YK-3 Intelligent Explosion-Proof Digital Pressure Controller: On-site Pressure Measurement and Control Solution for System Integration and Engineering Projects

In the automation system integration and engineering projects of industrial sites such as petrochemical, energy, hydropower and mechanical hydraulic systems, the local real-time monitoring, display and control of pressure parameters are key links to ensure safe equipment operation, realize process interlocking and reduce manual intervention. For system integrators, project contractors and on-site engineers, traditional mechanical pressure gauges often fail to meet the requirements of digital output and automatic control, while multi-functional intelligent digital pressure controllers have become the preferred choice for on-site measurement and control nodes.

Nexisense YK-3 intelligent explosion-proof digital pressure controller is an intelligent measurement and control product that integrates pressure measurement, digital display, analog output and switch control. The front end adopts a piezoresistive pressure sensor with isolation diaphragm and oil filling. Through high-precision A/D conversion and microprocessor operation processing, it realizes accurate on-site display and reliable control. The product has a compact structure and simple operation, and is widely suitable for explosion-proof or complex working condition environments that require local measurement and control, providing efficient and stable pressure measurement and control support for engineering projects.

Product Overview and Working Principle

YK-3 intelligent pressure controller adopts a fully electronic structure design. The front-end piezoresistive pressure sensor converts the medium pressure into an electrical signal. After high-precision A/D conversion, the microprocessor performs arithmetic processing to drive 4-digit LED to display the actual pressure value. At the same time, it outputs one analog signal (optional 4-20mA) and two switch signals (relay output) for control or alarm.

The core advantage of the product lies in the integrated design: measurement, display, output and control functions are highly integrated, reducing the number of on-site instruments and wiring complexity. The piezoresistive sensor has good stability and anti-vibration performance, suitable for industrial sites with large vibration. The instrument supports on-site parameter setting, including control point upper and lower limits, delay time and output mode, which is convenient for engineering personnel to quickly debug according to process requirements.

In addition, the product supports explosion-proof design and is suitable for hazardous areas with flammable and explosive gases, ensuring on-site safety and compliance.

Core Performance and Features

• 100 standard instrument installation method, convenient for panel or direct on-site installation.

• 4-digit LED clear display, no visual error, supports real-time pressure reading.

• On-site setting of control points, supports two independent relay outputs for high/low limit alarm or equipment start/stop control.

• One analog output (4-20mA optional), convenient for connecting to upper computer or PLC system.

• Simple operation, flexible key settings, safe and reliable.

• Fully electronic structure, strong anti-interference ability, suitable for complex electromagnetic environment.

These features make the YK-3 series have good practicality and integration in on-site measurement and control scenarios.

Technical Parameters

The product supports customized development and can adjust the range, output type and control logic according to the engineering site working conditions.

Industry Application Scenarios

YK-3 intelligent explosion-proof digital pressure controller is suitable for various engineering projects that require local pressure monitoring and automatic control:

• Petrochemical and hazardous chemical sites: Pressure monitoring and high/low limit alarm control for pipelines, storage tanks and reaction equipment, supporting deployment in explosion-proof areas.

• Hydropower and energy systems: Pressure measurement and control for water pump stations, hydraulic stations and compressors, realizing automatic start/stop protection.

• Mechanical and hydraulic equipment: Pressure display and interlocking control for hydraulic systems and lubricating oil circuits, ensuring safe equipment operation.

• Metallurgy and building materials industry: On-site monitoring and regulation of gas pipelines or medium pressure.

• General industrial sites: Pressure measurement and control for various process pipelines, used as independent control nodes or PLC auxiliary equipment.

In the above scenarios, the instrument can directly realize local sound and light alarm, valve control or pump group interlocking, reducing dependence on the upper system and improving on-site response speed.

Equipment Selection and Installation Guide

When selecting for engineering procurement and system integration, it is recommended to focus on:

• Range selection: Determine according to the maximum working pressure of the process to ensure that the working pressure is within a reasonable range of the range to guarantee accuracy and service life.

• Output configuration: Choose the version with 4-20mA analog output when remote transmission is required; simplify configuration when only local control is needed.

• Control logic: Two switch outputs support independent high/low limit setting, suitable for different process protection requirements.

• Installation environment: Evaluate on-site vibration, temperature and protection requirements, and confirm medium compatibility.

During installation, it is recommended to adopt the standard 100 instrument installation method to ensure firm wiring and compliance with explosion-proof specifications. On-site debugging can directly set control points through keys without complex tools.

Nexisense provides installation guidance and selection support to help integrators quickly complete project implementation.

System Integration and On-site Control Precautions

YK-3 series can be used as an independent measurement and control unit, and can also be used with PLC and DCS systems:

• Analog output can be directly connected to PLC analog input module to realize centralized monitoring.

• Two switch outputs can drive relays, contactors or alarm devices to realize local automatic control.

• On-site parameter setting function supports engineering personnel to quickly adjust control thresholds during debugging.

• Pay attention to separating power supply and signals during wiring, and use shielded cables to improve anti-interference ability.

For projects requiring higher integration, it can be combined with other Nexisense sensor products to build a complete on-site measurement and control solution.

OEM/ODM Customization, Bulk Supply and Quality Control

Nexisense supports OEM/ODM customization services for YK-3 series, including:

• Customization of range, accuracy, output type and control logic.

• Personalized design of shell material, display mode and interface form.

• Optimization of explosion-proof rating and adaptability to special working conditions.

• Bulk labeling, packaging and serial number management to meet engineering project collective procurement requirements.

The products have undergone strict factory testing and environmental reliability verification to ensure consistent quality in batch delivery. Standard delivery time is stable, and framework agreement long-term supply is supported.

Real Project Application Cases

In a hydraulic station renovation project of a certain chemical enterprise, the integrator selected multiple YK-3 intelligent pressure controllers to realize local monitoring and automatic protection of pump group pressure. The instrument directly controls pump start/stop through switch output, and uploads signals to PLC system through analog signal, significantly reducing on-site failure rate and significantly improving project operation and maintenance efficiency.

In another hydropower pump station project, the explosion-proof YK-3 instrument was deployed on high-pressure pipeline site, displaying pressure in real time and realizing high limit alarm interlocking, ensuring safe and stable operation of the equipment.

FAQ

Q1: How to flexibly configure the two switch outputs of YK-3 intelligent pressure controller?

A: The two relay outputs support independent high/low limit setting and can be used respectively for high limit alarm, low limit protection or start/stop control of different equipment. On site, the threshold and delay time can be directly adjusted through keys.

Q2: What parameters should be paid attention to when integrating the analog output with the upper system?

A: The standard 4-20mA output corresponds to the full range, and the load resistance must meet the instrument requirements. Integrators can wire according to the PLC analog input module specifications and perform on-site zero point and range verification.

Q3: How does the instrument ensure measurement stability in mechanical sites with large vibration?

A: The product adopts piezoresistive sensor and anti-vibration structure design, suitable for vibration environments such as hydraulic and compressor. It is recommended to use shock-absorbing brackets during installation to further improve long-term stability.

Q4: What customization content is supported for bulk procurement?

A: Supports customization of range, control logic, output type, shell identification and special explosion-proof requirements. Nexisense can provide dedicated production and inspection process to ensure batch product consistency.

Q5: Is the instrument available when the medium temperature exceeds the -20℃~70℃ range?

A: The standard medium temperature is -20℃~70℃. For working conditions beyond the range, it is recommended to add medium isolation or cooling measures, or select a dedicated high-temperature/low-temperature version.

Q6: How to perform control point setting and parameter modification on site?

A: The instrument is equipped with a key operation interface, supporting direct on-site setting of control upper and lower limits, delay and output mode without additional programming tools.

Q7: Which hazardous areas is the explosion-proof version suitable for?

A: The product has explosion-proof design and is suitable for petrochemical and chemical sites with flammable and explosive gases. During integration, installation and wiring must strictly follow explosion-proof specifications.

Q8: When used with PLC system, how to realize the combination of local control and remote monitoring?

A: Local switch quantity realizes fast response protection, and analog output is uploaded to PLC to realize centralized monitoring and data recording, forming a reliable on-site-remote combined control architecture.

Summary

Nexisense YK-3 intelligent explosion-proof digital pressure controller provides system integrators and engineering companies with a reliable pressure measurement and control solution suitable for industrial sites with piezoresistive sensor technology, integrated measurement and control design and flexible output configuration. In the context of increasingly higher requirements for process safety and automation control, choosing a digital pressure controller with integrated functions and convenient operation can effectively simplify on-site wiring, improve response speed and reduce overall project costs.

System integrators, project leaders or technical procurement personnel who need detailed technical parameters, prototype testing, OEM 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 engineering needs to jointly promote the safe and efficient implementation of the project.