Intelligent digital pressure calibrator manufacturer

Pressure calibratorDetailed information:

Pressure calibrator - Built in standard calibration Mingyu instrument is stable and reliable

MY-XZY25 pressure calibrator is another series of products designed by our company based on years of production experience and market demand, carefully designed by scientific research and technical personnel. It has complete software and hardware, stable and reliable performance, and is widely used. The pressure calibrator is a portable instrument that can be used for both AC and DC. While measuring pressure, it can also measure current and display it on an LCD screen. It is equipped with a 24VDC output. In addition, a pressure hand pump is installed on the front panel, making it an ideal on-site calibration instrument.

Pressure calibrator - Built in standard calibration Mingyu instrument is stable and reliable

1. The high-performance microprocessor of the pressure calibrator continuously corrects the zero point and linearity of the instrument, ensuring good repeatability and stability of the zero point and accuracy of the instrument over a long period of time, and high measurement accuracy.

2Using high-performance CPUs and temperature sensors to automatically compensate for instrument temperature drift, ensuring a wide range of operating temperatures with high accuracy.

3Low power consumption. After the battery is fully charged, it ensures a long continuous working time with high accuracy.

4. Constant current charging, with automatic shutdown and protection functions for overcharging and undervoltage of battery voltage, ensures that the battery is not damaged due to overcharging or undervoltage, and has a long service life (due to long-term disuse, it should be charged every three months).

5The undervoltage automatic protection function with low power consumption ensures that the instrument will not damage the battery due to undervoltage even if the operator continuously turns it on for too long due to reasons.

6The instrument has rich range functions and can be used for multiple purposes. It has multiple display styles and can simultaneously display pressure, current, water column, pressure, kilograms, and current percentage.

7The instrument has an over range alarm function. When the applied pressure exceeds the rated full range+2500 words, the instrument will displayOVERRANGE！PAnd the built-in buzzer will intermittently sound, indicating that the pressure exceeds the full range, stop pressurizing, and use fine-tuning to adjust up and down. When the current measured by the instrument exceeds 22mA, the instrument will display

showOVERRANGE！ I，And the built-in buzzer will intermittently sound, indicating thatPressure and current full-scale calibration：

①Pressure full range calibrationPress the pressure key to switch the display to KPa and mmH₂Simultaneously display the status, use a standard to pressurize the instrument to full range stability, and press the pressure and current keys at the same time. At this time, the LCD screen will display * line:FS ADJ B，The second behavior measures the pressure value. Indicates that it has entered the full-scale calibration state. At this point, simply press the backlight button to calibrate and automatically exit the full-scale calibration program, entering the normal measurement state.

②Full range current calibrationPress the current button to switch the display to display both mA and% simultaneously. Add a stable DC20.000mA standard signal between mA IN and COM, and press the pressure and current keys simultaneously. At this time, the LCD * line displays:FS ADJ BThe second line represents the measured current value, indicating that it has entered the full-scale calibration state. At this point, simply press the backlight button to calibrate and automatically exit the full calibration program, entering the normal measurement state.

8When the instrument has a special range, please note the attached page in the instruction manual and strictly follow the operating instructions. Ensure the normal use of the instrument.

Precautions for pressure calibrator:

1When the charging indicator light changes from red to green, stop charging the battery. Long term charging can easily damage high-energy batteries.

2If the instrument is not used for a long time, it should be charged once every three months.

3When the pressure adjustment of the instrument has been adjusted to the Z large or Z small position, it cannot be forcibly adjusted again to prevent damage to the internal components.

4The instrument sensor has sufficient overload capacity, but if it exceeds the overload capacity, there is a possibility of damage to the sensor.

5The silicon diaphragm of the pressure sensor is very thin: solid, particle or other hard objects should be avoided from entering the pressure output, otherwise it is easy to damage the pressure sensor.

6. Instruments should be placed in a well ventilated, dry, and non corrosive location. If there are special requirements,

Insert the probe holder into the green (or blue) probe holder. Connect the red probe to the transmitter“+”Connect the black probe to the transmitter“-”In this way, when the instrument provides 24VDC power to the transmitter, the circuit current displays the zero point current value of the pressure transmitter on the instrument LCD.

7Charging power supply: The instrument is equipped with an external switch power supply, connected to the mains 220V AC, to charge the high-energy nickel hydrogen battery of the instrument. When the charging indicator light is red, it is in charging state. When the charging indicator light is green, it indicates that the battery is fully charged. Remove the switch power supply and do not leave the instrument for a long time under low voltage. It should be charged in a timely manner.

8. Pressure output 1 and 2: When calibrating the transmitter or other online instruments, connect the transmitter or other online instruments to this interface using the provided hose to achieve detection and measurementQuantity. To calibrate the pressure gauge, simply plug this interface to check the airtightness of the hand pump system. The pressure detection range is from -98~100kPa (for each gear).

9When the instrument has negative pressure: there is a label on the casing“+ -”Positive and negative voltage switch. If positive pressure is detected, the switching valve shouldpull-up，When measuring negative pressurePress down,The pressure output can be verified by connecting the tested instrument with a hose. (Mark "+-", measure positive pressure by pulling up, measure negative pressure by pressing down, please switch between pulling up or pressing when not applying pressure).

10Air pump and fine-tuning: The air pump is a manual pressure system, and fine-tuning is a fine adjustment of the pressure value. When the pressure display value deviates up and down, fine-tuning is performed. The instrument is a static pressurization system, so when pressurized to full range, the numerical value decreases rapidly. In practical operation and use, please press the instrument display after the alarm is triggered when the full range is exceededOVERRANGE！PStabilize for 2-3 minutes, then slowly adjust with fine-tuning to adjust the display value accurately (repeatedly adjust up and down several times).

11If the instrument range is 0At around 100kPa: There is no toggle switch on the instrument. Two pressure output interfaces are connected to the tested instrument using the provided hose for calibration. When using, please use the palm of your right hand to push the hand pump forward with force. When the pressure is too high, adjust it up and down slightly.

Technical specifications of pressure calibrator

1. Pressure output: -0.095-2.5MPa,-0.095 ～ 1.6MPa，-0.095 ～ 2.0MPa

2Fine tuning control range: 0-2.5MPa

3Resolution: Pressure: Min: 1Pa; Current: Min: 1uA

4Current measurement range: 0-22mA

5DC output: 24V DC

6Accuracy: Pressure: 0.1% F.S, 0.05% F.S

Current: 0.05% ± 1d

7Environmental temperature: 5-50 ℃

8DC working time: ≥ 16h

9Display: 41/2LCD, 51/2LCD pressure and current dual display

10Relative humidity: ≤ 80% RH

11Overload capacity: 1.2 times the upper limit of the measuring range~1.5 times

12Dimensions: 240 * 170 * 255mm (length * width * height)

13Weight: 2.0Kg

14Power supply and power consumption: 220VAC 50Hz 3VA