Samson 3730-4 Profibus-PA Communication Valve Positioner
Product Description
3730-4 Electro Pneumatic positioner(Profibus)
The Type 3730 electro-pneumatic positioner series is designed to work with general industrial applications. This positioner series includes several model versions to meet any end user or process requirements. Basic control positioners are the 3730-0 and 3730-1.
Starting with the 3730-2 the positioner includes full function parameterization and advanced diagnostics. Above the 3730-2 SAMSON introduces communication protocol such as HART (3730-3), Profibus (3730-4), and Foundation Fieldbus (3730-5). Full function parameterization includes characterizing the reference variable, travel range, characteristic (i.e. linear and equal percentage), and performance characteristics (i.e. PID control coefficients). Advance diagnostics includes functions like status message logging, data logging, histograms (travel setpoint deviation, and cycle counter), drive signals (steady and hysteresis), end position trending, static characteristic testing, partial stroke testing, and full stroke testing.
Starting with the 3730-2 the positioner includes full function parameterization and advanced diagnostics. Above the 3730-2 SAMSON introduces communication protocol such as HART (3730-3), Profibus (3730-4), and Foundation Fieldbus (3730-5). Full function parameterization includes characterizing the reference variable, travel range, characteristic (i.e. linear and equal percentage), and performance characteristics (i.e. PID control coefficients). Advance diagnostics includes functions like status message logging, data logging, histograms (travel setpoint deviation, and cycle counter), drive signals (steady and hysteresis), end position trending, static characteristic testing, partial stroke testing, and full stroke testing.
Special features
Communication Capability: Integrates PROFIBUS-PA communication interface, which can seamlessly interact with mainstream PLC and DCS systems such as Siemens and ABB, enabling remote parameter configuration and real-time data monitoring. It supports both periodic and aperiodic data exchange.
Full-function Parameterization: Allows definition of travel range, control characteristics (linear/equal percentage), and PID coefficients, etc., to meet different control requirements.
Advanced Diagnostic Functions: Includes functions such as data recording, histogram analysis (travel deviation, cycle count statistics), valve position alarm, and EXPERT/EXPERT+ self-diagnosis (including travel trend analysis, static characteristic testing, and fault alarm for abnormal air supply pressure, etc.). It complies with NAMUR recommendation NE 107, and the DTM file can be integrated into the FDT/DTM platform for convenient diagnosis and monitoring.
Installation Flexibility: Can be installed in any desired position (except suspended), and is suitable for various mounting methods of different actuators. The rotatable display makes it easy to read in any mounting position.
Full-function Parameterization: Allows definition of travel range, control characteristics (linear/equal percentage), and PID coefficients, etc., to meet different control requirements.
Advanced Diagnostic Functions: Includes functions such as data recording, histogram analysis (travel deviation, cycle count statistics), valve position alarm, and EXPERT/EXPERT+ self-diagnosis (including travel trend analysis, static characteristic testing, and fault alarm for abnormal air supply pressure, etc.). It complies with NAMUR recommendation NE 107, and the DTM file can be integrated into the FDT/DTM platform for convenient diagnosis and monitoring.
Installation Flexibility: Can be installed in any desired position (except suspended), and is suitable for various mounting methods of different actuators. The rotatable display makes it easy to read in any mounting position.
Advantages
High-precision Control: With a control accuracy of final deviation ≤ 1% and hysteresis ≤ 0.3%, it can provide precise position control for pneumatic control valves, ensuring the stability and accuracy of process parameters in industrial production.
Strong Compatibility: The PROFIBUS-PA communication protocol is compatible with mainstream industrial control systems, and it can be easily integrated into different industrial automation systems. At the same time, it is suitable for various types of actuators and mounting methods, with high compatibility and flexibility.
Intelligent Diagnosis and Maintenance: The advanced diagnostic function can monitor the operating status of the device in real-time, provide detailed fault information and status reports, and support predictive maintenance, such as predicting valve stem wear, etc. This helps to reduce downtime, improve equipment availability, and save maintenance costs.
Convenient Operation and Configuration: The simple one-knob, menu-driven operation and the rotatable display make it easy for operators to configure and monitor. The automatic ID adaptation function and the availability of the DTM file also simplify the equipment replacement and integration process.
Reliable Performance: With a protection level of IP67 and a sturdy housing material (die-cast aluminum or stainless steel), it can work stably in harsh industrial environments such as dust, humidity, and corrosion. The design without gears and the use of non-volatile EEPROM for parameter storage also improve the reliability and durability of the device.
Flexible Parameter Adjustment: The adjustable output pressure limitation and tight-closing function, as well as full-function parameterization, allow users to adjust parameters according to specific process requirements, achieving optimized control performance.
Strong Compatibility: The PROFIBUS-PA communication protocol is compatible with mainstream industrial control systems, and it can be easily integrated into different industrial automation systems. At the same time, it is suitable for various types of actuators and mounting methods, with high compatibility and flexibility.
Intelligent Diagnosis and Maintenance: The advanced diagnostic function can monitor the operating status of the device in real-time, provide detailed fault information and status reports, and support predictive maintenance, such as predicting valve stem wear, etc. This helps to reduce downtime, improve equipment availability, and save maintenance costs.
Convenient Operation and Configuration: The simple one-knob, menu-driven operation and the rotatable display make it easy for operators to configure and monitor. The automatic ID adaptation function and the availability of the DTM file also simplify the equipment replacement and integration process.
Reliable Performance: With a protection level of IP67 and a sturdy housing material (die-cast aluminum or stainless steel), it can work stably in harsh industrial environments such as dust, humidity, and corrosion. The design without gears and the use of non-volatile EEPROM for parameter storage also improve the reliability and durability of the device.
Flexible Parameter Adjustment: The adjustable output pressure limitation and tight-closing function, as well as full-function parameterization, allow users to adjust parameters according to specific process requirements, achieving optimized control performance.
Specification
Communication Protocol | PROFIBUS-PA, compliant with IEC 61158/61784 standards, supports version 3.01 and is compatible with 3.02 mandatory requirements, has automatic ID adaptation function34 |
Power Supply Voltage | 20 - 30V DC (two-wire system)34 |
Electrical Load | 300 - 350Ω at 20mA4 |
Air Supply Pressure | 1.4 - 7 bar (20 - 105 psi)3 |
Control Accuracy | Final deviation ≤ 1%, hysteresis ≤ 0.3%3 |
Applicable Actuators | Linear actuators (comply with IEC 60534-6 standard) and rotary actuators (comply with VDI/VDE 3845 standard), support single-acting and double-acting control modes; when connecting to double-acting actuators, a reversing amplifier (such as type 3710) is required234 |
Mounting Methods | Can be mounted via NAMUR flanges, IEC 60534-6 standard brackets, or Samson integral accessories234 |
Protection Level | IP6734 |
Operating Temperature Range | -20°C to 80°C (may require customized cooling solution in high-temperature scenarios)4 |
Travel Range | 3.6 - 300 mm (linear), 24 - 100° (angular) |
Housing Material | Die-cast aluminum or stainless steel |
