Chapter 1 Main Specification

1. Model： XK3190－A12 weighing indicator

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: 0～40℃；≤90%RH

11. transporting temperature: -20～50℃

Chapter 2 Installation

2.1 Front and back view of the indicator

Front View

Back View

2.2 Key functions

[Func ]   Keep pressing this button for 5 seconds more in weighing mode, it will come into

operator setting mode; less than 5 seconds, it will come into counting mode.

[Accum ] Press this button to accumulating the weight in weighing mode.

            Press this button for sample taking in counting mode

[Tare ]   Press this button to tare in weighing mode.

 [Zero ]    Press this button to zero in weighing mode.

[On/Off ]   Press this button to start the indicator when it is off; and press it to shut off upon on.

2.3 Connecting load cell to indicator

1. The 9-pin socket is used for the link-up of load cell, which has been clearly shown in the graph 2-3.

2. The 4-pin shielded cable is used, and the indicator does not have the function of long distance compensation.

■3. Indicator must be reliably connected to Load cell and shielded-cable of load cell must be

reliably connect ed to underground. If indicator is powered on, the user should not insert or

withdraw the plug in order to protect the indicator and load cell.

■4. Sensor and indicator are static sensitive devices; you must adopt anti-static measures. The

electric wielding operation and other strong electric operation are prohibited. In order to protect the operator, indicator, and relevant devices, you should install lightning rod in the thunderstorm frequently happening area

(Graph 2-3)  Drawing of connecting of load cell

Chapter 3 Operation

3.1 power on and auto zero-setting

3.1.1 The indicator will perform “999999-000000" to self-checking when turning on. Then it will enter weighing mode.

3.1.2 When power on, if loading weight on the scale deviates from the zero point, but still within zero set range, the indicator will set zero automatically; if out of range, it is necessary to adjust the zero point or recalibrate or reset.

3.2 Manual zero setting (Automatically)

3.2.1 In weighing mode, when there is some error when unloaded, press [Zero] to make the indicator to be zero.

3.2.2 If the displayed value deviates from zero point, but still within zero-range, pressing [Zero] key is available. Otherwise, [Zero] key is invalid. (In this status, please recalibrate or reset zero parameters)

3.2.3 Only when stable annunciator is on, zero operation can be available。

3.3 Tare function

When Indicator at weighing status, and displaying positive weight stable, press [ Tare ] key, indicator will deduct the displayed weight value as tare weight. Then indicator displays net weight as “0 ", and Tare sign annunciator is on.

3.4 Accumulating function

In weighing mode, when the displayed value is positive and stable as well, press [Accum] key to

accumulate the present weight and display the accumulated weight, the accumulate annunciator will

be on. Press this key again, it will back to weighing mode and the accumulate annunciator will be off.

The next accumulating operation must be performed after the weight return to be zero. When the

accumulated weight displayed, press [Func] key to clean the accumulated weight in Memory and

press [Accum] to return weighing mode. If the accumulated weight needs to be checked, please keep

the load of platform to be zero, then press [Accum] to display the accumulated weight.

3.5 Counting function

In weighing mode, press [Func] to enter the counting state, it will display “count", and press [Accum]

it will display “C00000", then press [Tare] to move the digit corresponding with the small triangle, the

number corresponding with the small triangle will be increased one by one each time after pressing

[Zero] key; and it will enter counting function after the sample number inputted and [Accum] pressed.

“0" will be displayed and the counting annunciator will be on. Press [Func] key to return weighing mode.

After entering counting mode, “count" will be displayed, press [Accum] twice times to enter counting

mode directly, indicator will display according to the result of the sampling last time. (In this process, if

the ERR4 appears, it means sampling failed, the indicator will keep the result from the last sampling)

3.6 User’s function setting

In weighing mode, keep pressing [F] for 5 seconds more, it will enter operator setting mode (mode P), there are 10 modes from P1 to P10 for option, press [Accum] to choose the mode and press [Tare] to choose the parameter. The description of parameter as follows:

1、P1    x kg  Lb change

X=1: kg display

X=2: Lb display

2、P2    x automatically power off

X=1: No this function

X=2: Power off 10 minutes later

X=3： 20 minutes

X=4： 30 minutes

  3、P3     x Baud rate setting

X=1: 9600

X=2: 4800

X=3: 2400

X=4: 1200

4、P4     x RS232 Net/Gross weight output option

X=1: Net weight output

X=2: Gross weight output

5、P5   x   RS232 output mode option

X=1: No transmission (RS232 stop)

X=2: Continuous transmission

X=3: Continuous transmission when stable

X=4: Command mode（Z：zero，T：tare，R：transmit weight data once time）

X=5: Current loop output

X=6: Keep（Printer）

6、P6    x Backlight setting

X=1: No backlight

X=2: Automatic backlight

X=3: Keep lighting

7、P7   x       Zero-tracking scope

    X=1: 0.5e

X=2: 1.0e

X=3: 1.5e

X=4: 2.0e

X=5: 2.5e

X=6: 3.0e

X=7: 5.0e

8、P8  x      Zero key scope

X=1: 2%FS

X=2: 4%FS

X=3: 10%FS

X=4: 20%FS

9、P9  x     Zero scope upon starting

X=1: 2%FS

X=2: 4%FS

X=3: 10%FS

X=4: 20%FS

  10、P10    x       Digital filtering intensity

X=1: high

X=2: middle

X=3: low

   11. P11     X                Stabile time

        X=1:        high

        X=2:        middle

        X=3         low

   12. P12     X                Stable extent

        X=1:         low

        X=2:         middle

        X=3:         high 

3.7 Connect scoreboard to indicator (function optional)

3.7.1. Electric current or RS232 interface is used for scoreboard signal, which is transmitted in

serial binary code style. The baud rate is 600.。

■ Make sure that scoreboard and output lead are connected correctly. If there is something wrong with connection, damage will happen to output port of instrument and input port of scoreboard, sometimes, the damage is so big to influence the instrument and scoreboard. Only specially provided connecting cable is allowed to be used.

3.8 Serial communication and indicator connection

■  Make sure that communication interface output lead and computer are correctly connected, if there is something wrong with connection, damage will happen to output port of instrument and input port of computer, sometimes, the damage is so big that instrument, computer and corresponding peripherals are got involved.

■ Necessary computer technology and programming expertise are required for computer communication, which should be participated and instructed by professionals. Non-professional staff is supposed not to be involved in this regard.