KERN ABT series Operating Instruction
Analytical balance
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- Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: +49-[0]7433- 9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 E-Mail: info@kern-sohn.com Internet: www.kern-sohn.com Operating instruction Analytical balance KERN ABT Version 1.2 03/2013 ABT-BA-e-1312...
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Page 2: Table Of Contents
KERN ABT Version 1.2 03/2013 Operating instruction Analytical balance Table of Contents Technical data ....................4 Declaration of conformity ................7 Keyboard and display overview ..............8 Keyboard overview ....................8 Overview of display ....................10 Basic Information (General) ................ 11 Proper use .......................11... - Page 3 10.3.1 Printout Date and Time, without weight value ..............33 Basic Operation ................... 34 11.1 Weighing .........................34 11.2 Taring ........................34 11.3 Changing the display ....................35 11.4 Changing readability ....................36 11.5 Underfloor weighing ....................37 The menu ...................... 38 12.1 Changing settings ....................38 12.2 How to change settings ..................38 12.3...
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Page 4: Technical Data
1 Technical data KERN ABT 100-5M ABT 120-4M Readability (d) 0.01 mg 0.1 mg Weighing range (max) 101 g 120 g Minimum load (Min) 1 mg 10 mg Verification value (e) 1 mg 1 mg Verification class Reproducibility 0.05 mg 0.1 mg... - Page 5 KERN ABT 220-4M ABT 320-4M Readability (d) 0.1 mg 0.1 mg Weighing range (max) 220 g 320 g Minimum load (Min) 10 mg 10 mg Verification value (e) 1 mg 1 mg Verification class Reproducibility 0.1 mg 0.1 mg Linearity ±...
- Page 6 KERN ABT 120-5DM ABT 220-5DM Readability (d) 0.01/0.1 mg 0.01/0.1 mg Weighing range (max) 42 g/120 g 82 g/220 g Minimum load (Min) 1 mg 1 mg Verification value (e) 1 mg 1 mg Verification class Reproducibility ±0.02/ 0.1 mg ±0.05/ 0.1 mg...
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Page 7: Declaration Of Conformity
EN 61010-1: 2010 27.03.2013 Datum Signatur Date Signature 72336 Balingen Albert Sauter Ort der Ausstellung KERN & Sohn GmbH Place of issue 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 ABT-BA-e-1312... -
Page 8: Keyboard And Display Overview
3 Keyboard and display overview 3.1 Keyboard overview In weighing mode: Designa- Pressed once and released Keep pressed for about 3 seconds tion Switches between the opera- Switches the key notification buzzer on/off. [ON/OFF] tion and standby modes. Invokes adjustment or menu Invokes adjustment or menu selection. - Page 9 In menu: Designa- Keep pressed for about 3 se- Pressed once and released tion conds Back to menu Return to weighing mode [ON/OFF] Menu selection [CAL] Parameter selection [TARE] Storing settings Entering numeric values Increases the numeric value of flashing digit by 1. [UNIT] Entering numeric values.
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Page 10: Overview Of Display
3.2 Overview of display Capacity display Units display Display Designation Description Indicates that the weighed value is stable. Highlights current set- Standstill display ting during menu item selection Appears during adjustment. Flashes prior to start of automatic adjustment. Weight symbol Appears during parameter selection for adjustment. -
Page 11: Basic Information (General)
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 •... -
Page 12: Monitoring Of Test Resources
Infor- mation 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... -
Page 13: Packaging / Return Transport
6.2 Packaging / return transport Keep all parts of the original packaging for a possibly re- quired return. Only use original packaging for returning. Prior to dispatch disconnect all cables and remove loose/mobile parts. Reattach possibly supplied transport securing devices. ... - Page 14 ABT-BA-e-1312...
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Page 15: Unpacking, Setup And Commissioning
7 Unpacking, Setup and Commissioning 7.1 Installation Site, Location of Use The balances are designed in a way that reliable weighing results are achieved in common conditions of use. You will work accurately and fast, if you select the right location for your balance. Therefore, observe the following for the installation site: •... -
Page 16: Scope Of Delivery
7.2.1 Scope of delivery Serial accessories: Balance Weighing plate Carrier of weighing plate Screening ring Mains adapter Adapter cable holder Protective cover Operating Manual ABT-BA-e-1312... -
Page 17: Installation
7.2.2 Installation • Attach the adapter cable holder. Peel the protective sheet of adhesive of the adapter cable holder, and stick it on the back of the balance as shown in the figure. • Carrier of weighing plate, attach weighing plate and circular screen in order. -
Page 18: Mains Connection
7.3 Mains connection Power is supplied via the external mains power supply. The stated voltage value must be the same as the local voltage. Only use original KERN mains power sup- plies. Using other makes requires consent by KERN. 7.4 Connection of peripheral devices Before connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnect the balance from the power supply. -
Page 19: Initial Commissioning
7.5 Initial Commissioning A warming up time of 4 hours after switching on stabilizes the measuring values. The accuracy of the balance depends on the local acceleration of gravity. Strictly observe hints in chapter Adjustment. 7.5.1 Turning On the Power 1. -
Page 20: Adjustment
8 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). -
Page 21: Pcs Function On/Off
8.1.1 PCS function ON/OFF Press the [CAL] key repeatedly until "SettinG" appears. Press the [TARE] key. The display shows “CAL dEF”. Actuate the [CAL] key repeatedly until the current "PSC:∗∗" set- ting appears: To change the setting, actuate the [TARE] key as soon as "PSC:∗∗"... -
Page 22: Automatic Adjustment Via Clock-Cal
8.2 Automatic adjustment via Clock-CAL (only models ABT 100-5M, ABT 120-5DM, ABT 220-5DM) With the help of its internal adjusting weight and integrated clock the balance can be set to carry out automatic adjustment at set times (up to three times daily). Clock- CAL is a very convenient function, when calibration reports are desired to be made for regular calibrations, or when wishing span calibrations during break times to avoid interruption of measurement work. -
Page 23: Setting The Time For Clock-Cal
8.2.1 Setting the time for Clock-CAL Press the [CAL] key repeatedly until "SettinG" appears. Press the [TARE] key. The display shows “CAL dEF”. the [CAL] key repeatedly until “tCAL t*” appears: Press (for setting 1) Actuate the [TARE] key until "t*HH:MM" is displayed. The *- position symbolises a number between 1 and 3 (3 set times for automatic adjustment). -
Page 24: Adjustment Via Preset Process
8.3 Adjustment via preset process It is possible to start the preset adjustment method without having to access the menu. When in weighing mode, the preset adjustment method can be carried out by simply actuating the [CAL] key, followed by [TARE]. 8.3.1 Selecting default adjustment method Press the [CAL] key repeatedly until "SettinG"... -
Page 25: Default Setting: Adjustment With Internal Weight
8.3.2 Default setting: Adjustment with internal weight Condition: Function „i tCAL“ activated (see ch. 8.3.1) Press the [CAL] key The display shows “i-CAL” Press the [TARE] key. The display changes automatically in this order: “CAL 2”, “CAL 1”, “CAL 0”, and “CAL End”. After success- ful adjustment the balance automatically returns to weighing mode. -
Page 26: Default Setting: Adjustment Test With External Weight
8.3.4 Default setting: Adjustment test with external weight Condition: Function „E tESt“ activated (see ch. 8.3.1) Press the [CAL] key The display shows “E-tESt” Press the [TARE] key. Testing will be started and zero display is flashing (Ensure that no items are present on the weighing plate). -
Page 27: Carrying Out Alternative Adjustment Methods
8.4 Carrying out alternative adjustment methods Here you start adjustment by selecting a setting in the menu. 8.4.1 Adjustment with internal weight Repeatedly press the [CAL] key until "FUnC.SEL" appears. Press the [TARE] key. "CAL" is displayed. Press the [TARE] key. "E CAL" is displayed. Repeatedly press the [CAL] key until "i CAL"... -
Page 28: Adjustment Test With Internal Weight
8.4.2 Adjustment test with internal weight During adjustment tests the balance automatically compares the saved value of the adjustment weight with the actual value. This is only a check, i.e. no values are changed. Repeatedly press the [CAL] key until "FUnC.SEL" appears. Press the [TARE] key. -
Page 29: Adjustment Test With External Weight
8.4.3 Adjustment test with external weight Repeatedly press the [CAL] key until "FUnC.SEL" appears. Press the [TARE] key. "CAL" is displayed. Press the [TARE] key. "E CAL" is displayed. Repeatedly press the [CAL] key until "i tESt" appears. Press the [TARE] key. Testing is started and zero display is flashing. -
Page 30: Verification
9 Verification General introduction: According to EU directive 90/384/EEC balances must be 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. -
Page 31: Iso/Glp Log
Fully automatic and periodical adjustments are carried out and logs created in combination with the Clock-CAL function (see ch. 8.2). First make adjustments as specified in chap. 15.4 under „KERN-YKB-01N“. Then set the log printout as follows: Press the [CAL] key repeatedly until "SettinG" appears. -
Page 32: Balance Id Number Setting
10.2 Balance ID Number Setting This setting is for the balance ID number that is output along with the adjustment re- port. Press the [CAL] key repeatedly until "SettinG" appears. Press the [TARE] key. The display shows “CAL dEF”. Repeatedly actuate the [CAL] key until "id:****" appears (The ∗∗ symbolise the current setting). -
Page 33: Setting The Date Printout
10.3 Setting the date printout This setting determines whether or not the date and time on the balance’s built-in clock is printed out along with the log. Press the [CAL] key repeatedly until "SettinG" appears. Press the [TARE] key. The display shows “CAL dEF”. Repeatedly actuate the [CAL] key until "Prtdt:∗∗"... -
Page 34: Basic Operation
11 Basic Operation 11.1 Weighing Note: Stabilisation requires a warm-up period of 1 or 4 hours (for models d = 0.01 mg). Turn on balance by pressing the [ON/OFF] key. The balance will carry out a self-test Your balance is ready to weigh as soon as the “0.0000 g" display ap- pears. -
Page 35: Changing The Display
11.3 Changing the display You can change the display to activated units, piece counting, percentage and densi- ty determination mode by pressing the [UNIT] key several times. The default setting provides the following options: [g] → [%] → [Pcs] → [ct] → [g] → … Different settings have to be activated in the menu: Repeatedly press the [CAL] key until "FUnC.SEL"... -
Page 36: Changing Readability
11.4 Changing readability (only models ABT 100-5M, ABT 120-5DM, ABT 220-5DM) Models ABT 120-5DM and ABT 220-5DM are set to “lower range“ with a readability of 0.01 mg as soon as they are connected to power supply and turned on. To switch to the “upper range”... -
Page 37: Underfloor Weighing
11.5 Underfloor weighing Objects unsuitable for placing on the weighing pan due to size or shape may be weighed with the help of the flush-mounted platform. Proceed as follows: • Switch off balance. • Open the closing lid (1) on the bottom of your balance. •... -
Page 38: The Menu
12 The menu To adapt the behaviour of the balance to your requirements, go to the balance mode menu. Usually the default setting of the balance mode menu is such that you do not need to make any changes. If you encounter special conditions of use, go to the bal- ance mode menu in order to set your balance according to your individual require- ments. -
Page 39: Call Up Menu
12.3 Call up menu Please have a go and try to change a function yourself. Change the "Auto-Zero" function to OFF and then again to ON. Turn on balance by pressing the ON/OFF key. Actuate the CAL key until FUnC.SEL appears ... -
Page 40: Selecting The Menu
12.4 Selecting the menu In weighing mode press the [CAL] key. First function "i-Cal" (ex.) appears. The various functions of the menu are passed through by pressing the [CAL] key again. Weighing mode Preset adjustment method (see ch. 8.3) Not documented Setting control display (see ch. -
Page 41: Menu Overview
12.5 Menu overview * = default setting ABT-BA-e-1312... - Page 42 ABT-BA-e-1312...
- Page 43 ABT-BA-e-1312...
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Page 44: Menu Lock
12.6 Menu Lock The menu setting operations can be locked so that the settings cannot be inadvert- ently changed. This is called Menu Lock. The menu lock is activated with the follow- ing procedure. Turn on the power supply for the balance and wait until "oFF" ap- pears. -
Page 45: Settings Control Display
12.8 Settings control display To receive a confirmation of the current settings, repeatedly actuate the [CAL] key in weighing mode until "St. b1 t" (ex.) appears. Appears when the automatic adjustment has Appears when the issue of the adjustment been switched on by PSC or Clock-CAL. data is switched on. -
Page 46: Description Of Individual Functions
13 Description of individual functions 13.1 Stability filter Generally, data processing for greater stability slows the response and processing for higher response reduces stability. Balances of the series ABT are designed to ensure both qualities, that is, fast reaction time and high stability. Most measurements can be carried out using default settings, that is, standard mode. -
Page 47: Anti-Convection Mode
13.1.2 Anti-convection mode If measurements have to be taken under unavoidable ambience conditions, (e. g. changing air condition systems) convection occurring within the weighing space may result in fluctuations in the display on the balance after the stability display has ap- peared. -
Page 48: Apportioning Mode
13.1.4 Apportioning mode Use this function if you wish to increase display speed, e.g. during apportioning. However, please note that the balance is very susceptible to ambience conditions. You can set the degree of sensitivity according to site (qui- et/unquiet). Repeatedly press the [CAL] key until "PoUr inG"... -
Page 49: Standstill Display
13.2 Standstill display If the display shows the stability display ( ) the balance is in a stable status. The condition for judging stability is user-selectable. There are three levels to select: 1 count, 5 counts and 10 counts. The default setting is 1 count. The setting of the standstill display can be checked on the setting control display (see ch.12.6). -
Page 50: Auto Zero
13.3 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 compensa- tion“... -
Page 51: Setting Date
13.4 Setting date Press the [CAL] key repeatedly until "SettinG" appears. Press the [TARE] key. Repeatedly press the [CAL] key until "d-MM.DD" appears (MM and DD provide two digits each, indicating month and day). Press the [TARE] key. The date currently set appears. In the up- per part of the display panel, the symbol and the # symbol 15. -
Page 52: Setting Time
13.5 Setting time Balances of the series ABT are equipped with an integrated clock. Set the clock be- fore using the functions Clock-CAL (ch. 8.2) or GLP log (ch. 10). Note that the cur- rent time is displayed at the stand by status (ch. 7.5.1). Press the [CAL] key repeatedly until "SettinG"... -
Page 53: Capacity Display
13.6 Capacity display This function displays a bar graph representation of the load on the weighing plate. This may be used to prevent sudden appearance of “oL” (overload) during measurement. It is possible to turn the display of capacity on or off. Repeatedly press the [CAL] key until "FUnC.SEL"... -
Page 54: Application Functions
14 Application Functions 14.1 Parts counting With parts counting you can either count parts into a container or remove parts from a container. To count a greater number of parts the average weight per part has to be determined with a small quantity (reference quantity). The larger the reference quantity, the higher the counting exactness. -
Page 55: Percent Determination
Remove reference weight. Now you can fill the items to be counted into the container. The respective quantity is shown in the display. Repeated pressing of the [UNIT] key changes the display value, e. g.: [g] → [%] → [Pcs] → [ct] Note: Error message "Err 20"... -
Page 56: Density Determination
14.3 Density determination Density determination with the help of the flush-mounted platform facility is described in the following. Density determination becomes even easier when an optional set for density deter- mination is applied. For further information please refer to the operating instructions enclosed with the set for density determination. -
Page 57: Determining Density Of Liquids
Repeatedly press the [UNIT] key until the balance is in density determination mode for solids ",d". Note that “g” also appears dur- ing weight measurement in air. Press the [TARE] key. Place the item to be measured on the weighing pan. When standstill control is complete, press the [CAL] key Place the item to be measured on the immersed hanging weighing pan. - Page 58 Repeatedly press the [UNIT] key until the balance is in density determination mode for liquids "d". Note that “g” also appears dur- ing weight measurement in air. Press the [TARE] key. Place the body to be immersed on the weighing pan. When standstill control is complete, press the [CAL] key Immerse the body to be immersed without bubbles developing.
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Page 59: Auto Print
14.4 Auto Print Using Auto Print allows measurement results to be automatically output via the RS- 232C interface without pressing the [PRINT] key individually with every measure- ment. An issue will be made after standstill control ( ) is complete. The next meas- urement is done after removing the items from the weighing plate and the display is returning to a value within the ±3-fold of the zero range. -
Page 60: Add Up Mode
14.5 Add up mode An optional number of single weighing processes are automatically added up to a total sum, e.g. all single weighing processes of a batch or if you have to carry out a great number of measurements of small samples. When the standstill control ( ) is complete the weighing value is automatically is- sued to the optional printer. - Page 61 Confirm your selection by pressing the [TARE] key. Printout "---- ---- ADDON MODE ---------" takes place. To exit the function, press the [ON/OFF] key. Brief actuation of ON/OFF key: Back to previous menu. Long actuation of ON/OFF key: Back to weighing mode. Whilst the add-on function is active, the display keeps showing the add-on symbol [ Add up: Operation...
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Page 62: Recipe Mode
Printout: ---ADDON Mode--- CMP001= 5,0003 g CMP002= 5,0017 g CMP003= 5,0010 g TOTAL= 15,0030 g Note: Only one function at a time may be activated (on) when working with func- tions auto print, add-on and recipe. Whilst the function is active, automatic adjustment (PSC/Clock-CAL) does not take place. - Page 63 Place further components 0.4488 g When the last single weighing process is complete press 1.5271 g [ON/OFF] key to receive the total sum (Total). Remove weight from weighing plate. The balance is now ready for further measurements. Printout: ---Formulation Mode--- CMP001= 0,5361 g CMP002=...
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Page 64: Data Output
15 Data output 15.1 RS 232C interface Pin allocation of balance output plug: PIN No. Signal 15.2 Data Formats Note: space character and DL the delimiter code. 1. Input Data Format COMMAND CODE + DL (see 15.2.3) 2. Output data format ... -
Page 65: Remote Control Instructions
15.3 Remote control instructions Attention: Inputting characters and command codes not shown here into the balance may not only alter the previous settings but may also impair proper measurement. If by mistake characters or commands not shown here are entered into the balance, immediately unplug the power supply cable and wait about ten seconds before plug- ging again. -
Page 66: Standard Settings
(see 15.5) KERN– iF:USEr 1200 None (8) YKB-01N Selecting one of standard Settings: Repeatedly press the [CAL] key until "intFACE" appears. Press [TARE] key Repeatedly press the [CAL] key until the desired standard setting appears. -
Page 67: User Settings
15.5 User Settings The user setting allows individual setting for each item in communication settings. Repeatedly press the [CAL] key until "intFACE" appears. Press [TARE] key Repeatedly press the [CAL] key until "iF:USEr" appears. Press [TARE] key (Example) Use the [CAL] key to select between the following settings (The **** reflect the current setting, two to four characters): “io.b:****”... -
Page 68: Communication Speed Settings
15.5.1 Communication speed settings 1. The display changes from “io.b:****” to “b-300”. Pressing the [CAL] key changes the display. The standstill display ( ) marks the current setting. b-300 b-600 b-1200 b-2400 b-4800 Display during setting 300bps 600bps 1200bps 2400bps 4800bps Setting specifics Baud Rate... -
Page 69: Stop Bit Settings
15.5.4 Stop bit settings 1. The display changes from “io.S:****” to “S-S1”. Pressing the [CAL] key changes the display. The standstill display ( ) marks the current setting. S-S1 S-S2 Display during setting Stop bit, 1 bit Stop bit, 2bit Setting specifics 2. -
Page 70: Service, Maintenance, Disposal
Spilled weighing goods must be removed immediately. 16.2 Service, maintenance The appliance may only be opened by trained service technicians who are author- ized by KERN. Before opening, disconnect from power supply. 16.3 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. -
Page 71: Instant Help
17 Instant help In case of an error in the program process, briefly turn off the balance and discon- nect from power supply. The weighing process must then be restarted from the be- ginning. Error code table: Error code display Explication Remedy High zero point shift dur-... - Page 72 Attempting to measure volatile sub- Measure with a lid on it. stances The weighed item is electrically Measure in a metal contain- charged. er. Measure with a metal object larger than the items. Sample temperature and tempera- Measure at the same tem- ture inside weighing space differ.