Nexisense Piston Type Pressure Vacuum Gauge (JY-0.25/JY-0.4/JY-0.6): High-Precision Vacuum Pressure Gauge and Transmitter Verification Reference Equipment

In the verification and calibration of vacuum pressure gauges, vacuum pressure transmitters and precision pressure instruments, the piston type pressure vacuum gauge, as a national statutory metrology standard equipment, has extremely high accuracy and reliability. Nexisense JY-0.25, JY-0.4 and JY-0.6 series piston type pressure vacuum gauges are specially designed for testing vacuum pressure gauges and vacuum pressure transmitters, and are currently the most cost-effective vacuum pressure calibration reference equipment.

This series of products covers pressure ranges -0.1～0.25MPa, -0.1～0.4MPa and -0.1～0.6MPa, with optional accuracy grades of 0.02% and 0.05%, fully complying with JJG236-2009 "Verification Regulation for Piston Type Pressure Vacuum Gauges" national metrology verification regulation. It is suitable for verification and calibration of 0.1 grade, 0.16 grade, 0.25 grade and 0.4 grade precision pressure gauges, quantity transfer pressure gauges, verification pressure gauges and pressure transmitters.

Working Principle and Core Technical Advantages

Nexisense piston type pressure vacuum gauge adopts piston structure. Standard pressure (or vacuum) is generated by weight loading and compared with the tested instrument to achieve high-precision calibration. The main technical highlights include:

• Pressure conversion valve design: When closed, it can work independently without weights. The piston pressure gauge table can be used as an independent pressure pump or pressure source, making operation more flexible and efficient.

• Bellows pressure regulation system: Internal bellows pressure regulation with excellent air tightness, ensuring long-term stable operation.

• Quick connector technology: M20×1.5 quick connectors are used. When calibrating two tested gauges simultaneously, there is absolutely no leakage, significantly improving verification efficiency.

• Weight correction function: Weights have been corrected for pressure deformation coefficient and local gravity acceleration to ensure the accuracy of measurement results.

• Process connection: Connection thread M20×1.5, working medium is clean compressed air or bottled nitrogen (no external compressor required), easy operation.

These designs enable the JY series piston type pressure vacuum gauge to demonstrate extremely high stability and convenience in verification work, especially suitable for high-frequency and batch verification scenarios.

Typical Application Scenarios

Nexisense piston type pressure vacuum gauge is widely used in the following fields:

• Metrology technical institutions and calibration laboratories: As vacuum pressure reference equipment for periodic verification and value transfer of precision vacuum pressure gauges, vacuum pressure transmitters and quantity transfer instruments.

• Pressure instrument manufacturing enterprises: Factory verification and quality control on production lines to ensure product metrological performance meets national standards.

• Petrochemical, power and pharmaceutical engineering: On-site vacuum pressure instrument calibration and maintenance, supporting accuracy verification of process control systems.

• Engineering project pressure standard establishment: Establishing local pressure vacuum standards for engineering laboratories to quickly complete verification of pressure transmitters, vacuum gauges and related instruments.

In scenarios requiring high-precision vacuum pressure calibration, this series of equipment can significantly improve verification efficiency and reduce manual operation errors.

Selection Guide

When selecting, it is recommended to focus on the following parameters:

• Range selection: Choose the appropriate model according to the maximum vacuum degree of the tested instrument (JY-0.25 is suitable for smaller vacuum ranges, JY-0.6 is suitable for larger vacuum ranges).

• Accuracy grade: 0.02% accuracy is recommended for metrology reference or high-precision calibration; 0.05% accuracy can be selected for conventional verification.

• Working medium: Clean compressed air or bottled nitrogen, no external compressor required, easy operation.

• Process connection: Standard M20×1.5 thread, compatible with most pressure gauge interfaces.

Nexisense provides detailed selection manuals and technical support, and can recommend the optimal configuration according to specific verification needs.

System Integration and Installation Precautions

When installing and using the piston type pressure vacuum gauge, it is recommended to note:

• The installation environment should be kept clean and dry to prevent dust from entering the system and affecting air tightness.

• Before use, confirm that the working medium is clean compressed air or bottled nitrogen. Quick connectors must be firmly connected to ensure no leakage.

• When operating the pressure conversion valve, follow the procedures to avoid misoperation causing abnormal pressure.

• Regularly check the bellows and sealing parts to ensure good system air tightness.

• For batch verification scenarios, quick connectors can be used to calibrate two tested gauges simultaneously, significantly improving efficiency.

Nexisense provides complete operation manuals, maintenance guidelines and common fault handling solutions to help users get started quickly.

OEM/ODM Customization and Bulk Supply Advantages

Nexisense supports OEM/ODM customization services for the piston type pressure vacuum gauge, including:

• Personalized customization of range, accuracy grade and connector specifications;

• Special medium adaptability design and weight customization;

• Bulk label printing, exclusive packaging and serial number management to meet collective procurement needs of laboratories and manufacturing enterprises;

• Framework agreement customers can enjoy stable delivery time, price locking and priority production services.

The products have undergone strict factory testing and metrology traceability verification, with high quality consistency, suitable for large-scale applications.

FAQ

Q1: How to choose the accuracy of Nexisense piston type pressure vacuum gauge?

A: 0.02% accuracy is suitable for high-precision metrology reference and key calibration; 0.05% accuracy is suitable for conventional production verification and engineering on-site calibration. It can be flexibly selected according to actual needs.

Q2: Does the equipment support simultaneous verification of two tested gauges?

A: Yes. Through the quick connector design, two tested gauges can be connected simultaneously for calibration with absolutely no leakage, greatly improving verification efficiency.

Q3: What is the function of the pressure conversion valve?

A: The pressure conversion valve allows the piston table to work independently as a pressure pump or pressure source when closed, without weights, making operation more flexible and convenient.

Q4: What are the requirements for the working medium?

A: Clean compressed air or bottled nitrogen is required. No external compressor is needed, simplifying on-site operation.

Q5: What matters need special attention during installation?

A: Ensure the connection thread (M20×1.5) is firmly connected, the working medium is clean and dry, and regularly check air tightness to avoid dust entering and affecting measurement accuracy.

Q6: What customization services are supported for bulk procurement?

A: Supports customization of range, accuracy, connector specifications and weights, and provides bulk label, packaging and serial number management services, suitable for collective procurement by laboratories and manufacturing enterprises.

Q7: What is the long-term stability of the equipment?

A: It adopts bellows pressure regulation system and high-stability materials such as tungsten carbide, with excellent air tightness and long-term stability, complying with national metrology verification regulation requirements.

Q8: How to integrate with existing metrology management systems?

A: The equipment is easy to operate and can be combined with host computer software to realize automatic recording and management of verification data, supporting informatization construction of metrology laboratories.

Summary

Nexisense JY-0.25/JY-0.4/JY-0.6 piston type pressure vacuum gauge provides efficient and reliable vacuum pressure calibration reference equipment for metrology laboratories, pressure instrument manufacturing enterprises and engineering projects with high-precision piston structure, bellows pressure regulation system, quick connector technology and pressure conversion valve design. This series of products excels in simplifying operation procedures, improving verification efficiency and ensuring measurement accuracy, and is the ideal choice for verification of vacuum pressure gauges and vacuum pressure transmitters.

Metrology institutions, instrument manufacturing enterprises or engineering project leaders who need detailed technical parameters, prototype testing, customization solutions or bulk supply support are welcome to contact the Nexisense technical support team at any time. We will provide professional selection suggestions and implementation assistance according to your specific verification needs to jointly ensure the accuracy and efficiency of pressure metrology work.