Witeg WBA-320, WBA-620, WBA-6200, WBA-3200 Operating Manual

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Standard Analytical Balance

Operating Manual

written for

WBA -320/ -620/ -3200/ -6200

witeg Labortechnik GmbH

www.witeg.de

Contents

1 General........................................................................................................................ 1

2 Safety Instructions ..................................................................................................... 1

2.1 Description of symbols .................................................................................................. 1

2.2 Instructions ..................................................................................................................... 1

2.3 Product introduction....................................................................................................... 3

3 Positioning the device and commissioning............................................................. 3

4 Accessoires ................................................................................................................ 4

4.1 Standard scope of delivery ............................................................................................ 4

4.2 Optional accessories...................................................................................................... 5

5 Product description ................................................................................................... 5

5.1 General survey................................................................................................................ 5

5.2 Controller......................................................................................................................... 6

6 Product Usage............................................................................................................ 7

6.1 Display............................................................................................................................. 7

6.2 Preparation stage............................................................................................................ 7

6.3 Basic Functions .............................................................................................................. 8

6.3.1 Measurements function of Basic weight ..................................................................................... 8

6.3.2 Calibration and Adjustment ..........................................................................................................8

6.3.3 Date set-up .................................................................................................................................... 10

6.3.4 Time set-up ................................................................................................................................... 11

6.3.5 Display Back-Light ON/OFF ........................................................................................................12

6.3.6 Buzzer ON/OFF .............................................................................................................................12

6.4 Application functions ................................................................................................... 13

6.4.1 Coefficient measurement ............................................................................................................13

6.4.2 Density measurement of Solid sample ......................................................................................14

6.4.3 Density measurement of Liquid sample ....................................................................................15

6.4.4 Dynamic measurement ................................................................................................................16

6.4.5 Comparative measurement .........................................................................................................17

6.4.6 Setting and releasing of metering unit....................................................................................... 18

6.5 Unit of Balance.............................................................................................................. 19

7 Maintenance and cleaning....................................................................................... 20

8 Troubleshooting Guide............................................................................................ 20

9 Technical data........................................................................................................... 21

10 Certificate................................................................................................................ 22

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1 General

Thank you for purchasing our WBA Standard Analytical Balance. You did a good choice buying a Wisd product.

Before use, please read this manual and use it properly.

To cover the user’s health and avoid the product’s destruction you have to follow the safety instructions of the second chapter.

Please keep this operating manual in a save place for future reference and hand it out if you consign the device to a third person.

Witeg reserves to modify the capsule or make amendments for the improvement of quality and

efficiency without prior notice.

2 Safety Instructions

2.1 Description of symbols

WARNING

Information for avoiding injuries or fatal accidents.

ATTENTION

Safety instruction to avoid a damage of the product.

ATTENTION

Information about technical parameters.

Environment

Information about the operating environment.

WARNING of explosions

Safety instruction to avoid explosions.

2.2 Instructions

For a safety and faultless using of the device it is indispensable that you read the following instructions purposely and follow them by the use.

 Connect the device only to the suitable power supply. Please have a look to the

identification plate.

 Use the device only in electric circuits with ground fault circuit interrupter.  Check the power supply cord before you stick it into the electrical outlet.  Do not use power bars to extend the power supply cord.  Only use extension cables with sufficient cable cross section.

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 Do not touch the device with wet hands during the usage because this might cause an

electrical shock.

 If unexpected sound, smell or smog is generated by the device, pull out the main plug and

contact the manufacturer or your supplier immediately.

 Disconnect the power supply plug before cleaning or maintenance.  If you use radiation or contaminated samples the responsibility is only up to you.

 It is important that the device stands up on a horizontal, stabile and firm subsurface to avoid

vibrations.

 Make sure that the device cannot slip away.  To avoid heat congestion or fires make sure that there is enough space for air circulations.  Avoid direct solar radiation.  Do not use the device near highly combustible materials.  Do not set the device outdoors.  It is superiorly to set the device in a good illuminated place to avoid accidents engendered

by handling errors.

 To set the device in wet or dusty places could cause overheating, short circuits or fires.

 Do not use this device in area with potentially explosive atmosphere.

 Reparations and amendments should only made by witeg authorized people.

Contraventions exclude the warranty.

 Use this device only if you read the whole safety instructions.  This device should only use by persons who are familiarized with safety instructions made

for laboratories.

 Pay attention that no liquid reaches the controller or inward of the capsule.  You have to keep the device clean if you want to get a longer life of it.  Wear corresponding protective work clothing during the usage.  Pull out the power cable if you didn’t want to use the device for a longer time.

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2.3 Product introduction

This product provides high accuracy and convenience as an electronic balance for laboratory analysis. Because it is quickly and accurately measured and it is equipped with various measuring functions, the width of purpose of use is wide. This product was developed and manufactured by considering the convenience and safety for use, and there are the following features:

1. Because LCD screen with clear and wide Back-light feature is built-in, it is easy to check the current status of this product.

2. Because it is made of solid aluminum, it is lightweight and has excellent durability.

3. This product is equipped with a variety of weight unit modes, so it can support the wide using area.

4. Because the current date and time can be set up, it is convenient to record.

5. Because a glass box is mounted, the weighing platform is protected from the flow of air and the dust.(WBA-320/-620 Model)

6. The Stainless Steel Pan can be installed or removed, so it is easy to keep cleanliness.

7. Because the top and both sides of Weighing Chamber can be opened and closed, it is very convenient to measure the mass while manipulating a sample. (WBA-320/-620 Model)

8. Because the anti-shock function of four steps is mounted, this product is safely protected.

RS232 communication cable for data output and USB cable are supported, so it is supported so that user is convenient to store data. (Selectable Option)

10. Because the wide square pan for the measurement of various samples is mounted, it is convenient to use. (WBA-3200/-6200 Model)

11. Because a weights box is mounted, it is easy to keep the weights.(WBA-620 Model)

12. 20 units of measurement in this product are supported, so users can widely use it.

13. Because the software for density measurement is built-in, the density of samples can be quickly and conveniently measured.

14. The automatic calibration by a weight built-in type model, and the selection of calibration using external weights are possible.

15. Because the program that can measure the coefficient is supported, users can widely use it.

16. Because this product can measure the dynamic weight, if the weighing of the important animal is required, it can be easily implemented.

3 Positioning the device and commissioning

1. Please do not lay the product on the floor or subject it to shock. It can cause damage inside

the product.

2. Please install the product in a hard, flat, and stable place.

3. Please do not install the product in a place where it is exposed to direct sunlight, or in the

dangerous places.

4. To minimize the risk of short circuits, do not install the product (in the) places where it will be

subjected to the inflow of moisture or organic solvents on the regulator part or inside of the body.

5. Please, do not put the scale in the place where there is severe moisture for a long time. If you

put a cold scale in the warm environment, moisture can be condensed on the surface of the balance. In this case, the balance should be used after adapting in the room temperature.

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This product was manufactured for normal operation at a rated voltage, so please check the

voltage status before installing the product.

7. When installing and using the product, please certainly use the power cord provided with the products.

8. After installing the balance in the appropriate place, the water drop of the level located in the center of the back side sets to come in the center by turning the horizontal regulating screw on the bottom of the scale, and then uses it.

9. If you wish to use the weighing plate, please use the disposable paper (parchment paper) or the plastic plate of the light material commercially sold for an experiment. If the capacity of the weighing plate is large, it is impossible to use the appropriate capacity of the balance.

10. You must be careful so that the equipment is not exposed to high humidity for long term.

The accumulation of high humidity is able to be generated when cold equipment was suddenly exposed in the warm environment can be not determined. In this case, the equipment is disconnected the power at room temperature and it should be adapted more than 2 hours.

4 Accessoires

4.1 Standard scope of delivery

Component Photo

Component Name

No. of Configuration

WBA

Standard

Analytical

1 unit

Balance

Calibration Weight

(WBA-6200 - none)

1ea

Weighing Plate

1ea

AC Power Supply

Operating

manual

1ea

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4.2 Optional accessories

Image

Ordering Number

DH.WBA0083

Information

Thermal Printer, Paper Roll,

"WBA-083", Included Cable

DH.WBA0084

DH.WBA0770

DH.WBA0771

DH.WBA0003

Thermal Paper Package,

5X Paper Roll, for "WBA-083"

Thermal Printer, Label Paper Roll,

"WBA-770", Included Cable Module,

1XLabel Paper Roll

Thermal Label Paper Package,

5XLabel Paper Roll, for "WBA-770"

Glass Draft Shield, 3 Slide Doors

(Left, Right, Top),

175 X 195 X h230 mm

5 Product description

5.1 General survey

WBA-320/ -3200/ -6200

WBA-620

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①

②

③

Name Description

Power connections Connection piece of Power cord

RS232 connection Port for connection with print by cable

USB 2.0 connection Port for connection with print by cable

④

⑤

⑥

⑦

⑧

⑨ ⑩

Adjuster for equilibrium Adjust equilibrium

5.2 Controller

Upper glass Door. Upper glass Door/Protection against wind

Left glass Door Left glass Door/Protection against wind

Right glass Door Right glass Door/Protection against wind

Weighing Plate For sample measurement.

Controller Set and Check operation

Bubble Level Check the Equilibrium

Name Description

Press to initialize the weight of a container.

TARE

Press to return the previous menu without saving. Press to exit from the weighting function.

Press when you want to change the unit.

UNIT

Press to move the left. Press to select all of the digits. Press to set the parameters.

Press when you want to change the system menu.

Press to exit the System Settings menu. Press this button to return to the previous menu. (WBA-620 Model is the MAIN Button.)

Press to manually print or to send a communication. Press to move the parameters.

CAL

Press when you want to adjust the weight. Press to select the value of the variable.

POWER

Power On/Off

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6 Product Usage

6.1 Display

2 3

4 5 6

Name and Description NO

1 Stable status display

2 Tare signal

3 "0"point value display

16 17

Name and Description

10 Omnipresent time display

11 Dynamic measurement signal

12 Density measurement signal

4 Back up signal

5 Weight indication signal

6 Total hops signal

7 Battery status

8 Quantity display

9 Menu level, and Current date

6.2 Preparation stage

13 Sensitivity measurement signal

14 Protection against Dust measurement signal

15 Current temperature display

16 Showing Menu items and Weight results

17 Unit display

- For accurate results the stabilization time of about 30 minutes before the operation of the product should be given.

- This product should be adjusted so that the water drop of the level comes in the center by adjusting the horizontal regulating screws that play a role of two brackets on the bottom of its rear panel as shown in Figure.

- The water drop located in the center means the equilibrium condition. Please check this condition before use.

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6.3 Basic Functions

6.3.1 Measurements function of Basic weight

- By default, progress in the order in this description when measuring the weight.

Step Key (or instruction) Display

1. Press the power button and check “0” point after that the screen of Display is stabilized.

2. Place the sample to be measure the weight on the weighing pan. (in this Example : 100g)

3. Check whether both the weight of a weight and the result measurement value of the Display are the same or not.

POWER 0.00g

100.00g

4. Press the TARE button, and initialize the previous weight.

5. When put a container on the balance and measure the weight of a Sample, except for the weight of the container, first, put the container on and press the TARE button and adjust “0” point.

6. After checking “0” point, put the sample to be measure on the weighing pan.

TARE 0.00g

0.00g

TARE

100.00g

(in this Example : 100g)

6.3.2 Calibration and Adjustment

- The calibration is randomly conducted by the user after that the user checks the actual weight and the measurements by using the Sample with the specified value. The error of the measurements during using can be minimized by minimizing the difference value at an acceptable level.

- Conduct the calibration after checking whether the scale accurately maintains the horizontal condition or not, by using the Calibration Weight among the components of the product before the regular operating of the scale.

Step Key(or instruction) Display

1. After pressing the power button, adjust so that the balance has the “0” point

Power or TARE 0.00g

which is the stabilized value.

2. To press and hold the CAL button, “CAL” letters with a beep appears on the screen, and the value to be calibrated is blinking.

3. Put the Calibration Weight of the components of the product on the balance.

CAL

- - CAL - -

- - - - - - -

2000.00g

(WBA-3200 model)

2000.00g

(WBA-3200 model)

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Step Key(or instruction) Display

4. The balance automatically progresses the calibration to the actual value

TARE - - - - - - -

measured on it.

5. After the calibration is completed, the measured value is displayed.

2000.00g

(WBA-3200 model)

6. To put down the balance weight from the balance, the calibration is completed.

0.00g

- In order to precisely calibrate the balance, the phased weight calibration can be progressed. This is user’s option and the external weight of phased size is required. (Weight calibration)

Step Key(or instruction) Display

1. The balance is proceeded at “0” point state which is the stabilized value.

2. To press and hold the CAL button, “CAL” letters with a beep appears on the screen, and the value to be calibrated is blinking.

Power or TARE 0.00g

- - CAL - -

CAL

- - - - - - -

2000.00g

(WBA-3200 model)

3. If the value to be calibrated is appeared on the LCD screen, enter into the phased calibration menu by pressing and holding the MENU button.

(MAIN)

- - CAL - -

3000.00g

(WBA-620 Model is the MAIN Button.)

4. Put the Calibration Weight of 3,000g on the balance.

3000.00g

(WBA-3200 model)

5. The balance automatically progresses the calibration to the actual value measured on it.

6. If put down the weight, 2000.00g appears on the LCD screen.

7. Put the Calibration Weight of 2,000g on the balance.

8. 1000.00g will be blinking on the LCD screen.

9. Put the Calibration Weight of 1,000g on the balance.

10. To put down the balance weight from the balance, the calibration is completed.

3000.00g

(WBA-3200 model)

2000.00g

(WBA-3200 model)

2000.00g

(WBA-3200 model)

1000.00g

(WBA-3200 model)

1000.00g

(WBA-3200 model)

0.00g

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6.3.3 Date set-up

- Because system date is set up, the current date can be always checked on the standby screen.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN

(MAIN)

Button.)

2. Briefly press the MENU (MAIN) button again. Check the change of the display screen.

(MAIN)

3. Briefly press the CAL button again. CAL

4. Briefly press the MENU (MAIN) button twice.

5. To briefly press the CAL button, “Year” can be set.

6. It is possible to move the digits by UNIT button, and the number can be converted by PRINT button.

7. To complete the setting of “Year”, set the corresponding “Month” by pressing the MENU (MAIN) button.

8. Like the above, the number of “Month” can be converted by UNIT button and PRINT button.

9. To complete the setting of “Month”, set the corresponding “Day” by pressing the MENU( MAIN) button.

MENU X 2

(MAIN X 2)

CAL

UNIT : Cursor movement

PRINT : Number

conversion

(MAIN)

UNIT : Cursor movement

PRINT : Number

conversion

(MAIN)

10. Like the above, the number of “Day” can be converted by UNIT button and PRINT button.

UNIT : Cursor movement

PRINT : Number

conversion

11. Once you have set the current date, press the CAL button to return to the

CAL

previous menu.

12. To press the TARE button twice, return to the initial menu.

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TARE X 2

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6.3.4 Time set-up

- Because the current time is set up in the system, the current time can be always checked in the standby screen.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed (WBA-620 Model is the MAIN

(MAIN)

Button.)

2. Briefly press the MENU (MAIN) button. Check the change of the display screen.

(MAIN)

3. Briefly press the CAL button. CAL

4. Briefly press the MENU (MAIN) button Three times.

5. Briefly pressing the CAL button, “Time” can be set.

6. It is possible to move the digits by UNIT button, and the number can be converted by PRINT button.

7. To complete the setting of “Time”, set the corresponding “Minute” by pressing the MENU (MAIN) button.

8. Like the above, the number of “Minute” can be converted by UNIT button and PRINT button.

9. To complete the setting of “Minute”, set the corresponding “Second” by pressing the MENU (MAIN) button again.

UNIT : Cursor movement

MENU X 3

(MAIN X 3)

CAL

PRINT : Number

conversion

(MAIN)

PRINT : Number

conversion

(MAIN)

10. Like the above, the number of “Second” can be converted by UNIT button and PRINT button.

11. To return to the previous menu by pressing CAL button on the screen to be

UNIT : Cursor movement

PRINT : Number

conversion

CAL

set, the setting is completed.

12. To press the TARE button twice, return to the initial menu.

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6.3.5 Display Back-Light ON/OFF

Set up the Back-Light of Display to ON/OFF.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN

(MAIN)

Button.)

2. Briefly press the MENU (MAIN) button. Check the change of the display screen.

(MAIN)

3. Briefly press the CAL button.

CAL

4. Briefly press five times the MENU (MAIN) button.

5. It is possible to select either of ON/OFF/AUT by UNIT button or PRINT button.

6. To return to the previous menu by

pressing the CAL button in the screen to be

set, the setting is completed.

7. To press once the TARE button, return to

the standby screen.

6.3.6 Buzzer ON/OFF

Set up the Buzzer to ON/OFF.

Step Key(or instruction) Display

MENU X 5

(MAIN X 5)

UNIT or PRINT

CAL

TARE

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN Button.)

2. Briefly press the MENU (MAIN) button

(MAIN)

again. Check the change of the display screen.

3. Briefly press the CAL button again.

(MAIN)

CAL

4. Briefly press six times the MENU(MAIN) button.

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MENU X 6

(MAIN X 6)

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Step Key(or instruction) Display

5. It is possible to select either of ON/OFF by the UNIT button or the PRINT button.

UNIT or PRINT

6. To return to the previous menu by pressing CAL button in the screen to be

CAL

set, the setting is completed.

7. To press once TARE button, return to the standby screen.

TARE

6.4 Application functions

6.4.1 Coefficient measurement

- Determine the quantity of parts with the same mass by measuring the weight of the part.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN Button.)

2. Change to the count mode by briefly pressing CAL button.

3. To briefly press again CAL button, the quantity is blinked.

(MAIN)

CAL

CAL 0000020 pcs

4. The quantity can be changed by the PRINT button. The quantity is repeated as 10, 20,

PRINT 0000010 pcs

50, 100, 150, 200, 250, 500 and 1000 cycle.

5. Put the selected quantity on the balance. (in this Example : 10pcs)

6. To press CAL button after putting the sample as much as the set quantity on, the setting is completed.

7. The sample quantities of the same mass can be understood.

0000010 pcs

- - - - - - -

CAL

10 pcs

0 pcs

8. To change to the initial menu, press and hold the TARE button.

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6.4.2 Density measurement of Solid sample

The density of solid material can be determined by using buoyancy.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN

(MAIN)

Button.)

2. Briefly press the CAL button. Check the change of the display screen.

CAL

3. Enter into the density mode by briefly pressing the MENU(MAIN) button.

4. Enter into the density measurement mode of solid by briefly pressing the CAL button.

5. Start the density measurement program of solid by briefly pressing the CAL button.

6. Enter into the weight measurement mode in the air by briefly pressing the CAL button.

7. Put the sample to be measured on the balance, and measure the weight by briefly pressing the CAL button.

8. To put down the sample after saving the measurement value by briefly pressing the CAL button, enter into the weight measurement mode in liquid.

(MAIN)

CAL

9. In order to measure the weight in the water, the mass of the sample in the water can be measured by placing the sample as shown in Figure.

10. To briefly press the CAL button, the measured value is saved and the density measurement value is automatically displayed.

11. To change to the initial menu, press and hold the TARE button.

CAL

TARE

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6.4.3 Density measurement of Liquid sample

The density of the liquid sample can be measured by entering the volume of a sample on the balance.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN Button.)

2. Briefly press the CAL button. Check the change of the display screen.

(MAIN)

CAL

3. Enter into the density mode by briefly pressing the MENU(MAIN) button.

4. Enter into the density measurement mode of solid by briefly pressing the CAL button.

5. Enter into the density mode of liquid by briefly pressing the MENU(MAIN) button.

6. Briefly press CAL button and enter the constant vale of the standard density of the liquid that you want to measure.

7. It is possible to move the digits by UNIT button, and the number can be converted by PRINT button.

8. Briefly press the CAL button and enter into the weight measurement mode in the air.

9. Put the sample to be measured on the balance, and measure the weight by briefly pressing the CAL button.

(MAIN)

CAL

(MAIN)

CAL

UNIT : Cursor

movement

PRINT : Number

conversion

CAL

10. Put down the sample from the balance and measure the mass in the water by placing as shown in Figure.

11. To briefly press the CAL button, the measured value is saved and the density measurement value is automatically

CAL

displayed.

12. To change to the initial menu, press and hold the TARE button.

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6.4.4 Dynamic measurement

The value of moving weight is measured by the average of measured weight values within a fixed time.

Step

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the MAIN

Key(or

instruction)

(MAIN)

Display

Button.)

2. Briefly press the CAL button again. Check the change of the display screen.

CAL

3. Enter into the dynamic weight measurement mode by briefly pressing twice the MENU(MAIN) button.

4. Briefly press the CAL button again and set up the time needed for the measurement of the dynamic weight.

5. It is possible to move the digits by UNIT button, and the number can be converted by PRINT button. When the cursor selects the entire, 1,2,5,10,15,20,30,40,50 and 60 are changed to Cycle by PRINT button.

6. To press the CAL button on the time screen you want to set, the setting is completed.

7. Briefly press the CAL button again, and put the dynamic weight to be measured on the balance as the time as the set time.

MENU X 2

(MAIN X 2)

CAL

UNIT : Cursor

movement

PRINT : Number

conversion

CAL

8. If the weight is measured for the same time as set time and the measurement is completed, the fixed average of the measured value automatically appears.

9. If the measured value is initialized by pressing the TARE button and press the CAL button, the dynamic weight can be measured again.

10. To change to the initial menu, press and hold the TARE button.

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6.4.5 Comparative measurement

The current weight value is indicated as a weight % based on the measured weight.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed.(WBA-620 Model is the MAIN

(MAIN)

Button.)

2. Briefly press the CAL button again. Check the change of the display screen.

3. Enter into the dynamic weight measurement mode by briefly pressing three times the MENU(MAIN) button.

4. Briefly press the CAL button again, and select the comparative measurement mode.

5. To briefly press the CAL button again, enter into the comparative measurement mode. If the display flashes, put the sample for comparative measurement on the balance.

7. Put down the sample, and put other sample to be compared on the balance. The weight of other Sample is displayed as a percentage based on the weight value of the sample measured firstly.

MENU X 3

(MAIN X 3)

CAL

8. To change to the initial menu, press and hold the TARE button.

TARE

- Manual comparative measurement method: Indicate the ratio measurement value of other sample as % by manually entering the weight of sample that may be compared.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620

(MAIN)

Model is the MAIN Button.)

2. Briefly press the CAL button. Check the change of the display screen.

3. Enter into the dynamic weight measurement mode by briefly pressing three times the MENU(MAIN)

CAL

MENU X 3

(MAIN X 3)

button.

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Step Key(or instruction) Display

4. Briefly press the CAL button again, and select the comparative

CAL

measurement mode.

5. To briefly press the MENU(MAIN) button, enter into manually entered comparative measurement mode

6. To briefly press the CAL button, the screen that manually enters the

(MAIN)

CAL

measurement value.

7. It is possible to move the digits by UNIT button, and the number can be converted by the PRINT button.

8. If entering the weight value and briefly pressing the CAL button, the weight of other sample that is put on the balance is displayed as a

UNIT : Cursor

Movement

PRINT : Number

conversion

CAL

percentage based on the entered value.

9. To change to the initial menu, press and hold the TARE button.

TARE

6.4.6 Setting and releasing of metering unit

The use of all metering unit is not allowed due to the establishment of a legal metering unit. Accordingly, when using this product, the setting and releasing system is supported so that can use by releasing the unit that is regulating in each country.

Step Key(or instruction) Display

1. To press and hold the MENU button, the beep is generated, and LCD screen is changed. (WBA-620 Model is the

(MAIN)

MAIN Button.)

2. Briefly press the Menu button again. Check the change of the display screen.

3. Briefly press the CAL button. Check the change of the display screen.

(MAIN)

CAL

4. Briefly press the Menu(MAIN) button. Enter into the unit change mode.

(MAIN)

5. To briefly the CAL button, unit and the unit ON/OFF selection will appear.

CAL

6. The change of ON/OFF is possible by the PRINT button.

witeg Labortechnik GmbH, WBA Standard Analytical Balance

www.witeg.de

Step Key(or instruction) Display

7. If changing ON/OFF by the PRINT button and briefly pressing the MENU(MAIN) button, the value indicated on DISPLAY screen is saved,

(MAIN) and the screen is changed to ON/OFF setting of the next unit.

8. To briefly press the MENU(MAIN) button, the unit of ct, oz, ozt, dwt, GN, lb, N, dr, tlT, tls, tlH, T, T/A/R, /A/R, ms, bat, mom, /lb and kg is repeated in

(MAIN)

cycle.

9. To press the TARE button, return to previous mode, and to briefly press it

TARE

three times, change to the initial menu.

6.5 Unit of Balance

The change of the unit is possible by UNIT button, it is displayed as the condition applied to the standby screen or the measurement results.

Unit signal Unit Unit Exchange rates g ct oz ozt dwt GN lb N dr tlT tls tlH T T/A/R /A/R ms bat mom /lb kg

gram 1 carat 5 ounce 0.03527396200 troy ounce 0.0.315074700 pennyweight 0.64301493100 grain 15.43235835000 pound 0.00220462260 newton 0.00980654189 dram 0.56438222222 taiwan Tel 0.02666666000 Singapore Tel 0.02645544638 Hong Kong Tel 0.02671725000 tola 0.08573532418 Tola/Ana/ rati T.A.R Tola/Mna/ rati T.M.R Mesghal 0.21700000000 bat 0.06578947437 momme 0.26670000000 Parts per pound 1.12876677120 Kilogram 0.00100000000

witeg Labortechnik GmbH, WBA Standard Analytical Balance

www.witeg.de

7 Maintenance and cleaning

 Please read the whole safety instructions before you start to maintain or clean the

device.

 Pull the power plug out of the electrical outlet.  Only use care cleaning agents and soft cleaning rags.  Organic lotions, strong chemicals and rough cleaning rags can damage the device.  If you not want to use the device for a long time, pull of the power plug and keep it dry in

the package.

 The samples of large particle and powders are carefully brushed away or removed by a

small vacuum cleaner. In this case, the power of the product must be turned off.

 Do not use water, Benzene, Thinner or any alcohol for cleaning the product. It may

cause discoloration, damage, an electric shock or fire.

 Only use original spare parts.

8 Troubleshooting Guide

Situation Confirmations and Solutions

 Check the supplied voltage is present.

The display does not

appear

 Check the power connection and the power cord for proper

connection and integrity.

 Make sure that the power of the balance is off.  Make sure that there is no movement of wind and air.

 Check the vibration of the installation table or floor.

The measured value is still

vary

 Make sure that foreign material is stained on the weighing pan.  Check the peripherals for whether it is the problem due to

electromagnetic field / electrostatic or not.

The measured value is not

correct

 Make sure that it is set to the zero(0) point.  Make sure that the calibration values are correct.

If any other error is occurred, turn the power of the product off and then turn it on again.

If other problems arise, or one of the above not solves problems, please contact your official agent or the manufacturer. Reparations and amendments should only made by witeg authorized people. Contraventions exclude the warranty.

witeg Labortechnik GmbH, WBA Standard Analytical Balance

www.witeg.de

9 Technical data

Specification / Model WBA-320 WBA-620

Weighing Range

Weighing Plate

Read-Out [d]

Reproducibility

Linearity

Permissible Temperature

Weight Mode

Counting Mode

Calibration

Display

Dimension (wxdxh) & Net

Weight

Power supply

0,001 ~ 3200 g 0,001 ~ 6200 g

Ø 90 mm Ø 128 mm

0,001 g

5,0 ~ 35°C

% Mode and Available g-/ ct-/ GN-/ dwt-/ etc…

Available Counting & Weighing Mode

External Calibration

Included 200 g Calibration

Weight

Digital Super Size LCD with Back - Light Function

223 x 345 x 331 mm / 3,6 kg 223 x 345 x 331 mm / 5,7 kg

DC 12 V, with AC 220V Adapter, 60Hz

Included 500 g Calibration

Weight

Specification / Model WBA-3200 WBA-6200

Weighing Range

Weighing Plate

Read-Out [d]

Reproducibility

Linearity

Permissible Temperature

Weight Mode

Counting Mode

Calibration

Display

Dimension (wxdxh) & Net

Weight

0,01 ~ 3200 g 0,01 ~ 6200 g

168x168 mm

0,01 g

5,0 ~ 35°C

% Mode and Available g-/ ct-/ GN-/ dwt-/ etc…

Available Counting & Weighing Mode

External Calibration

Included 2 kg Calibration

Weight

Digital Super Size LCD with Back - Light Function

195 x 295 x 90 mm / 2,6 kg

none

Power supply

witeg Labortechnik GmbH, WBA Standard Analytical Balance

DC 12 V, with AC 220V Adapter, 60Hz

www.witeg.de

10 Certificate

This certificate excludes damages by natural disasters or incorrect usages by

witeg Labortechnik GmbH

The quality and all features were checked by the

manufacturer before the shipment.

Please look on your account and complete following table:

Article Standard Analytical Balance

Typ

Serialno.

Date

Am Bildacker 16 D-97877 Wertheim TEL: +49-9342-9301-0 FAX: +49-9342-9301-77 Email: info@witeg.de

www.witeg.de

Certificate

for

LABORATORY INSTRUMENTS

We grant from date of purchase

two years guaranty.

the costumer.

witeg Labortechnik GmbH, WBA Standard Analytical Balance

Witeg WBA-320, WBA-620, WBA-6200, WBA-3200 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual