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YH120A Portable Manual Pressure Source
The sealing material for YH120A handheld pressure source adopts high quality sealing components, and the material is selected from high-quality stainless steel and hard aluminum alloy. Lightweight in size, easy to carry, suitable for on-site use. Simple structure, quick and effortless pressurization without leakage. It can provide a stable pressure source for on-site and laboratory calibration of pressure gauges, pressure transmitters, pressure switches, pressure sensors and other pressure instruments.
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iconProduct overview

YH120A Portable Manual Pressure Source

The sealing material for YH120A handheld pressure source adopts high quality sealing components, and the material is selected from high-quality stainless steel and hard aluminum alloy. Lightweight in size, easy to carry, suitable for on-site use. Simple structure, quick and effortless pressurization without leakage. It can provide a stable pressure source for on-site and laboratory calibration of pressure gauges, pressure transmitters, pressure switches, pressure sensors and other pressure instruments.

iconProduct function

◆Verification regulations: Comply with the latest national verification regulations to ensure the accuracy and reliability of the system meet national standards.


◆Components: high-precision pressure controller (measurement) system, fully automatic pressure generation and boosting system, standard digital pressure module (intelligent digital pressure calibrator can also be used), calibration software, computer and printer (optional), etc.


◆Fully automatic pressure control mode: It adopts a fully automatic control mode to achieve rapid pressure rise and fall, and can instantly stabilize.


◆Operation method: Parameter setting and automatic control can be performed through the upper computer software or pressure controller (lower computer) touch screen.


◆Fixed point pressure control: Set any fixed point within the range to achieve automatic pressure control at a fixed point.


◆Automatic cycle: The number of calibration points and the time and frequency of single point voltage stabilization can be edited. The system automatically divides the range into equal parts, and the pressure rise and fall cycles automatically without manual intervention.


◆Real time display: It has the function of real-time display of pressure control data, pressure curve, and error curve.


◆Touch screen display: It adopts a 10 inch touch screen display, icon style management menu, and Chinese English operation interface.


◆Display digit: The measurement value can be displayed in 4, 5, or 6 digits.


◆Misconnection protection: It has the function of misconnection protection to prevent circuit damage.


◆Double closed-loop control: using digital pressure modules or pressure calibrators as the basis for pressure control, adopting a dual closed-loop control scheme for pressure and pressure change rate, with fast response and no overshoot.


◆Protection function: It has complete protection functions, such as overvoltage and sensor failure alarms, to protect the safety of the calibrated gauge.


◆Automation function: realize full range automatic pressurization, depressurization, voltage stabilization, data acquisition, error calculation, storage and other functions.


◆Module replaceable: Different range digital pressure modules or intelligent digital pressure calibrators can be replaced as needed as standards for calibrating instruments with different ranges and accuracies.


◆Verification type: Can verify HART, Profibus PA bus pressure instruments.


◆Communication interface: Supports R232/485 and can communicate with software.


◆Diversified pressure units: supports multiple pressure units, including Pa, kPa, MPa, psi, bar, mbar, inH2O, mmH2O, inHg, mmHg, kgf/cm².


◆Pressure interface: 3 * M20 * 1.5 (expandable, built-in filtering structure).

iconTechnical index


ItemData
Pressure Range（-0.095～15）MPa
Stability0.01%F.S
Adjustment Accuracy10Pa
Pressure Interface2xM20x1.5
Working MediumAir
Overall Dimension（530×300×180）mm
Weight of Device8kg


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Frequentlyquestions

The verification process can perform data analysis, calculation and automatic identification of excess errors;

Is the hydraulic pressure of the pressure pump unstable or unable to generate pressure normally?
Reasons: 1. Insufficient fuel level in the fuel tank; 2. Damage and leakage at the pipeline joints during transportation; 3. The sealing of the "○" ring of the quick connector is damaged; 4. The air in the system is too much or not completely discharged. Methods of solution: 1. Loosen the fuel tank cap or refuel the fuel tank; 2. Tighten the pipeline joints; 3. Replace the "○" ring (diameter 9 * 2.65); 4. Repeatedly pumping the charging pump allows the air in the system to be discharged with the fuel tank.
The common reasons for unstable hydraulic pressure or inability to generate pressure normally.
1. Insufficient fuel level in the fuel tank; 2. Damage and leakage at the pipeline joints during transportation; 3. Quick connector "○" ring seal damaged; 4. Too much or uncleaned air in the system.
What are the common reasons for empty pressure of pressure pump of manual pressure calibrator?
Reasons: 1. The directional valve does not change direction properly, resulting in air leakage; 2. The positive pressure check valve or negative pressure check valve does not reset after movement, resulting in air pressure phenomenon. Methods of solution: 1. The reversing valve must be reversed in place, and the reversing valve stem cannot be suspended in mid air; 2. Check if the one-way valve seat holes for positive and negative pressure do not meet the requirements; 3. The spring is severely tilted, and the one-way valve core cannot slide freely.
What are the specific advantages of Yuanhuatc's fully automatic pressure calibrator?
Yuanhuatc has high flexibility and adopts advanced analysis algorithms and automatic control technology, which can quickly and accurately complete verification tasks.
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