Kern 440-33N, 440-21A, 440-21N 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

Precision balances

KERN 440

Version 4.1 09/2009 GB

440-BA-e-0941

	GB	KERN 440
		Version 4.1 09/2009
		Operating instruction
		Precision balances
Table of Contents
1	Technical data................................................................................................		4
2	Declaration of conformity .............................................................................		8
3	Basic Information (General)..........................................................................		9
3.1	Proper use.................................................................................................................................		9
3.2	Improper Use ............................................................................................................................		9
3.3	Warranty ....................................................................................................................................		9
3.4	Monitoring of Test Resources...............................................................................................		10
4	Basic Safety Precautions ............................................................................		10
4.1	Pay attention to the instructions in the Operation Manual ................................................		10
4.2	Personnel training	..................................................................................................................	10
5	Transport and storage.................................................................................		10
5.1	Testing upon acceptance ......................................................................................................		10
5.2	Packaging................................................................................................................................		10
6	Unpacking, Setup and Commissioning .....................................................		11
6.1	Installation Site, Location of Use..........................................................................................		11
6.2	Unpacking ...............................................................................................................................		11
6.2.1	Setup ........................................................................................................................................		11
6.2.2	Scope of delivery......................................................................................................................		12
6.3	Mains connection ...................................................................................................................		12
6.4	Operation using a (rechargeable) battery (optional) ..........................................................		12
6.5	Connection of peripheral devices.........................................................................................		13
6.6	Initial Commissioning ............................................................................................................		13
6.7	Adjustment..............................................................................................................................		13
6.8	Adjustment..............................................................................................................................		13
6.9	Underfloor weighing ..............................................................................................................		14
7	Operation......................................................................................................		15
7.1	Overview of display................................................................................................................		15
7.2	Weighing .................................................................................................................................		15
7.3	Taring.......................................................................................................................................		16
7.4	PRE-Tare function	..................................................................................................................	16
7.5	Plus/minus weighings............................................................................................................		16
7.6	Parts counting ........................................................................................................................		17
7.7	Net-total weighings ................................................................................................................		18
7.8	Percent weighings..................................................................................................................		18
7.9	Weighing units (Unit) .............................................................................................................		19
7.10	Display background illumination..........................................................................................		20
7.11	Animal weighing function......................................................................................................		21

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8	Settings.........................................................................................................	22
8.1	Call-up menu structure ..........................................................................................................	22
8.2	Leave menu structure ............................................................................................................	23
8.3	Dosing and Zero-tracking......................................................................................................	23
8.4	Selection of the adjustment weight......................................................................................	24
8.5	Interface RS232C....................................................................................................................	25
8.5.1	Data transfer mode...................................................................................................................	25
8.5.2	Baud rate ..................................................................................................................................	25
8.6	Selection printed edition .......................................................................................................	26
8.7	Reset to factory setting .........................................................................................................	27
9	Data output RS 232 C ..................................................................................	28
9.1	Technical data.........................................................................................................................	28

9.2Pin allocation of the balance output socket (front view), .................................................. 28

9.3	Explanation of the data transfer ...........................................................................................	28
9.3.1	Pr PC ........................................................................................................................................	28
9.3.2	AU Pr .......................................................................................................................................	28
9.3.3	AU PC......................................................................................................................................	29
9.3.4	rE Cr ........................................................................................................................................	29
9.4	Output on bar code printer....................................................................................................	30
10	Service, maintenance, disposal..................................................................	31
10.1	Cleaning ..................................................................................................................................	31
10.2	Service, maintenance.............................................................................................................	31
10.3	Disposal...................................................................................................................................	31
11	Instant help...................................................................................................	32

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1 Technical data

	KERN		440-21N			440-21A				440-33N
	Readability (d)		0.001 g			0.001 g				0.01 g
	Weighing range (max)		40 g			60 g				200 g
	Taring range (subtractive)		40 g			60 g				200 g
	Reproducibility		0.001 g			0.001 g				0.01 g
	Linearity		± 0.003 g			± 0.003 g				± 0.02 g
	Minimum unit weight at		0.002 g			0.002 g				0.02 g
	piece counting
	Warm-up time		2 hours			2 hours				30 minutes
	Reference quantities at			5, 10, 25, 50
	piece counting
	Weighing Units		Details „Weighing units“ chapter 7.9
	Recommended adjustment weight,		40g (F1)			50g (F2)				200g (M1)
	not added (class)
	Stabilization time (typical)					3 sec.
	Operating temperature			+ 5° C .... + 35° C
	Humidity of air		max. 80 % (not condensing)
	Housing (B x D x H) mm					165 x 230 x 80
	Weighing plate mm	Ø 81				Ø 81				Ø 105
	Weight kg (net)	1.0				1.0				1.0
	Underfloor weighing	-				-				Standard
	Flush-mounted hook	-				-				Option

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KERN

440-35N

440-35A

440-43N

440-45N

Readability (d)

0.01 g

0.01 g

0.1 g

0.1 g

Weighing range (max)

400 g

600 g

400 g

1,000 g

Taring range (subtractive)

400 g

600 g

400 g

1,000 g

Reproducibility

0.01 g

0.01 g

0.1 g

0.1 g

Linearity

± 0.03 g

± 0.03 g

± 0.2 g

± 0.2 g

Minimum unit weight at

0.02 g

0.02 g

0.2 g

0.2 g

piece counting

Warm-up time

2 hours

2 hours

10 minutes

30 minutes

Reference quantities at

5, 10, 25, 50

piece counting

Weighing Units

Details „Weighing units“ chapter 7.9

Recommended adjustment

400g (F2)

500g (F2)

400 g (M2)

1,000 g (M1)

weight, not added (class)

Stabilization time (typical)

3 sec.

Operating temperature

+ 5° C .... + 35° C

Humidity of air

max. 80 % (not condensing)

Housing (B x D x H) mm

165 x 230 x 80

Weighing plate mm

Ø 105

Ø 105

130 x 130

130 x 130

Weight kg (net)

1.0

1.0

1.0

1.0

Underfloor weighing

Standard

Flush-mounted hook

Option

440-BA-e-0941

5

	KERN		440-47N				440-49N			440-49A
	Readability (d)		0.1 g				0.1 g			0.1 g
	Weighing range (max)		2,000 g				4,000 g			6,000 g
	Taring range (subtractive)		2,000 g				4,000 g			6,000 g
	Reproducibility		0.1 g				0.1 g			0.1 g
	Linearity		± 0.2 g				± 0.3 g			± 0.3 g
	Minimum unit weight at piece		0.2 g				0.2 g			0.2 g
	count
	Warm-up time		30 minutes				2 hours			2 hours
	Reference unit weights at piece			5, 10, 25, 50
	count
	Weighing Units		Details „Weighing units“ chapter 7.9
	Recommended adjustment		2,000 g (M1)				4,000 g (F2)			5,000 g (F2)
	weight, not added (class)
	Stabilization time (typical)						3 sec.
	Operating temperature			+ 5° C .... + 35° C
	Humidity of air		max. 80 % (not condensing)
	Housing (B x D x H) mm					165 x 230 x 80
	Weighing plate mm		130 x 130				150 x 170			150 x 170
	Weight kg (net)	1.0				1.0				1.0
	Underfloor weighing						Standard
	Flush-mounted hook						Option

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	KERN		440-51N				440-53N		440-55N
	Readability (d)		1 g				1 g		0.2 g
	Weighing range (max)		4,000 g				6,000 g		6,000 g
	Taring range (subtractive)		4,000 g				6,000 g		6,000 g
	Reproducibility		1 g				1 g		0.2 g
	Linearity		± 2 g				± 2 g		± 0.6 g
	Minimum unit weight at piece		2 g				2 g		0.4 g
	count
	Warm-up time		10 minutes				30 minutes		2 hours
	Reference unit weights at piece			5, 10, 25, 50
	count
	Weighing Units		Details „Weighing units“ chapter 7.9
	Recommended adjustment		4,000 g (M2)				5,000 g (M2)		5,000 g (F2)
	weight, not added (class)
	Stabilization time (typical)						3 sec.
	Operating temperature			+ 5° C .... + 35° C
	Humidity of air		max. 80 % (not condensing)
	Housing (B x D x H) mm			165 x 230 x 80
	Weighing plate mm		150 x 170				150 x 170		150 x 170
	Weight kg (net)	1.0				1.0			1.0
	Underfloor weighing						Standard
	Flush-mounted hook						Option

440-BA-e-0941

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2 Declaration of conformity

KERN & Sohn GmbH

D-72322 Balingen-Frommern	Phone: 0049-[0]7433- 9933-0
Postbox 4052	Fax: 0049-[0]7433-9933-149
email: [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 to 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 440

Mark applied			EU Directive	Standards
			89/336EEC EMC	EN 55022 : 1998+A1		: 2000
				EN 61000-3-2	: 2000
				EN 61000-3-3	: 1995+A1 : 2001
				EN 55024 : 1998+A1		: 2001

Date: 15.12.2005

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	440-BA-e-0941

3 Basic Information (General)

3.1Proper 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.

3.2Improper Use

Do not use balance for dynamic weighings. 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“ in the balance. (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.

3.3Warranty

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 and damage caused by media, liquids, natural wear and tear

•The appliance is improperly set up or incorrectly electrically connected

•The measuring system is overloaded

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3.4Monitoring 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.

4 Basic Safety Precautions

4.1Pay 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.

4.2Personnel training

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

5 Transport and storage

5.1Testing upon acceptance

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

5.2Packaging

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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