Nexisense JY Series Piston Pressure Gauge

Low metering efficiency and complicated operation of piston pressure gauge? Nexisense JY series makes pressure reference calibration more convenient and more stable

Traditional piston pressure gauges often have problems such as easy damage to the piston, inconvenient oil drainage, unintuitive position monitoring, and easy leakage of seals, resulting in low metering efficiency and frequent maintenance. Nexisense JY series piston pressure gauge effectively solves the above pain points through tungsten carbide precision grinding, low center of gravity structure, integrated protection system, external displacement sensor and all-round sewage discharge design. While ensuring 0.005 grade high precision, it greatly improves operation convenience and long-term stability, and is particularly suitable for metering scenarios that require high-reliability pressure references.

Three Core Selling Points:

• Ultimate Stability and Protection Design: The tungsten carbide piston system adopts a low center of gravity structure and an integrated protection shaft (diameter 10mm, invention patent), effectively preventing damage during use; the self-sealing system can withstand 30,000 cycles without leakage, ensuring long-term stable operation.

• High Precision and Intuitive Monitoring: The piston rod and cylinder are precision ground, with accuracy up to 0.005 grade; the external displacement proximity sensor displays the piston position in real time (0-3mm), and the digital tube displays intuitively, making the operation process controllable.

• Convenient Maintenance and Easy Integration: The all-round sewage discharge system keeps the table clean; it supports 4-20mA/HART/RS485 output, which is convenient for access to DCS, PLC or metering automation systems, realizing remote data collection and integration.

Overview

Nexisense JY series piston pressure gauge is an important pressure reference instrument, mainly used to calibrate other pressure instruments. It generates high-accuracy and high-reproducibility standard pressure based on Pascal's law and fluid static equilibrium principle. The JY type piston pressure gauge produced by our company not only meets the requirements of national verification certificates, but also pays more attention to the convenience and efficiency improvement of metrology use.

The product strictly complies with standards such as JJG59-2022 "Verification Regulation for Liquid Piston Pressure Gauges", GB/T 30432-2013 "Liquid Piston Pressure Gauges" and JJG 99-2022 "Weights". The piston system adopts tungsten carbide material for precision grinding, the external displacement sensor monitors the piston position in real time, and the all-round oil drainage system and self-sealing design significantly reduce maintenance difficulty. Nexisense optimizes the protection system and output interface on the basis of the classic piston structure, supports digital outputs such as RS485 Modbus, and strengthens industrial-grade anti-interference ability and system integration characteristics.

System integrators can connect the pressure gauge to automated metrology systems through standard output protocols to realize real-time collection, trend analysis and alarm linkage of pressure data; engineering contractors can quickly deploy in metrology verification, petroleum and petrochemical, power and other industry projects to ensure the controllability, traceability and high reliability of the pressure reference process.

This series of pressure gauges has the characteristics of high precision, stable structure, convenient operation, small maintenance volume, and flexible output. It is the preferred equipment for pressure reference calibration in industrial sites and metrology institutions.

Key Advantages

Nexisense JY series piston pressure gauge has undergone systematic optimization in the piston system, protection structure, position monitoring and output interface, with emphasis on stability, high precision, anti-interference ability and easy integration to meet the needs of long-term stable operation of B2B projects.

1. Tungsten Carbide Precision Piston System and High Precision
   The piston rod and piston cylinder are precision ground with tungsten carbide material to ensure good sensitivity. Optional accuracy: 0.005 grade (±0.005%), 0.01 grade, 0.02 grade, 0.05 grade. Even in the high-pressure range, it can still maintain extremely high reproducibility and stability, meeting the calibration needs of precision pressure instruments.

2. Low Center of Gravity and Integrated Protection Structure
   The low center of gravity design makes the piston system more stable; the tungsten carbide integrated protection structure (protection shaft diameter 10mm, same material as the piston rod, one-piece molding, invention patent) effectively prevents damage during use. This self-developed protection solution significantly improves the durability of the piston system and reduces the risk of accidental damage.

3. External Displacement Monitoring and Intuitive Display
   Equipped with an external displacement proximity sensor to display piston system position changes in real time (0-3mm), with more intuitive digital tube display. The non-embedded design does not affect the piston protection system, making it convenient for operators to monitor the pressurization process in real time and ensure measurement accuracy.

4. All-round Sewage Discharge and Self-sealing Design
   Oil drainage pipelines are set under the piston system and under the output interface, and the oil flows directly back to the oil cup to keep the table clean and hygienic. The all-round sewage discharge system far exceeds the traditional single oil drainage design. The self-sealing system sealing ring can guarantee 30,000 cycles of pressurization without leakage, with convenient operation and small maintenance volume.

5. Flexible Output and System Integration
   Supports multiple output methods such as 4-20mA, HART, and RS485 Modbus, which is convenient for access to industrial automation systems or metrology platforms. The pre-pressurization device makes pressurization easier, and the overall valve design simplifies operation (only one pressure relief valve), improving metering efficiency.

These advantages make Nexisense JY piston pressure gauge not only a high-precision pressure reference device, but also a reliable node that can be deeply integrated into intelligent metrology systems, helping users reduce calibration errors, improve metering efficiency and ensure data credibility.

Technical Specifications

The following are the main model technical parameters of the JY series (based on production range and use range):

JY-0.6 Model

JY-6 Model

JY-25 Model

JY-60 Model

JY-100 Model

JY-160 and JY-250 model parameters are similar and can be further customized according to specific needs.

Application Scenarios

Nexisense JY series piston pressure gauge is widely used in the following pressure reference calibration scenarios:

1. Metrology Verification Institutions: Used as pressure reference standard devices by metrology institutes and quality inspection centers at all levels to calibrate digital pressure gauges, precision pressure gauges and other instruments to ensure accurate value transfer.

2. Petroleum and Petrochemical Industry: Periodic calibration of various pressure transmitters and pressure gauges used in the production process to ensure process safety and metrology compliance.

3. Power and Aerospace: Calibration of pressure sensors in high-pressure equipment or precision instruments, supporting high-precision requirements.

4. Mechanical Manufacturing and Laboratories: Used as reference equipment for pressure calibration in equipment factory inspection and R&D testing to meet high reliability requirements.

5. Pharmaceutical and Fine Chemical: Traceable calibration of process control instruments to ensure that production quality meets GMP or related standards.

Wiring and Installation

This equipment is a mechanical pressure reference instrument, and the host does not require complex electrical wiring. Installation tips are as follows:

• Place on a stable workbench and ensure it is level.

• Select the corresponding weight combination according to the range, and note that gravity acceleration is configured according to the place of use.

• When the output interface is connected to the instrument under test, ensure reliable sealing.

• During operation, pressurize slowly and monitor the piston position through the external displacement sensor (keep within 0-3mm range).

• After use, discharge the medium through the sewage system to keep the table clean.

• Wiring of transmitter output module (if required): DC24V power supply, pay attention to load resistance 500Ω, use shielded cable to reduce interference, and correctly configure RS485 address and baud rate.

It is recommended to regularly check the sealing of the piston system and the accuracy of the weights for long-term use, and perform maintenance according to the equipment manual.

FAQ

Q1: What is the highest accuracy of Nexisense JY piston pressure gauge?
Optional accuracy: 0.005 grade (±0.005%), 0.01 grade, 0.02 grade, 0.05 grade, meeting different precision calibration needs.

Q2: Does it support RS485 Modbus output?
Yes. Through the transmitter output module, it can provide multiple outputs such as 4-20mA, HART, RS485 Modbus, which is convenient for integration into automated metrology systems.

Q3: How is the piston system protected from damage?
It adopts a tungsten carbide integrated protection structure (invention patent). The protection shaft is made of the same material as the piston rod and is integrally formed, effectively preventing damage during use.

Q4: What is the applicable medium?
Low-pressure models use mixed oil of transformer oil and aviation kerosene (mass ratio 3:1), and high-pressure models use diisooctyl sebacate, which can be selected according to needs.

Q5: Is the operation convenient? What is the maintenance volume?
Equipped with pre-pressurization device and single pressure relief valve, the operation is simplified; the all-round sewage discharge system keeps it clean, and the self-sealing design reduces leakage, with overall small maintenance volume.

Q6: How to choose the appropriate model?
Choose the corresponding model according to the required pressure range (0.06MPa to 250MPa) (such as JY-60 for 1-60MPa). Welcome to provide specific calibration needs and accuracy requirements, and we will give professional selection suggestions.

Summary

Nexisense JY series piston pressure gauge takes the tungsten carbide precision piston system and patented protection structure as the core. With high stability, high precision, external displacement monitoring and flexible output methods such as RS485, it provides professional and reliable pressure reference solutions for metrology verification institutions and engineering users. It effectively solves the pain points of traditional piston pressure gauges in terms of protection, convenience and integration, and ensures the accuracy and efficiency of the pressure calibration process.

Whether in laboratory value transfer or industrial site instrument calibration, Nexisense JY piston pressure gauge can become your reliable metrology guarantee tool.

Need targeted selection suggestions, RS485 integration guidance, weight configuration confirmation or project quotation? Welcome to contact the Nexisense technical team. We will provide customized recommendations and complete technical support based on your pressure range, accuracy requirements, use environment and system integration needs. Take action immediately to make pressure reference metrology more stable, more convenient and more efficient.