KERN EC Series Manual de usuario

EC-BA-defs-0113 17

GB KERN EC Series

Version 1.3 10/01

Operating Instructions

Electronic Precision Balances

Contents

1 TECHNICAL DATA 18

2 INTRODUCTION TO KERN EC COUNTING BALANCES 19

3 UNPACKING AND ACCESSORIES 19

4 SETTING UP 19

5 LEVELLING 20

6 ELECTRICAL SUPPLY 20

7 DECLARATION OF CONFORMITY 21

8 EXTERNAL VIEW & NAMES OF PARTS 22

9 INSTALLATION 23

10 COUNTING OPERATION 24

11 FUNCTIONS 25

12 PARAMETER LIST OF FUNCTIONS 26

13 SPAN ADJUSTING 27

14 IMPORTANT INFORMATION 28

15 TROUBLESHOOTING 29

18 EC-BA-defs-0113

1 Technical Data

KERN EC 600-2 EC 6000-1 EC 12K 1

Readability Limit (d) 0.02 g 0.2 g 1 g

Weighing Range 600 g 6000 g 12 kg

Taring Range 600 g 6000 g 12 kg

Reproducibility 0.01 g 0.1 g 1 g

Linearity

0.02 g

0.2 g

2 g

Adjustment weight 300 g (M1) 3000 g (M1) 5000 g (M2)

Weighing Platform

∅

140 mm 190 x 190 mm

Dimensions 200 x 300 x 80 mm

Weight 2.8 kg 3.5 kg 3.5 kg

Air Humidity 0° C to 40° C

Units g

Recommended Smallest

Unit Weight

10 mg 0.1 g 0.3 g

Display Range in Pieces 0 to 300,000 pcs 0 to 240,000 pcs

Accu optional

Interface RS 232 C serial port (optional)

EC-BA-defs-0113 19

2 Introduction to KERN EC Counting Balances

Your KERN EC counting balance is the most convenient instrument for piece

counting. Preparation before counting objects is simply loading 10 or 30 pieces

sample on the balance and pressing "10" key or "30" key.

Your KERN EC does not require adjusting in long term operation. Adjusting is

required only when it is relocated, not before daily operation.

3 Unpacking and Accessories

Carefully unpack the balance and keep the packaging for possible future use when

transporting the balance.

You should find included in the package:

• Balance

• Weighing platform

• Support for the weighing platform

• Mains adapter

• Operating instructions

4 Setting Up

Place the pan base packed with the weighing pan on the balance. Fix it on the shaft

by driving the knurled nut in the centre. Place the weighing pan properly on the pan

base.

20 EC-BA-defs-0113

5 Levelling

Watch if the balance is level. Locate the level in front of the balance and four

adjusting legs beneath it. Drive these legs to centre the bubble in the red circle of the

level. Watch if all legs are settled on the table securely. See (b).

6 Electrical Supply

The mains Adapter should only be connected to a 230 V / 50 Hz electrical supply. Do

not connect to any other mains voltages unless another mains voltage is specifically

given on the Model label.

The plug must be grounded according to VDE regulations.

Attach the adapter cable to the rear of the balance.

Only then:

Plug the mains adapter (230 V AC / 9 V DC / 400 mA) in the socket.

Adjust the balance, see chapter 11 "Span Adjusting".

EC-BA-defs-0113 21

7 Declaration of conformity

Declaration of Conformity

The electronic precision balances

Type: KERN EC-600-2

KERN EC-6000-1

KERN EC-12 K1

Correspond to the production mode described in the EC type-approval certificate

and to requirements of the following EC directives:

EC Council Directive on

Electromagnetic

Compatibility

Version 89/336/EC

Applied harmonised norms, in particular

EN 50081-1, EN 50082-1

If a change is made to the above mentioned appliances without consulting KERN

this declaration will become invalid.

Datum: 02. May 1997 Signature:

Gottl. KERN & Sohn GmbH

Management

Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72322 Balingen-Frommern, Tel. +49-07433/9933-0,Fax +49-07433/9933-149

22 EC-BA-defs-0113

8 External View & Names of Parts

Key Functions

OFF

: ON/OFF key for power.

MODE : Key for changing display, pcs, weight or unit weight. Also for

calling function, for storing parameters, for setting digits of

parameters.

10 : Key for sampling unit weight with 10 samples.

30 : Key for sampling unit weight with 30 samples.

TARE : Key for tare. Also for election of parameters.

EC-BA-defs-0113 23

Characters

g, kg, lb : Weight unit in weighing.

P : Indication of pieces in counting mode.

: Total sample weight on the pan is too light to process an

accurate unit weight.

: Indicates battery has run out (option).

M : Indicates the balance is under setting operation, or sampling.

Upper : Appears when other weight unit than "g" or "lb" is selected.

It is recommended to stick a seal of the weight unit at the mark.

Lower : Indicates the balance mode is in Unit Weight Display Mode.

9 Installation

Location

KERN EC balances are very robust, still it is an "precision weighing instrument"

which requires gentle operation and handling with care. Install the unit in good

conditions for optimum results. Locations as follows may cause erroneous results.

1. Areas having a soft floor to make the balance

not level.

2. Areas where temperature changes abruptly.

3. Areas in high humidity or dusts.

4. On an unstable base or near to a source of

vibration.

5. Areas exposed to a wind from a fan or a

cooler.

6. Areas exposed to direct sunlight.

24 EC-BA-defs-0113

10 Counting Operation

1. Tare the balance by pressing the T key.

Display: Exactly 0 p.

If otherwise displayed, press MODE key

once or twice to read exactly 0 p.

2. Place samples pre-counted, 10 pieces or

30 pieces on the pan.

Press 10 key or 30 key corresponding to

the sample quantity.

3. The display turns blank while lighting small

M mark on the left.

Then a "piece" display, 10 p or 30 p

appears while the M mark disappears. Now

the unit weight is processed and

memorised.

4. Load the rest of objects to be counted and read the display which indicates the

total number of the object on the pan.

EC-BA-defs-0113 25

11 Functions

How to access and change various functions

Access to Functions

(1) Press Mode and release it when "Func" appears

showing that the balance is in function mode.

Auto Zero

(2) The first mode of the balance "1. A.0_" for Auto

Zero appears.

To change the parameter at the last digit, hit T key.

As to contents of parameters, see next page.

(3) By hitting Mode, the function item will advance

successively according to following sequence.

Auto Power Off Zero Setting

←

↓(Interfacing

Response Interface Conditions) Weighing Unit

→→→

"41.oc._" will be passed depending on setting.

Points of key operation

* To advance the function item, hit Mode key.

** To change parameters, hit T key.

26 EC-BA-defs-0113

12 Parameter List of Functions

* To change parameters (conditions), see page 23.

1 . A . 0 1 : Auto zero adjustment is effective. Auto-Zero

0 : No zero adjustment.

2 . A . P . 0 : Automatic power off in use of battery (option) - not effective. Auto-Power

1 : Automatic power off in use of battery (option) - effective. OFF

3 . r E . 1 : Stabilisation time

2 : Quick Wide Vibration

: ↑↑Filter

: ↓↓

5 : Slow Narrow

4 . I F. 0 : No interfacing

1 : Constant serial output (6-digit) effective with output option. Data output

2 : Constant serial output (7-digit) effective with output option.

41 . o . c. 0 : No output

1 : Constant serial output

2 : Constant serial output of stabilised data *** Output

3 : - Nil - condition

4 : Automatic output with a load after stabilisation *** at the port

5 : One output when stabilised (no output with unstable data) ***

6 : One output when stabilised (random output with unstable data) ***

7 : - Nil -

42 . b . L. 1 : 1200 bps

2 : 2400 bps Baud Rate

3 : 4800 bps

43 . P A . 0 : No parity bit

1 : Odd parity check Parity

2 : Even parity check

5 . un . 1 : Weighing unit in "g"

2 : Weighing unit in "kg"

3 : Weighing unit in "ct" **

4 : Weighing unit in "oz" **

5 : Weighing unit in "lb"

** Other weight units than "g", "kg" and "lb" are indicated by mark. It is

recommended to stick a label of the unit at the mark.

*** Setting at these, output of unit weight is impossible.

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