GAB-P Table Scales Operating Instructions Ver 1.2 Sept 2015

GB

KERN GAB-P Version 1.2 09/2015

Operating manual Table scale Contents 1

TECHNICAL DATA ... 4

2

APPLIANCE OVERVIEW ... 6

2.1

Overview of display ... 8

2.2

Keyboard overview ... 9

2.3

Dimensions ... 11

3

BASIC INFORMATION (GENERAL) ... 11

3.1

Proper use ... 11

3.2

Improper Use... 11

3.3

Warranty ... 12

3.4

Monitoring of Test Resources ... 12

4

BASIC SAFETY PRECAUTIONS ... 13

4.1

Pay attention to the instructions in the Operation Manual ... 13

4.2

Personnel training ... 13

5

TRANSPORT AND STORAGE ... 13

5.1

Testing upon acceptance ... 13

5.2

Packaging / return transport ... 13

6

UNPACKING, SETUP AND COMMISSIONING ... 14

6.1

Installation Site, Location of Use ... 14

6.2

Unpacking / installation ... 15

6.3

Scope of delivery ... 16

6.4

Mains connection ... 16

6.5

Rechargeable battery operation ... 16

6.6

Initial Commissioning ... 16

6.7

Adjustment ... 17

6.8

Non-verifiable models: ... 18

6.9

Verifiable models: ... 18

6.10 Verification ... 19 6.10.1 Position of seals and adjusting switch ... 20 6.11

2

Checking the balance verification settings ... 20

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7

OPERATION ... 21

7.1

Switching on/off... 21

7.2

Zeroing... 21

7.3

Taring ... 22

7.4

Overload warning ... 23

7.5

Weighing units switch-over ... 23

7.6

Percent weighing ... 24

7.7

Parts counting ... 25

7.8

Weighing with tolerance range ... 26

7.9

Manual totalizing ... 28

7.10

Automatic adding-up ... 30

7.11 Date and time setup ... 32 7.11.1 Non-verifiable models: ... 32 7.11.2

Verifiable models: ... 34

8

THE MENU... 37

8.1

Navigation in the menu: ... 37

8.2 Menu overview ... 38 8.2.1 Non-verifiable models:... 38 8.2.2

Verifiable models: ... 39

9

PRINTER... 41

9.1

Change paper roll ... 41

10

DATA OUTPUT RS 232C ... 42

10.1

Technical data ... 42

10.2

Pin allocation of the balance output socket (front view) ... 42

10.3

Remote control instructions... 42

11

MAINTENANCE, SERVICING, REMOVAL, ERROR MESSAGES ... 43

11.1

Clean ... 43

11.2

Servicing, maintenance ... 43

11.3

Disposal ... 43

11.4

Error messages... 43

12

DECLARATION OF CONFORMITY ... 44

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1 Technical data KERN

GAB 6K-5P

GAB 10K-4P

GAB 30K-4P

Weighing range (max)

6 kg

12 kg

30 kg

Readability (d)

0.05 g

0.1 g

0.2 g

Reproducibility

0.05 g

0.1 g

0.2 g

Linearity

± 0.15 g

± 0.3 g

± 0.6 g

2s

2s

2s

6 kg (F2)

12 kg (F2)

30 kg (M1)

Stabilization time Recommended adjusting weight (not supplied) Heating time (operating temperature) Net weight (kg) Dimensions of housing (l x L x h) [mm] Weighing plate, stainless steel

120 min 6 kg 371 x 366 x 131 365 x 240 x 11 mm

Weighing Units

kg, t, lb, oz

Permissible ambient condition

-10° C to 40° C

Allowable air humidity Electric Supply Rechargeable battery

0 % - 80 % (non-condensing) Mains adapter 220 V - 240 V AC, 50 Hz balance 12 V, 500 mA 6 V, 10 Ah Operating period without printer – background lighting on 80 h. Operating period without printer – background lighting off 150 h if the printer is used frequently, the operating time will be halved

Loading time approx. 12 hrs. Data interface

4

RS 232C

GAB-P-BA-e-1512

KERN

GAB 6K-3PM

GAB 10K-3PM

GAB 30K-3PM

Weighing range (max)

3 kg / 6 kg

6 kg / 15 kg

15 kg / 30 kg

Readability (d)

1g/2g

2g/5g

5 g / 10 g

Minimum load

20 g

40 g

100 g

Verification value

1g/2g

2g/5g

5 g / 10 g

Verification class

III

III

III

Reproducibility

1 g /2 g

2g/5g

5 g / 10 g

Linearity

±1g/2g

±2g/5g

± 5 g / 10 g

2s

2s

2s

6 kg (M1)

15 kg (F2)

30 kg (M1)

Stabilization time Recommended adjusting weight (not supplied) Heating time (operating temperature) Net weight (kg) Dimensions caisse (l x L x h) [mm] Weighing plate, stainless steel

10 min / 10 min 6 kg 371 x 366 x 131 365 x 240 x 11 mm

Weighing Units

g, kg

Permissible ambient condition

-10° C to 40° C

Allowable air humidity

0 % - 80 % (non-condensing)

Electric Supply

Mains adapter 110 – 230 V AC Balance 12 V DC, 500mA

Rechargeable battery

6 V, 10 Ah Operating period without printer – background lighting on 80 h. Operating period without printer – background lighting off 150 h if the printer is used frequently, the operating time will be halved

Loading time approx. 12 hrs. Data interface

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RS 232C

5

2 Appliance overview

1. 2. 3. 4. 5. 6.

6

Weighing pan Printer Buttons Bubble level RS 232 interface Battery compartment

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7. Transport guard screw 8. Levelling screw 9. Connection of mains adapter 10. ON/OFF switch 11. Seal of verifiable models 12. Seal with an underneath verification switch (verifiable models)

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2.1

Overview of display

Display

Description

Description

1

The battery capacity display

appears when the capacity of the battery is getting low

2

Stability display

Scales are in a steady state

3

weighing units selectable

Non-verifiable models: kg, t, lb, oz Verifiable models: g, kg

4

GROSS Gross weight display

Showing gross weight

NET

Net weight display

Displays the net weight

ZERO

Zeroing display

Should the balance not display exactly zero 0

despite empty scale pan, press the button. The balance will be set to zero after a short standby time.

5

TARE

Taring

Scales have been tared

AUTO

Automatic adding-up

Is displayed if in the menu „Automatic totalizing“ has been selected

Tolerance check

Load above (HI), below (LO) or within (OK) tolerance range

HI OK

Check weighing

LO

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2.2

Keyboard overview

1

2

1. Bubble level Level balance with foot screws until the air bubble of the water balance is in the prescribed circle.

2. Storage battery status display Power supply connected

• •

Icon is glowing for power supply via power pack

If the LED lights green, the rechargeable battery is fully charged. When the battery is being recharged, the LED lights red

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Selection

Function F

In piece counting mode change between reference weight - item number - total weight

UNIT

In weighing mode: Weighing units switch-over

PRINT

•

Data transfer via interface

•

Save value to memory if memory function “automatic“, is disabled

• ESC

In menu: Select main menu items

Call up menu: Press both buttons at the same time

Return to weighing mode Changes between weighing mode and quantity counting mode

C

%

•

Delete displayed value

•

In menu: Return to weighing mode

Call up percent weighing Move to the left by one decimal point

TOL

Enter upper, lower or both limits Move to the right by one decimal point

TARE

•

Tare balance and enter pre-tare value

•

In menu: Select submenus

Increase displayed value •

Reset scales to zero

•

In menu: Save selected setting

Confirm entered value or select function

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2.3

Dimensions

3 Basic Information (General) 3.1 Proper use The balance acquired by you serves to determine weight. 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 pan. As soon as the goods to be weighed are placed on the balance and the weight has been displayed. 3.2 Improper Use Do not use balance for dynamic weighing. In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“. (Example: Slowly draining fluids from a container on the balance.) Do not leave permanent load on the weighing pan. This may damage the measuring system. Impacts and overloading exceeding the stated maximum load (max) of the balance, minus a possibly existing tare load, must be strictly avoided. Balance may be damage by this. Never operate balance in explosive environment. The serial version is not explosion protected. The structure of the balance may not be modified. This may lead to incorrect weighing results, safety-related faults and destruction of the balance. The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing.

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3.3 Warranty Warranty claims shall be voided in case •

Our conditions in the operation manual are ignored

•

The appliance is used outside the described uses

•

The appliance is modified or opened

•

Mechanical damage or damage by media, liquids, natural wear and tear

•

The appliance is improperly set up or incorrectly electrically connected

•

The measuring system is overloaded

3.4 Monitoring of Test Resources In the framework of quality assurance the measuring-related properties of the balance and, if applicable, the testing weight, must be checked regularly. The responsible user must define a suitable interval as well as type and scope of this test. Information is available on KERN’s home page (www.kern-sohn.com with regard to the monitoring of balance test substances and the test weights required for this.(www.kern-sohn.com). In KERN's accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost.

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4 Basic Safety Precautions 4.1

Pay attention to the instructions in the Operation Manual Carefully read this operation manual before setup and commissioning, even if you are already familiar with KERN balances. All language versions contain a non-binding translation. The German original document is binding.

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

5 Transport and storage 5.1 Testing upon acceptance When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage. 5.2

Packaging / return transport  Keep all parts of the original packaging for a possibly required return.  Only use original packaging for returning.  Prior to dispatch disconnect all cables and remove loose/mobile parts.  Reattach transport securing devices. (see chapter 6.2)  Secure all parts such as the glass wind screen, the weighing platform, power unit etc. against shifting and damage.

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6 Unpacking, Setup and Commissioning 6.1 Installation Site, Location of Use The balances are designed in a way that reliable weighing results are achieved in common conditions of use. You will work accurately and fast, if you select the right location for your balance. On the installation site observe the following: • 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 the 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 longer periods of time. Non-permitted condensation (condensation of air humidity on the appliance) may occur if a cold appliance is taken to a considerably warmer environment. In this case, acclimatize the disconnected appliance for ca. 2 hours at room temperature.

•

Avoid static charge of goods to be weighed or weighing container.

If electro-magnetic fields or static charge occur, or if the power supply is unstable major deviations on the display (incorrect weighing results) are possible. In that case, the location must be changed.

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6.2 Unpacking / installation Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation.

Make sure that all transport locking devices are removed

To release the transport lock unscrew the transport screw  1 – non verifiable models or  2 –verifiable models counter-clockwise.

For transportation carefully screw-in transport screw clockwise till to the stopper and then fix it using locknut.

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6.3

Scope of delivery

Serial accessories: •

Balance, see chap. 2

•

Mains adapter

•

Rechargeable battery

•

Operating manual

6.4 Mains connection Power is supplied via the external mains adapter. The stated voltage value must be the same as the local voltage. Only use KERN original mains adapter. Using other makes requires consent by KERN. 6.5 Rechargeable battery operation The rechargeable battery is charged via the delivered power supply. Before the first use, the battery should be charged by connecting it to the mains power supply for at least 12 hours. in the weight display indicates that the The appearance of the battery symbol battery is almost exhausted. To charge the chargeable battery, connect the mains cable. The LED display informs you during loading about the loading status of the rechargeable battery. • •

If the LED lights green, the rechargeable battery is fully charged. When the battery is being recharged, the LED lights red

6.6 Initial Commissioning In order to obtain exact results with the electronic balances, your balance must have reached the operating temperature (see warming up time chap. During this warming up time the balance must be connected to the power supply (mains, accumulator or battery). The accuracy of the balance depends on the local acceleration of gravity. Strictly observe hints in chapter Adjustment.

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6.7 Adjustment As the acceleration value due to gravity is not the same at every location on earth, each balance must be coordinated - in compliance with the underlying physical weighing principle - to the existing acceleration due to gravity at its place of location (only if the balance has not already been adjusted to the location in the factory). This adjustment process must be carried out for the first commissioning, after each change of location as well as in case of fluctuating environment temperature. To receive accurate measuring values it is also recommended to adjust the balance periodically in weighing operation. The adjustment is locked for verified balances. To disable the access lock, requires that the seal is destroyed and the adjusting switch is actuated in step 3 when turning on the scale. For position of adjusting switch, see chap. 6.10.1. Attention: After destruction of the seal the balance must be re-verified by an authorised agency and a new verification wire/seal mark fitted before it can be reused for applications subject to verification. Procedure when adjusting: Observe stable environmental conditions. A warming up time (see chapter 1) is required for stabilization. Ensure that there are no objects on the weighing pan.

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6.8

Non-verifiable models:

 Switch on the balance and during the selftest press the 

and the button at the same time. „UnLoad“ is displayed shortly.  Ensure that there are no objects on the weighing pan.  „LoAd“ is displayed  Place adjustment weight, the stability display

appears

 After the adjustment the balance will carry out a self-test. „PASS“ will be displayed shortly. Remove adjusting weight during selftest, the appliance will return into weighing mode automatically. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure.

6.9



Verifiable models:

 Switch on balance and press the adjustment switch at the same time.  After that, during the balance’s selftest, press and at the same time. „UnLoad“ is displayed.  Acknowledge with the weighing pan.

. Ensure that there are no objects on

 The currently set adjustment weight will be displayed.  To change by using the navigation buttons (see chap. 8) select the desired setting, the active digit is flashing.  Acknowledge with

18

. „LoAd“ is displayed.

GAB-P-BA-e-1512

 Carefully place adjusting weight in the centre of the weighing plate. Wait for stability display , then press „PASS“ will be displayed shortly.

.



 After the adjustment the balance will carry out a self-test. Remove adjusting weight during selftest, the appliance will return into weighing mode automatically. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure.

6.10 Verification General hints: U

According to EU directive 90/384/EEC balances must be officially verified if they are used as follows (legally controlled 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 purpose. d) For manufacturing final packages. In cases of doubt, please contact your local trade in standard. After verification the balance is sealed at the indicated positions. Verification of the balance is invalid without the "seal".

Verification notes An EU type approval exists for balances described in their technical data as verifiable. If a balance is used where obligation to verify exists as described above, it must be verified and re-verified at regular intervals. Re-verification of a balance is carried out according to the respective national regulations. The validity for verification of balances in Germany is e.g. 2 years. The legal regulation of the country where the balance is used must be observed! Balances with obligation to verify must be taken out of operation if: • The weighing result of the balance is outside the error limit. Therefore, in regular intervals load balance with known test weight (ca. 1/3 of the max. load) and compare with displayed value. • The reverification deadline has been exceeded.

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6.10.1

Position of seals and adjusting switch

1. Seal of approval 2. Cover 3. Housing screw 4. Adjustment switch

6.11 Checking the balance verification settings For the adjustment, the balance must be switched over to service mode. In the service mode the parameters of the balance can be modified. The service parameters may not be modified, as this could damage the balance settings. In calibrated scales the service mode is locked individually for each switch. To disable the access lock, destroy the seal and actuate the switch. Attention: After destruction of the seal the balance must be re-verified by an authorised agency and a new verification wire/seal mark fitted before it can be reused for applications subject to verification.

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