PDF User Manual

DW SERIES-LED  

(UPGRADE VERSION) 

WASH DOWN  

ELECTRONIC WEIGHING SCALE 

OPERATION MANUAL 

PLEASE READ THIS MANUAL VERY CAREFULLY BEFORE 

ATTEMPT TO OPERATE THE SCALE 

JANUARY 2004 REV 1  

Specifications subject to change without prior notice  

CONTENTS 

CAUTIONS 

1. INSTALLATION 

2. SPECIFICATIONS 

3. KEYBOARD LAYOUT AND DESCRIPTION 

4. INITIAL SETUP 

5. INSTRUCTION FOR USE 

6. TROUBLE SHOOTING 

7. DAILY CARE AND MAINTENANCE 

CAUTIONS 

1. This unit is legal for trade only when it is sealed 

(and/or stamped) and bearing a serial number. Do not 

attempt to break the seal (or stamp) affixed to this 

scale or remove the serial number. Contact your dealer 

for more information and after sales service. 

2. For most accurate weighing result, do not use this 

scale in where or when the 

environment condition falls 

beyond as those listed on 

SPECIFICATIONS

. 

3. Do not attempt to open this unit or conduct any trouble 

shootings other than those listed on 

TROUBLE SHOOTING

. 

No user serviceable parts inside. 

4. Do not submerge scale into water. 

5. Do not use pressurized water nozzle for cleaning. 

6. Do not use this scale for chemical substances or in 

any environments that contains chemical vapor. 

7. Precision measuring instrument, handle with care. 

8. Always apply the battery cap when not in charging. 

9. Check desiccant underneath the scale periodically. 

Should any part of the desiccant turns to pink 

color, contact your dealer for scale inspection. 

1. INSTALLATION 

1.1  Check and make sure that the following accessories 

are included: 

This operation manual 

Scale x 1 

Plastic platter x 1 

Stainless steel cover x 1 

Screw x 1 

Rubber cap x 1 

Power adaptor x 1 

Contact your dealer if any item is missing. 

FIG 1 

FIG 2 

1.2  Locks the plastic platter (

FIG 1 A

) to the platter 

holder, with the screw (

FIG 1 B

) included, and then 

apply the screw rubber cap (

FIG 1 C

). 

1.3  Place the stainless steel platter (

FIG 1 D

) onto 

the plastic platter. 

1.4  Power on the scale 

a. Before charging the scale or power on with the 

adaptor supplied. Please make sure the input 

voltage listed on the back of the adaptor matches 

with the local voltage. If not, do not use it 

and contact your dealer immediately. 

b. Before first time use, charge the scale for at 

least 8 hours to ensure the best performance. 

c. After battery is fully charged, remove adaptor 

from scale. Apply the battery cap (

FIG 2 E

) to 

seal the DC input jack of scale.  

2.  SPECIFICATIONS 

Readability (e) 

Model No. 
 

Capacity  

(Max) 

Default 

High 

Resolution 

DW-3000E 

3000g 

1g 

0.5g 

DW-6000E 

6000g 

2g 

1g 

DW-15KE 

15kg 

0.005kg 

0.002kg 

DW-30KE 

30kg 

0.01kg 

0.005kg 

Tare Range 

Full Tare Range (Subtractive) 

Power-on 
Zero Range 

¡Ó0% Max 

Zero Range 

¡2% Max 

Display 

LED Display 

Power Source By Built-in Rechargeable Battery or AD/DC 

Power Adaptor 

Operating 
Environment 

0

o

~40

o

C (32

o

~104

o

F),  

Non-condensed. R.H.

¡

95% 

Specifications subject to change without notice  

NOTE: 

Display resolution of avoirdupois weight units (lb/lb 

and lb/oz) always = 1/3000 

3. KEYBOARD LAYOUT AND DESCRIPTION  

1. ON/ZERO KEY 

Press this key to: (a) turn scale on or reset display 

value to zero; (b) move cursor to the right in function 

setup 

2. TARE KEY 

Press this key to: (a) tare off the weight of a container; 

(b) decrease value in function setup 

3. MODE KEY 

Press this key to: (a) shift among different weight units; 

(b) increase value in function setup

4. OFF KEY 

Press this key to turn scale off 

5. IN-CHARGE INDICATOR 

Red color: Recharging battery 

Green color: Charging completed

6. ZERO INDICATOR 

This indicator appears to indicate a zero weight status

7. TARE INDICATOR 

This indicator appears to indicate the tare function 

is in operation and weight displayed is net weight 

8. LO-BAT INDICATOR 

When this indicator appears, recharge the scale 

immediately. Failure to do so may cause unrecoverable 

damage to the rechargeable battery inside scale 

9. STANDBY INDICATOR  

This indicator appears to indicate scale is in standby 

mode (power saving function)

10. HI INDICATOR 

This indicator appears to indicate the weight detected 

above the high limit set (Weight check function)

11. OK INDICATOR 

This indicator appears to indicate the weight detected 

within the high and low limit range (Weight check 

function) 

12. LO INDICATOR 

This indicator appears to indicate the weight detected 

below the low limit set (Weight check function) 

13. AVOIRDUPOIS WEIGHT UNITS INDICATOR 

This indicator appears to indicate the weight being is 

avoirdupois weight units (lb). Two avoirdupois weight 

units are available, i.e. decimal pound (e.g. 5.62 means 

5.62 lb) and pound/ounce (e.g. 2.15.01 means 2 lb and 

15.1 ounce). 

4. INITIAL SETUP 

4.1 PLACING THE SCALE 

In order to obtain an accurate weighing result, the scale 

must be placed on a strong and level surface. 

If required, adjust the adjustable feet (

FIG 2 F

) 

underneath scale to obtain a level position. Refer to 

the bubble indicator for leveling condition. 

4.2 INTERNAL SETTING 

4.2.1 Display Segment Check 

User can enter this function to check to see if the display 

is functioning properly. 

a.  Scale is off 

b.  Press and hold 

TARE

, then press 

ON/ZERO

c.  Scale displays 

F.1

d.  Press 

TARE

 once 

e.  Scale displays 

F.2

f.  Press 

MODE

 and all segments will light up to allow 

user to check the condition of display 

g.  Press 

TARE

 for next function setup or 

ON/ZERO

 to 

restart the scale 

4.2.2 Select Auto Power Off Setting  

The scale is equipped with 

Auto Power Off Function

. The 

scale will power off automatically if it is not used 

for 4 minutes. Follow the below steps to enable/disable 

Auto Power Off Function.

a.  Scale is off 

b.  Press and hold 

TARE

, then press 

ON/ZERO

c.  Scale displays 

F.1

d.  Press 

TARE

 three times 

e.  Scale displays 

F.4

f.  Press 

MODE

 to shift between 

0._OFF

 and 

4._OFF

-To enable 

Auto Power Off Function

, press 

TARE

 when 

4._OFF

 appears 

-To disable 

Auto Power Off Function

, press 

TARE

 when 

0._OFF

 appears 

g. Press 

ON/ZERO

 to restart the scale or 

TARE

 for next 

function setup 

4.2.3 Select RS-232 Baud Rate & Protocol 

This scale is equipped with 4 RS232C output baud rate 

and 2 transmission protocol settings for user to select.  

a.  Scale is off 

b.  Press and hold 

TARE

, then press 

ON/ZERO

c.  Scale displays 

F.1

d.  Press 

TARE

 four times 

e.  Scale displays 

F.5

f.  Press 

MODE

 to select baud rate of 4800, 9600, 19200, 

38400 

g.  Press and hold 

MODE

 for 2 seconds to enter 

transmission protocol setup 

h.  Press

 MODE

 to select protocol of N81 or E71  

i.  When the preferred transmission protocol shows on 

display, press 

ON/ZERO

 to confirm and restart the 

scale or 

TARE

 for next function setup 

NOTE:  

The default data output format of the scale is 

Baud Rate = 9600 

Data Bit = 8 

Stop Bit = 1 

Parity = None

4.2.4 Select Data Transmission Mode 

This scale provides 2 types of transmission mode 

depending on the requirement and environment. 

a.  Scale is off 

b.  Press and hold 

TARE

, then press 

ON/ZERO

c.  Scale displays 

F.1

d.  Press 

TARE

 five times 

e.  Scale displays 

F.7 

f.  Press

 MODE 

to select transmission mode of trAn1 or 

trAn2 

g.  When the preferred data transmission mode shows on 

display, press 

ON/ZERO

 to confirm and restart the 

scale or 

TARE

 for next function setup  

NOTE:  

¡

trAn1

¡¨ is to transmit data continuously after reading

is stabled 

¡

trAn2

¡¨ is to transmit single data only fter reading 

is stabled. However, scale will not send any data if 

weight detected is less than the minimum load. 

4.2.5 Select Auto Tare Function 

This scale is equipped with auto tare function which 

tares off the initial weight automatically when this 

function is engaged. The tare weight is automatically 

cleared when everything is removed from platter.  

a.  Scale is off 

b.  Press and hold 

TARE

, then press 

ON/ZERO

c.  Scale displays 

F.1

d.  Press 

TARE

 six times 

e.  Scale displays 

F.9 

f.  Press

 MODE 

to select between Tr._on or Tr.oFF 

-To enable 

Auto 

Tare 

Function

, press 

TARE

 when 

Tr._on

appears 

-To disable 

Auto Tare Function

, press 

TARE

 when 

Tr.oFF

 appears 

g.  Press 

ON/ZERO

 to confirm and restart the scale or 

TARE

 for next function setup  

5. INSTRUCTION FOR USE 

5.1 BEFORE WEIGHING 

Make sure that: 

a.  The plastic platter is screwed firmly and the 

stainless steel platter cover is placed on the 

plastic platter 

b.  The scale is placed on a level and strong surface 

c.  The scale is turned on 

d.  The 

ZERO INDICATOR

 is on. If not, press 

ON/ZERO

 to 

set display to zero 

5.2 WEIGHING 

a.  Always place an object onto the platter gently. 

Excessive force applied to platter may cause damages 

to sensor inside scale 

b.  The weight of the object would be displayed 

automatically 

c.  It is a good practice to remove all loads from platter 

after weighing. It would prolong the lifetime of 

scale 

5.3 SELECT WEIGHT UNIT 

Press 

MODE

 to shift between metric or avoirdupois weight 

units. The weight unit used before power off would be 

employed when the scale is turned on again. 

NOTE:  

To comply with the law of certain countries and certain 

approval requirements, the avoirdupois weight units may 

be disabled. Contact your dealer for more information. 

5.4 SMART POWER SAVING FUNCTION  

When this function is enable, the displays digits will 

be turned off when a stable weight is detected and remains 

stable for about 10 seconds. Standby indicator appears 

to indicate scale is now in standby mode. 

Display will be automatically turned on again when a 

different weight is detected. 

5.4.1 Select Power Saving Setting  

The scale is equipped with smart 

POWER SAVING FUNCTION

. 

Default setting = enable. Follow the below step to enable 

or disable this function.  

a.  Remove all loads from platter 

b.  Turn scale on 

c.  Scale displays zero weight; if not, press 

ON/ZERO

d.  Press and hold

 ON/ZERO

. Scale displays: 

-L._oFF

 = Function enable 

-L1._on = 

Function disable 

5.5 SET DISPLAYED VALUE TO ZERO WHEN UNLOADED  

Press 

ON/ZERO

 can eliminate a positive or negative value 

when scale is not at its zero. After 

ON/ZERO 

is pressed, 

the 

ZERO INDICATOR

 appears. 

Refer to 

SPECIFICATIONS 

for maximum zero range. 

5.6 TARE OFF THE WEIGHT OF A CONTAINER  

When a container is used, follow the below steps to 

manually tare off the weight of container and get the 

net weight. 

a.  Remove all loads away from platter 

b.  Make sure that the 

ZERO INDICATOR

 is on. 

c.  Place the container on the platter. 

d.  Press 

TARE

. 

After 

TARE

 is pressed, the 

TARE INDICATOR

 would appear. 

Refer to 

5.2

 for weighing procedures. Weight displayed 

under is the net weight of the subject matter. Refer 

to 

SPECIFICATIONS 

for maximum tare range. 

5.7 CLEAR THE TARE FUNCTION 

a.  Remove all loads from platter  

b.  The tare effect will be cancelled:  

-Automatically if automatic tare  function is 

employed, or 

-By pressing 

TARE

c.  After 

TARE

 is pressed, the 

NET INDICATOR

 would 

disappear 

5.8 WEIGHT CHECK FUNCTION 

This scale is equipped with Weight Check Function. An 

audio and video signal is generated to reflect the weight 

check result. 

5.8.1  Setting the High, Low Weight Limits and Buzzer 

Warning 

a.  Remove all loads from platter 

b.  Turn scale on 

c.  Make sure that 

ZERO INDICATOR

 is on; if not, press 

ON/ZERO

d.  Press and hold 

ON/ZERO

, then press 

TARE

e.  The 

HI INDICATOR

 appears and the cursor is flashing, 

scale is now in upper weight limit setup 

f.  Utilize 

MODE

, 

TARE

 and 

ON/ZERO

 to set the required 

high weight limit 

g.  When the require high weight limit attained, press 

and hold 

ON/ZERO

, then press 

TARE

h.  The 

LO INDICATOR

 appears and the cursor is flashing, 

scale is now in lower weight limit setup 

i.  Utilize 

MODE

, 

TARE

 and 

ON/ZERO

 to set the required 

low weight limit 

j.  When the require low weight limit attained, press 

and hold 

ON/ZERO

, then press 

TARE

k.  Scale displays buzzer warning parameter setup 

l.  Press 

MODE

 until the desired buzzer output parameter 

appears 

NOTE: 

-bb_L

. = buzzer warning when weight detected 

below the low weight limit set. 

-bb_no

 = no buzzer warning. 

-bb_S.

 = buzzer warning when weight detected within 

the high and low weight limit set. 

-bb_H.L.

 = buzzer warning when weight detected 

below/above the low/high weight limit set. 

-bb_H

. = buzzer warning when weight detected above 

the high weight limit set. 

m.  When the require buzzer warning setting is selected, 

press and hold 

ON/ZERO

, then press 

TARE

 to return 

to normal operation status 

NOTE

: 

Weight Check Function will not valid when the weight 

unit engaged (e.g. lb) is different from the original 

weight unit programmed under (e.g. gram).  

Weight Check Function will not valid when the weight 

is less than minimum load.

Please refer to 

SPECIFICATION

for minimum load of each capacity. 

Weight Check Function will not valid when high and low 

weight limits are not logical (e.g. value of high weight 

limit is less than the value of the weight limit set). 

To disable Weight Check Function, simply set the high 

weight limit to zero or set the buzzer warning to 

bb_no. 

to turn off the warning. 

5.8.2 Weight Check Transaction 

Place a subject matter onto the platter. The Weight Check 

result is displayed on the display. 

a.  The 

HI INDICATOR

 will appear when weight detected 

over the high weight limit preset 

b.  The 

OK INDICATOR

 will appear when weight detected 

within the high upper and low weight limit 

c.  The 

LO INDICATOR

 will appear when weight detected 

under the low weight limit preset 

5.9 RECHARGE THE SCALE 

The scale is equipped with a built-in  rechargeable 

battery. When the 

LO-BAT INDICATOR

 appears, recharge 

the scale immediately. Failure to do so may cause 

unrecoverable damage to the rechargeable battery. 

Charging is completed when the color of the 

IN-CHARGE 

INDICATOR 

turns green. 

6. TROUBLE SHOOTING 

Syndrome 

Scale cannot be turned on  

Check: 

Is the scale charged? 

Action:

Recharge the scale for at least 8 hours 

before first time use or plug in the power 

adaptor before power on the scale. 

Check

Is the power adaptor inserted properly into 

both the electricity outlet and the DC inlet 

of scale. 

Action: 

Secure both ends of the power adaptor and 

try again. 

Syndrome 

Scale turned off automatically  

Check 

Is 

Auto Power Off Function

 employed? 

Action 

Refer to 

4.2.2

 to disable 

Auto Power Off 

Function

. 

Check 

Is the 

LO-BAT INDICATOR

 on? 

Action 

Apply the power adaptor. 

Syndrome 

Rated capacity cannot be reached  

Check

Is the 

TARE INDICATOR

 on? 

Action: 

Turn the scale off. Remove all loads from 

platter and turn on again. 

Check

Is there anything obstructing the platter? 

Action 

Remove all obstacles. 

Syndrome 

Weighing result is not accurate  

Check 

Is the scale placed in a level condition? 

Action 

Adjust the adjustable feet to a level 

condition. 

Check 

Is the scale affected by airflow, vibration 

or RFI? 

Action: 

Place the scale away from all disturbances. 

Check 

Is the scale calibrated correctly? 

Action 

Contact your dealer. 

Check 

Is the correct weight unit employed? 

Action 

Refer to 

5.3

 for weight unit setting and 

usage. 

Syndrome 

Display shows 00000 after counting down  

Check 

Is the scale overloaded? 

Action 

Remove some loads from platter.

Check 

Is the stainless steel platter cover placed 

on the platter? 

Action 

Place the stainless steel platter cover 

onto the platter. 

7. DAILY CARE AND MAINTENANCE  

7.1 

Clean the scale with a soft and damp cloth. If 

necessary, apply a mild detergent. 

7.2  

Do not use any harsh, abrasive material,  

acetone, volatile solvent, thinner or alcohol 

for cleaning. 

7.3 

Verify the accuracy of scale periodically. 

Re-calibrate the scale if necessary. 

NOTE:

 In some countries, calibration is restricted to 

be done by an authorized/qualified agent only. Contact 

your dealer for more information. 

7.4 

It is a good practice to apply the dust cover 

when operating the scale. 

7.5 

The scale must be placed horizontally during 

transportation or long time storage.  

7.6 

Remove platter from scale before transportation 

or long time storage. 

7.7 

Store scale in a dry and clean place.