KERN FKT Bedienungsanleitung

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

Service manual

Touch screen –

Industrial and laboratory scales

KERN FKT / IKT / PKT

FKT_IKT_PKT-SH-e-1230

Version 3.0

1/2012

2 FKT_IKT_PKT-SH-e-1230

GB KERN FKT / IKT / PKT

Version 3.0 1/2012

Service Manual

Touch screen - Industrial and laboratory scales

Table of Contents

1Basic Information .......................................................................................................3

2Introduction.................................................................................................................3

3Menu-Map....................................................................................................................4

4Troubleshooting .........................................................................................................5

5Adjustment..................................................................................................................6

6Service Menu ..............................................................................................................7

6.1 How to Enter the Service Menu ............................................................................................7

6.2 Factory Reset .........................................................................................................................8

6.3 Factory Adjustment ...............................................................................................................9

6.4 Linearity Adjustment ...........................................................................................................11

6.5 Geo Value .............................................................................................................................13

6.6 Serial Number.......................................................................................................................14

6.7 Clear Passwords..................................................................................................................15

6.8 Remark..................................................................................................................................15

7Electronics ................................................................................................................16

FKT_IKT_PKT-SH-e-1230 3

1 Basic Information

Grundlegende Hinweise

The device must be repaired only by trained specialist staff or personnel with

professional formation (such as a repair-specialist accredited by law

concerning verification).

The service manual is obligatory for repair work.

After repair, original conditions of the device have to be restored.

Only original spare parts should be used.

Instructions about conformity-evaluated scales:

Repair must be carried only at 100% compliance with the type approval.

A violation of this specification will result in a loss of the type approval!

After successful repair the balance will have to be reverified before it can be used

again in a statutorily regulated field.

Das Gerät darf nur von geschultem oder beruflich ausgebildetem

Fachpersonal (z. B. eichrechtlich anerkannter Instandsetzer) repariert werden.

Die Serviceanleitung ist bindend für Reparaturen.

Das Gerät muss nach erfolgter Reparatur wieder in den Originalzustand

zurückversetzt werden.

Es dürfen nur Originalersatzteile verwendet werden.

Hinweis zu konformitätsbewerteten Waagen:

Reparatur darf nur in 100% -iger Übereinstimmung mit der Bauartzulassung erfolgen.

Ein Verstoß gegen diese Vorgabe führt zum Erlöschen der Bauartzulassung!

Nach erfolgreicher Reparatur muss eine Nacheichung erfolgen, um die Waage wieder im

gesetzlich geregelten Bereich verwenden zu können.

2 Introduction

This service manual covers the FKT, IKT and PKT series and is edited for the authorized

servicing personnel.

Note all rights are reserved. Copying any part of this manual is prohibited without our

permission.

4 FKT_IKT_PKT-SH-e-1230

3 Menu-Map

FKT_IKT_PKT-SH-e-1230 5

4 Troubleshooting

Interruption Possible cause

– – – – – –

•Overload: The scale is overloaded

•Underload: Weighing range has been fallen short of

•Mechanical defect

– – – – – –

– – – 92,6 g

(unstable negative value)

•Low voltage: Check power supply

•The batteries are empty and should be replaced

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 interfering device if possible)

The weighing result is obviously incorrect

•

The balance display is not set to zero

•

Adjustment is no longer correct

•

Great fluctuations in temperature

•Electromagnetic fields / static charging (choose different

location/switch off interfering device if possible)

Should other error messages occur, switch balance off and then on again.

If the error message remains inform manufacturer.

6 FKT_IKT_PKT-SH-e-1230

5 Adjustment

The balance must be adjusted at its place of installation before initial use and at regular

intervals.

A warm-up time of about 4 hours is recommended for stabilisation.

Please use the recommended adjusting weight according to the technical data in the

operating instruction.

Remark: The adjusting of verification balances (FKT-Mand IKT-M) is only possible when

not being blocked by the adjusting switch.

The switch for this step is located at the bottom of the housing like shown below.

FKT IKT – Display device

Verification of the balance is invalid without the "seal".

1. Turn ON the balance.

2. Press the [MENU/CAL] key. Then press the [Adjustment]key to start the

adjustment procedure.

3. The display appears:

FKT_IKT_PKT-SH-e-1230 7

4. After a short time the display appears:

5. Now set the required adjusting weight in the centre of the weighing plate.

6. After a short time balance will return into weighing mode automatically.

7. Remove adjusting weight.

6 Service Menu

6.1 How to Enter the Service Menu

1. Turn ON the balance.

2. Press the [MENU/CAL] key.

3. Press the [ ▼] key, then press the [Service] key.

4. The display appears:

8 FKT_IKT_PKT-SH-e-1230

5. Enter the password [ 1 0 1 ] and confirm with [ENTER] key.

6.2 Factory Reset

Reset the application settings to factory settings, e.g. language, basic settings, weighing

technology settings etc., with [Factory reset] key and confirm with [ENTER] key.

(

FKT_IKT_PKT-SH-e-1230 9

6.3 Factory Adjustment

1. Press the [Factory adjust] key.

2. With empty weighing pan press the [Zero point adjustment] key and wait until

the display appears the stability mark .

(

10 FKT_IKT_PKT-SH-e-1230

3. Now select [Factory adjust] again, place the maximum weight on the weighing

pan and after that press the [Ref. Weight adjustment] key.

4. Balance measuring for approx. 1-2 minutes.

5. After that the display appears the stability mark .

6. Remove the weight.

(

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