Virtual Measurements & Control VB-302 Instruction Manual
SPECIFICATIONS
A
p
Model number Capacity Graduation Platter Size Windshield
VB-302-500 500g 0.01g
Net/gross weight 510 / 620g
Package
Operating Temp.
Power source
6×AA Size Batteries or AC/DC
Adapter 12V/100mA (optional)
Standard carton: 29×22×14(cm3)
8 Units in one box: 60×45×45(cm
0-40℃(32-104℉)
∅ 100mm
Ye s
3
)
FEATURES
Auto shut off (selectable) ● Auto calibration
Auto zero tracking
Low batter indication
Large LCD (6digits 15 mm high)
Stability indication
http://www.balances.com
● Auto backlight (selectable)
●g/oz/lb/dwt/tl.H(tl.T)/ct/ozt/pcs
● with counting function
PRECISION BALANCE
MODEL : VB-302
www.balances.com is your deep discount distributor
INSTRUCTION MANUAL
USA ASI
Virtual Measurements & c ontrol.Inc. Virtual Measurements & c ontrol (Asia) Pte.Ltd.
3196 Coffey La ne,Suite 604, 24 Hillview Terrace Singapore 6692 35
Santa Rosa, CA 95403, USA Tel: (65) 67625522 Fax: (65) 6763 6656
Tel: (707) 573 3111 Fax: (707) 573 3113 sales@virtualmc.com
htt
://www.virtualmc.com
C
SAFETY PRECAUTIONS
All safety messages are identified by the following the words "WARNING" and
"CAUTION". These words mean the following:
Important information to alert you to a
situation that might cause serious injury and
△ WARNING
CAUTION
△
When using the scale/balance, the following safety precautions should always be
followed.
Use only the AC adaptor with the scale/balance. Other adaptor may cause
damage. (AC adaptor is optional)
Avoid installing the scale/balance in direct sunlight, this may cause discoloration or
malfunctions.
Do not mix the type of batteries. Replace all other batteries at the same time.
If the scale/balance is not to be used for a long period of time, remove all batteries
from the battery compartment to avoid leakage which may cause damage to the
instrument.
Avoid overloading that could cause damage to the scale/balance.
Do not drop water in the scale/balance that is not water-resistant. It causes damage,
if inside of the scale/balance is wet.
Matter charged static electricity could influence the weighing. Discharge the static
electricity. As example, the method is to use the electrification prevention spray, to
spray it to both side of weighing platform.
damage to your property if instructions are
not followed.
Important information that tells how to prevent
damage to equipment.
WARNING
△
CAUTION
△
1
7. Place the items that you want to count onto the tray and the total number of items
will show on the display.
8. Press the [UNIT] key to exit the counting function and return to normal weighing
or you can press ON/OFF to turn the scale off to exit.
NOTE: the weight of unit sample > 10e.
CALIBRATION
When to calibrate
Calibration may be required when it is initially installed, if the scale/balance is
moved to a substantial distance.This is necessary because the weight of a mass in
one location is not necessarily the same in another location. Also, with time and use,
mechanical deviations may occur.
How to calibrate
1. Before entering calibration mode, press [ON/OFF] to turn the power on for 5
minutes.
2. select the calibration unit
Press
[ON/OFF]
press[ON/OFF],the display will show “ ”,the
unit .Press [ZERO] key, the
oz or lb) .Now the calibration unit is selected.
3. Enter calibration mode
Press
[ON/OFF]
while keeping pressing
again,the display show”888888” and then display all segments, finally show the
A/D value .
4. Calibration by the weight
Wait for the stable indicator to be displayed, Press
the display will show "00SAVE",then the display show the calibration weigh ,Place
the calibration weight on platform, after the stable indicator is displayed, then
press [UNIT], waiting for 3 seconds, the display will show "00SAVE"and return to
A/D value, now calibration is finished.
Press
5.
[ON/OFF]
check some weight readings , if not, repeat steps 3-5.
6. Return to weighing mode
Press [ON/OFF] to turn the power off. Press [ON/OFF] again to turn on the
power and the scale/balance return to the weighing mode.
to turn the power off. Press and hold [
AL
sign indicate the different calibration unit (eg: g
▼
to turn the power off. Press
[UNIT]
, the display will show “CAL”then press the
sign indicate the calibration
▼
[UNIT]
first, then Press
[UNIT],
, turn off the power, press
[ON/OFF]
turn on the power again,
6
] first ,then
UNIT
、
[ON/OFF]
[UNIT]
waiting for 3 seconds,
,
Loading...