Rotork Ytc Yt-3300 /3350 /3301 /3303 Smart Valve Positioner
Product Description
Rotork Ytc Yt-3300 /3350 /3301 /3303 Smart Valve Positioner
YT-3300 L/R Electro-Pneumatic Positioner
YT-3300 Smart Valve Positioner accurately controls valve stroke, according to input signal of 4~20mA being delivered from controller.
The Rotork YT-3300 is a smart valve positioner. It accurately controls the valve stroke according to the 4 - 20mA input signal from the controller. Equipped with a built-in microprocessor, it offers functions like auto calibration, PID control, and HART protocol communication. It has an LCD display for showing process values and calibration information, and 4 front panel pushbuttons for local configuration. The positioner also supports auto/manual switch, and provides options for feedback signals including analogue (4 - 20mA) and digital, as well as limit switch options. It can perform fully adjustable partial stroke tests (PST), and the relevant functionality can be operated locally via buttons or remotely through the communication protocol.

Benefits
Rotork Ytc Yt-3300 /3350 /3301 /3303 Smart Valve Positioner
Operational Stability: The fail freeze function ensures the valve position is maintained during signal failures, preventing unexpected process disruptions. The ability to withstand pressure changes and vibrations provides stable operation in various industrial environments.
Energy Efficiency: Near-zero air consumption in standby saves a significant amount of energy, especially beneficial for large factories, reducing operating costs.
Ease of Use and Maintenance: The LCD display and local control buttons make it convenient for on-site operation and monitoring. The modular internal structure simplifies maintenance and reduces downtime.
Accurate Control: With functions like auto calibration and PID control, it provides accurate valve positioning, improving the precision of process control. The adjustable valve characteristics and PID parameters allow for customization according to different process requirements
Rotork Ytc Yt-3300 /3350 /3301 /3303 Smart Valve Positioner
Features
Auto calibration. Simple menu structure with options to auto calibrate all parameters or zero and end points only.
• LCD display. Alphanumeric digital display for process values and calibration.
• Partial Stroke Test (PST). Fully adjustable Partial Stroke Test. All functionality can be performed and selected locally, through push buttons, or remotely with communication protocol.
• Feedback signal. Analogue and Digital feedback signals with 4 to 20 mA, mechanical and proximity switch options (Limit switch options for YT-3300 and YT-3350 models).
• PID control. Pre-calibrated and user configurable variables via front panel pushbutton menu. Auto / Manual switch. Enables closed-loop automatic
valve position control or manual positioning via the A/M switch. The manual mode is useful for troubleshooting, calibration, system testing or as a manual bypass.
• HART® communication. Allows commands, position feedback and diagnostics to be sent digitally over the current loop.
• Front panel pushbuttons for configuration. 4 robust and positive acting pushbuttons for field configuration.
• Remote Mounting Option (YT-3301 model). Remote sensor via cable to enable the positioner to be mounted away from extreme temperature.
Rotork Ytc Yt-3300 /3350 /3301 /3303 Smart Valve Positioner
Application
Oil and Gas Industry: Used in pipelines, refineries, and oil platforms to control valves for processes such as oil and gas transportation, separation, and refining.
Chemical Industry: Applied in chemical plants to control valves in reaction systems, distillation columns, and chemical fluid transportation pipelines.
Power Generation Industry: For example, in steam systems, water supply systems, and fuel supply systems of power plants. 
Pharmaceutical Industry: Where precise control of fluid flow is required in the production process, such as in the synthesis of drugs, purification processes, and the supply of raw materials and solvents. The accurate valve positioning and adjustable flow characteristics of the YT-2500 help to ensure the consistency and quality of pharmaceutical products. Also, the low air consumption and good protection features are suitable for the clean and energy-efficient requirements of pharmaceutical plants.
Other Industrial Processes: like water treatment (controlling water intake, treatment process flow, and discharge), food and beverage (controlling the flow of raw materials and products)
Specification
Input Signal
4 - 20mA DC
Minimum current signal: 3.2mA (standard type), 3.8mA (with HART)
Input Pressure
0.14 - 0.7MPa (1.4 - 7 bar)
Stroke
20 - 150mm (linear), 0 - 90° (angular)
(Some sources also mention 10 - 150mm and 55 - 110° as possible ranges for stroke, but 20 - 150mm and 0 - 90° are more commonly cited)
Impedance
Maximum 450Ω at 20mA DC
Air Supply Interface
Rc 1/4 or 1/4 NPT or G 1/4 (also can be PT 1/4 or NPT 1/4)
Pressure Gauge Interface
Rc 1/8 or 1/8 NPT (also can be PT 1/8 or NPT 1/8)
Power Interface
G 1/2 or 1/2 NPT or M20x1.5P (also can be PF 1/2)
Protection Class
IP66
Explosion Proof Class: Ex ia IIC T5/T6 Gb, Ex iaD IIIC T100℃/T85℃Db (for relevant models)
Material
Die-cast aluminum
Operating Temperature
- 40 - 85℃ (general operating temperature)
Explosion-proof temperature: - 40 - 60℃ (T5)/ - 40 - 40℃ (T6)
Storage Temperature
- 30 - 85℃
Linearity
± 0.5% F.S.
Sensitivity
± 0.2% F.S.
Repeatability
0.3% F.S.
Flow
70 LPM (when input pressure is 0.14MPa)
Weight
2kg (4.4lb)
Output Characteristics
Quick open, linear, equal percentage, user-defined (16 points)
Output Characteristic
Linear, quick open, equal percentage, user set (16 points)
Vibration Resistance
6g at 100Hz up to no resonance
Humidity
5 - 95% RH at 40°C