OK
is visible and a short beep sounds if activated in the menu.
When the plus tolerance mark appears, the weight is above the permissible toler-
ance.
2.7.4 Checkweighing
1. Place the weighing sample on the scale.
2. Use the displayed mark to check whether the weighing sample is below, within or
above the defined tolerance.
2.7.5 Clearing the saved target weights
1. Enter the number of the memory location with the target weight to be cleared (fac-
tory setting: 81 ... 90) and press briefly.
The saved target weight is displayed.
2. Press within 2 seconds.
CLEArED briefly appears in the display. The saved target weight is cleared.

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2.8 Working with identifications
Weighing series can be assigned 2 identification numbers ID1 and ID2 with up to
40 characters that are also printed out on the protocols.
If for example a customer number and an article number are assigned, it can be
clearly seen on the protocol which article was weighed for which customer.
2.8.1 Entering identification
1. Enter identification and press .
IdENt 1 appears in the display.
2. If the entered identification is to be saved as ID1, press . If the entered identi-
fication is to be saved as ID2, first press , and then press .
The scale returns to weighing mode.
2.8.2 Displaying identification
➜Displaying ID1: Briefly press once.
The number currently assigned to the ID1 appears in the display. If no ID1 was
assigned, no Id appears.
➜Displaying ID2: Briefly press twice.
The number currently assigned to the ID2 appears in the display. If no ID2 was
assigned, no Id appears.
2.8.3 Clearing identifications
1. Briefly press once to display ID1 or briefly press twice to display ID2.
2. Press for as long as the identification is displayed.
The clearing is briefly confirmed with the message CLEArEd.
2.9 Printing results
If a printer or computer is connected to the scale, the weighing results can be printed
out or sent to a computer.
➜Press .
The display contents are printed out and transferred to the computer. See
Section 8.2 for sample protocols.

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2.10 Displaying info
Up to 13 different values to be displayed can be configured in the menu for the key
.
Depending on the configuration in the menu, see Section 4.4.5, the following values
can be stored in any order (for example):
•Net quantity
•Gross weight
•Average piece weight
•Average piece weight, higher resolution
•Counting accuracy
1. Press .
The first value is displayed.
2. Press again.
The next value is displayed.
3. Repeat as often as necessary until the weight display appears again.
Note If is not pressed again within 5 seconds, the scale automatically changes to the
weight display, even if all information has not yet been queried.
2.11 Switching scales
If a second scale or a weighing platform is connected, e. g. via the optional analog
second scale interface, the currently active scale is shown in the display.
The second scale can be operated in exactly the same way as the first scale.
➜Press .
The display changes from one scale to the other.

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2.12 Totalising
The terminal ITT-BA-e-0720 can totalise weight values or pieces. Individual items can
also be subtracted.
A connected printer offers you the possibility of generating a printout for each individ-
ual item and/or a complete printout. For settings in the menu, see Section 4.4.2.
2.12.1 Totalising items
1. Place the first item on the scale and press .
The weight value or the number of pieces are saved and, if necessary, printed out.
2. Unload scale.
3. Place the next item on the scale and press again.
The weight value and the number of pieces of the next item are added to those of
the previous one.
4. Unload scale.
5. Repeat steps 3 and 4 for all other items.
2.12.2 Subtracting items
1. Place the item on the scale, press and hold down .
The weight value or the number of pieces are subtracted and, if necessary, printed
out.
2. Unload scale.
2.12.3 Completing totalising
➜When the last item has been totalised, press .
The "Final Printout" is produced. The sum memory and the item counter are
cleared. The scale is ready for the next totalising process.
2.12.4 Calling up sum information
If the key is assigned accordingly, the number of items, the net sum, the gross
sum and the number of pieces of the current item can be called up via this key, see
Section 4.4.5.

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2.13 Cleaning
CAUTION!
Electric shock hazard!
▲Before cleaning with a damp cloth, pull out the mains plug to disconnect the unit
from the power supply.
Other cleaning information:
•Use damp cloths.
•Do not use any acids, alkalis or strong solvents.
•Do not clean using a high-pressure cleaning unit or under running water.
•Follow all the relevant instructions regarding cleaning intervals and permissible
cleaning agents.