Samson 3730-4 Profibus-PA Communication Valve Positioner

• Customization: Available
• Brand: Samson
• Power: Pneumatic
• Model NO.: 3730-4
• Adjusted Form: Regulated Type
• Working Type: Rotary
• Pressure: Medium Pressure
• Work Temperature: Normal Temperature
• Acting Type: Double Acting
• Material: Aluminum
• Customized: Customized
• Structure: Rack and Pinion
• Item Name: 3730-4 Electropneumatic Positioner
• Model: 3730-4
• Type Name: Electropneumatic Positioner
• Control Loop: 4 to 20 Ma
• Usage: Challenging Transit Times/Ambient Conditions
• Travel Range: 3.75-200mm Linear Travel, 24° to 100 Angular
• Electrical Load: 300 - 350Ω at 20mA
• Protection Level: IP67
• Operating Temperature Range: -20°c to 80°c
• Certification: IEC 60534-6
• Communication: Profibus-PA
• MOQ: 1PC
• Warranty: 1 Year
• Display: LCD
• Weight: 1.5kg
• Transport Package: Carton Boxes
• Specification: 24*16*12
• Trademark: Samson
• Origin: Germany
• HS Code: 9026900000
• Production Capacity: 100/Month
• Package Size: 24.00cm * 16.00cm * 12.00cm
• Package Gross Weight: 1.500kg

Product Description

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.

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.

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.

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

Packing & Delivery

Packing:Original Carton boxes

Packaging: Original cardboard box or Wodeen packaging by Express(DHL/UPS/Fedex/Aramex/EMS/SF)

Company Profile

Company 

KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters,temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.

We can offer Rosemount, Emerson,Endress+Hauser, ABBb, Yokogawa, Siemens, Fisher,Koso, Samson, Abzil, Neles, Flowserver,UE, Masoneilon etc, Brands. If you need anything please feel free to contact me.

Below are our core competitive advantages:

1. Advanced Technology & Precision Engineering

2. Robust Quality Control & Certifications

3. Customization & Versatility

4. Innovation & R&D Excellence

5. Efficient Production & Global Service

6. Sustainable & User-Centric Design

FAQ

FAQ

Q: How long will you give me the reply?

A: We will reply to you as soon as we see the information.

Q: What is the delivery time?

A: Our delivery time is within 3-7 days after we get your payment; 

for large qty mass orders, the time should be confirmed again for you.

Q: How about your package?

A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.

Q: How about the payment terms?

A: You can choose T/T.

Q: Do you provide samples?

A: Yes, we have materials in stock to help you to get the samples as soon as we can.

Q: What is the MOQ?

A:1PC.

Q: Can I get a lower price if I order large quantities?

A: Yes, cheaper prices with more bigger size orders.

Q:Who we are
A: We focus on the instrument and transmitters industry, mainly selling world-famous instrument and transmitters brands.

Q:Our advantage
A:We have been in the industry for many years, and we have strong supply chain relationships and large inventories, with great price advantages. 
I will try my best to give you the best price,prove that we are sincere. 

Q:Can't find the model you need?
A:We have only shown some models,If the model you need is not found here,please contact us

Q:What else can you get product from our store?
A:We have a professional and efficient technical team. We will serve you 7X24 hours. If you have any questions about our products, please do not hesitate to contact us soon