RADWAG WTC/L series Manual de usuario

USER MANUAL

Counting scales – WTC/L series

MANUFACTURER OF ELECTRONIC WEIGHING INSTRUMENTS

RADWAG 26 – 600 Bracka 28 Street, POLAND

Radom, phone +4848 3848 800, phone/fax +4848 385 00 10,

Sales Department +4848 366 80 06

www.radwag.com

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TABLE OF CONTENT

1. APPLICATION – MAIN FUNCTIONS.........................................................................3

2. KEYBOARD...............................................................................................................3

2.1. Keyboard and display window............................................................................3

2.2. Additional markers..............................................................................................4

2.3. Function buttons and functions...........................................................................4

3. OPERATION..............................................................................................................5

3.1. Tarring................................................................................................................5

3.2. Zeroing...............................................................................................................5

4. COUNTING PIECES WITH SAME UNIT MASS........................................................6

4.1. Unit mass is known ............................................................................................6

4.2. By determination of single unit mass..................................................................6

5. SUMMING OF WEIGHING WHILE COUNTING PIECES..........................................7

6. PROGRAM VALUE WHILE COUNTING PIECES .....................................................9

7. READABILITY OF THE SCALE...............................................................................10

8. BACKLIGHT.............................................................................................................10

9. BATTERY CHARGING............................................................................................11

10. TECHNICAL PARAMETERS.................................................................................11

11. COMMUNICATES ON SCALE DISPLAY ..............................................................11

1. APPLICATION – MAIN FUNCTIONS

Scales series WTC /L are designed for counting pieces with same unit mass. Counting

process can be realized as:

Specification of sample mass (one piece)

Calculation of sample mass from some determined amount of samples on the

weighing pan

TARE functions allows for determination of net mass of measured loads – tare range

equal to max capacity of the instrument – Max.

Functional possibilities

−Setting alarm function for counting (threshold)

−Change of scale readability

−Totalizing in counting pieces mode

−Counting pieces

2. KEYBOARD

2.1. Keyboard and display window

Fig 1 – buttons and displays

Scales are equipped with three displays: mass, piece mass, quantity of pieces, and

functional keyboard with numeric and function keys.

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2.2. Additional markers

Character Description

Zero indication of scale

kg Stable weighing result

TARE button applied – net indication

Display indicates total quantity of pieces (sum) or function of

summing details is active

Scale powered from mains

Power supply from battery is low (please charge the battery)

2.3. Function buttons and functions

1. Confirms quantity of pieces as reference mass

2. Pressing this button, will cause the display to show in field

WEIGHT, message “total” – display of total sum of

counted pieces

3. Deleting sum of counted pieces

4. Confirms mass of single unit mass

5. Possibility of setting a threshold for counting pieces mode

(after crossing this threshold, scale generates beep

signal)

6. Deleting the value

7. TARE button (for determination of net mass)

ZERO button (setting zero point of the scale), switching

on/off scale’s backlight

9. Summing of following weighing for counting mode or

change of readability of the scale

10. Decimal point – for insertion of single unit mass value.

11. Scale adjusting

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3. OPERATION

3.1. Tarring

Place the package of the good(s) on the weighing pan. After stabilization of weighing

result, please press button TARE. Display will show ZERO indication. Lower part of the

display WEIGHT, the marker of tare application will be visible.

Fig 2 – tarring of scale indication

After taking the load off the weighing pan, the display will show

mass indication with negative (minus) sign in front of mass.

Press button TARE, so that indication goes back to zero. Tare

function will be canceled automatically.

Tarring is available in all weighing range of the scale.

3.2. Zeroing

It is available in range up to +/- 2% of maximal capacity of the scale.

Procedure:

−If the scale indication is lower than 2% Max

−Press button ZERO to zero indication

−Markers of zero indication and stable result are visible

Fig.. 3 – zeroing of scale indication

−After taking the load off the weighing pan, mass indication with negative

(minus) sign is visible on the display

−Press button ZERO, indication will go back to zero.

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4. COUNTING PIECES WITH SAME UNIT MASS

4.1. Single piece mass is known

In case unit mass of the counted objects is known, counting mode can be realized in

following way:

−Place on the weighing pan a container in which the pieces will be counted, and

press button TARE

−Using numeric keyboard, please insert unit mass. Use decimal point.

−Place counted pieces on the weighing pan of the scale

−Press button

−Display described as QUANTITY will show quantity of pieces

−add following pieces, their quantity will increase automatically.

Fig 4 – counting pieces

−take the weighed elements off the pan. In order to perform

another weighing / counting, insert another unit mass

and confirm it.

−Going back to weighing mode is possible after pressing button

for CANCELING

4.2. By determination of single unit mass

If unit mass of counted objects is not known, please act as described below:

−Place a container for counting pieces on the weighing pan, and press button

TARE

−Using numeric keyboard of the indicator, insert quantity of pieces (reference

mass), which will be used to calculate single piece mass

CAUTION:

reference mass has to be natural number.

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−Place counted pieces on the weight pan of the scale

−Press button

−Display described as UNIT WEIGHT will show unit mass of a sample

−Display described as QUANTITY will show quantity of details, used for calculation

of unit mass

−Add another details, their quantity will increase automatically.

Fig. 5 – counting pieces 2

−take the weighed elements off the pan. In order to perform

another weighing / counting, insert another unit mass

and proceed as described above.

−Going back to weighing mode is possible

after pressing button for CANCELING

5. SUMMING OF WEIGHING WHILE COUNTING PIECES

While counting pieces, it is possible to use summing function. Please follow below

procedure:

1. Start counting pieces as described in points 4.1. or 4.2.

2. when scale shows quantity of pieces, press button PLUS

3. for a moment, quantity of pieces visible in display window QUANTITY with be

invisible, it is a signal that value has been accepted. At the same time, display

described as QUANTITY will show marker of summing: (M+)

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Fig. 6 – function for summing details

4. take the counted objects off the weighing pan (leave the container), scale will

go back to zero indication

5. put into the container another details, and press button PLUS

6. if the package needs to be changed, put it on the weighing pan, and press

button TARE. If the same package is still in use, and it is taken off the pan

together with the counted details, please tare the empty package again, after

placing it on the weighing pan of the scale.

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7. In order to see quantity of summed details please press button

8. The display with show headline of the operation, quantity of

summed weighing (in field UNIT WEIGHT) and total quantity of details (in field

QUANTITY).

Fig 7 – view of sum from a few weighings

9. Continuous summing of weighing is possible after

pressing button

10. Proceed according to points 5 – 7

CANCELING SUM OF COUNTED DETAILS

the moment, the sum of counted details is visible ( please see

drawing no. 8), and press button:

Scale will go back to weighing mode, sum marker will be no longer visible ( marker

over M+will disappear).

Fig. 8 – cancelling sum of counted details

6. PROGRAM VALUE WHILE COUNTING PIECES

While counting pieces mode, control of quantity takes place in visual way – user

should observe display status. For fast processes of quantity building, it is often

required to have some limited quantity which can not be exceeded in one package.

Software of the sale allows for insertion of such limited quantity of pieces, which

exceeding causes sounding of beep signal.

Procedure:

−Using numeric keyboard of the scale, insert value of the threshold for control

of counted details:

Fig. 9 – numeric functional keyboard of the scale

−Press button

−Inserted value will be stored and immediately switched off, display will go

back to previous state

−If while counting pieces, quantity of pieces is exceeded, scale will start to

generate ,,beep” sound

−Signal will be switched off, immediately after having appropriate quantity of

pieces (below the threshold limit).

CAUTION:

Value of the threshold can be set either in weighing mode or in counting details mode.

−in order to switch off control of weighed details, insert 0 (zero –

numeric keyboard) and press button

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7. ACCURACY OF THE SCALE

−after switching the scale by pressing button ON/OFF, scale

performs auto-test, visible on the display of the instrument. While

this process, press button

−After cycle completion, scale status will look as below:

Fig 10 – choice of readability of the scale

−Press button PLUS multiple times, choose readability of the scale

−Confirm set value by pressing button TARE

−Scale will go back to weighing mode

8. BACKLIGHT

Switching on backlight :

−Press and hold button [ZERO] for 3 seconds

−Below values are accessible

obl OFF (backlight off)

obl ON (backlight on)

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