KERN CXB-SH-e-0913 Manuel utilisateur

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

Counting scales

KERN CXB

Version 1.3

4/2009

CXB-SH-e-0913

GB KERN CXB

Version 1.3 4/2009

Service manual

Counting scales

Table of Contents

1Basic information _______________________________________________ 3

2Introduction____________________________________________________ 4

3General Information _____________________________________________ 4

4Error messages_________________________________________________ 5

5Explanation of display ___________________________________________ 6

5.1 Symbol indicator _________________________________________________ 7

6Explanation of keyboard _________________________________________ 8

7External calibration______________________________________________ 9

7.1 Calibration of non-approval models (CXB) ____________________________ 9

7.2 Back to the original value of calibration_______________________________ 9

7.3 Calibration of approval models (CXB-M) _____________________________ 10

8Service mode access ___________________________________________ 11

9Linearity calibration ____________________________________________ 12

10 Spec. calibration _______________________________________________ 15

10.1 Reference values for capacity setting _______________________________ 17

11 Temperature calibration_________________________________________ 18

11.1 Indoor air (normal) temperature calibration___________________________ 18

11.2 High temperature calibration_______________________________________ 19

11.3 Low temperature calibration _______________________________________ 20

11.4 Check / Delete temperature calibration data __________________________ 20

12 Spare parts ___________________________________________________ 21

2 CXB-SH-e-0913

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.

CXB-SH-e-0913 3

2 Introduction

1. There are 3 ways to rectify the linearity for setting the temperature calibration,

which can make the scale more accurate.

nInside air temperature (normal temperature)

oHigh temperature

pLow temperature

♦It is adequate to only do the inside air temperature calibration. Upon the

customer’s request, we also offer the high temperature and low temperature

calibration as well.

2. Sampling speed is also depended on the user’s need (01~05).

3. Linearity calibration, capacity setting and temperature calibration can be set

separately.

4. Weighing unit: g or kg (depending on model)

5. Tare range is full range tare.

3 General Information

1. The newly manufactured scale without passing the calibration and setting process

will automatically enter the linearity calibration mode. After the linearity calibration

procedure is done, the program will automatically enter the Specification Setting

Mode.

2. Zero Range

The internal value should be in between 120,000~250,000 with the platter on

and without any load (check Æsee chapter 10 “Spec. calibration”)

3. Maximum Capacity

The internal value should be over 300,000 when the scale is fully loaded.

4. When rubbing the tetragon, the inaccuracy value should be smaller than 10

divisions.

5. Tare range is full range tare.

4 CXB-SH-e-0913

4 Error messages

Non-approval models:

E1 ⇒ZERO over 300,000 internal value.

E2 ⇒ZERO below 10,000 internal value.

Approval models:

E1 ⇒ZERO over the zero position in weight calibration + 10% of full scale.

E2 ⇒ZERO over the zero position in weight calibration - 10% of full scale.

All models:

E4 ⇒ZERO is unstable.

E5 ⇒Turning on machine core value is under 0.

E6 ⇒Core value is over 250,000.

E7 ⇒Core value is below 120,000.

- - OL - ⇒The weighing range is exceeded.

NOTES:

•Non-approval models (CXB): After E1, E2 or E4 is displayed press

to continue.

•Approval models (CXB-M): After E1, E2 or E4 appear, set the jumper SWA1

on main board to “ADJ” position and press to return the counting

mode.

Then press + + at the same time followed by pressing

to access calibration (see chap. 7.3).

CXB-SH-e-0913 5

5 Explanation of display

Weight Reference weight

Loading status display Pieces

6 CXB-SH-e-0913

5.1 Symbol indicator “3”

Display weight

Here, the weight of your goods is displayed.

Overlay Windicates:

Æ0ÅZeroing display

PRE-

TARE Tare in memory

Battery very low

Display reference weight

The reference weight of a sample is shown here. This value is either entered by user

of calculated by balance.

Overlay Windicates:

Placed number of pieces insufficient for reference calculation

Placed reference weight insufficient for reference calculation

Display quantity

Here, all the parts placed on balance are immediately displayed by number.

Overlay Windicates:

M+ Data in summation memory

Stability display

Battery charge status display

red Battery is almost discharged

green Battery is completely discharged

CXB-SH-e-0913 7

6 Explanation of keyboard

Choice Function

- •Number keys

•Delete key

•Call counting with tolerance control

•Store reference weights in memory

•Call stored reference weights

•Addition in total memory

•Call up total memory

•Delete summation memory

•Enter reference weight through weighing

•Display reference weight stored last

•Enter target number of pieces

•Numeric entry reference weight

•Display reference weight stored last

•Enter target weight

•Zeroing key

•Back to weighing mode

•Taring key

•Enter numerical tare

8 CXB-SH-e-0913

7 External calibration

7.1 Calibration of non-approval models (CXB)

♦Before calibrating, adjust the mini jumper SWA1 to “ADJ” position (see chap. 8)

♦Observe stable environmental conditions. A warming up time of 30 minutes is

required for stabilization.

Operation

Ensure that there are no objects on the weighing plate.

PRE-

TARE

Press the key and keep it pressed down whilst simultaneously operating the

key

Weight value of calibration weight is flashing on display. However, you may enter a

value of your choice via the number keys. *

3000

PRE-

TARE

CAL

Carefully place calibration weight in the centre of the weighing plate. Calibration

will be carried out automatically after dead stop control.

Remove calibration weight during count down to zero.

The balance returns automatically into weighing mode. An error message will

appear on the display should a calibration error occur or should the calibration

weight be incorrect. Turn balance off, then restart it and repeat the calibration

process.

* The calibration should be made with the recommended calibration weight (see

chap. 1 "Technical data" in the operating manual).

Note

Use the key to exit calibration mode. The balance returns to weighing mode.

7.2 Back to the original value of calibration

(only non-approval models)

nPress and hold key followed by pressing key until the scale is counting

backward to zero, then release it.

oThe scale will show the original value, which is the value setting at the factory.

CXB-SH-e-0913 9

7.3 Calibration of approval models (CXB-M)

♦Before calibrating, adjust the mini jumper SWA1 to “ADJ” position (see chap. 8)

♦Observe stable environmental conditions. A warming up time of 30 minutes is

required for stabilization.

Operation

Ensure that there are no objects on the weighing plate.

ÖPress + 1+ 5keys

ÖPress key

The display shows:

0.000

M+

(Example)

ÖPress key

The display shows:

15.000

(Example)

M+

Weight value of calibration weight is flashing on display.

ÖCarefully place calibration weight in the centre of the weighing plate.

ÖPress key

Calibration will be carried out automatically after dead stop control.

ÖRemove calibration weight during count down to zero.

The balance returns automatically into weighing mode. An error message will

appear on the display should a calibration error occur or should the calibration

weight be incorrect. Turn balance off, then restart it and repeat the calibration

process.

194452

* The calibration should be made with the recommended calibration weight (see

chap. 1 "Technical data" in the operating manual).

10 CXB-SH-e-0913

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