Fully Welded Pressure Transmitter for Industrial Monitoring

Он JW-PM02X(JY03) Fully Welded Pressure Transmitter is designed for accurate and stable pressure measurement in industrial processes, hydraulic systems, petrochemical applications, constant-pressure water supply, and industrial automation.

Featuring a fully welded internal sealing structure without an internal O-ring, the transmitter combines a precision pressure-sensing element with signal amplification, linear compensation, anti-interference processing, and protective circuitry.

Multiple pressure ranges, accuracy classes, output signals, supply voltages, and mechanical configurations are available to accommodate different industrial measurement requirements.

1. Обзор продукта

1.1 What Is a Fully Welded Pressure Transmitter?

A fully welded pressure transmitter converts process pressure into an electrical signal while incorporating welded joints within its pressure-sensing assembly.

The JW-PM02X(JY03) uses an internal welded sealing construction without an internal O-ring.

This design reduces dependence on elastomeric sealing elements within the welded assembly, making it a suitable option for industrial applications where mechanical sealing construction is an important consideration.

A fully welded internal structure does not eliminate the need for proper external process connection sealing.

1.2 Pressure Measurement and Signal Processing

The JW-PM02X(JY03) integrates a precision pressure-sensing element with dedicated signal-conditioning electronics.

Процесс измерения включает в себя:

1. Pressure detection through the sensing element.
2. Electrical signal amplification.
3. Linear compensation.
4. Anti-interference and protective signal processing.
5. Conversion to the selected analog or digital output.

The resulting signal can be received by compatible PLCs, RTUs, industrial controllers, and data acquisition devices.

The available signal configurations allow the transmitter to be integrated into different industrial automation and monitoring systems.

2. Технические характеристики

Available specifications depend on the selected configuration. Confirm the exact pressure range, accuracy, output, supply voltage, process connection, and environmental requirements before ordering.

2.1 Accuracy and Measurement Performance

Different accuracy classes are available to match industrial measurement requirements.

The numerical values are configuration-dependent performance indicators. Refer to the confirmed specification sheet for measurement units, reference conditions, and applicable tolerances.

For applications requiring particularly high measurement precision, explore the Высокоточный датчик давления.

2.2 Pressure Measurement Types

The JW-PM02X(JY03) supports three pressure measurement configurations.

Gauge Pressure (G)

Measures pressure relative to atmospheric pressure. Commonly used in water supply, pumps, and industrial pipeline pressure monitoring.

Sealed Gauge Pressure (S)

Measures pressure relative to a sealed reference pressure and can be selected for suitable industrial pressure measurement applications.

Absolute Pressure (A)

Measures pressure relative to a vacuum reference and is used where absolute pressure values are required.

The correct pressure type should be determined by the application’s reference pressure requirements.

3. Fully Welded Structure and Sealing Design

The fully welded sealing structure is a key distinguishing feature of the JW-PM02X(JY03).

3.1 Internal Structure Without an O-Ring

The transmitter features a welded internal sealing design without an internal O-ring.

Compared with assemblies that depend on internal elastomeric seals, this construction reduces reliance on internal sealing rings within the welded sensing assembly.

Relevant selection considerations include:

• Sealing construction
• Process pressure and pressure fluctuations
• Совместимость смачиваемых материалов
• Рабочая температура
• Long-term application conditions
• Installation requirements

The suitability of a welded pressure transmitter depends on the complete product configuration and operating environment.

3.2 Internal Sealing vs External Process Sealing

It is important to distinguish the internal welded assembly from the external process connection.

Although the internal welded sensing assembly does not use an O-ring, an external gasket or sealing ring may still be required at the process connection.

Correct mechanical installation and process sealing remain essential for reliable pressure measurement.

3.3 Fully Welded vs Conventional Pressure Transmitter

The primary distinction is the internal mechanical sealing arrangement rather than the pressure measurement principle.

4. Output Signals and Power Supply Options

The JW-PM02X(JY03) provides multiple analog and digital output configurations for integration with industrial controllers and data acquisition systems.

4.1 Analog Output Options

4–20mA Current Output

Suitable for compatible industrial analog input modules, PLCs, and process monitoring equipment.

Выходное напряжение

Selectable voltage outputs include:

• 0–5 В постоянного тока
• 0.5–4.5VDC
• 0–10 В постоянного тока

The selected voltage output must match the receiving controller’s input range and the applicable supply requirements.

4.2 Digital Output Options

RS485

Provides a digital electrical interface for compatible industrial data acquisition and control equipment.

The communication protocol and register information depend on the selected device configuration.

IIC

An IIC interface option is also available for compatible electronics and embedded integration applications.

4.3 Output Signal Selection Codes

4.4 Power Supply Selection Codes

Output signals and supply voltage options must be selected as compatible combinations.

5. Промышленные применения

5.1 Petrochemical Process Monitoring

Petrochemical facilities use pressure transmitters to monitor pressure conditions in compatible pipes, process equipment, and production systems.

The JW-PM02X(JY03) provides configurable pressure measurement options where welded sealing construction and material selection are important project considerations.

Chemical compatibility, operating conditions, and applicable safety requirements must be evaluated before installation.

5.2 Constant-Pressure Water Supply

Pressure transmitters provide measurement feedback for water supply and pump-control applications.

Типичные точки мониторинга включают:

• Water supply pipelines
• Booster pump discharge lines
• Constant-pressure pump systems
• Industrial water distribution networks

When connected to a compatible controller, pressure measurements can support automatic pump regulation and system monitoring.

5.3 Hydraulic Pressure Monitoring

Hydraulic systems require pressure measurement for control and equipment diagnostics.

Возможные области применения включают:

• Hydraulic power units
• Hydraulic manifolds
• Pump discharge monitoring
• Промышленное оборудование

The pressure range and overload requirements must be selected according to normal operating pressure and potential transient pressure peaks.

5.4 Pneumatic and Compressed Air Systems

The JW-PM02X(JY03) can be considered for compatible pneumatic and compressed air pressure measurement applications.

Pressure feedback can support equipment monitoring, process control, and industrial automation.

5.5 Industrial Measurement and Control

With selectable analog and digital outputs, the transmitter can be integrated into various industrial monitoring configurations.

Explore additional products in the Промышленные автоматические датчики категория.

6. Diaphragm and Housing Material Options

Selecting the correct materials is essential for pressure measurement in different industrial media.

6.1 Diaphragm Materials

Available diaphragm material options include:

• нержавеющая сталь 316L
• C276 alloy
• TC4 titanium alloy

Material selection should consider chemical compatibility, operating temperature, and process conditions.

6.2 Housing Materials

Available housing material options include:

• нержавеющая сталь 304
• нержавеющая сталь 316L
• C276 alloy
• TC4 titanium alloy

Additional material selections may be available for customized configurations.

The housing material and diaphragm material should be evaluated separately when selecting a transmitter for a particular application.

6.3 Measurement Media Compatibility

The transmitter can be configured for industrial fluids compatible with its selected wetted materials.

For corrosive media, confirm the full wetted-material configuration and operating conditions before selection.

7. Electrical and Process Connection Options

7.1 Electrical Connection Options

Different electrical interface configurations are available.

The electrical connection must match the required wiring arrangement and protection level.

7.2 Process Connection Options

Confirm the thread standard, process pressure, and sealing method before installation.

8. PM02X Pressure Transmitter Selection Guide

The JW-PM02X(JY03) offers multiple configurable options for different industrial pressure measurement requirements.

8.1 Example Ordering Configuration

PM02-01-S1-U1-30-C1-X001PU-[0–1] MPa

The example illustrates the configuration format. The final model code should be confirmed according to the selected product options.

8.2 How to Select the Correct Configuration

Step 1: Define the measured medium

Specify water, oil, air, compatible gases, or another process medium.

Step 2: Determine the pressure range

Consider normal pressure, maximum pressure, and possible transient pressure peaks.

Step 3: Select the pressure type

Choose gauge, sealed gauge, or absolute pressure.

Step 4: Define the accuracy requirement

Select the appropriate accuracy class based on measurement and control requirements.

Step 5: Choose the output signal and power supply

Specify compatible analog or digital signal and voltage configurations.

Step 6: Select materials and connections

Choose diaphragm material, housing material, electrical connection, and process fitting.

Step 7: Review environmental conditions

Confirm operating temperature, ingress protection, and special application requirements.

9. PLC, RTU and Industrial Monitoring Integration

The JW-PM02X(JY03) can be integrated into industrial pressure monitoring systems through compatible input modules and controllers.

9.1 PLC-Based Pressure Monitoring

A typical analog pressure monitoring architecture is:

Pressure Transmitter → Analog Input Module → PLC → Industrial Control System

The transmitter provides the pressure signal, while the PLC or controller performs measurement processing and control functions.

9.2 Remote Pressure Monitoring

The transmitter can be connected to compatible RTUs or data acquisition systems for remote monitoring.

Типичная архитектура системы выглядит следующим образом:

Pressure Transmitter → RTU / Data Logger → Communication Gateway → SCADA / Cloud Platform

Remote communication and cloud connectivity are provided by external system components.

9.3 RS485 Integration

For RS485 configurations, confirm:

• Протокол связи
• Адрес устройства
• Serial communication settings
• Карта регистрации
• Wiring arrangement
• Supply voltage compatibility

The RS485 electrical interface does not by itself specify the communication protocol.

10. Installation and Maintenance Guidelines

10.1 Process Connection Installation

Install the transmitter using the correct threaded process fitting.

Apply tightening force at the designated hexagonal wrench section.

Avoid applying mechanical torque through the sensor housing or electrical connector.

10.2 External Process Sealing

Use the appropriate external sealing method for the selected process connection.

The absence of an internal O-ring does not eliminate external connection sealing requirements.

10.3 Electrical Wiring

Verify the power supply, output signal, wiring diagram, and receiving equipment before operation.

Ensure electrical connectors and cable assemblies are correctly installed.

10.4 Pressure Overload Protection

The transmitter has a listed overload capacity of 200%.

Continuous operation should remain within the selected rated measurement range.

Pressure pulsation and hydraulic transients may require additional protection.

10.5 Environmental Protection

Select the appropriate IP protection configuration according to the installation environment.

The final ingress protection rating depends on the selected device and connector arrangement.

10.6 Inspection and Calibration

Inspect process connections, electrical wiring, and sealing conditions as part of routine maintenance.

Calibration requirements depend on the measurement accuracy, operating conditions, and application-specific maintenance schedule.

11. Why Choose JW-PM02X(JY03)?

The JW-PM02X(JY03) combines a fully welded internal sealing structure with flexible industrial pressure measurement configurations.

Its main advantages include:

• Fully welded internal construction without an internal O-ring
• Multiple measurement ranges and pressure types
• Selectable accuracy classes
• Варианты аналогового и цифрового выхода
• Different diaphragm and housing materials
• Multiple electrical and process connection configurations
• Compatibility with suitable industrial automation and monitoring equipment

These features make it a configurable option for industrial equipment manufacturers, system integrators, and engineering projects.

12. Request a Quotation

Ищу fully welded pressure transmitter for industrial pressure measurement?

JW-IoT provides configuration and quotation support for industrial pressure sensor applications.

To select the appropriate version, please provide:

• Application and measurement medium
• Pressure range and pressure type
• Требование к точности
• Output signal and supply voltage
• Electrical and process connections
• Operating temperature and environmental conditions
• Необходимое количество

Свяжитесь с JW-IoT to discuss your pressure monitoring requirements.