Explosion proof electronic scale is a weighing and measuring device that can be used in environments with explosive gases or explosive dust. Based on a universal electronic scale, various measures such as voltage reduction, isolation, sealing, and optical cable communication are taken to block or eliminate the ignition source electrical sparks, electrostatic sparks, and high temperatures that may occur in the internal electronic circuits of the scale, thereby ensuring that the electronic scale can work safely and reliably in the corresponding hazardous areas.
When an object is placed on the scale, pressure is applied to the sensor, which undergoes elastic deformation, causing a change in impedance. At the same time, the excitation voltage changes to output a changing analog signal. The signal is amplified by an amplification circuit and output to an analog-to-digital converter. Convert it into a digital signal that is easy to process and output it to the CPU for operation and control. The CPU outputs this result to the display based on keyboard commands and programs until it is displayed.
The characteristics of electronic scales are reflected in the following five points:
1. It is an inherently safe electrical equipment suitable for weighing and measuring explosive substances and hazardous areas. The entire equipment (including scales, sensors, and weighing instruments) can be placed in explosive hazardous areas.
2. Low power design, using LCD display, high impedance weighing sensor, built-in explosion-proof battery box, DC power supply, 4 ordinary 1000 batteries can last for 200 hours.
3. Rich in functions and easy to operate, with 9 user parameters, 11 clock system parameters, and 48 clock internal parameter settings, it has a wide range of functions and applications; Keyboard calibration, easy to operate and use.
4. Explosion proof electronic scale status indication, function self check, zero position, peeling, stability, low battery, and scale function stop status indication; Automatically perform functional testing and display any abnormal situations detected, prompting users to use it normally and facilitating troubleshooting.
5. Stainless steel shell, fully sealed design, using stainless steel shell, fully sealed design, with dustproof, waterproof and explosion-proof functions, using stainless steel cover, with a novel and beautiful appearance.