1. Inspection: liquid level, power supply and desiccant.

2. Calibration: liquidation: press (T) peeling key to make the balance display 0.0000g, and press (CAL) calibration key to make the balance display "C" and "0". At this time, put the self-calibration weight on the scale, wait for the self-calibration weight value to be displayed and give a buzzer, and the balance will be calibrated and automatically return to the weighing state.

3. When the weighing plate is unloaded, click the "ON" button, and the balance will display self-inspection. Weigh the balance after it has stabilized for 30 minutes.

4. Simple weighing: put the sample on the weighing board, and the displayed value is the weight of the item. Read the weighing result after the number is stable.

5. Peeling: put the empty container on the balance board and display its weight value. Click the Peel button, and the displayed value will return to 0.0000g g g. Add material to the empty container and display the net weight value. The "O" on the balance indicates that the microprocessor is working. Please be patient.

6, take out the sample, don't scatter the sample on the balance.

7. Shutdown: restore zero balance and press and hold the "Off" key.

8. Turn off the power.

Extended data

workflow

Workflow description:

1. When an object is placed on the scale, pressure is applied to the sensor, which elastically deforms, thus changing the impedance. At the same time, the excitation voltage is changed and the changed analog signal is output.

2. The signal is amplified by an amplifier circuit and output to an analog-to-digital converter. It is converted into a digital signal that can be easily processed and output to CPU for operation control. The CPU outputs the results to the display according to keyboard commands and programs. Until this result is displayed.

Use function

1 The electronic scale adopts an electronic weighing device integrating modern sensor technology, electronic technology and computer technology to meet and solve the "fast, accurate, continuous and automatic" weighing requirements put forward in real life.

2. At the same time, human error is effectively eliminated, which makes it more in line with the application requirements of legal measurement management and industrial production process control.

metrological verification

1, electronic scale is a national compulsory verification measuring instrument, and its qualified products have the standards for verifying component value e and component value d, which are protected by the national metrology law.

2. According to the requirements of "Metrology Law of People's Republic of China (PRC)" and "Catalogue of Working Measuring Instruments Compulsory Verification in People's Republic of China (PRC)", all electronic scales as social public measurement standards are used by departments, enterprises and institutions as the highest measurement standards.

3. Electronic scales used for trade settlement, safety protection, medical care and environmental monitoring can only be used after passing metrological verification. Those who fail to apply for metrological verification or fail to pass the verification shall not be used.

Maintenance and maintenance of electronic balance

1, put the balance on a stable workbench to avoid vibration, airflow and sunlight.

2. Before use, adjust the level to the middle position.

3, electronic balance should be preheated according to the requirements of the manual.

4. When weighing volatile and corrosive substances, put them in a closed container to avoid corrosion and damage to the electronic scale.

5. Self-calibration or regular external calibration of the electronic balance is often carried out to ensure that it is in the best state.

6. If the electronic balance fails, it should be repaired in time, and it is not allowed to work "with illness".

7. Don't overload the operating balance to avoid damaging it.

8. If you don't use electronic weather for a long time, collect it temporarily.

References:

Baidu encyclopedia-electronic scales