Kern ABT User manual

KERN & Sohn GmbH

Ziegelei 1	Tel: +49-[0]7433- 9933-0
D-72336 Balingen	Fax: +49-[0]7433-9933-149
E-Mail: [e-mail]	Internet: www.kern-sohn.com

Operating instruction

Analytical balance

KERN ABT

Version 1.1 12/2009 GB

ABT-BA-e-0911

GB	KERN ABT
	Version 1.1 12/2009
	Operating instruction
	Analytical balance

Table of Contents

1	Technical data................................................................................................	5
2	Declaration of conformity .............................................................................	8
3	Keyboard and display overview ...................................................................	9
3.1	Keyboard overview.....................................................................................................	9
3.2	Overview of display..................................................................................................	11
4	Basic Information (General)........................................................................	12
4.1	Proper use.................................................................................................................	12
4.2	Improper Use ............................................................................................................	12
4.3	Warranty ....................................................................................................................	12
4.4	Monitoring of Test Resources.................................................................................	13
5	Basic Safety Precautions ............................................................................	13
5.1	Pay attention to the instructions in the Operation Manual...................................	13
5.2	Personnel training ....................................................................................................	13
6	Transport and storage.................................................................................	13
6.1	Testing upon acceptance ........................................................................................	13
6.2	Packaging..................................................................................................................	13
7	Unpacking, Setup and Commissioning .....................................................	14
7.1	Installation Site, Location of Use ............................................................................	14
7.2	Unpacking .................................................................................................................	14
7.2.1	Scope of delivery......................................................................................................................	15
7.2.2	Installation ................................................................................................................................	16
7.3	Mains connection .....................................................................................................	17
7.4	Connection of peripheral devices...........................................................................	17
7.5	Initial Commissioning ..............................................................................................	18
7.5.1	Turning On the Power ..............................................................................................................	18
8	Adjustment ...................................................................................................	19
8.1	Automatic adjustment via PSC ...............................................................................	19
8.1.1	PCS function ON/OFF..............................................................................................................	20
8.2	Automatic adjustment via Clock-CAL ....................................................................	21
8.2.1	Setting the time for Clock-CAL .................................................................................................	22
8.3	Adjustment via preset process ...............................................................................	23
8.3.1	Selecting default adjustment method .......................................................................................	23
8.3.2	Default setting: Adjustment with internal weight.......................................................................	24
8.3.3	Default setting: Adjustment test with internal weight................................................................	24
8.3.4	Default setting: Adjustment test with external weight...............................................................	25
8.4	Carrying out alternative adjustment methods .......................................................	26
8.4.1	Adjustment with internal weight................................................................................................	26
8.4.2	Adjustment test with internal weight.........................................................................................	27
8.4.3	Adjustment test with external weight........................................................................................	28
2		ABT-BA-e-0911

9	Verification ...................................................................................................	29
10	ISO/GLP log..................................................................................................	30
10.1	Setting the log printout of your adjustment data ..................................................	30
10.2	Balance ID Number Setting .....................................................................................	31
10.3	Setting the date printout ..........................................................................................	32
10.3.1	Printout Date and Time, without weight value .....................................................................	32
11	Basic Operation ...........................................................................................	33
11.1	Weighing ...................................................................................................................	33
11.2	Taring.........................................................................................................................	33
11.3	Changing the display ...............................................................................................	34
11.4	Changing readability ................................................................................................	35
11.5	Underfloor weighing.................................................................................................	36
12	The menu......................................................................................................	37
12.1	Changing settings ....................................................................................................	37
12.2	How to change settings ...........................................................................................	37
12.3	Call up menu .............................................................................................................	38
12.4	Selecting the menu...................................................................................................	39
12.5	Menu overview..........................................................................................................	40
12.6	Menu Lock.................................................................................................................	43
12.7	Resetting the menu ..................................................................................................	43
12.8	Settings control display...........................................................................................	44
13	Description of individual functions............................................................	45
13.1	Stability filter.............................................................................................................	45
13.1.1	Standard mode.....................................................................................................................	45
13.1.2	Anti-convection mode...........................................................................................................	46
13.1.3	High-stability Mode...............................................................................................................	46
13.1.4	Apportioning mode ...............................................................................................................	47
13.2	Standstill display ......................................................................................................	48
13.3	Auto Zero...................................................................................................................	49
13.4	Setting date ...............................................................................................................	50
13.5	Setting time ...............................................................................................................	51
13.6	Capacity display .......................................................................................................	52
14	Application Functions .................................................................................	53
14.1	Parts counting ..........................................................................................................	53
14.2	Percent determination..............................................................................................	54
14.3	Density determination..............................................................................................	55
14.3.1	Density determination of solids ............................................................................................	55
14.3.2	Determining density of liquids ..............................................................................................	56
14.4	Auto Print ..................................................................................................................	58
14.5	Add up mode.............................................................................................................	59
14.6	Recipe mode .............................................................................................................	61

ABT-BA-e-0911

3

15	Data output...................................................................................................	63
15.1	RS 232C interface .....................................................................................................	63
15.2	Data Formats.............................................................................................................	63
15.3	Remote control instructions....................................................................................	64
15.4	Standard Settings.....................................................................................................	65
15.5	User Settings ............................................................................................................	66
15.5.1	Communication speed settings............................................................................................	67
15.5.2	Delimiter settings..................................................................................................................	67
15.5.3	Parity settings.......................................................................................................................	67
15.5.4	Stop bit settings....................................................................................................................	68
15.5.5	Input-output data format settings .........................................................................................	68
15.5.6	Handshake settings .............................................................................................................	68
16	Service, maintenance, disposal..................................................................	69
16.1	Cleaning ....................................................................................................................	69
16.2	Service, maintenance...............................................................................................	69
16.3	Disposal.....................................................................................................................	69
17	Instant help...................................................................................................	70

4	ABT-BA-e-0911

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		I			I
	Reproducibility		0.05 mg			0.1 mg
	Linearity		± 0.15 mg			± 0.2 mg
	Stabilization time		10 sec			3 sec
	Adjustment weight			internal
	Weighing units			g, ct
	(calibrated appliances)
	Smallest part weight for		1 mg			1 mg
	piece counting
	Reference quantities at			10, 20, 50,100
	piece counting
	Weighing plate, stainless			ø 80mm
	steel
	Dimensions of the hous-			217 x 356 x 338
	ing (B x D x H)
	Dimensions		Weighing room 168 x172 x223
	Glass wind screen [mm]
	Net weight (kg)			7
	Permitted environmental			+10° C to +30° C
	condition
	Humidity of air		max. 80 % relative (not condensing)
	Voltage			230 V/50Hz

ABT-BA-e-0911

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		I			I
	Reproducibility		0.1 mg			0.1 mg
	Linearity		± 0.2 mg			± 0.2 mg
	Stabilization time			3 sec
	Adjustment weight			internal
	Weighing units			g, ct
	(calibrated appliances)
	Smallest part weight for		1 mg			0,1 mg
	piece counting
	Reference quantities at			10, 20, 50,100
	piece counting
	Weighing plate, stainless			ø 80mm
	steel
	Dimensions of the hous-			217 x 356 x 338
	ing (B x D x H)
	Dimensions		Weighing room 168 x172 x223
	Glass wind screen [mm]
	Net weight (kg)			7
	Permitted environmental			+10° C to +30° C
	condition
	Humidity of air		max. 80 % relative (not condensing)
	Voltage			230 V/50Hz

6	ABT-BA-e-0911

	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		I		I
	Reproducibility		±0.02/ 0.1 mg		±0.05/ 0.1 mg
	Linearity		± 0.05/0.2 mg		± 0.1/0.2 mg
	Stabilization time		3sec./10 sec.
	Adjustment weight		internal
	Weighing units		g, ct
	(calibrated appliances)
	Smallest part weight for		1 mg
	piece counting
	Reference quantities at	10, 20, 50,100
	piece counting
	Weighing plate, stainless		ø 80mm
	steel
	Dimensions of the hous-		217 x 356 x 338
	ing (B x D x H)
	Dimensions		Weighing room 168 x172 x223
	Glass wind screen [mm]
	Net weight (kg)	7
	Permitted environmental		+10° C to +30° C
	condition
	Humidity of air		max. 80 % relative (not condensing)
	Voltage		230 V/50Hz

ABT-BA-e-0911

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2 Declaration of conformity

KERN & Sohn GmbH

D-72322 Balingen-Frommern	Tel: 0049-[0]7433- 9933-0
Postfach 4052	Fax: 0049-[0]7433-9933-149
E-Mail: [e-mail]	Internet: www.kern-sohn.de

Declaration of conformity

Declaration of conformity for apparatus with CE mark Konformitätserklärung für Geräte mit CE-Zeichen Déclaration de conformité pour appareils portant la marque CE Declaración de conformidad para aparatos con marca CE

Dichiarazione di conformità per apparecchi contrassegnati con la marcatura CE

English We hereby declare that the product to which this declaration refers conforms with the following standards.

Deutsch Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht, mit den nachstehenden Normen übereinstimmt.

Français Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la présente déclaration, est conforme aux normes citées ci-après.

Español Manifestamos en la presente que el producto al que se refiere esta declaración está de acuerdo con las normas siguientes

Italiano Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si riferisce è conforme alle norme di seguito citate.

Electronic Balance: KERN ABT

Mark applied			EU Directive	Standards
			2004/108/EC EMC	EN45501
				EN55022
			2006/95/EC Low Voltage	EN60950

Date: 30.11.2009

Signature:

Gottl. KERN & Sohn GmbH

Management

Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0,Fax +49-[0]7433/9933-149

8	ABT-BA-e-0911

3 Keyboard and display overview

3.1Keyboard overview

In weighing mode:

	Key			Designa-			Pressed once and released		Keep pressed for about 3 seconds
				tion
				[ON/OFF]			Switches between the opera-	Switches the key notification buzzer on/off.
							tion and standby modes.
				[CAL]			Invokes adjustment or menu		Invokes adjustment or menu selection.
							selection.
				[TARE]			Tare or set weight display to zero
				[UNIT]			Changing the display
							Issue of weighing value to
				[PRINT]			external appliances (printer,		Issue of date and time to external appliances.
							PC)
							ABT 120-4M		For verified applications cutting off the last
							ABT 220-4M
									digit is only possible for models with a readout
				[1d/10d]			ABT 320-4M
									of 0,01 mg.
							ABT 100-5M
									For all other models the button 1/10d is inop-
							ABT 120-5DM
									erable.
							ABT 220-5DM

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In menu:

	Key			Designa-			Pressed once and released			Keep pressed for about 3 sec-
				tion						onds
				[ON/OFF]			Back to menu		Return to weighing mode
				[CAL]			Menu selection
				[TARE]			Parameter selection
							Storing settings
				[UNIT]			Entering numeric values Increases the numeric value of flashing digit by 1.
				[PRINT]			Entering numeric values. Shifts flashing digit.
				[1d/10d]			No effect.

10	ABT-BA-e-0911

3.2Overview of display

Capacity display

Units display

Display

Designation

Description

Standstill display

Indicates that the weighed value is stable. Highlights current set-

ting during menu item selection

Appears during adjustment. Flashes prior to start of automatic

Weight symbol

adjustment.

Appears during parameter selection for adjustment. Blinks to ad-

vise necessity of adjustment.

Number symbol

Indicates numeric value entry.

Menu symbol

Appears during menu selection. Always shown when the menu is

locked.

Asterisk

Indicates that the displayed numeric value is not a mass value.

Add-on symbol

Indicates set-up of Add-on mode.

Communication

Is lit up during communication with external appliances via RS-

symbol

232C cable. Shown when communication functions are ON.

Battery symbol

Indicates a low battery voltage when using the balance with the

optional battery pack.

Auto Print symbol

Indicates set-up of the Auto Print function.

Standby mark

Appears during standby status of balance.

▼

Inverse triangle sym-

Illuminates as part of the solid specific gravity measurement dis-

bol

play.

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4 Basic Information (General)

4.1Proper use

The balance you purchased is intended to determine the weighing value of material to be weighed. It is intended to be used as a “non-automatic“ balance, i.e. the material to be weighed is manually and carefully placed in the centre of the weighing plate.

As soon as a stable weighing value is reached the weighing value can be read.

4.2Improper 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 plate. This may damage the measuring system.

Impacts and overloading exceeding the stated maximum load (max) of the balance, minus a possibly existing tare load, must be strictly avoided. Balance may be damage by this.

Never operate balance in explosive environment. The serial version is not explosion protected.

The structure of the balance may not be modified. This may lead to incorrect weighing results, safety-related faults and destruction of the balance.

The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing.

4.3Warranty

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

12	ABT-BA-e-0911

4.4Monitoring of Test Resources

In the framework of quality assurance the measuring-related properties of the balance and, if applicable, the testing weight, must be checked regularly. The responsible user must define a suitable interval as well as type and scope of this test. Information is available on KERN’s home page (www.kern-sohn.com with regard to the monitoring of balance test substances and the test weights required for this. In KERN’s accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost.

5 Basic Safety Precautions

5.1Pay attention to the instructions in the Operation Manual

Carefully read this operation manual before setup and commissioning, even if you are already familiar with KERN balances.

5.2Personnel training

The appliance may only be operated and maintained by trained personnel.

6 Transport and storage

6.1Testing upon acceptance

When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage.

6.2Packaging

Keep all parts of the original packaging in case you need to return the appliance. Only use original packaging for returning.

Before sending, disconnect all connected cables and loose/movable parts.

Attach possibly existing transport safeguards. Secure all parts, e.g. weighing plate, power unit etc., to prevent slipping and damage.

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7 Unpacking, Setup and Commissioning

7.1Installation Site, Location of Use

The balances are designed in a way that reliable weighing results are achieved in common conditions of use.

You will work accurately and fast, if you select the right location for your balance.

Therefore, observe the following for the installation site:

•Place the balance on a firm, level surface;

•Avoid extreme heat as well as temperature fluctuation caused by installing next to a radiator or in the direct sunlight;

•Protect the balance against direct draughts due to open windows and doors;

•Avoid jarring during weighing;

•Protect the balance against high humidity, vapours and dust;

•Do not expose the device to extreme dampness for longer periods of time. Non-permitted condensation (condensation of air humidity on the appliance) may occur if a cold appliance is taken to a considerably warmer environment.

In this case, acclimatize the disconnected appliance for ca. 2 hours at room temperature.

•Avoid static charge of goods to be weighed or weighing container.

If electro-magnetic fields or static charge occur, or if the power supply is unstable major deviations on the display (incorrect weighing results) are possible. In that case, the location must be changed.

7.2Unpacking

Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation.

14	ABT-BA-e-0911

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-0911

15

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.

• Level balance with foot screws until the air bubble of the water balance is in the prescribed circle.

• When the key panel and the display must be protected from dirt and wear, place the cover over the key panel.

16	ABT-BA-e-0911

7.3Mains 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 supplies. Using other makes requires consent by KERN.

7.4Connection of peripheral devices

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.

Terminal for external devices:

1

2

3

4

1RS -232 interface

2Mains connector

3Anti-theft safety device (for chains or other fastenings)

4Connection earthing terminal

ABT-BA-e-0911

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7.5Initial 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.Supply power to balance via mains adapter. After the balance performs a self check, calibration will be automatically executed. During this process, the display will change as follows. “CHE 5”,

“CHE 4”...... “CHE 0”, “CHE 2”, “CHE 1” , “CAL 2 – CAL 0” , “CAL-End”, “oFF”.

This adjustment can be interrupted immediately after switching-on the power

supply by actuating the [ON/OFF]-key. However, at least one adjustment must be carried out before the balance can be used.

2.Actuate the [ON/OFF] key. After all displays appear, the gram (g) symbol appears.

3.Pressing the [ON/OFF] key again turns on the standby symbol and puts the balance in standby (warm up) status.

Current time (see ch. 13.5) will be displayed.

18	ABT-BA-e-0911

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). 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 measuring values it is also recommended to adjust the balance periodically in weighing operation.

Observe stable environmental conditions. Stabilisation requires a warm-up period of 1 or 4 hours (for models d = 0.01 mg). Ensure that there are no objects on the weighing plate.

8.1Automatic adjustment via PSC

The default setting for balances of the series ABT ("PSC ON") prompts automatic adjustment via the PSC function.

The moment a change in temperature is detected this function uses the internal tare weight to carry out fully-automatic adjustment with the help of a temperature sensor.

If PSC is left ON, when there is a temperature change that would influence sensitivity, span calibration executes automatically to maintain the sensitivity of the balance. Adjustment in weighing mode is carried out automatically under the following conditions:

(1)If a change in environmental temperature (0.5 °C) occurs;

(2)When about four hours has passed since the previous calibration.

(3)When the balance is switched from standby status to weighing mode and condition (1) or (2) has been met.

(4)When balance was disconnected from the mains.

If one of the above conditions was met in weighing mode, the weight symbol flashes for about two minutes in order to notify the pending adjustment; afterwards the display will show "PSC run". During operation, the display will automatically change and the motor sound of the weight loading system is heard. In order to ensure proper PSC operation, prevent vibrations and air flow. As soon as the display in grams reappears after completing adjustment via PSC, the balance returns to weighing mode. The sensitivity before and after adjustment is slightly different. Also, no measurements can be made during adjustment. To prevent a start-up of adjustment during a measuring process you have to actuate the [ON/OFF] key as soon as the weight symbol starts flashing. This will interrupt automatic adjustment.

ABT-BA-e-0911

19

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: " setting appears:

To change the setting, actuate the [TARE] key as soon as "PSC: " appears.

You can use the [CAL] key to select between the following settings:

Ú“PSC-on” Function activated

“PSC-oF” Function deactivated

The current setting is indicated by the standstill display ().

Confirm your selection by pressing the [TARE] key

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.

PSC and Clock-CAL may be turned on and off separately. The setting control display

(see ch. 12.6) shows the weight symbol (), when PSC or Clock-CAL or both functions are activated.

20	ABT-BA-e-0911

8.2Automatic 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). ClockCAL 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.

The weight symbol blinks for about two minutes as notification of span calibration before it begins. Automatic adjustment can be stopped by actuating the [ON/OFF] key during this message.

Clock-CAL 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 "tCal: " setting appears:

To change the setting, actuate the [TARE] key as soon as "tCal: " appears.

You can use the [CAL] key to select between the following settings:

Ú“tCAL-on” Function activated

“tCAL-oF” Function deactivated

The current setting is indicated by the standstill display ().

Confirm your selection by pressing the [TARE] key

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.

ABT-BA-e-0911

21

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”.

Press the [CAL] key repeatedly until “tCAL t*” appears:

(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). The currently set time is displayed in "HH:MM" (HH for hours, MM for minutes) format with the first digit on the left flashing. The time appears as “_ _:_ _” when no time is set. The symbol, and the # symbol appear to indicate it is in the numerical input status.

Pressing the [PRINT] key moves the blinking digit to the next digit to the right. Press the [UNIT] key to change the value of the blinking digit. When the [UNIT] key is pressed, the numerical of the blinking digit increases by 1 at a time. The numerals progress in this order: 0→1→2→...→9→_→0... Set the hours within the range of 00 to 23 and the minutes within the range of 00 to 59. Complete your setting by pressing the [TARE] key. The display returns to “t CAL t*”.

In order to set another time, press the [CAL] key to move to the next “t CAL t*” setting and set the time in the same way.

Actuate the [ON/OFF] key repeatedly. Return to menu/weighing mode.

Clearing the Settings

The clock settings “tCAL t1” to “tCAL t3” may each be reset by using procedure 3 to set the time setting to “_ _:_ _”.

PSC and Clock-CAL may be turned on and off separately. The setting control display (see ch. 12.6) shows the weight symbol (), when PSC or Clock-CAL or both functions are activated.

22	ABT-BA-e-0911