RADWAG WTC series Manuale utente

User

Manual

Table scales – WTC series

MANUFACTURER OF ELECTRONIC WEIGHING INSTRUMENTS

RADWAG 26 – 600 Bracka 28 street, POLAND

Radom, phone +48483848 800, phone/fax +4848 385 00 10,

Sales department +4848 366 80 06

www.radwag.com

MAY 2007

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Content

1. MAIN FUNCTIONS....................................................................................3

2. STRUCTURE.............................................................................................4

2.1. Montage drawings ...............................................................................................4

2.2. Display window overlay .......................................................................................4

2.3. Indicators and pictograms ...................................................................................5

3. KEYS.........................................................................................................5

4. PREPARATION TO WORK......................................................................6

4.1. Switching on........................................................................................................6

4.2. Zeroing ................................................................................................................6

4.3. Tarring.................................................................................................................7

4.4. Switching between weighing units .......................................................................7

4.5. Warning level.......................................................................................................7

4.6. Backlight..............................................................................................................8

4.7. Battery save mode ..............................................................................................8

4.8. Filter ....................................................................................................................8

4.9. Output RS232C...................................................................................................8

4.10. Inserting digits ...................................................................................................9

5. BATTERY..................................................................................................9

6. USER RECOMMENDATIONS................................................................10

7. TECHNICAL PARAMETERS..................................................................10

1. MAIN FUNCTIONS

•Zeroing after switch on

•Tare in whole measuring range

•Autozero

•Filter setting

•Change of measuring unit

•Battery save mode (LED)

•Low battery indication.

•Backlight operation

•Auto-switch off

•Simple calibration

•Interface RS232C.

Drawing 1. Structure F908

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2. STRUCTURE

2.1. Montage drawings

1 – Weighing pan

2 – Operator display

3 – Cover layer

4 – Level

5 – Panel

6 – Load cell casing

7 – Printed PCB

8 – Base

9 – Battery

10 – Battery casing

11 – On/Off switch

12 – Power adapter socket

13 – Bearing support

14 – Pillar base

15 – Pillar

16 – Additional display

DDrawing 2. Structure F908HD

2.2. Display window overlay

Drawing 3 Display window for F908

Drawing. 4 Display window for F908HD

- 4 -

2.3. Indicators and pictograms

Indicator Description

→0 ←Mass within ±0.25e

AC Power supply from A/C current

Low battery

lb Measuring unit – pounds

kg Measuring unit – kilograms

Auto Off Auto-switch off started

BL Backlight switched on

~ Stable measurement

G Gross mass

N Net mass

Pictogram Description

→T ←Tare applied

→0 ←Mass within ±0.25e

AC Power supply from A/C current

~ Stable measurement

Power supply for batteries

lb Measuring unit – pounds

kg Measuring unit – kilograms

CHARGE Battery charging

3. KEYS

Drawing 5. Keys panel for scales F908

A. Button ON

- Switches on the power supply

- Switches between weighing units

- Choice of digit position in calibration mode

- 5 -

B. Button OFF

- Switches off power supply

- Changes options in setting

- Change of digit value on each place

C. Button ZERO

- Zeroing

- Used while calibration process

- Switching off backlight function

D. Button TARE

- Tarring

- Used while calibration process

4. PREPARATION TO WORK

4.1. Switching on

1. Set bearing support, in order to level the scale.

2. In order to supply power by A/C current, plug the scale to mains. In case

D/C power supply is required, or charging the battery, switch the scale to “I”

position.

3. Press button ON, the display will show software version, backlight will be

switched on, following this, maximal capacity of the scale will be displayed

for one second. Next, the scale will move to normal weighing mode, with

indication of 0.00 on the display.

4. if indication „ ” or „ ” is visible on the display, please charge the

battery.

4.2. Zeroing

Accessible, when pressing ZERO button takes place while the scale is in zone of

±2% of its maximal capacity.

Caution:

If marker „N” or „T” is displayed, zeroing is not accessible..

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- 7 -

4.3. Tarring

Pressing button TARE, will cause appearance of „0” on the display. Additionally,

marker „N” or pictogram „T” will be displayed. Another pressing of TARE button, will

cancel tare value, and above mentioned indications and pictograms will no longer be

lit.

Function Indication Description

Place load on the weighing

pan 0.10 Tare value equals 0.1 kg

Press „TARE” 0.00 Scale is tarred. Marker „N” is visible, or

pictogram „T” is displayed.

Take load off the weighing

pan -0.10 Displays tare value with negative

(minus) sign

Press „TARE” again 0.00 Result is zeroed. Tare markers

disappear.

4.4. Switching between weighing units

When function is not entered, press button „ON” in order to change measuring unit

from „kg” onto „lb”.

4.5. Warning level

1. Setting warning level.

If parameter F6 equals 1, than function of warning level can be set between 20e and

maximal weighing capacity. If while weighing, measured mass exceeds set threshold

value, scale gives beep signalization.

Caution:

Even if F8=0 (beep signal from keyboard) above function will be active.

Way of setting:

Press and hold button „ZERO” and press button „OFF”. 0000”0” will be displayed.

Insert proper value using buttons „OFF” and „ON”. Press „TARE” button to confirm

the setting. Software goes back to weighing mode.

Caution:

Set alarm value to less than 20e, so that alarm is not active.

- 8 -

2. Setting overloading alarm.

Maximal value is set as (max + 9e). for scales with maximal capacity 6kg and

resolution e=1g, value of overloading alarm equals 6.009kg. Exceeding this value

causes displaying of „FULL” indication on the display and beep sound.

Caution:

Even if F8=0 (beep signal from keyboard) beep signal on exceeding maximal

capacity will not be heard.

4.6. Backlight

If backlight is switched off, press „ZERO” for three seconds so that it switches on.

Additionally, the cursor indicates on „BL” marking. When backlight is switched on,

press button „ZERO” for 3 seconds in order to switch it off.

Caution:

Independently on backlight setting, it will be switched on a second after plugging the

scale to mains.

4.7. Battery save mode

If F7 equals 1, scale will be automatically turned off after 4 minutes from stop of any

activity done on the scale (buttons, weighing). Result of this mode is equal to

pressing button „OFF” on the scale.

4.8. Filter

Parameter F3 can be set between values 1 to 3. in case of vibration or breeze

presence, filter should be set on 3. this will cause slow down of the scale operation

and obtaining result on the scale’s display (which is slower reaching stable result of

weighing process).

4.9. Output RS232C

Scale sends data in continuous transmission. Frame length is 16 characters. Frame

starts with character 02h. it is followed by status bits, space bar, 6 characters of mass

and 6 characters of tare.

Transmission is performed in 8 bits mode with 1 start bit and 1 stop bit, no parity

control.

Caution:

Speed of transmission is set for 1200 bits/s as factory setting. This speed can be

adjusted in calibration mode.

- 9 -

4.10. Inserting digits

When inserting warning levels or while calibration, digits are inserted by buttons „×”

and „Õ”. Way of inserting digits:

- Press button „OFF” in order to move to edit mode (last digit starts flashing).

- Press button „ON”, in order to choose digit for change setting .

- pressing button „OFF”, scroll through accessible digits

0Æ1Æ2Æ3Æ4Æ5Æ6Æ7Æ8Æ9Æ0.

Instance:

Change of digit 03000 onto 12000:

•Press „OFF” in order enter edit mode. Last digit flashes - 0300”0”.

•Press „ON” three times to move to requested digit – 0”0”000

•Press „OFF” two times in order to set – 0”2”000

•Press „ON” in order to move to next digit – „0”2000

•Press „OFF” in order to set – „1”2000

•Press „TARE” in order to confirm the changes.

5. BATTERY

If low battery information is displayed, it means that power is too low for proper

operation of electronics of the scale. Battery should be charged. Using A/C power

adapter, please charge the battery. Charging can be done during operation of the

scale. If battery is not loaded while operating the scale, the electronics will be

switched off in a few minutes.

If the set is switched off just after plugging D/C power supply, it means that battery

was too low, and requires immediate charging.

If operation time on batteries got significantly shortened, open the battery casing,

disconnect its poles and replace the battery with new one.

If the scale was not used for a long period of time, please make sure the battery is

not connected.

- 10 -

6. USER RECOMMENDATIONS

Scale should be placed on tough surface. It should not be used in dusted

area with big vibrations

while weighing please place the load on the central part of the weighing pan.

Do not use chemical agents causing corrosion

do not weigh loads which mass exceeds maximal scale capacity (including

tare value)

do not overload the weighing pan. Do not leave weighed loads on the

weighing pan for a long period of time. Do not hit the weighing pan.

if the indication does not change after placing the load or button „OFF” does

not work, while powering the scale from A/C power supply, switch the scale

off by main switch on/off button and switch it on again after a moment. This

will cause restart of the scale.

Turn off the power supply and unplug the power adapter from mains when

the scale is not operating. Not authorized access to the internal parts of the

scale is forbidden with thread of loosing warranty and verification. Contact

local sales for more information in such situation.

Re-calibration of the scale can be performed after 30 minutes heating period

of the instrument.

Caution:

Setting and calibration is not accessible directly for the user. If the user is willing to

change settings, please contact local sales or service.

7. TECHNICAL PARAMETERS

Scale type: WTC/F 6 WTC/F 15 WTC/F 30

Maximal capacity 6 kg 15 kg 30 kg

Readability 1 g 1 g 2 g

Tare range -6 kg -15 kg -30 kg

Pan size 335×275 mm

Working temperature 0° - +40° C

Power supply 230V AC / 9V DC and batteries

Display LCD backlit

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