Gulde 3800 SA Fisher Positioner with Digital Valve Control Technology

• Customization: Available
• Task: Program
• Structure: Combination
• Model NO.: 3800SA
• Mathematical Model: Linear
• Signal: Continuous
• Function: Automatic Control
• Certification: RoHS, CCC, CE
• Condition: New
• Customized: Non-Customized
• Material: Aluminum Alloy
• Applications: Control and Isolation Valve Applications
• Protocols1: Hart® 5 or 7
• Protocols2: Wirelesshart
• Protocols3: Foundation Fieldbus
• Protocols4: Profibus
• Transport Package: Wooden
• Trademark: Fisher
• Origin: China
• Production Capacity: 50000peices/Years

Product Description

Product Description

Gulde 3800SA

The intelligent locator is easy to use, compact in size, and easy to install. It converts a 4-20 mA input signal into a pneumatic output signal to drive the control valve actuator. Parameter settings are made through buttons and an LCD screen on the interface. The LCD screen is located inside the protective cover, thus it is not affected by the environment. Gulde 3800SA supports a Chinese interface.

Gulde 3800SA A two-stage positioner design is  adopted.  The  preamplifier  provides  a high static gain to respond to minor changes in the input signal. The pneumatic amplifier delivers sufficient compressed air to the actuator, allowing the equipment to achieve  optimal  dynamic  performance  with minimal steady-state air consumption.

 

Linkage‐Less Non‐Contact Position

Feedback - This state-of-the-art, high-performance linkage-less

feedback system eliminates the need for

physical contact between the valve stem and the

3800SA, ensuring parts remain unworn and

maximizing the cycle life of the system.

 

Built to Survive - The 3800SA is engineered to withstand

harsh conditions with fully encapsulated electronics that resist

vibration, temperature fluctuations, and corrosive

environments. A weather‐tight wiring terminal box

securely isolates field wiring connections, maintaining the

integrity of the instrument's other components.

 

Actuator Overpressure Prevention

Gulde 3800SA The smart locator can also be installed on other actuators that comply with the installation stan

dards of IEC 60534-6-1, IEC 60534-6-2, VDI/VDE 3845 and NAMUR.

Incoming signal

Analog input signal: 4-20 mA DC, standard; minimum voltage for division: the available voltage at the

instrument terminal must be 8.5 V (for analog control) or 9.0 V (for HART® communication) maxi

mum voltage: 30 V DC voltage Minimum control current: 4.0 mA (below 3.5 mA may cause the microprocessor to restart)  Overcurrent protection: The input circuit limits the current to  avoid internal damage. Reverse polarity protection: The reverse loop current will not cause instrument damag

 

 

 

 

Company Profile

Cold Valley Intelligent Technology (Shanghai) Co., Ltd. emerges as a stalwart entity within the revered Hanshan (Cold Mountain) Intelligent Technology Co. family, epitomizing the pinnacle of innovation and excellence.
Proudly identified as part of the Hanshan Intelligent Technology Co., Ltd. group, our venture embarked on its remarkable journey in the dynamic and ever-progressive metropolis of Shanghai in 2013, marking the commencement of an era defined by technological advancement and pioneering spirit.
Our visionary founding team, a consortium of industry luminaries drawn from the world's leading automation giants, boasts an extraordinary fusion of over 20 years in automation engineering coupled with a decade's expertise in consulting and implementing cutting-edge digital solutions. Their steadfast commitment is to bestow unparalleled automation and digitization services that resonate with a global clientele. Nestled strategically in Shanghai, China, the company stands as a beacon of exceptional technological prowess and forward-thinking innovation.
With more than 20 years of distinguished experience in the petrochemical sector, the company has garnered extensive insights into the multifaceted demands of automation and digitalization across the industry's entire spectrum-upstream, midstream, and downstream. We deliver expertly crafted products and comprehensive solutions, precisely tailored for a diverse array of industries including petroleum, chemical, electric power, biomedicine, APIs, food and beverage, liquor, metallurgy, and non-ferrous metals, ensuring superior performance and quality throughout the product life cycle.

FAQ