O 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. Visão geral do produto
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.
O processo de medição inclui:
Pressure detection through the sensing element.
Electrical signal amplification.
Linear compensation.
Anti-interference and protective signal processing.
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. Especificações Técnicas
Parâmetro
Especificação
Modelo
JW-PM02X(JY03)
Tipo de produto
Fully Welded Pressure Transmitter
Faixa de pressão
Selectable kPa and MPa ranges, up to 1000 kPa and 10 MPa within the listed series
Tipo de pressão
Manômetro (G), Manômetro Selado (S), Absoluto (A)
Classe de precisão
0.1 / 0.2 (0.25) / 0.5
Sinal de saída
4–20mA, 0–5VDC, 0.5–4.5VDC, 0–10VDC, IIC, RS485
Tensão de alimentação
8–30VDC / 5–8VDC / 3.3VDC
Temperatura de compensação
0 a 50°C ou -10 a 70°C
Temperatura de operação
-20 a +85°C
Temperatura de armazenamento
-40 a +125°C
Estabilidade a longo prazo
≤0.2%FS/year or ≤0.5%FS/year
Tempo de resposta
<1 ms
Capacidade de sobrecarga
200%
Materiais do diafragma
316L / C276 / TC4
Housing Materials
304SS / 316L / C276 / TC4
Conexão elétrica
DIN43650A or other selectable connections
Conexão de Processos
M20×1.5 or other selectable connections
Grau de proteção
IP65 / IP66 / IP67 / IP68
Explosion Protection
Ex ia IIC T6 option, subject to configuration and certification confirmation
Measurement Media
Media compatible with the selected wetted materials
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.
Performance Parameter
Class 0.1
Class 0.2 (0.25)
Class 0.5
Não-linearidade
0.1
0.2 (0.25)
0.5
Repetibilidade
0.1
0.2 (0.25)
0.5
Histerese
0.1
0.2 (0.25)
0.5
Deriva Zero
0.01
0.02 (0.025)
0.05
Desvio de sensibilidade
0.01
0.02 (0.025)
0.05
The numerical values are configuration-dependent performance indicators. Refer to the confirmed specification sheet for measurement units, reference conditions, and applicable tolerances.
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
Compatibilidade do material molhado
Temperatura de operação
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
Recurso
Fully Welded Internal Design
Conventional Sealed Design
Internal sealing
Welded construction
May use elastomeric sealing
Internal O-ring
Not used in the specified assembly
May be used
Fluid compatibility
Depends on wetted materials
Depends on wetted materials and sealing components
Precisão da medição
Depends on sensor and calibration
Depends on sensor and calibration
External connection sealing
May be required
May be required
Requisitos de manutenção
Dependente da aplicação
Dependente da aplicação
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
Saída de corrente de 4–20 mA
Suitable for compatible industrial analog input modules, PLCs, and process monitoring equipment.
Saídas de tensão
Selectable voltage outputs include:
0–5 VCC
0.5–4.5VDC
0–10 VCC
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
Código
Sinal de saída
S1
4–20mA
S2
0.5–4.5VDC
S3
0–5 VCC
S4
0–10 VCC
S5
IIC
S6
RS485
ST
Customized output
4.4 Power Supply Selection Codes
Código
Tensão de alimentação
U1
8–30 VCC
U2
5–8VDC
U3
3.3VDC
Output signals and supply voltage options must be selected as compatible combinations.
5. Aplicações Industriais
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.
Os pontos de monitoramento típicos incluem:
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.
As possíveis aplicações incluem:
Hydraulic power units
Hydraulic manifolds
Pump discharge monitoring
máquinas industriais
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.
A fully welded pressure transmitter uses welded joints within the pressure-sensing assembly. The JW-PM02X(JY03) features a fully welded internal sealing structure without an internal O-ring.
Q
2.Does the JW-PM02X(JY03) use an O-ring?
A
The internal welded sensing assembly does not use an O-ring. External process connections may still require appropriate sealing components.
Q
3. Quais sinais de saída estão disponíveis?
A
Available options include 4–20mA, 0–5VDC, 0.5–4.5VDC, 0–10VDC, IIC, and RS485.
Q
4. What accuracy options are available?
A
Selectable accuracy classes include 0.1, 0.2 (0.25), and 0.5. Exact performance conditions depend on the selected configuration.
Q
5. Can this pressure transmitter measure absolute pressure?
A
Yes. Gauge, sealed gauge, and absolute pressure configurations are available.
Q
6. Is the welded pressure transmitter suitable for corrosive media?
A
It can be configured with different material options, including 316L, C276, and TC4. Suitability depends on the actual process-fluid compatibility.
Q
7. Can it connect to PLC and RTU systems?
A
Yes. The transmitter offers analog and digital output options for connection to compatible industrial controllers and data acquisition devices.
Q
8. Is an explosion-protected version available?
A
An Ex ia IIC T6 option is listed for the series. The applicable certification and exact configuration must be confirmed for hazardous-area installations.
Q
9. Can the electrical and process connections be customized?
A
Yes. Multiple electrical connector and process fitting options are available, including M20×1.5, G1/2, G1/4, and 1/2NPT connections.
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info@jingelway.com
