Instructions for use of digital pressure gauge

Digital pressure gauge combines the world-leading microprocessor technology and advanced analog-to-digital conversion algorithm to meet the requirements of high precision and low power consumption. Large-screen LCD technology and unique background light technology make the data clear and easy to read at night. Adopt imported chips, keep high value for instrument data acquisition, memory and measurement, and manually return to zero. The shell is fully sealed with stainless steel, which is corrosion-resistant and vibration-resistant, and can be used in a variety of complex environments.

Power supply part: (AC 220V is converted into) the required DC voltage and then supplied to the required circuit through the voltage stabilizing circuit, or (24V) the DC voltage is directly supplied to the required circuit through the voltage stabilizing circuit.

Signal part: the pressure of the measured medium is transmitted to the pressure sensing diaphragm of the sensor through the pressure interface. The sensor amplifies and V/A converts the induced electric signal, sends it to the CPU for processing, sets the display number, controls the switch output, and provides analog or digital output to realize the process of pressure display, control and transmission.

1. This instrument is suitable for measuring the pressure of liquid, gas or steam without explosion danger, crystallization, solidification, corrosion or weak corrosion.

2. The display part of the instrument should avoid strong light, otherwise it will affect the life of the LCD screen.

3. Under stable pressure, this instrument can be used within 10% of the upper measurement limit, but long-term out-of-range use may cause damage to the sensor. Therefore, it is suggested that 3/4 of the upper measurement limit should be used.

Principle of rapid verification system for pressure gauge manufacturers

The automatic verification system of pressure gauge manufacturers includes two parts: pressure gauge verification/calibration management system and automatic interpretation system of instrument indication value. The visual interface of the system makes the operation very simple. The operator only needs to input the necessary parameters such as range and precision, and the pointer reading of the pressure gauge can be automatically read out. The given automatic interpretation method can be used to automatically detect and interpret the accuracy of various instruments, and its accuracy depends on the resolution of the image and the limited processing time. Improve the backward situation of manual verification of pressure gauges, and improve the automation level of verification work and the stability of verification results to a certain extent.

Vacuum pressure calibrator is a commonly used pressure instrument, which has many advantages such as simple maintenance, good stability, strong durability and flexible use, and is widely used in many industries such as industry, chemical industry, petroleum, electronics, ships, machinery and so on. How much do users know about the characteristics of vacuum pressure calibrator when using it? These are also very important for users to use. Today, Wuxi Quanjun Instrument Co., Ltd. will introduce the characteristics of vacuum pressure calibrator for everyone.

Characteristics of vacuum pressure calibrator;

1. Manual pressurization, which can be used as a remote air source, can achieve the required stable pressure value by fully automatic positive and negative stroke pressurization, setting any number and directly pressing the Enter key;

2. Built-in intelligent multifunctional display instrument; Easy to carry, stable pressure output, high-definition dot matrix liquid crystal display, stability accurate to 0.01KPa, plus or minus one word change at the last decimal point;

3. Integrating positive and negative pressure, it is convenient to switch between positive and negative pressure, can be set step by step, and can automatically control the calibration process;

4. Pressure modules with different ranges can be selected for multi-range measurement, which is simple to operate and improves the verification efficiency;

5. Pressure and current/voltage measurements are all calibrated digitally;

6. Double-row LCD display with backlight;

7. Two power supply modes: AC220V and built-in rechargeable Ni-MH battery, which are convenient for field use;

8. With R232 interface, data communication can be carried out with the computer;

9. The shell is exquisite aluminum alloy box, which has strong wear resistance and seismic reliability.

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