Hengaode InstrumentHJY 368Working principle of portable comprehensive calibrator‌‌Operation process and mode selection‌

It is a multifunctional device used for calibrating various parameters such as pressure and flow rate. Its operating principle involves hardware component collaboration, software control process, and environmental adaptability design.‌

‌Core working principle‌

The instrument converts physical quantities into electrical signals through built-in high-precision sensors such as pressure sensors or flow meters. The microprocessor collects and processes these signals, and outputs calibration results after internal algorithm calculations.‌

1 For example, during pressure calibration, the sensor monitors pressure changes in real time, the microprocessor performs digital analysis, and finally displays the pressure value on the display screen; During flow calibration, the instrument measures different ranges of flow through modes such as soap film, membrane or orifice flowmeter, and automatically saves the data.‌

2 The automatic zero calibration technology intelligently corrects zero drift by continuously monitoring sensor signals under no-load conditions, ensuring accurate measurement starting points.‌

‌Operation process and mode selection‌

When using, the operator needs to first place the instrument horizontally and connect it to the device to be calibrated (such as connecting the flow interface through a silicone tube).‌

2 After turning on, the instrument self-test enters the main interface, and the working mode (such as soap film flow rate, film flow rate, or high flow rate) is selected through the directional keys and confirmation keys. The system automatically enters the corresponding calibration process.‌

2 During the calibration process, the instrument displays real-time parameters such as actual flow rate and standard flow rate, and supports data printing and automatic saving.‌

‌Environmental adaptability and error control‌

Instrument design needs to adapt to environmental conditions, such as temperature（-20℃to45℃）Humidity（0to95%RH）And atmospheric pressure（86to106kPa）To reduce external interference.‌

2 If there is an abnormal reading, the system will prompt to check for overload, poor contact, or sensor cleanliness, and restore accuracy through recalibration or adjustment.‌

4 Regular maintenance and adherence to operating procedures (such as avoiding static electricity and ensuring an unloaded environment) are key to ensuring long-term accuracy