KERN PRS, PRJ, ARS, ARJ Operating Instruction

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PRS/PRJ/ARS/ARJ-BA-def-0622 85

KERN & Sohn GmbH

Ziegelei 1 D-72336 Balingen E-Mail: info@kern-sohn.com

Tel: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com

Operating instruction Precision and analytical balances

KERN PRS/PRJ/ARS/ARJ

Version 2.2 11/2006 GB

PRS/PRJ/ARS/ARJ-BA-e-0622

86 PRS/PRJ/ARS/ARJ-BA-def-0622

KERN PRS/PRJ/ARS/ARJ

Version 2.2 11/2006

Operating Instructions Precision and analytical balance

Table of Contents

1 Technical data _____________________________________________________89 2 Declaration of conformity____________________________________________95 3 Fundamental information (general)____________________________________ 97

3.1 Intended use ________________________________________________________97

3.2 Inappropriate use ____________________________________________________97

3.3 Guarantee __________________________________________________________97

3.4 Monitoring the test equipment__________________________________________98

4 Fundamental safety information ______________________________________98

4.1 Observe the information in the operating instructions______________________98

4.2 Staff training ________________________________________________________98

5 Transport and storage ______________________________________________98

5.1 Acceptance check____________________________________________________98

5.2 Packaging __________________________________________________________98

6 Unpacking, installation and commissioning ____________________________99

6.1 Place of installation, place of use _______________________________________99

6.2 Unpacking __________________________________________________________99

6.3 Installation _________________________________________________________100

6.3.1 Windshield for PRS and PRJ balances (d=0.1 mg)_______________________________ 101

6.4 Functions of the balance _____________________________________________102

6.5 Equipment overview: ________________________________________________103

6.6 Scope of delivery ___________________________________________________104

6.7 Mains supply _______________________________________________________105

6.8 Connecting peripheral devices ________________________________________105

6.9 Commissioning _____________________________________________________105

6.10 Calibration _________________________________________________________105

6.10.1 External calibration by means of ICM _______________________________________ 106

6.10.2 External calibration with freely selectable weight ______________________________ 107

6.10.3 Internal calibration (only ARJ/PRJ models) __________________________________ 108

6.10.4 Automatic calibration (only ARJ/PRJ models)_________________________________ 108

6.10.5 Balances appropriate for verification (only ARJ/PRJ models)_____________________ 109

6.10.6 Position of verification safety seal (only on ARJ/P RJ models appropriate for verification)110

6.11 Suspended weighing ________________________________________________111

7 Modes of operation and use_________________________________________112

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7.1 Switching on the balance_____________________________________________112

7.2 Auto-Standby-Mode _________________________________________________112

7.3 Significance of the two main menus____________________________________112

7.4 Activating the two main menus ________________________________________113

7.4.1 Activating the configuration menu ____________________________________________ 113

7.4.2 Activating the application menu______________________________________________ 113

7.5 How the menu control operates________________________________________113

7.5.1 Control panel____________________________________________________________ 114

7.5.2 Operation in weighing mode ________________________________________________ 114

7.5.3 Operation in programming mode_____________________________________________ 115

7.5.4 Display_________________________________________________________________ 116

7.5.5 Info-line and function keys__________________________________________________ 116

7.5.6 Example of display: Statistics program ________________________________________ 117

7.6 Password protection of the menus _____________________________________118

7.7 Anti-theft encoding __________________________________________________118

8 Working with the configuration menu_________________________________120

8.1 Structure of the configuration menu____________________________________120

8.2 Language function __________________________________________________121

8.3 Defining the configuration ____________________________________________122

8.4 Selecting the weight unit _____________________________________________122

8.5 Print functions______________________________________________________123

8.6 Calibration functions ________________________________________________124

8.7 Weighing mode _____________________________________________________125

8.8 Interface functions __________________________________________________126

8.9 Date and time (only PRJ and ARJ models) ________________________________126

8.10 Password protection_________________________________________________127

8.11 Anti-theft encoding __________________________________________________127

9 Working with the application menu___________________________________128

9.1 Structure of the application menu______________________________________128

9.2 Selecting an application______________________________________________129

9.3 Setup for “SET APP UNITS”: __________________________________________130

9.4 Setup for “SET APP COUNT”__________________________________________131

9.5 Setup for “SET APP PERCENT” _______________________________________132

9.6 Setup for “SET APP CALCULATOR”____________________________________133

9.7 Setup for “SET APP PAPER”__________________________________________134

9.8 Setup for “SET APP NET TOTAL” ______________________________________135

9.9 Setup for “SET APP TOTALISE” _______________________________________136

9.10 Setup for “SET APP ANIMAL WEIGHING” _______________________________137

9.11 Setup for “SET APP DENSITY” ________________________________________138

9.12 Setup for the statistics program _______________________________________140

9.13 Setup for CHECK weighing ___________________________________________142

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10 Special operating keys ___________________________________________143

10.1 The Tare key “T” ____________________________________________________143

10.2 The CAL key “CAL”__________________________________________________143

10.3 The Print key “PRINT” _______________________________________________144

10.4 The Change key « » _______________________________________________144

11 Data transfer to peripheral devices _________________________________145

11.1 Connection to peripheral devices ______________________________________146

11.2 Data transfer _______________________________________________________147

11.3 Remote-control commands ___________________________________________148

11.4 Examples for the remote control of the balance __________________________149

12 Practical examples ______________________________________________150

12.1 Changing the configuration menu______________________________________150

12.1.1 Setting the choice of language ____________________________________________ 150

12.1.2 Setting the Weight unit __________________________________________________ 150

12.1.3 Setting the Print functions________________________________________________ 151

12.1.4 Activation of password protection __________________________________________ 152

12.2 Selecting an application program ______________________________________153

12.2.1 Setting for Counting by weighing___________________________________________ 153

12.2.2 Setting the statistics function______________________________________________ 155

13 Further information ______________________________________________158

13.1 Notes on Weighing mode_____________________________________________158

13.1.1 Set Weighing mode: Floati ng display _______________________________________ 158

13.1.2 Set Weighing mode: Stability control________________________________________ 158

13.1.3 Set Weighing mode: Auto-Standby_________________________________________ 159

13.1.4 Set Weighing mode: Auto-Zero____________________________________________ 159

13.2 Notes on density determination________________________________________160

13.2.1 Density determination “Solid on bottom mode ”________________________________ 160

13.2.2 Density determination “Solid in air mode”____________________________________ 160

13.2.3 Density determination “Liquid mode”________________________________________ 160

13.2.4 14.3.4 Density determination “Porous solid mode” _____________________________ 160

14 Configuration menu tree__________________________________________161 15 Application Menu Tree ___________________________________________ 164

15.1 Software updates via Internet _________________________________________165

16 Servicing, maintenance, disposal __________________________________165

16.1 Cleaning___________________________________________________________165

16.2 Servicing, maintenance ______________________________________________165

16.3 Disposal ___________________________________________________________165

17 Troubleshooting ________________________________________________166 18 Error messages and correction of faults_____________________________167

18.1 Notes on correcting faults ____________________________________________167

PRS/PRJ/ARS/ARJ-BA-def-0622 89

1 Technical data

KERN PRS 320-3N PRS 620-3N PRS 4200-2N PRS 4200-

2IP65N

Readout (d) 0.001 g 0.001 g 0.01 g 0.01 g Weighing range (Max) 320 g 620 g 4,200 g 4,200 g Repeatability 1 mg 1 mg 10 mg 10 mg Linearity ± 1.5 mg ± 1.5 mg ± 15 mg ± 15 mg Recommended adjusting

weight, not included (class)

200 g (E2) 500 g (E2) 4000 g (E2) 4000 g (E2)

Minimum piece weight in count mode

0.001 g 0.001 g 0.01 g 0.01 g

Reference quantity when counting parts

1-999 1-999 1-999 1-999

Weighing plate, stainless steel [mm]

135 x 135 135 x 135 170 x 170 170 x 170

Dimensions of housing (W x D x H) [mm]

210 x 340 x 150 210 x 340 x 150 210 x 340 x 150 210 x 340 x 150

Dimensions of weighing space glass windshield [mm]

155 x 155 x 55 155 x 155 x 55 - -

Net weight (kg) 5.1 5.1 4.5 4.5 Stabilisation time 2 seconds Weight units

(verified equipment)

mg, g

Weight units (non-verified equipment)

mg, g, GN, dwt, ozt, oz, lb, ct, C.M. tLH, tLM, tLT, mo, Tola

Permissible ambient conditions

10° C to 30° C

Air humidity max. 80 % relative (non condensing)

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KERN PRS 6200-2N PRS 8200-1N PRS 8200-1IP65N PRS 12200-1N

Readout (d) 0.01 g 0.1 g 0.1 g 0.1 g Weighing range (Max) 6,200 g 8,200 g 8,200 g 12,200 g Repeatability 10 mg 0.1 g 0.1 g 0.1 g Linearity ± 15 mg ± 0.1 g ± 0.1 g ± 0.1 g Recommended adjusting

weight, not included (class)

5000 g (E2) 5000 g (F2) 5000 g (F2) 10 000 g (F1)

Minimum piece weight in count mode

0.01 g 0.1 g 0.1 g 0.1 g

Reference quantity when counting parts

1-999 1-999 1-999 1-999

Weighing plate, stainless steel [mm]

170 x 170 200 x 200 200 x 200 200 x 200

Dimensions of housing (W x D x H) [mm]

210 x 340 x 150 210 x 340 x 150 210 x 340 x 150

210 x 340 x

150

Net weight (kg) 4.5 4.7 4.7 4.7 Stabilisation time 2 seconds Weight units

(verified equipment)

mg, g

Weight units (non-verified equipment)

mg, g, GN, dwt, ozt, oz, lb, ct, C.M. tLH, tLM, tLT, mo, Tola

Permissible ambient conditions

10° C to 30° C

Air humidity max. 80 % relative (non condensing)

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KERN PRS 12200-

1IP65N

PRJ 320-3NM PRJ 620-3NM PRJ 1200-3N

Readout (d) 0.1 g 0.001 g 0.001 g 0.001 g Weighing range (Max) 12,200 g 320 g 620 g 1,220 g Minimum load - 0.02 g 0.02 g Verification value - 0.01 g 0.01 g Verification categories - II II Repeatability 0.1 g 1 mg 1 mg 1 mg Linearity ± 0.1 g ± 1.5 mg ± 1.5 mg ± 2 m g Recommended adjustment

weight

10 000 g (F1) - - -

Adjustment weight - internal internal internal Minimum piece weight in

count mode

0.1 g 0.001 g 0.001 g 0.001 g

Reference quantity when counting parts

1-999 1-999 1-999 1-999

Weighing plate, stainless steel [mm]

200 x 200 135 x 135 135 x 135 135 x 135

Dimensions of housing (W x D x H) [mm]

210 x 340 x 150

210 x 340 x

150

210 x 340 x 150

210 x 340 x

150

Dimensions of glass windshield [mm]

Weighing

space 155 x

155 x 55

Weighing space

155 x 155 x 55

150 x 150 x 60

Net weight (kg) 4.7 5.5 5.5 5.5 Weight units

mg, g, GN, dwt,

ozt, oz, lb, ct, C.M.

tLH, tLM, tLT, mo,

Tola

mg, g mg, g

mg, g, GN,

dwt, ozt, oz, lb,

ct, C.M. tLH,

tLM, tLT, mo,

Tola

Permissible ambient conditions

10° C to 30° C

Stabilisation time 2 seconds Air humidity max. 80 % relative (non condensing)

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KERN PRJ 4200-2NM PRJ 6200-2NM PRJ 6200-1IP65NM PRJ 8200-1NM

Readout (d) 0.01 g 0.01 g 0.1 g 0.1 g Weighing range (Max) 4,200 g 6,200 g 6,200 g 8,200 g Minimum load 0.5 g 0.5 g 5 g 5 g Verification value 0.1 g 0.1 g 1 g 1 g Verification categories II II II II Repeatability 10 mg 10 mg 0.1 g 0.1 g Linearity ± 15 mg ± 15 mg ± 0.1 g ± 0.1 g Adjustment weight internal internal internal internal Minimum piece weight in

count mode

0.01 g 0.01 g 0.1 g 0.1 g

Reference quantity when counting parts

1-999 1-999 1-999 1-999

Weighing plate, stainless steel [mm]

170 x 170 170 x 170 200 x 200 200 x 200

Dimensions of housing (W x D x H) [mm]

210 x 340 x

150

210 x 340 x

150

210 x 340 x 150

210 x 340 x

150

Net weight (kg) 5.5 5.5 5.6 5.6 Weight units

mg, g, kg

Permissible ambient conditions

10° C to 30° C

Stabilisation time 2 seconds Air humidity max. 80 % relative (non condensing)

PRS/PRJ/ARS/ARJ-BA-def-0622 93

KERN PRJ 8200-

1IP65NM

PRJ 10200-

1IP65NM

ARS 120-4N ARS 220-4N

Readout (d) 0.1 g 0.1 g 0.1 mg 0.1 mg Weighing range (Max) 8,200 g 10,200 g 120 g 220 g Minimum load 5 g 5 g - Verification value 1 g 1 g - Verification categories II II - Repeatability 0.1 g 0.1 g 0.1 mg 0.1 mg Linearity ± 0.1 g ± 0.1 g ± 0.2 mg ± 0.2 mg Recommended adjusting

weight, not included (class)

- 100 g (E2) 200 g (E2)

Adjustment weight internal internal Minimum piece weight in

count mode

0.1 g 0.1 g 0.1 mg 0.1 mg

Reference quantity when counting parts

1-999 1-999 1-999 1-999

Weighing plate, stainless steel [mm]

200 x 200 200 x 200

Ø 80 Ø 80

Dimensions of housing (W x D x H) [mm]

210 x 340 x 150

210 x 340 x

150

210 x 340 x 345 210 x 340 x 345

Dimensions of glass windshield [mm]

- -

205 x 205 x 260 weighing space: 180 x 200 x 240

Net weight (kg) 5.6 5.6 5.9 5.9 Weight units

mg, g, kg mg, g, kg

mg, g, GN, dwt, ozt, oz, lb, ct, C.M.

tLH, tLM, tLT, mo, Tola

Permissible ambient conditions

10° C to 30° C 15° C to 25° C

Stabilisation time 2 seconds 3 seconds Air humidity max. 80 % relative (non condensing)

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KERN ARJ 120-4NM ARJ 205-5DM ARJ 220-4NM

Readout (d) 0.1 mg 0.01/0.1 m g 0.1 mg Weighing range (Max) 120 g 90/205 g 220 g Minimum load 0.01 g 0.01 g 0.01 g Verification value 1 mg 1 mg 1 mg Verification categories I I I Repeatability 0.1 mg 0.03/0.1 mg 0.1 mg Linearity ± 0.2 mg ± 0.06/0.2 mg ± 0.2 mg Stabilisation time 3 secon d s 10/3 seconds 3 seconds Adjustment weight internal internal internal Minimum piece weight in

count mode

0.1 mg 0.01 mg 0.1 mg

Reference quantity when counting parts

1-999 1-999 1-999

Weighing plate, stainless steel [mm]

Ø 80 Ø 80 Ø 80

Dimensions of housing (W x D x H) [mm]

210 x 340 x 345 210 x 340 x 345 210 x 340 x 345

Dimensions of glass windshield [mm]

205 x 205 x 260 weighing space: 180 x 200 x 240

205 x 205 x 260

205 x 205 x 260 weighing space: 180 x 200 x 240

Net weight (kg) 6.9 6.9 6.9 Weight units mg, g Permissible ambient

conditions

15° C to 25° C

Air humidity max. 80 % relative (non condensing)

PRS/PRJ/ARS/ARJ-BA-def-0622 95

2 Declaration of conformity

KERN & Sohn GmbH

D-72322 Balingen-Frommern Postfach 4052 E-Mail: info@kern-sohn.de

Tel: 0049-[0]7433- 9933-0 Fax: 0049-[0]7433-9933-149 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 conformitá 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 ARS, ARJ KERN PRS, PRJ

Mark applied EU Directive Standards

89/336EEC EMC EN 50081-1

EN 50082-1 EN 55022

Date: 15.01.2006 Signature:

Gottl. KERN & Sohn GmbH Management

Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0,Fax +49-[0]7433/993 3-149

96 PRS/PRJ/ARS/ARJ-BA-def-0622

KERN & Sohn GmbH

D-72322 Balingen-Frommern Postfach 4052 E-Mail: info@kern-sohn.de

Tel: 0049-[0]7433- 9933-0 Fax: 0049-[0]7433-9933-149 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 conformitá per apparecchi contrassegnati con la marcatura CE

English

We hereby declare that the product to which this declaration refers conforms with the following standards. This declaration is only valid with the certificate of conformity by a notified body.

Deutsch

Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht, mit den nachstehenden Normen übereinstimmt. Diese Erklärung gilt nur in Verbindung mit der

Konformitätsbescheinigung einer benannten Stelle.

Français

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

certificat de conformité d’un organisme notifié.

Español

Manifestamos en la presente que el producto al que se refiere esta declaración está de acuerdo con las normas siguientes. Esta declaratión solo será válida acompañada del certificado de

conformidad de conformidad de la parte nominal.

Italiano

Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si riferisce è conforme alle norme di seguito citate. Questa dichiarazione sarà valida solo se accompagnata dal certificato

di conformità della parte nominale.

Model: KERN ARJ

PRJ 320-3NM PRJ 620-3NM PRJ 1200-3N PRJ 4200-2NM PRJ 6200-2NM

PRJ 6200-1IP65NM PRJ 8200-1NM PRJ 8200-1IP65NM PRJ 10200-1IP65NM

EU Directive Standards

EC-type-approval certificate no.

Issued by

90/384/EEC EN 45501 D00-09-029

PTB

Date: 15.01.2006 Signature:

Gottl. KERN & Sohn GmbH Management

Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-07433/9933-0,Fax +49-074433/9933-149

PRS/PRJ/ARS/ARJ-BA-def-0622 97

3 Fundamental information (general)

3.1 Intended use

The balance you have purchased is to be used to determine the weight of the 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. The weighing value can be read off after a stable weighing value has been obtained.

3.2 Inappropriate use

Do not use the balance for dynamic weighing, if small quantities of the material to be weighed are removed or added. The “stability compensation” function in the balance itself can result in incorrect weighing results being displayed! (Example: Slowly draining fluids from a container on the balance.) Do not leave a permanent load on the weighing plate. This can damage the measuring equipment. Be sure to avoid impact shock and overloading the balance in excess of the prescribed maximum load rating (max.), minus any possible tare weight that is already present. This could cause damage to the balance. Never operate the balance in hazardous areas. The standard model is not explosionproof. Structural alterations may not be made to the balance. This can lead to incorrect weighing results, faults concerning safety regulations and also to serious damage to the balance. The balance may only be used in compliance with the described guidelines. Varying areas of application/planned use must be approved by KERN in writing.

3.3 Guarantee

The guarantee is not valid following

• non-observation of our guidelines in the operating instructions

• use other than for the applications described

• alteration to or opening of the device

• mechanical damage and damage caused by media, liquids, or natural wear and tear

• inappropriate installation or electric installation

• overloading of the measuring equipment

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3.4 Monitoring the test equipment

The metrology features of the balance and any possible available test weight must be checked at regular intervals within the scope of quality assurance. For this purpose, the user responsible must define a suitable interval as well as the nature and scope of this check. Please see KERN’s home page (www.kern-sohn.com) for information regarding the monitoring of balance test equipment and the test weights required for this. Test weights and balances can be calibrated quickly and at a reasonable price in KERN’s accredited DKD calibration laboratory (return to national standard).

4 Fundamental safety information

4.1 Observe the information in the operating instructions

Please read the operating instructions carefully before installing and commissioning, even if you already have experience with KERN balances.

4.2 Staff training

The device may only be operated and maintained by trained members of staff.

5 Transport and storage

5.1 Acceptance check

Please check the packaging immediately upon delivery and check the device during unpacking for any visible signs of external damage.

5.2 Packaging

Please retain all parts of the original packaging in case it should be necessary to return items at any time. Only the original packaging should be used for return consignments. Before despatch, disconnect all attached cables and loose/movable parts. Affix any intended transport security devices. Secure all parts, e.g. weighing plate, power supply unit etc. to prevent slipping and damage.

PRS/PRJ/ARS/ARJ-BA-def-0622 99

6 Unpacking, installation and commissioning

6.1 Place of installation, place of use

The balance is constructed in such a way that reliable weighing results can be achieved under normal application conditions. By selecting the correct location for your balance, you will be able to work quickly and precisely.

Therefore please observe the following at the place of installation:

• 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 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 long periods of time.

Inadmissible bedewing (condensation of air moisture on the device) can occur if a cold device is taken into a significantly warmer environment. In this case, please acclimatise the device for approx. 2 hours at room temperature after it has been disconnected from the mains.

• Avoid static charging of the material to be weighed and weighing container.

Major display deviations (incorrect weighing results) are possible if electromagnetic fields occur, as well as due to static charging, currents and unstable power supply. It is then necessary to change the location.

6.2 Unpacking

Carefully remove the balance from the packaging, remove the plastic cover and install the balance in the intended workplace.

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6.3 Installation

The balance consists of the balance body (1), the scale pan holder (4) and the pan (5), which, depending on the model, may be square (fig. 1, right) or round (fig. 1, left). Depending on the model (see Chapter 1 “Technical Data”) the balance additionally has a simple windshield (fig. 1, right) or a windshield with sliding doors (fig. 1, left) (2) and/or a protective ring (3).

Fig. 1 Your balance Use the foot screws to level the balance until the air bubble is in the prescribed circle in

the spirit level.

PRS/PRJ/ARS/ARJ-BA-def-0622 101

6.3.1 Windshield for PRS and PRJ balances (d=0.1 mg)

The position of the windshield on the balance can be seen in figure 1 (see 2a).

Note: If the windshield is not even after assembly,

it can be adjusted according to drawing below.

Press down the higher corner (arrow) with moderate force.

If necessary, turn windshield by 90° and carry out the same operation again until the windshield sits evenly.

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6.4 Functions of the balance

The versatile weighing program allows you to use the KERN balances of the PRS, PRJ, ARS, ARJ series not only for simple weighings but also using a simple method to carry out various weighing applications such as, for example, percentage or component counting applications and documenting the measurements obtained accurately and unequivocally.

The most important basic production features of the KERN PRS, PRJ, ARS, ARJ series include:

• Anti-theft encoding with four-digit numerical code

• Multi-stage password protection for the program menus

• ICM-Autocalibration (Intelligent Calibration Mode)

• 5-key multifunction control panel

• LCD display with multi-line display

• ISO and GLP compliant reporting of measurement results

• RS232/V24 serial interface for data transfer

• Storable user-configuration (UMM User Menu Memorized)

• Functions programmed in the factory for:

 Parts counting  Percentage weighing  Weighing in different, internationally-valid units  Density determination  Net-total weighing function

• Device for suspended weighing

PRS/PRJ/ARS/ARJ-BA-def-0622 103

6.5 Equipment overview:

1 Cover of the device for suspended weighings 2 Name plate 3 Adjustable feet (for levelling) 4 Weighing plate 5 Multifunction display 6 10-key control panel 7 Serial No. plate 8 Connecting socket for power adaptor 9 RS232 Interface 10 Spirit level 11 Eyelet for attaching a safety chain

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6.6 Scope of delivery

Inspect delivery for completeness immediately on unpacking all components.

d = 0,1 mg d = 1 mg

d = 10 mg

d = 0,1 mg d = 1 g

Standard accessories Balance Scale pan support with weighing plate Power adaptor Protective cover for the display Windshield BASIC

(only balances d = 0.1 mg) Simple windshield

(only balances d = 1 mg) Protective ring

(only balances d = 1 mg, d = 10 mg) Operating instructions

PRS/PRJ/ARS/ARJ-BA-def-0622 105

6.7 Mains supply

Electric power supply is by means of the external power adaptor. The printed voltage level must comply with the local voltage. Only use original KERN power adaptors. The use of other makes is subject to approval by KERN.

6.8 Connecting peripheral devices

The balance must be disconnected from the mains before connecting or disconnecting additional equipment (printer, PC) to or from the data interface. Only use KERN accessories and peripheral devices with your balance as these have been specially adapted to function best with your balance.

6.9 Commissioning

A warm up time of 1 hour after switching the balance on will stabilise the measuring values. The accuracy of the balance depends on the local gravity. Please be sure to observe the information in the chapter on Calibration.

6.10 Calibration

Since the Earth's gravity is not the same everywhere, each balance must – in accordance with the underlying physical weighing principle – be adjusted to compensate for the gravity at each location. This adjustment process, known as “calibration”, must be carried out on commissioning and after each subsequent relocation. It is also advisable that you adjust the balance periodically during weighing operation in order to obtain exact measured values.

NOTE

The balance must be calibrated on commissioning and after every relocation. If you work in accordance with “Good Laboratory Practice GLP”, observe the prescribed

intervals between calibrations (adjustments).

Adjusting the calibration is carried out in the configuration menu. Depending on the model of balance, this may be done externally, internally or automatically (see Chapter 8.6 “Calibration functions”). Adjustment should be carried out with the recommended adjusting weight (KERN ARS/PRS, see Chapter 1 „Technical Data“). The adjustment can also be carried out with different adjusting weights, but not ideal from a metrological point of view. Using the “Intelligent Calibration Mode” (ICM) the balance can itself determine the size of the calibration weight, which enables an exact calibration with different weights (in 10 g, 50 g, 100 g and 500 g steps, depending on model).

You can find information about test weights on the Internet: http://www.kern-sohn.com

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The calibration of the balance is set in the configuration menu (see Chapter 8.6 “Calibration of the balance”).

Possible types of calibration, depending on the balance model:

• External calibration by means of ICM (Intelligent Calibration Mode)

• External calibration with freely selectable weight

• Internal calibration

• Automatic calibration

NOTE

The calibration can be interrupted at any time by pressing the “ON/OFF” key.

6.10.1 External calibration b y means of ICM (only ARS/PRS models)

Depending on the type of balance, calibration weights in steps of 10 g, 50 g, 100 g and 500 g can be used, where the calibration weight must relate to the accuracy of the balance. For an external calibration by means of ICM, “SET CALIBRATION MODE EXTERNAL” must be selected in the configuration menu (see Chapter 8.6 “Calibration functions”).

• Switch to “WEIGHING” using the “ ” key

CALIBRATION

• Press “CAL” until “CALIBRATION” appears.

- - 0000 g

• The balance carries out a zero measurement (0000 g is shown flashing)

- - 2000 g

• After the zero measurement has been taken, the display flashes with the recommended calibration weight

• Place the calibration weight on the pan

- - 2000 g

• The display continues to flash

• Calibration is complete when the display

stops flashing

+ 2000 g

PRS/PRJ/ARS/ARJ-BA-def-0622 107

6.10.2 External calibration with freely selectable weight

(only ARS/PRS models)

For an external calibration with user-definable weight, “SET CALIBRATION MODE EXT.DEF.” must be selected in the configuration menu (see Chapter 8.6 “Calibration functions”). Then, the effective value of the calibration weight (DEF. n.nnn g) must be entered with up to ten times precision when compared with the balance.

NOTE

If calibration is carried out with the free weight, then only this weight may be used.

Then proceed as follows:

• Switch to “WEIGHING” using the “ ” key

CALIBRATION

• Press “CAL” until “CALIBRATION” appears.

- - 0000 g

• The balance carries out a zero measurement (0000 g is shown flashing)

- - 372 g

• After the zero measurement has been taken, the display flashes with the previously entered calibration weight

• Place the calibration weight on the pan

- - 372 g

• The display flashes rapidly

• Calibration is complete when the display

stops flashing (the exact weight is shown)

+372.15 g

108 PRS/PRJ/ARS/ARJ-BA-def-0622

6.10.3 Internal calibration (only ARJ/PRJ models)

For an internal calibration with the built-in calibration weight, “SET CALIBRATION MODE INTERNAL” must be selected in the configuration menu (see Chapter 8.6 “Calibration functions”).

Then proceed as follows:

• Switch to “WEIGHING” using the “ ” key

• Press “CAL” until “CALIBRATION” appears.

• The calibration is finished after a certain period of time.

6.10.4 Automatic calibration

(onl

y ARJ/PRJ models)

For automatic calibration with the built-in calibration weight, “SET CALIBRATION MODE AUTO” must be selected in the configuration menu (see Chapter 8.6 “Calibration functions”).

The balance now calibrates itself automatically every 24 hours and/or after each temperature change of 3 degrees Celsius, depending on how “SET CALIBRATION AUTOCAL” has been defined in the configuration menu.

The timing of the automatic calibration is as determined in the configuration menu under “SET CALIBRATION AUTOCAL.-TIME n h”. (e.g. 6 h for 06.00 o'clock in the morning).

NOTE

For automatic calibration by time and by time/temp., the date and time of the balance must first be set correctly (see Chapter 8.9 “Date and time”).

The calibration can also be initiated manually at any time, even when auto-calibration is activated.

The automatic calibration then takes place only if no weight is placed on the pan for at least five minutes.

It is recommended that the time for the auto-calibration be set at a time outside the normal business hours (for example, in the early morning).

PRS/PRJ/ARS/ARJ-BA-def-0622 109

6.10.5 Balances appropriate for verification (only ARJ/PRJ models)

Balances appropriate for verification are provided with EU/OIML approval or meet the EU regulations for verified balances. The balance program and certain functions of the weighing output differ from the standard program in the case of balances which are appropriate for verification – in accordance with EU regulations.

General: According to EU guideline 90/384/EEC, balances must be verified officially if they are to be used as follows (in a legally regulated area):

a) For commercial transactions if the price of goods is determined by weighing. b) For the production of medicines in pharmacies as well as for analyses in the

medical and pharmaceutical laboratory. c) For official purposes. d) For the production of packed goods.

In case of doubt, please contact your local weights and measures office. Verification information For those balances marked as appropriate for verification in the technical data, an EC type approval is available. In the event that the balance is used 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 provisions of that particular country. The period 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. After the verification process, the scale is sealed at the marked points.

Without the “seal”, the verification of the scale is not valid.

Balances appropriate for verification are provided with EU approval or meet the EU regulations for verified balances. The balance program and certain functions of the weighing output differ from the standard program in the case of balances which are appropriate for verification – in accordance with EU regulations.

NOTE

If a circle appears in the main display of a verified balance, then the displayed value is not verified.

In balances of class (I) the circle also denotes the warm-up phase. Your KERN trader will be happy to assist you at any time if you have any questions on the

verification of the balance or on working with verified balances.

110 PRS/PRJ/ARS/ARJ-BA-def-0622

6.10.6 Position of verification safety seal (only on ARJ/PRJ models appropriate for verification)

M sign for EU – first calibration

(green M)

Balances which are subject to verification must be taken out of operation if:

- The weighing result from the balance is outside the operational error limit.

Therefore at regular intervals, load the balance with known test weights (approx. 1/3 of the maximum load) and compare with the display value.

- The re-verification date has been exceeded.

S Safety seals

(self-sticking seal or lead) K shield of mark with CE-sign and date

of the year

M sign for EU – first calibration (green M)

Interface

PRS/PRJ/ARS/ARJ-BA-def-0622 111

6.11 Suspended weighing

Objects which, because of their size or shape, cannot be put on the scale, can be weighed by means of suspended weighing. Proceed as follows:. Turn the balance off.

• Remove the scale-pan and the scale pan support and turn the balance over.

• Push the metal-cover (1) on the underside of the balance to one side.

• Hang a small hook (available as an accessory) into the aperture (3) of the now

visible metal casting (2).

• Place the balance over an opening.

• Replace the scale pan support and the scale pan.

• Level the balance.

• Switch on the balance.

• Hang the object to be weighed on the hook and carry out the weighing.

Fig.: Setting up the balance for suspended weighings

CAUTION

Take care that the hooks used for the suspended weighing are stable enough to safely hold the goods which you wish to weigh.

NOTE

Take care that no dirt or moisture can get into the balance while the scale pan support is removed.

After completing the suspended weighing, the opening on the underside of the balance must be closed again (dust protection).

112 PRS/PRJ/ARS/ARJ-BA-def-0622

7 Modes of operation and use

7.1 Switching on the balance

• Press “ON/OFF“ to switch the scale on.

The balance carries out a self-diagnosis in order to test the most important functions. After completion of the start-up process (approximately ten seconds) “Zero” appears in the display. The balance is ready for operation and is in weighing mode.

7.2 Auto-Standby-Mode

The balance is equipped with an Auto-Standby mode, which can be activated or deactivated in the configuration menu.

If Auto-Standby mode is activated, the balance automatically switches to Standby mode shortly after the last weighing or key operation (current-saving function).

The delay before switching to Standby is defined in the configuration menu (see Chapter

8.7 “Weighing mode”).

Press any key or put on a weight in order to switch the balance from Standby mode back to weighing mode again.

7.3 Significance of the two main menus

The balance has two main menus available: the configuration menu and the application menu.

The basic program of the balance is defined in the configuration menu. In this way, you can either work with the basic configuration as programmed in the factory, or define and store a user configuration adapted to your specific needs.

In the application menu, you define a working program, which is adapted to the specific weighing situation.

In addition, you can also define the parameters for the statistics program and the checkweighing program in the application menu.

PRS/PRJ/ARS/ARJ-BA-def-0622 113

7.4 Activating the two main menus

7.4.1 Activating the configuration menu

• Press “ON/OFF“ to switch the scale on.

• During the start-up sequence (about 10 seconds), keep the “MENU” key depressed

until “SET CONFIGURATION” appears in the display.

• You can then alter the configuration menu

7.4.2 Activating the application menu

• To get into the application menu, press “MENU” after the start-up sequence is

complete.

7.5 How the menu control operates

The configuration menu and the application menu each have a main path and up to two sub-paths in which the parameters for the different function programs of the balance are defined.

The cursor keys “Õ“, “Ö“, “×” and “Ø“ allow you to move within the paths.

NOTE

The menu tree diagrams shown have the same layout as the paths of the two main menus.

114 PRS/PRJ/ARS/ARJ-BA-def-0622

7.5.1 Control panel

Eight of the ten keys on the Multifunctional Control Panel serve multiple functions (functions for weighing mode and programming mode respectively).

7.5.2 Operation in weighing mode

In weighing mode, the grey shaded key symbols in the control panel apply.

Key(s) Name Function in weighing mode

“ON/OFF”

• Switches the balance on and off

“MENU”

• Calls up the configuration menu and the application menu

“CAL”

• Initiates calibration functions

“T”

• Initiates tare functions

• Switches between the basic

program and the selected application

“PRINT”

• Initiates print functions

• Function keys. Initiate the functions

in the info-line (see Chapter 7.5.5 “Info-line and function keys”).

NOTE

For the use of the “T”, “CAL”, “ ” and “PRINT” keys, see Chapter 10 “Special operating keys“.

PRS/PRJ/ARS/ARJ-BA-def-0622 115

7.5.3 Operation in programming mode

In programming mode, the blue shaded key symbols in the control panel apply.

Key(s) Name Function during weighing mode

• Toggles between menu main path and sub-path

• Moves up and down within the main or sub-path.

• Alters the selected parameters

• Selects parameters

• Stores the altered parameters

esc

• Aborts an entry

• Exits the menu

ins

• Places cursor (when entering text)

clr

• Deletes entry (when entering text)

• Enters a full-stop (when entering text)

The balance can also be operated by remote control. For the relevant remote control commands, see Chapter 11 “Data transfer to peripheral devices”.

For an illustration of the method of operation see Chapter 12 “Practical examples”.

116 PRS/PRJ/ARS/ARJ-BA-def-0622

7.5.4 Display

The balance display has two lines (1 and 2).

The upper display-line (1) includes the 8-digit measurement display (3) as well as various symbols (4).

The lower line (2) serves as a 20-character info-line and is used in conjunction with the cursor keys to control the working programs.

7.5.5 Info-line and function keys

If an application (working program) is used, then as well as the measurement display (1), the four column info-line also appears at the bottom edge of the display.

Any function displayed in the info-line corresponds to the function key which is directly below it (marked by G (3)).

The cursor keys (4) “Õ”, “Ö”, “×” and “Ø” serve as function keys in the applications. These initiate the functions displayed in the info-line (2).

PRS/PRJ/ARS/ARJ-BA-def-0622 117

7.5.6 Example of display: Statistics program

• Display on the balance in the statistics program

• Relevant displays in the operating instructions

+ 123,456 9

normal weight display

STO 0 RES INF

Info-line

U U U U

“Õ” “Ö” “×” “Ø” Function keys

• Function key legends as shown in the example:

– STO initiates the manual store function “STO” – RES activates the “RES” (Reset) function – INF activates the “INF” function (display sequence of the statistic parameters:

average value, standard deviation, relative standard deviation, maximum, minimum …)

NOTE

If the statistics program is activated in parallel with a working program, then “Ø” is reserved for storing (“STO function”) or recalling statistical parameters (“INF function“).

If the statistics program is not active, then “Ø“ can be used for the working program.

118 PRS/PRJ/ARS/ARJ-BA-def-0622

7.6 Password protection of the menus

The two main menus of the balance can be protected against unintentional changes by a freely selectable, four-digit password.

• With password protection deactivated, any operator can change the balance configuration and application menu.

• With “medium” password protection activated, only the configuration menu is protected against unintentional changes.

• With “high” password protection activated, both the configuration menu and the application menu are protected against unintentional changes. Only after entering the correct, four-digit password can changes be made to the configuration menu and the application menu.

NOTE

The password protection is deactivated from the factory.

The pre-programmed password set from the factory is: 7 9 1 4 This password is the same for all KERN balances and is always valid, in parallel with a

self-selected password. Make a note of your personal password.

The possibilities for setting the password protection and changing the password are described in Chapter 8.10 “Password protection”.

7.7 Anti-theft encoding

The balance can be protected against theft by a freely selectable, four-digit numerical code:

• With anti-theft encoding deactivated, the balance can be switched on again and operated after interruption of the power supply without entering a code.

• With anti-theft encoding activated, the balance requires the entry of the four-digit code after each interruption to the power supply.

• If the code is entered incorrectly, the balance is blocked.

PRS/PRJ/ARS/ARJ-BA-def-0622 119

• If the balance is blocked, it must first be disconnected from the power supply, then reconnected and unblocked by entering the correct four-digit code.

• After seven consecutive incorrect entries the display will read “NO ACCESS, CALL SERVICE”. In this case, only KERN Service can unblock the balance again.

NOTE

The anti-theft-encoding is deactivated from the factory.

The pre-programmed password set from the factory is: 8 9 3 7 This password is the same for all KERN balances. For reasons of security you should

therefore always enter your own code. Keep your personal code in a safe place.

To activate the anti-theft encoding and to alter the code programmed in the factory to one which you have chosen yourself, see Chapter 8.11 “Anti-theft encoding”.

120 PRS/PRJ/ARS/ARJ-BA-def-0622

8 Working with the configuration menu

This chapter describes the configuration menu and its functions. To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5

“How the menu control operates”.

8.1 Structure of the configuration menu

The basic setting of the balance is defined in the configuration menu:

Main path Definable functions

SET CONFIGURATION

Selection of the basic configuration (factory setting, user setting or storing a new user setting)

UNIT 1

Unit in which the results of the weighing are displayed

SET DATA PRINT

Print formats; type of value to be printed out (individual value, continuous print, time or load change dependant values, date, time, user etc.)

SET CALIBRATION

Calibration method

SET WEIGHING MODE

Stability mode (Quality of the balance location), AutoStandby mode, zero correction, tare method (rapid or standard tare); Chapter 6.6

SET INTERFACE

Baud rate, parity, handshake functions of the peripheral interfaces

SET DATE AND TIME

Date and time (standard format or American format p.m. and a.m.) [only ARJ and PRJ]

PASSWORD

Password protection for menu definition

THEFTCODE

Activation/deactivation and changing the Anti-theft encoding

KEY TONE

Key Tone on/off

LANGUAGE

Language (E, G, F)

PRS/PRJ/ARS/ARJ-BA-def-0622 121

Printing conventions used in this document:

• The settings in the sub-paths pre-programmed in the factory are printed in bold in these operating instructions.

• For greater clarity, only that part of the menu tree which corresponds to the function is shown with each description of the function.

• You will find the entire menu tree for the configuration menu in Chapter 14 “Configuration menu tree”.

• Explanations of the menu functions are printed in italics.

8.2 Language function

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• LANGUAGE

SPRACHE DEUTSCH

LANGUAGE ENGLISH

LANGUE FRANCAISE

Select language

In order to alter the language, proceed as follows:

• Activate the configuration menu (see Chapter 7.4.1 “Activating the configuration

menu”)

• Press ”Ø” repeatedly until the current language is displayed.

• Press “ ”. The display starts to flash.

• Press ”Ø” repeatedly until the language you require is displayed.

• Press ” ” to confirm the selection.

• Press “esc” to exit the menu.

•SPR

122 PRS/PRJ/ARS/ARJ-BA-def-0622

8.3 Defining the configuration

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SET CONFIGURATION

FACTORY CONFIG. USER

CONFIG. STORE CONFIG.

8.4 Selecting the weight unit

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• UNIT 1

UNIT 1 g

------

Gramme

Kilogramme

-----Tola

The balance can show results in different units, although on some balances display it is not possible to display in milligrammes or kilogrammes because of the current weighing range.

Display Weight unit Conversion to grammes g

Gramme (mg) Milligramme 0.001 g (kg) Kilogramme 1,000 g GN Grain 0.06479891 g dwt Pennyweight 1.555174 g ozt Troy ounce 31.10347 g oz Ounce 28.34952 g LB Pound 453.59237 g ct Carat 0.2 g C.M. Carat Metric 0.2 g tLH Tael Hong Kong 37.4290 g tLM Tael Malay sia 37.799366256 g tLT Tael Taiwan 37.5 g mo Momme 3.75 g t Tola 11.6638038 g Bht Baht 15.2 g

For further information on “Setting the weight unit”, see the example in Chapter 12.1.2.

PRS/PRJ/ARS/ARJ-BA-def-0622 123

8.5 Print functions

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SET

DATA PRINT

AUTO-START ON/OFF

Start print automatically on switch on/off

MODE UNSTABLE

Individual print, each value

MODE STABLE

Individual print, stable value

MODE LOAD CHANGE

Print after change of load

MODE CONTINUOUS

Continuous print after every integration time

MODE TIMEBASE

Continuous print with timebase

TIMEBASE 2.0

Timebase (in seconds)

SET PRINT FORMAT

DATE AND TIME ON/OFF BALANCE ID ON/OFF PRODUCT ID ON/OFF GROSS AND TARE ON/OFF UNITS ON/OFF OPERATOR ID ON/OFF VERIFICATION MODE ON/OFF PRODUCT * ttt...

PRODUCT MODE HOLD PRODUCT MODE DELETE PRODUCT MODE COUNT OPERATOR ttt...

Using “SET PRINT FORMAT”, those elements which are switched on are printed in each case:

• With “UNITS”, all units active at that time are printed out,

• with “PRODUCT ttt...”, the product name can be entered alphanumerically,

• with “PRODUCT MODE HOLD”, this product name is stored,

• with “PRODUCT MODE DELETE”, it is deleted after each expression,

• with “PRODUCT MODE COUNT” a counter is printed after every product name and

this counter is incremented by 1 after each print out.

• with “OPERATOR ttt...” the operator can be entered alphanumerically. When a peripheral device (for example a printer) is connected, the balance interface must

be configured in the “SET INTERFACE” sub-menu (see Chapter 8.8 “Interface functions”). For further information on “Setting the print function”, see the example in Chapter 12.1.3.

124 PRS/PRJ/ARS/ARJ-BA-def-0622

8.6 Calibration functions

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SET CALI- BRATION

MODE OFF

MODE EXTERNAL MODE EXT.-DEF.

MODE INTERNAL MODE AUTO

no access external external with user-defined weight (DEF n.nnn g) with internal weight automatic (AUTOCAL) only PRJ and ARJ models

DEF. 0.000 g

Calibration weight for EXT.-DEF. mode

AUTOCAL. TIME/TEMP.

AUTOCAL. TEMPERATURE AUTOCAL. TIME

Autocal. on time and temp. Autocal. on temperature Autocal. on time

only PRJ and ARJ models

AUTOCAL. TIME 6 h

Time for Autocalibration

For calibration of the balance see Chapter 6.10 “Calibration of the balance” and Chapter

6.10.1 “Notes on calibration”.

NOTE

The factory setting depends on the balance model. The internal calibration modes are only available on the PRJ and ARJ models.

PRS/PRJ/ARS/ARJ-BA-def-0622 125

8.7 Weighing mode

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SET WEIGHING MODE

FLOATING DISPLAY 0.04

FLOATING DISPLAY 0.08 FLOATING DISPLAY 0.16 FLOATING DISPLAY 0.32

Enter integration time (in seconds)

STABILITY LOW

STABILITY MEDIUM STABILITY HIGH

Setting the stability control (instability of the balance location)

AUTO-STANDBY OFF

AUTO-STANDBY 5 MIN. AUTO-STANDBY 10 MIN. AUTO-STANDBY 30 MIN.

Auto-Standby not active or active after nn minutes

AUTO-ZERO ON/OFF

Automatic zero correction on/off

QUICK TARE ON/OFF

Quick tare on/off

By using the weighing mode functions, you can describe the quality of the balance location.

By using the AUTO-STANDBY function, you can define the period of non-use before the balance automatically goes into the energy-saving mode.

NOTE

The automatic standby function only operates if automatic zero point compensation is activated.

For further information see Chapter 13.

126 PRS/PRJ/ARS/ARJ-BA-def-0622

8.8 Interface functions

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SET INTERFACE

BAUD RATE 300

BAUD RATE 600 BAUD RATE 1200 BAUD RATE 2400 BAUD RATE 4800 BAUD RATE 9600

Select baud rate

PARITY 7-EVEN-1STOP

PARITY 7-ODD-1STOP PARITY 7-NO-2STOP PARITY 8-NO-1STOP

Select parity

HANDSHAKE NO

HANDSHAKE XON-XOFF HANDSHAKE HARDWARE.

Enter handshake function

By using the interface functions, the RS232/V24 interface of the balance is matched to the interface of a peripheral device (see Chapter 11 “Data transfer to peripheral devices”).

•SET

8.9 Date and time (only PRJ and ARJ models)

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SET DATE AND TIME

DATE [DD.MM.YY]

DATE [DD.MM.YY] FORMAT STANDARD/US

Set date and time

NOTE

The date and time display continues in the event of a power failure. If this is not the case, the balance backup battery is exhausted and must be replaced by KERN trader.

PRS/PRJ/ARS/ARJ-BA-def-0622 127

8.10 Password protection

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• PASS- WORD

PASSWORD

----

DATA PROTECTION OFF DATA PROTECTION MEDIUM

DATA PROTECTION HIGH

No protection The configuration menu is protected

The configuration menu and the application menu are protected

PASSWORD NEW ----

Enter new password

Password protection permits you to protect the application menu and/or the configuration menu against unintentional changes.

For further information on password protection, see Chapter 7.6 “Password protection of the menus” and Chapter 12.1.4 “Activation of password protection”.

•SET

8.11 Anti-theft encoding

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• THEFT CODE

THEFTCODE ----

THEFTCODE ON/OFF

Switch encoding on/ off

NEW CODE ––––

Enter new code

If the anti-theft encoding is activated, a four-digit code must be entered after every interruption of the power supply in order to unblock the balance for use. For further information on the anti-theft encoding see Chapter 7.7 “Anti-theft encoding”. To activate the anti-theft encoding, proceed as described for password protection.

128 PRS/PRJ/ARS/ARJ-BA-def-0622

9 Working with the application menu

This chapter explains which working programs are contained within the balance and how these are operated (see also Chapter 7.4 “Activating the two main menus” and Chapter

7.5 “How the menu control operates”). If “PRINT” is operated in an application, a report is printed out which relates to the

application.

9.1 Structure of the application menu

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”. The application menu is used to recall the working programmes of the balance and to adapt them to the user's needs:

Main path Definable functions

SET APP.

Select application program:

SETUP APPLICATION

Specify parameters for the working program as selected under “Application”

SET STATISTICS

Statistics and store functions

SET CHECK +/-

Define nominal weight and limits for comparative weighings

AUTO-START ON/OFF

The selected application program can, if required, be loaded automatically every time the balance is switched on

Printing conventions used in this document:

• The settings for the sub-menus programmed in the factory are printed in bold in these operating instructions

• For a greater clarity, only that part of the menu tree which corresponds to this application is shown with each application description.

• You will find the complete menu tree for the application menu in Chapter 15 “Application menu tree”.

• Explanations of the menu functions are printed in italics.

PRS/PRJ/ARS/ARJ-BA-def-0622 129

9.2 Selecting an application

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SELECT APPLICATION

SET APP OFF

UNITS COUNT PERCENT CALCULATOR PAPER

NET TOTAL

TOTALISE

ANIMAL WEIGHING DENSITY

Normal weighing mode Different units Parts counting Percent weighings Conversions Determine paper weights

(in g/cm2) Totalise weighing results

with intermediate tare Totalise weighing results

without intermediate tare Animal weighings Determining density

In this function field, select the desired application. If an application is selected in the “SET APP.” menu, then only those sub-menus, which

contain functions and parameters necessary to define the selected application are shown in the “SETUP APPLICATION” menu.

130 PRS/PRJ/ARS/ARJ-BA-def-0622

9.3 Setup for “SET APP UNITS”:

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

UNIT 2 kg UNIT 2 mg UNIT 2 -----UNIT 2 OFF

Kilogramme Milligramme

-----

not active

UNIT 3 GN UNIT 3 UNIT 3 OFF

Grain

-----

not active

UNITS

UNIT 4 C.M. UNIT 4 -----UNIT 4 OFF

Carat Metric

-----

not active

• Function key legends:

“g”: “Display value in unit 1”, e.g. gramme “kg”: “Display value in unit 2”, e.g. kilogramme “GN”: “Display value in unit 3”, e.g. grain “ct”: “Display value in unit 4", e.g. carat or Statistics functions (if statistics program is activated)

NOTE

For basic operation, Unit 1 is defined in the configuration menu (standard unit for all weighings, if the “UNITS” application is not activated, see Chapter 8.4 “Selecting the weight unit”).

• Display in the “UNITS” application:

+ 8.070 g

g kg TLH CT

U U U U

“Õ” “Ö” “×” “Ø”

By pressing the relevant function key, the weight display is switched to the corresponding unit

PRS/PRJ/ARS/ARJ-BA-def-0622 131

9.4 Setup for “SET APP COUNT”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

COUNT KEY 1 5

KEY 2 10 KEY 3 25 KEY 4 50

Reference quantity = 5 Reference quantity = 10 Reference quantity = 25

Reference quantity = 50

By using the “COUNT” program you can count items of uniform weight (screws, balls, coins, etc.).

To do this you must first weigh a defined quantity of items (e.g. 5 items) and assign the acquired reference weight to the reference quantity by pressing the relevant function key.

Depending on the weight and tolerances of the objects to be counted, you should count a representative number of items to determine the reference weight.

• Function key legends:

«5» Definition of reference quantity as 5 up to «50» Definition of reference quantity as 50 For further information on “Setting up parts counting”, see the example in Chapter 12.2.1.

• Display in the “COUNT” application:

+ 123.456 g

5 10 25 50

U U U U

«Õ» «Ö» «×» «Ø»

The value is first displayed in gramme

Then press e.g. "5"

+ 5 g

5 10 25 50

U U U U

“Õ” “Ö” “×” “Ø”

The value is converted to items (PCS) and displayed or printed out

132 PRS/PRJ/ARS/ARJ-BA-def-0622

9.5 Setup for “SET APP PERCENT”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

Main menus” and Chapter 4.5 “How the menu control operates”.

• SETUP

APPLICATION

PERCENT DECIMALS AUTO

1 2 3

Enter number of decimal places for the percentage display

Using the “PERCENT” program you can display and print out the weight of different measurements as a percentage of a previously defined reference weight.

Place the reference weight on the weighing plate and press “SET” to set the reference weight to be 100 %.

• Function key legends:

“SET” Define the reference weight with the number of decimal places as defined in "Decimals"

• Display in the “PERCENT” application:

+ 13.456 g

SET

U U U U

“Õ” “Ö” “×” “Ø”

The value is first displayed in gramme

The press “SET”

+ 100,00 %

SET

U U U U

“Õ” “Ö” “×” “Ø”

The value is set as 100 %. All further values are then either displayed or printed out as a percentage of the defined reference weight.

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9.6 Setup for “SET APP CALCULATOR”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

CALCULATOR SET KEY 1

NAME nnnnn FACTOR n.nnn e+n DECIMAL PLACES n DISPLAY TEXT nnn PRINTER TEXT nnnnnnnn

SET KEY 2

NAME nnnnn FACTOR n.nnn e+n DECIMAL PLACES n DISPLAY TEXT nnn

PRINTER TEXT nnnnnnnn

SET KEY 3/4

same as for key 1 and 2

When activating the “CALCULATOR” application, each of the four function keys is first assigned a name, then a particular conversion factor, decimal place definition, display unit and unit for the printout.

• Display in the “CALCULATOR” application:

+ 123.456 g/M

NAME 1 NAME 2 NAME 3 NAME 4

U U U U

“Õ” “Ö” “×” “Ø”

The value is converted and printed out.

In programming mode, the previously defined key names are shown above the function keys.

After pressing a function key, the current value is converted in accordance with the assigned factor and the result is displayed or printed out after the print key is pressed.

In this way, for example, you can convert the weights of samples of a known size directly into “grammes per square metre” and these will be displayed.

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9.7 Setup for “SET APP PAPER”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

Setting the paper program is carried out in the same way as for the calculator. See Chapter 9.6 “Setup for “SET APP CALCULATOR”.

By using this program you can convert the weights of paper items with standard sizes (e.g. 100 cm2, 20 x 25 cm, A4, 40 x 25 cm) directly into “Grammes per square meter” and these will then be displayed.

• Display in the “PAPER” application:

+ 123.456 g/M2

100 20 x 25 A4 40 x 25

U U U U

“Õ” “Ö” “×” “Ø”

The value is converted and displayed or printed out.

This application is a special application of the calculator (see Chapter 9.6 “Setup for “SET APP. CALCULATOR“).

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9.8 Setup for “SET APP NET TOTAL”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

NET TOTAL

For this application there is no setup menu!

By using the working program “NET TOTAL” you can add individual weighings, whereby the balance is tared off to zero before each individual weighing.

• Function key legends:

“STO”: Accept stable value and then add to total of components

“RES”: Reset “INF”: Change to total weight, remaining capacity, individual components and back

to current value

Exit the INF display using the “esc” key

• Display for “NET TOTAL” application:

+ 70.456 g

STO 2 RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• Procedure, if display is changed with ”Ø”:

+ 100.579 g

Total 100.579 g RES INF

U U U U

“Õ” “Ö” “×” “Ø”

Display sequence:

TOTAL: 100.579 REM.-CAP.: 209.421 g “individual components”

+ 100.579 g

REM.-CAP.209.421 g RES INF

Exit with “esc”

U U U U

“Õ” “Ö” “×” “Ø”

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9.9 Setup for “SET APP TOTALISE”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

TOTALISE

For this application there is no setup menu!

By using the working program “TOTALISE” you can add individual weighings, whereby the balance is not tared off to zero before each individual weighing.

• Function key legends:

“STO”: Accept stable value and add “RES”: Reset “INF”: Change to total weight, remaining capacity, individual components and back

to current value

Exit the INF display using the “esc” key

• Display for “TOTALISE” application :

+ 70.456 g

STO 2 RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• Procedure, if display is changed with “Ø”:

+ 70.456 g

Total 70.456 g RES INF

U U U U

“Õ” “Ö” “×” “Ø”

Display sequence:

TOTAL: 70.456 g REM.-CAP.: 239.543 g “individual components”

+ 70.456 g

REM.-CAP.239.543 g RES INF

Exit with “esc”

U U U U

“Õ” “Ö” “×” “Ø”

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9.10 Setup for “SET APP ANIMAL WEIGHING”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

ANIMAL WEIGHING

MEASURING DURATION 4

Enter time period in seconds

By using the working program “ANIMAL WEIGHING” you can weigh living animals accurately, even when they move around on the weighing plate.

Throughout the measuring period as defined by the user in the setup menu, the scale measures continuously, then at the end of the measuring period it averages the stored values and then gives the resulting average value.

• Function key legends: “MAN”: Manual trigger for the measuring process “AUTO”: Automatic trigger for the measuring process with one

second delay after each change in load

“STO”: Statistics and store functions

• Display for “ANIMAL WEIGHING” application:

+ 56.879 g

MAN AUTO STO

U U U U

“Õ” “Ö” “×” “Ø”

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9.11 Setup for “SET APP DENSITY”

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

APPLICATION

DENSITY

MODE SOLID ON BOTTOM

MODE SOLID IN AIR MODE LIQUID MODE SOLID POROUS

Solid Solid Measure liquids

Porous solid

INDEX ON/OFF

Index on/off

REFERENCE 8000

Reference for INDEX

TIMEBASE 0.0

Timebase for repeat operation in seconds

REF. DENSITY 0.998205

Density of the liquid used for measurement (factory setting: water at 20 °C)

TEMPERATURE 20 C

Temperature in °C of the water to be used in the measurement

By using the “DENSITY” working program, you can carry out density determination.

• Function key legends on start-up:

“OK”: Accept current reference density “CAL”: Determine reference density of measuring liquid “T-H2o”: Set reference density of water at nn.n °C “20.0C”: Set reference density of water at nn.n °C

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• Display for “DENSITY” application on start-up

+ 0.9988205 g/cm

OK CAL T-H20 20.0C

U U U U

“Õ” “Ö” “×” “Ø”

• Function key legends during the weighing:

“AIR”, etc Request for measurement of the relevant value «<–>»: “switch over” from index to density “SET”: initiate the relevant step “STO”: store the relevant value (statistics)

• Function key legends during the weighing:

Step

+ 123.456

AIR SET

FLOOR SET

POROUS SET

LIQUID SET

DENSITY <—> STO

INDEX <—> STO

U U U U

«Õ» «Ö» «×» «Ø»

During operating steps (up to six may be necessary), the info-line shows the indications seen in this table.

If during step 5 or 6, the tare key “T” is pressed, then a reset is triggered. The program guides the user through the individual operating steps.

For further information see Chapter 13.2.

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9.12 Setup for the statistics program

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP

STATISTICS

MODE OFF MODE STATISTICS

MODE RECORDER MODE STAT./RECORDER

Statistics program only from statistics Only data storing stat. and storing

NUMBER 100

Number of values which should be collected automatically (1 … 999).

MANUAL COLLECTION

COLLECTION ON TIMEBASE COLLECTION ON LOAD

CHANGE

with function key “STO”

on timebase after every change in load

TIMEBASE 2.0

Timebase for “storing” in seconds

• Functions of the statistics program and storing functions:

• MODE

- In this function field, you can define whether only the statistics program, only the storing program or whether both programs are to be used at the same time.

• COLLECTION

- With “MANUAL” the function key “STO” must be pressed for every value which is to be stored.

- With “CHANGE IN LOAD”, the balance automatically stores the measured value after every change in load.

- With “TIMEBASE” the balance stores the measured value after each defined time period (factory setting: 2.0 seconds).

• TIMEBASE

- Definition of the time period for the collection of data according to “COLLECTION TIMEBASE” (e.g. every 2 seconds).

• NUMBER

- Definition of the number of values after which the store process should be automatically completed.

NOTE

When storing the first value, a range of ±50 % is defined. Subsequent values must be within this range, otherwise an error message will appear.

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• Function key legends for “Stat./Recorder”: “STO”: Accept value, Start/Stop of automatic collection

“END”: Permanently store accepted data (only with recorder activated) “RES”: Before starting a new measuring sequence, the store must be reset by using

“RES” . “INF”: Change the display to “Average value (AVERAGE)”, “Standard deviation

(STDDEV.)”: “Relative standard deviation (STDDEV.-%)”, “Maximum (MAX)”, “Minimum (MIN)”, Recorder values and back to “current value”

Exit the INF display using the “esc” key.

• Display in Statistics program

+ 123.456 g

STO RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• Display sequence, if changed with ”Ø”:

+ 123.456 g

AVERAGE 123.456 g

U U U U

“Õ” “Ö” “×” “Ø”

Display sequence:

AVERAGE: 123.456 g STDA.: 0.001 g STDA.-%: 0.01 g MAX.: 123.456 g

+ 123.456 g

STOR 0.001 g

U U U U

“Õ” “Ö” “×” “Ø”

“individual components”

Exit with “esc”

For further information on “Setting the Statistics function”, see the example in Chapter

12.2.2.

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9.13 Setup for CHECK weighing

To activate the menu see Chapter 7.4 “Activating the two main menus” and Chapter 7.5 “How the menu control operates”.

• SETUP CHECK +/-

CHECK +/-

MODE ON/OFF NOM. 100,000 g

TO 120,000 g TU 80,000 g

Switch application on/off Enter nominal weight

Define upper limit Define lower limit

By using the working program “CHECK +/-“ you can check each value to see if it matches a defined reference value, within permissible plus/minus deviations.

In the ”CHECK +/-“ application, the four function keys are not active. In the display “+”, “–“ and “ÖIIÕ” are active. Whenever “ÖIIÕ” is illuminated, the measured value is within the defined tolerances. The function of the signal lamp and the symbols in the Check-Weigher application are

defined as follows:

- Weight > = 50% of nominal value: symbol "-" and lamp "red"

- Weight TU to TO symbol ">||<" and lamp "green", signal sounds as soon as the weight is stabilised

- Weight > TO: symbol "+" and lamp "yellow"

NOTE

A signal lamp is available as an accessory for this type of display.

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10 Special operating keys

10.1 The Tare key “T”

• Initiate tare process

– Ensure that the balance is in the weighing mode – Briefly press “T” – The balance performs a tare operation.

10.2 The CAL key “CAL”

• Initiate a calibration process

– Ensure that the balance is in the weighing mode – Keep “CAL” pressed until “CALIBRATION” is displayed – Release “CAL” – The balance carries out a calibration in accordance with the settings in the

configuration menu (cf. Chapter 8.6 “Calibration functions”) and records these by means of a printout.

NOTE

A calibration process can be aborted using the “ON/OFF” key

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10.3 The Print key “PRINT”

• Print out an individual value or a report

– Ensure that the balance is in the weighing mode – Briefly press “PRINT” – The individual value or report will be printed out.

• Reset product counter to 1

– Ensure that the balance is in the weighing mode – Keep “PRINT” pressed until “RESET PROD.-COUNTER” is displayed – Release “PRINT” – The product counter will be reset to 1

• Print out a balance status

– Ensure that the balance is in the weighing mode – Keep “PRINT” pressed until “PRINT STATUS” is displayed – Release “PRINT” – The balance status will be printed out.

• Print out the application setup

– Ensure that the balance is in the weighing mode – Keep “PRINT” pressed until “PRINT APPLICATIONS” is displayed – Release “PRINT” – The application setup will be printed out.

10.4 The Change key « »

• Switch to other applications

– If you hold the « » key pressed down, all active applications will be displayed one

after another:

if e.g. statistics program, checkweigh program and the “COUNT” application are active, these will appear one after the other in the info-line: “WEIGHING”, “CHECK +/“, “STATISTICS”, “COUNT”.

– Release “ ”, when the application you require is displayed.

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11 Data transfer to peripheral devices

For data transfers to peripheral devices, the balance is equipped with an RS232/V24interface. Before the data transfer, the RS232 interface must be synchronised with the one in the peripheral device in the balance's configuration menu (see Chapter 8.8 “Interface functions”).

• Handshake

The handshake is set to “NO” (none) from the factory. It can be set to software handshake XON/XOFF, or to hardware handshake.

• Baud rate

Possible baud rates: 300, 600, 1,200, 2,400, 4,800, 9,600 baud.

• Parity

Possible parity: 7 even 1 stop, 7 odd 1 stop, 7 No 2 stop or 8 No 1 stop. 1 2 34 5 67 8SP

± 12 V SB 1 2 3 4 5 6 7 8 9

7 even 1 SB 1

DA 2nd

3rd DA 4th DA 5th DA 6th DA 7th DA PB SP

7 odd 1 SB 1

DA 2nd

3rd DA 4th DA 5th DA 6th DA 7th DA PB SP

7 no 2 SB 1

DA 2nd

3rd DA 4th DA 5th DA 6th DA 7th DA 1st SP 2nd SP

8 no 1 SB 1

DA 2nd

3rd DA 4th DA 5th DA 6th DA 7th DA 8th DA SP

SB: Start Bit PB: Parity Bit DA: Data Bit SP: Stop Bit

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11.1 Connection to peripheral devices

The balance can be connected to peripheral devices in three ways:

• Standard, duplex connection Balance RJ 45 D25 Peripheral device RS 232 out 2 3 RS 232 in RS 232 in 6 2 RS 232 out GND 5 7 GND

• Standard, duplex connection with additional hardware handshake in the

peripheral device

Balance RJ 45 D25 Peripheral device RS 232 out 2 3 RS 232 in RS 232 in 6 2 RS 232 out GND 5 7 GND CTS 3 20 DTR DTR 7 5 CTS

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11.2 Data transfer

Display

D7 D6 D5 D4 D3 D2 D1 D0 U U U

The data transfer takes place using ASCII code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ... ... ...

B B B S D7 D6 D5 D4 D3 D2 D1 DP D0 B U ... CR LF

Blank Space (space)

Sign Sign (+, -, space)

Decimal Point Decimal Point

D0...D7

Digits Digits

Unit Unit

Carriage Return Carriage Return

Line Feed Line Feed

NOTE

Unused positions are filled with spaces. The decimal point DP can be between D0 and D7.

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11.3 Remote-control commands

Command Function

ACK Acknowledgement n = 0 off; n = 1 on *CAL Start calibration (only where INT or EXT selected) DN Reset weight display

D.......... Describe weight display (right-aligned)

@N Reset info display

@......... Describe info display

In Set FLOATING DISPLAY time n

n=0 t=0.04 sec. n=1 t=0.08 sec. n=2 t=0.16 sec.

n=3 t=0.32 sec. N Reset balance OFF Switch off balance ON Switch on balance PCxxxx Enter anti-theft code PDT Print out date and time PRT Initiate printing (Press “Print” key) PST Initiate print status Pn (ttt.t) Set print mode

n = 0 Individually print each value (unstable) n = 1 Individually print stable value (stable) n = 2 Print after load change n = 3 Print after each integration time n = 4 Print on timebase in sec (ttt.t)

R%k Set current weight=100 %

with k=0...7 decimal places (k=A: use automatic positioning of decimal point)

REF%k rrr Set reference weight rrr for 100 %

with k=0...7 decimal places (k=A: use automatic positioning of

decimal point) Rnnn Set current weight=nnn items REFrrr Set reference weight rrr for 1 item

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Command Function

Sn Set stability n n=0 low

n=1 medium n=2 high

SDTttmmjjhhmmss

Set date and time (German) (Tag, Monat, Jahr, Stunde, Minute, Sekunde)

SDTmmddyyhhmmss

Set Date and Time (English) (Month, Day, Year, Hour, Minutes,

Seconds) T (ttt) Tare off or set tare to a specific value Uxnn Set unit x (1...4) of the balance with nn (0=g, 1=mg, 2=kg, ...) UxS Switch balance to unit x (1...4) ZERO Zero the balance (provided weight is stable and within the zero-

setting range)

NOTE

Each remote-control command must terminate with “CR” “LF”. The commands are acknowledged if required.

11.4 Examples for the remote control of the balance

Input Description of the initiated function

D – – – – – Five dashes will be shown D TEST123. Display will be: tESt123 D The display will be dark T100 -100.000g (tare set to 100 g) T1 -1.000 g (tare set to 1g) T Balance will be tared off

Table 8.5 Examples for remote control

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12 Practical examples

12.1 Changing the configuration menu

To activate the configuration menu see Chapter 7.4.1.

12.1.1 Setting the choice of language

In order to alter the display language, proceed as follows:

SPRACHE DEUTSCH

LANGUE FRANCAISE

LANGUAGE ENGLISH

• Press “Ø” repeatedly until the currently active language is displayed

• Press “ ”.

LANGUAGE ENGLISH

• The language then flashes

• Press “Ø” repeatedly until the required

language is displayed

SPRACHE DEUTSCH

• Press “ ” to confirm the language selection

12.1.2 Setting the Weight unit

In order to alter the weight unit, proceed as

follows:

UNIT 1 9

• Press “Ø” repeatedly until Unit 1 is displayed

• Press “ ”.

UNIT 1 9

• The display flashes

• Press “Ø” repeatedly until the required unit is

displayed

UNIT 1 mo

• Press “ ” to confirm the selection

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12.1.3 Setting the Print functions

In order to alter the print parameters proceed as follows:

SET DATA PRINT

• Press “Ø” repeatedly until “SET DATA PRINT” is displayed

AUTO-START ON

• Press ”Ö” to get into the function menu (“AUTO-START OFF“ or “AUTO-START ON” is displayed)

• Press “ ”.

AUTO-START ON

• The display flashes

• Press “Ø” to select between ”ON” and “OFF”

AUTO-START OFF

• Press ” ” to confirm the desired change

MODE STABLE

• Press ”Ø” to select the next function (MODE STABLE is displayed)

MODE STABLE

• The display flashes

• Press “Ø” until the parameter you require is

displayed (STABLE, UNSTABLE, LOAD CHANGE etc are displayed one after the other.)

MODE Load change

• Press ” ” to set the new parameter.

Press ”Ø” again to select the next function (“TIMEBASE 2.0” is displayed, then “SET PRINT FORMAT”, then back to “AUTOSTART ON” etc.). Using “

”, select the parameter which you would like to change. Change the values in the same way as described for the "AUTOSTART" and "MODE" functions, and confirm the changes each time with “

”.

152 PRS/PRJ/ARS/ARJ-BA-def-0622

12.1.4 Activation of password protection

The possibilities for setting the password protection are described in Chapter 8.10 “Password protection”. In order to activate password protection, proceed as follows:

PASSWORD ––––

• Press ”Ø” repeatedly until “PASSWORD----“ is displayed

PASSWORD 0000

• Press “ ”. The first digit of the password “---- “ appears.

• Press ”Ø” repeatedly until the first digit of the password is correctly displayed.

PASSWORD 6000

• Press “Ö”.

• Then the second digit of the password

flashes.

PASSWORD 6100

• Press ”Ø” repeatedly until the second digit of the password is correctly displayed.

• In the same way, enter the third and fourth digit of the password.

• When you have entered all four digits, press “ ”.

• Press “Ö”

DATA PROTECTION OFF

• The current data protection status is now displayed: “DATA PROTECTION OFF” or “DATA PROTECTION MEDIUM” or ”DATA PROTECTION HIGH”.

• Press “ ”.

DATA PROTECTION OFF

• The display flashes

• Press “Ø” repeatedly to change the password

status

DATA PROTECTION MEDIUM

• Press “ ” to store the entry

In order to alter the password, proceed as follows.

• Enter the password and press “Ö”

DATA PROTECTION MEDIUM

• The current data protection status is then displayed

• Press “Ø”

PASSWORD NEW - - - -

• Enter the new password (procedure as described above)

DATA PROTECTION MEDIUM

• Press “ ” to store the entry

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12.2 Selecting an application program

To activate an application menu see Chapter 7.4.2.

12.2.1 Setting for Counting by weighing

For setup see Chapter 9.4 “Setup for “SET APP. COUNT”” To count uniformly heavy objects such as coins, screws or similar things, proceed as

follows:

• Activate the application menu

SET APP. OFF

• Press “Ø” repeatedly until “SET APP. OFF” is displayed

• Press “ ”.

SET APP. OFF

• The display flashes

• Keep pressing “Ø” until “SET APP. COUNT”

is displayed

SET APP. COUNT

• Press “ ” to confirm the application selection

• Press “Ø”

SETUP APPLICATION

• “SETUP APPLICATION” is displayed.

• Press “Ö”

KEY – 1 5

• “Key – 1 5” is displayed (assigning reference quantity)

• Press “Ø”

KEY – 2 10

• “Key – 2 10” is displayed.

• Press “ ”

KEY – 2 10

• The display flashes

• By pressing “Ø” and “×” you can alter the

value

KEY – 2 8

• Press “ ” to store the new value.

154 PRS/PRJ/ARS/ARJ-BA-def-0622

When you have adjusted the values for “KEY 3” and “KEY 4” in the same way, press “MENU” to go back to weighing mode.

The balance then displays “0.00 g”. By holding the Change key “ ” depressed for a longer period of time, you can switch to

“COUNT”. The following display appears:

0.000

5 8 25 50

U U U U

“Õ” “Ö” “×” “Ø”

• Place five of the items to be counted (e.g. paper clips) on the weighing plate

3.720

5 8 25 50

U U U U

“Õ” “Ö” “×” “Ø”

• Press “5” (allocated reference quantity = 5)

PCS

5 8 25 50

U U U U

“Õ” “Ö” “×” “Ø”

• The weight is then converted and displayed in items (PCS)

237

PCS

5 8 25 50

U U U U

“Õ” “Ö” “×” “Ø”

• Then place all items to be weighed on the weighing plate

• The quantity is then displayed

NOTE

Depending on the weight and tolerances of the objects to be counted, you should count a representative number of items to determine the reference weight.

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12.2.2 Setting the statistics function

To store measured values and then be able to evaluate these statistically, proceed as follows:

• Activate the application menu

SET STATISTICS

• Press “Ø” repeatedly until “SET STATISTICS” is displayed

• Press “Ö”

MODE OFF

• The display changes to “MODE OFF”

• Press “ ”

MODE OFF

• The display flashes

• Press “Ø” repeatedly

• “MODE STATISTICS”, “MODE

STAT./RECORDER” and “MODE OFF” etc are displayed

MODE STATISTICS

• Define the application (see Chapter 9.12 “Setup for the statistics program”) and store with “ ”

• Press “Ø”

QUANTITY 100

• “Quantity 100” is displayed

• Press “ ”

QUANTITY 100

• The display flashes

• Press “Ø” or “×” as many times as necessary

until the required quantity (max. 999) is displayed and press

QUANTITY 3

• ““ to store your selection

• Press “Ø”

MANUAL COLLECTION

• “MANUAL COLLECTION” is displayed

• Press “ ”

MANUAL COLLECTION

• The display flashes

• Press “Ø” repeatedly until the required

method of storing is displayed and press

COLLECTION ON LOAD CHANGE

• ““ to store your selection

Press “MENU” to return to weighing mode. The balance then displays “0.00 g”. If you hold the Change key “ ” depressed, then you will see “COUNT”, then

“STATISTICS”, then “WEIGHING”, then “COUNT” again, etc. appear one after the other in the info-line.

156 PRS/PRJ/ARS/ARJ-BA-def-0622

Hold the Change key depressed until “STATISTICS” is displayed and then release the key. This display appears:

0.000

STO 0 RES INF

U U U U

“Õ” “Ö” “×” “Ø”

8.050

STO 1 RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• Place the first item (e.g. a pencil) on the weighing plate

• Start the collection with “STO 0”.

8.150

STO 2 RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• Place the second item on the weighing pan.

7.820

STO 3 RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• Place the third item on the weighing pan.

You can then recall the statistical parameters. Press “Ø”. The following display appears (average value):

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0.000

AVERAGE 8.006 g

U U U U

“Õ” “Ö” “×” “Ø”

• Press “Ø” repeatedly to recall the statistical parameters one after the other

0.000

STOA. 0.169 g

U U U U

“Õ” “Ö” “×” “Ø”

• Standard deviation

0.000

STOA. % 2.11 %

U U U U

“Õ” “Ö” “×” “Ø”

• Relative standard deviation

0.000

MAX.: 8.150 g

U U U U

“Õ” “Ö” “×” “Ø”

• Maximum value

0.000

MIN. 7.820 g

U U U U

“Õ” “Ö” “×” “Ø”

• Minimum value

• Press “esc” to exit the info

display.

0.000

STO RES INF

U U U U

“Õ” “Ö” “×” “Ø”

• “RES” will reset the memory. The balance is ready for the next measuring sequence.

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13 Further information

13.1 Notes on Weighing mode

13.1.1 Set Weighing mode: Floating display

The value set for the Floating display defines the period after which each new measurement is displayed. When defining this time period, the quality of the balance location is crucial. The stability control must also be appropriately selected.

Recommended values:

• Optimal balance location: FLOATING DISPLAY 0.04 or FLOATING DISPLAY 0.08

• Good balance location: FLOATING DISPLAY 0.16

• Critical balance location: FLOATING DISPLAY 0.32

NOTE

The value of the Floating Display is related to the stability control and the balance location.

13.1.2 Set Weighing mode: Stability control

The value set for stability control depends on the quality of the balance location and must be correctly selected in order to obtain optimal, reproducible results. Select:

• “HIGH STABILITY” at an optimal balance location,

• “MEDIUM STABILITY” at a good balance location or

• “LOW STABILITY” at a critical balance location

PRS/PRJ/ARS/ARJ-BA-def-0622 159

13.1.3 Set Weighing mode: Auto-Standby

The Auto-Standby mode turns off the balance automatically, if:

• the balance is tared off and has shown “Zero” for at least 5 minutes,

• the balance has received no remote control command via the interface for at least 5

minutes,

• the automatic zero correction “Auto-Zero” is activated.

These are the options for re-start the balance after it has been switched off by automatic Auto-Standby:

• Briefly depress any key

• Put a weight on the scale

• Give a remote control command via the interface

13.1.4 Set Weighing mode: Auto-Zero

If the automatic zero correction “Auto-Zero” is activated, the balance always gives a stable zero (e.g. even with room temperature fluctuations).

160 PRS/PRJ/ARS/ARJ-BA-def-0622

13.2 Notes on density determination

Using the “Density” working program, you can determine the density of solids and liquids (with accessories for density determination).

For this, you can choose from various methods of weighing.

NOTE

Determination of density using a density set is described in the following chapters 13.1.6 –

13.1.9. Various models are available for the PRx/ARx models.

Balance model Density set model

ARJ../ ARS.. AR-A01 PRJ../PRS.. PR-A02

13.2.1 Density determination “Solid on bottom mode”

The reference liquid (water) which has been temperature-adjusted, is placed on the weighing pan and tared. Then the solid is placed into the liquid and weighed. Then the solid is suspended in such a way that it is still completely in the water, but no longer touches the bottom. It is weighed again.

The balance can determine the density of the solid from the weights taken.

13.2.2 Density determination “Solid in air mode”

With this weighing method, the solid is weighed through suspended weighing (see Chapter 6.11 “Suspended weighing”). Then the solid is submersed in the reference liquid (water) which has been temperatureadjusted, and the solid does not touch the weighing pan floor, but is nevertheless still completely in the water. It is now weighed again.

The balance can determine the density of the solid from the weights taken.

13.2.3 Density determination “Liquid mode”

With this weighing method you can determine the density of a liquid. The procedure is the same as for density determination in “solid in air” mode. A piece of solid glass with a volume of 10 cm3 or 100 cm3 is used as a solid.

13.2.4 Density determination “Porous solid mode”

With this weighing method you can determine the density of a porous solid. To be able to carry out such measurements, you will need the density determination set. The procedure for measuring density is described in the operating instructions included with the set.

PRS/PRJ/ARS/ARJ-BA-def-0622 161

14 Configuration menu tree

• Press “ON/OFF” to switch the scale on.

• During the start-up sequence (about 10 seconds), keep the “MENU” key

depressed until “SET CONFIGURATION” is displayed.

• SET KONFIGURATION

FACTORY CONFIG. USER CONFIG.

STORE CONFIG.

• UNIT 1

UNIT 1 g

mg kg GN dwt ozt oz Lb ct C.M tlH tlM tlT mo

t Bht

• SET DATA PRINT

AUTO-START ON/OFF MODE UNSTABLE

MODE STABLE MODE LOAD CHANGE

MODE CONTINUOUS

MODE TIMEBASE TIMEBASE 2.0

162 PRS/PRJ/ARS/ARJ-BA-def-0622

SET PRINT FORMAT

DATE AND TIME ON/OFF BALANCE ID ON/OFF PRODUCT ID ON/OFF GROSS AND TARE ON/OFF UNITS ON/OFF OPERATOR ID ON/OFF PRODUCT ttt... PRODUCT MODE HOLD PRODUCT MODE DELETE PRODUCT MODE COUNT OPERATOR ttt...

• SET CALI BRATION

MODE OFF MODE EXTERNAL MODE EXT.-DEF. MODE INTERNAL

MODE AUTO

DEF. 0.000 0.000

AUTOCAL. TIME/TEMP. AUTOCAL. TEMPERATURE

AUTOCAL. TIME AUTOCAL. TIME 6 h

• SET WEIGHING MODE

FLOATING DISPLAY 0.04 FLOATING DISPLAY 0.08 FLOATING DISPLAY 0.16

FLOATING DISPLAY 0.32

STABILITY LOW STABILITY MEDIUM STABILITY HIGH AUTO-STANDBY OFF AUTO-STANDBY 5 MIN AUTO-STANDBY 10 MIN AUTO-STANDBY 30 MIN

AUTO-ZERO ON/OFF QUICK TARE ON/OFF

PRS/PRJ/ARS/ARJ-BA-def-0622 163

• SET - INTERFACE

BAUD RATE 300 BAUD RATE 600 BAUD RATE 1200 BAUD RATE 2400 BAUD RATE 4800

BAUD RATE 9600 BAUD RATE 192000

PARITY 7 EVEN 1STOP PARITY 7 ODD 1STOP PARITY 7 NO 2STOP PARITY 8 NO 1STOP HANDSHAKE NO HANDSHAKE XON-XOFF HANDSHAKE HARDWARE

• SET DATE AND TIME

(only PRJ/ARJ models)

TIME [HH.MM.SS] DATE [DD.MM.YY] FORMAT STANDARD/US

• PASSWORD

PASSWORD ––––

DATA PROTECTION OFF DATA PROTECTION MEDIUM DATA PROTECTION HIGH

NEW PASSWORD – –

–

• THEFTCODE

THEFTCODE ––––

THEFT PROTECTION OFF THEFT PROTECTION ON

NEW CODE – – – –

• KEY TONE

KEY TONE

KEY TONE OFF KEY TONE ON

• LANGUAGE

LANGUAGE ENGLISH

SPRACHE DEUTSCH

LANGUE FRANCAISE

164 PRS/PRJ/ARS/ARJ-BA-def-0622

15 Application Menu Tree

• Press “MENU” after the start-up sequence is complete, in order to get into the

application menu.

• SET APP.

OFF

UNITS

COUNT

PERCENT

CALCULATOR

PAPER

NET TOTAL

TOTALISE

ANIMAL WEIGHING

DENSITY

• SETUP APPLICATION

Structure depends on the current application, (see Chapter 9 “Working with the application menu”)

• SET STATISTICS

MODE MODE MODE MODE

OFF

STATISTICS RECORDER

STAT./RECORDER

QUANTITY

100

COLLECTION COLLECTION COLLECTION

MANUAL

TIMEBASE

LOAD CHANGE

• SET CHECK +/-

MODE ON/OFF NOM.

100.000 g

120.000 g

80.000 g

• AUTO-START

AUTO-START ON/OFF

PRS/PRJ/ARS/ARJ-BA-def-0622 165

15.1 Software updates via Internet

Software updates are available via the internet

http://www. prs.kern-sohn.de http://www. prj.kern-sohn.de http://www. ars.kern-sohn.de http://www. arj.kern-sohn.de

Loading these software updates onto the balance ensures that your balance always contains the latest functions or function upgrades.

16 Servicing, maintenance, disposal

16.1 Cleaning

Please disconnect the device from the operating voltage before cleaning.

Only use a cloth dampened with mild suds and not aggressive cleaning agents (solvents or similar). Please ensure that fluids are not able to get into the device and rub off using a clean, soft cloth. Loose sample residue/powder can be removed carefully using a brush or hand vacuum cleaner.

Remove any spilt goods immediately.

16.2 Servicing, maintenance

The device may only be opened by trained service engineers authorised by KERN. Disconnect from the mains supply before opening.

16.3 Disposal

The operating company shall dispose of the packaging and the device in compliance with the valid national or regional law in the area of operation.

166 PRS/PRJ/ARS/ARJ-BA-def-0622

17 Troubleshooting

The balance should be switched off for a short time following any errors in the programming process and disconnected from the mains supply. It is then necessary to start the weighing process again from the beginning.

Help:

Fault Possible cause

Weight display is not illuminated.

• The balance is not switched on.

• The mains supply connection has been interrupted

(mains cable not plugged in/faulty).

• Power supply interrupted.

The weight display changes continually

• Draught/air movement

• Table/floor vibrations

• The weighing plate is in contact with foreign

matter.

• Electromagnetic fields / static charging (choose different location/switch off device which is causing the interference if possible)

The weighing result is obviously incorrect

• The balance display is not set to zero

• Calibration is no longer correct.

• Great fluctuations in temperature.

• Electromagnetic fields / static charging (choose

different location/switch off device which is causing the interference if possible)

Switch the balance off if other error messages should appear and then switch on again. Contact the manufacturer if the error message does not disappear.

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18 Error messages and correction of faults

The balance shows a description of the fault in the info-line.

NOTE

If an error occurs without a description of the error in the info-line, a KERN Service Engineer must be called.

18.1 Notes on correcting faults

The following table shows faults and their possible causes. If you cannot clear the fault on the basis of the table, please contact a KERN Service Engineer.

Fault Possible causes

Weight display does not light

Balance not switched on Connection to power adaptor is interrupted Power supply has failed (interruption to current)

The power adaptor is defective “OL” is shown in the display

The weighing range has been exceeded (Note the information on the

maximum weight range) “UL” is shown

in the display

The weight is below the range of the balance (weighing pan or scale

pan support missing) The weight display

fluctuates continually

The draught is too strong at the balance location

The balance support is vibrating or varying

The weighing pan is touching a foreign body

The time chosen for FLOATING DISPLAY is too short

The material being weighed is absorbing moisture

The material being weighed is being blown away, is evaporating or is

subliming

Strong temperature variations in the material being weighed Weighing result is obviously

incorrect

The balance was not correctly tared

The balance has not been levelled correctly

The calibration is no longer correct

There are strong variations in temperature

168 PRS/PRJ/ARS/ARJ-BA-def-0622

Fault Possible causes

There is no display or only dashes

The stability control (Balance functions) is set too sensitively The time selected for Floating display is unsatisfactory

Configuration menu cannot be altered

The password lock is activated in the configuration menu

The display flashes continuously during calibration

The balance location is not stable (abort calibration by switching off using “ON/OFF” key and then install the balance at a more suitable location). Use of an imprecise calibration weight (only applies to external calibration)

KERN PRS, PRJ, ARS, ARJ Operating Instruction

Specifications and Main Features

Frequently Asked Questions

User Manual