Bench Shipping Scale
DWP-102E Indicator
User Manual
A12-51007 V1.0
Main Specification
1. Model:
DWP-440 bench shipping/counting scale
2. Accuracy:
GradeⅢ, n=3000
3. Sample Rate:
10 times / second
4. Load cell sensitivity:
1.5~3mV / V
5. Scale interval:
1/2/5/10/20/50 for option
6. Display:
6 bits LCD,6 state indicating signals
7. Scoreboard interface (optional):
In serial output mode:current loop signal,
transmission distance≤50m,
8. Communication interface (optional):RS232C;Baud rate 1200/2400/4800/9600 optional
9. Power supply:
Battery DC6V/4AH
10. Operating temperature/humidity:
11. transporting temperature:
1.1 Introduction
The indicator provides an accurate, fast and versatile series of general purpose weighing indicator with counting, check-weighing,
animal weighing functions and preset tare.
1.2 Specification
plastic housing
110V 50/60Hz
Power supply
built-in rechargeable battery.
6 digits
Max input
RS-232 Output
Stabilisation time
1 second typical
0°C - 50°C / 32°F - 104°F
5V/ Max 150mA
Other function
Real-time clock and units conversion
Load cells
Up to eight 350 ohms cells
1.3 Installation
The weighing indicator should be sited in a location accuracy would not be degraded.
Avoid extremes of temperature.
Avoid unstable power sources. Do not use near large users of electricity such as welding equipment or large motors.
Verify the voltage showing on the label matches the voltage in your area.
connection of loadcell:
Plastic housing connect to Din9
connection of RS232
Plastic housing connect to Din9
Pin 2 TXD Pin3 RXD Pin5 GND
Power on/off the indicator.
1) When self-checking, Press ZERO Key to enter parameter setting;
2) Set the zero point for all-subsequent weighing;
3) Move the cursor to change the digit when setting parameters or other functions.
1) When self-checking, Press TARE Key to enter fast calibration;
2) Tare the scale. Store the current weight in memory as a tare value, subtract the tare value from the weight and shows the net weight.
Entering a value using the keypad will store that value as the tare value;
3) Cycle through the functions or increase the active digit when setting value for parameters or other functions.
1) Enter / Cancel the counting mode from weighing mode when “F3 KEY”=1;
2) Accumulate and print when “F3 KEY”=2;
3) “Hold” Function keep and cancel when “F3 KEY”=3;
4) Enter pre-tare value when “F3 KEY”=4;
5) Parameter setting for animal weighing when “F3 KEY”=5;
6) Cancel or quit from the operations.
1) Select or enter the function and save the setting values of parameters;
2) View unit weight, counts and total weight when counting mode (“F3 KEY”=1);
3) View nos. of accumulated weight and total weight when “F3 KEY”=2;
4) Enter/Cancel animal weighing function when “F3 KEY”=5;
1) When self-checking, press UNIT Key to set unit conversion coefficient.
2) Unit conversion when weighing.
3.1 Power on/off
Press ON/OFF Key to power on the Indicator and the indicator self-checks, then goes into the weighing state.
3.2 Functions and parameters setting
When self-checking, press ZERO Key to enter parameter setting. Then display shows “F1 CLK”. Press TARE Key to move functions cycle.
Press FUN Key to enter the desire function or MOD Key to cancel or quite. See details on Section 4 Functions and Parameter Sections.
When self-checking, press TARE Key to enter “P8 CAL” calibration function.
When self-checking, press MOD Key to enter “P13 UT” unit setting.
When self-checking, press FUN Key to stop self-checking and it goes into the work state.
When self-checking, press UNIT Key to enter unit conversion coefficient setting.
3.3 Zero the scale
Press ZERO Key to set the zero point from which all other weighing and counting is measured. Usually this will only be necessary when the
platform is empty. When the zero point is obtained the ZERO indicator is ON.
The scale has an automatic re-zeroing function to account for minor drifting or accumulation of material on the platform. However you may
need to press ZERO Key to re-zero the scale if small amounts of weight are shown when the platform is empty.
3.4 Tare the scale
When a container is applied it needs to tare off and obtains a net weight. Remove all weights from the platform and make the platform empty.
Make sure that the ZERO indicator is on. Place a container on the platform and the container’s weight will be displayed. Press TARE Key to
tare the scale. The container’s weight will be stored as a tare value and the value will be subtracted from the display, leaving a zero value on
the display. The TARE indicator will be on to show the indicator is now under tare operation. A product is placed in the container and it will show
only the weight of the added product. The scale should be tare a second time if another is added to the first one. Again only the weight added
after tare will be displayed.
When the container is removed a negative value will be shown. If the scale was tare just before removing the container this value is the gross
weight of the container plus all products that were removed. The ZERO indicator will also be on because the platform is back to the same
condition it was when the ZERO Key was last pressed.
To clear the tare value, empty the platform and press TARE Key again, TARE indicator will be goes off.
3.5 Parts counting (KEY=1)
Tare the weight of any container that is used, leaving the empty container on the scale. Place samples on the scale. The number of samples
should match the options for parts counting, 10, 20, 50, 100 or 200 pieces.
Weighing sample: Press MOD Key to begin the parts counting. The scale shows
"P 10" asking for a sample size of 10 parts. Change the
sample size by pressing the TARE Key, the display will cycle through the options: 10/20/50/100/200.
Counting: Press FUN Key when the number matches the sample size.
Remove samples from the container and place the desire parts for
counting purpose. Display will show the number of parts (pcs).
Viewing the Unit Weight, Nos. of Counts & Total Weight:
Press FUN Key to cycle through Unit Weight, Nos. of Counts and Total Weight. (Note that the Unit Weight will show in gram.)
Press MOD Key to return to normal weighing.
3.6 Accumulation (KEY=2)
Accumulate the weight:
When weighing, press FUN Key for accumulation.
Place the products that to be weighed, when the STABLE indicator is on, press MOD Key and the weight value will be stored in the memory.
The display will show nos. of accumulation. After that it goes to normal weight display. Do other subsequent weighing by the similar procedure
as described above. Note: This Indicator can store 200 Nos. of accumulation.
View the accumulated total weight:
Empty the scale by removing the weights. Press FUN Key it will display the Nos. of weights, and then total weight.
Clear the accumulated weight from memory:
Press ZERO Key during display of the nos. of weights and total weight, accumulated weights are cleared from memory.
3.7 Holding the weight (KEY=3)
Press MOD Key to enter the hold function. After every weighing, the weight value will be kept on the display. MOD Key can be pressed to
cancel hold function.
3.8 Presetting tare value (KEY=4)
Press MOD Key to preset tare value. While every weighing, the value displayed is the one actual weight substrate the preset tare value.
3.9 Animal weighing (Key=5)
Press MOD Key to set parameters of animal weighing.
1) Stable time “Fil n”. Options: 1/2/3/4/5. 1 is the fastest and 5 is lowest. The longer of stable time, the harder to lock.
2) Display range “Rang n”. Options: 1/2/3. Option 2 is recommended.
3) Leaving lock range. If the change of weight exceeds the value, the indicator will get a new display.
Press FUN Key to enter or cancel the animal weighing function.
3.10 Check-Weighing
Check-weighing is a procedure to cause alarm to sound when the weight on the scale meets or exceeds values stored in memory. The
memory holds values for a high limit and a low limit.
Check range:
Set hi-limit and low-limit as different values, and hi-limit value is larger than low-limit value.
Check key point:
Set hi-limit and low-limit as same value.
Check mode:
Setting the parameter: Select ”F4 CHK” to enter check mode. Press FUN Key to enter and sub select “BEEP 1, BEEP 2 or BEEP 3”;
Press FUN Key, it will show “XXXXXX”. Then begin to set high-limit value; Press Enter to set low-limit value;
Mode 1: BEEP=1, never beep whether it is eligible or not, but the indicator HI or LO will be on or off to show the result. When the weight is
higher than the high-limit, indicator HI will be on, while lower than the low-limit indicator LO will be on. Otherwise indicator HI & LO will
be both on.
Mode 2: BEEP=2, beep when it is eligible;
Mode 3: BEEP=3, beep when it is not eligible.
Note: The weight must be greater than 9 scale divisions for the check weighing to operate. To disable the check-weighing function
press UNIT Key to set both high and low limit to zero.
3.11 Print (KEY=2)
Set “P10 PS”: “RS Prt” is selected for the Serial Printer.
When weighing, press MOD Key to print.
“F1 CLK”: Date and time setting
When “F1 CLK” is showed, press FUN Key. It will display the time.
Time setting:
ZERO Key: shift digit;
MOD Key: cancel and esc;
FUN Key:
value up;
enter and esc;
Select date setting mode by pressing TARE Key. “YY-MM-DD”, “MM-DD-YY” or “DD-MM-YY”
Date setting: Same as time setting.
“F2 SLP”: Sleep function For LED Version
SLP no: Set to “SLP no” means the indicator will never sleep.
SLP 3: Set the time span 3 minutes for the sleep. This sleep mode has two options: “off & dot”, which can be selected by pressing FUN Key
when displaying “SLP 3” . ”off” means cutting off the power and “dot” means only a dot at the last digit will be displayed. When “dot”, weight
changing can wake up the indicator.
SLP 5/10/15:
Same as SLP 3.
“F2 BK”: Backlight mode setting For LCD version
Auto mode: The backlight will distinguish when no action is taken during a certain time.
Off mode: The backlight is off all the time.
On mode: The backlight is always on.
“F3 KEY”: MOD Key setting
To set the MOD Key for counting, gross / net weight display switch.
To set the MOD Key for accumulation & print.
To set the MOD Key for holding the weight value.
To set the MOD Key for setting tare value in advance.
To set the MOD Key for animal weighing parameters setting.
“F4 CHK”: Check-weighing setting
Options: BEEP 1/2/3.
“F5 Brt”: Adjust the brightness of LED display. For LED version
Select 1-8 : 8 is most bright
“F5 INP”: Display the internal counts
For LCD version .
Used to check the connection of loadcell and working status of ADC circuit.
Press “TARE” to exit.
“F6 INP”: Display the internal counts
For LED version
“F6 CAL”: Calibration for LCD Version. See below:
“F7 CAL”: Calibration
“PN”: Press FUN Key to enter “PN”. Initiate password is 0000
“P1 SP”: Set AD converting speed. Options: 1/2/3/4/5. 1 is the fastest and 5 is the slowest.
“P2 AUT”: Select the “Power on “ zero maintenance, Options: 0/2/5/10/20/50/100% of the capacity.
“P3 RAN”: Select the manually zero maintenance, Options: 2/ 4/10/20/50/100% of the capacity.
“P4 AZ”: Select the auto zero maintenance, Options: 0.5d/1d/2d/4d. “d” means division.
“P5 DEC”: Set the decimal point. Options: 0/0.0/0.00/0.000/0.0000.
“P6 CAP”: Set the capacity.
“P7 INC”: Set division increment. Options: 1/2/5/10/20/50.
“P8 CAL”: Calibration
After finishing all necessary settings above, the indicator is ready for calibration. (Note: If the scale has settings already done you can directly
calibrate it.) Press FUN Key when displaying “P8 CAL”. Display will show “noLoAd”. Empty the platform by removing the weight if any. When
platform is empty and STABLE indicator is on then press FUN Key to confirm. Display shows “XXXXXX”. Set it to be the weight of the weigher
you want to put on. Press FUN Key to confirm, and it will show “LoAd”. Put the calibration weigher on the platform and press FUN Key after the
STABLE indicator is on. Indicator will go to weighing state. The calibration is finished.
“P9 INT”: Initialize the memory to ex-work state.
“P10 RS”: Communication mode.
This option is used for the RS232C serial port mode setup. Options: “RS Cot” is continuous Data Transmission for using Remote
Display or External Display, “RS Prt” is used for the Serial Printer. “RS Aut” is used for “transmission after every weighing”.
“P11 FL”: Weight adjustment for acceleration of gravity.
“P12 KB”: When “on”, keyboard is pressed with sound.
“P13 UT”: Unit setting. Lb, U1 or U2 is optional, which could be “ON” or “OFF” through pressing the FUN Key and TARE Key. When U1/U2 is
“ON”, the conversion coefficient can be set through pressing UNIT Key while self-checking. When U1/U2 is “OFF”, it could not be set unless
entering the P13 UT menu and set it “ON”.
“P14 Pn”: Press “FUN” to display “P1 ----” set the passwords and press “FUN”. It display “P2 ----” and set passwords again to confirm. When
successful ,it will show “Done”
Specifications: RS-232 output of weighing data, 1200/2400/4800/9600/19200 bps,1 stop bit, 8 data bits, No Parity.
Mode 1: Continue output
ST,GS 0.119,kg
ST for stable; US for unstable ; GS for gross weight; NT for net weight ; 0.119 for weighing value; kg for unit (kg, lb); HEX 0d and HEX oa : HEX
for hex; 0d for enter; 0a for next line.
Mode 2: Automatic output
Automatic output mode is same as continue output. The only difference is:
After weighing, when take away the goods display returns to zero, then transfers.
Data Format for normal weighing operations. Examples as follow:
Mode 3: Print. Setting Lab2
DATE 2000/02/11
TIME 21:26:56
DATE 2000/02/11
TIME 21:27:41
- - OL - -
Over range
Remove weight from the scale.
Err 1/Err 2
Date and Time not right
Reset again.
Err 4
Zero Setting Error
The scale was outside the normal zero setting
range either when it was turned on or when
the ZERO Key was pressed. Remove weight
from the scale and try again. Use the TARE
Key to set the display to zero value.