The Rotork YT-3303 Smart Positioner (Potentiometer Type) is a robust, microprocessor-based valve positioner engineered to deliver precise control of valve stroke using a standard 4-20 mA input signal. Designed as part of the YT-3300 series with new software, it combines proven potentiometer feedback technology with advanced auto-calibration and PID control for consistent, repeatable performance in demanding industrial environments.
| Parameter | Specification |
|---|---|
| Housing Material | Aluminum |
| Motion Type | Linear (left yoke) or Rotary |
| Acting Type | Single / Double |
| Input Signal | 4-20 mA DC |
| Minimum Current Signal | 3.2 mA (standard) |
| Supply Pressure | 0.14–0.7 MPa (1.4–7 bar) |
| Stroke | Linear: 10–150 mm; Rotary: 55–110° |
| Impedance | Max. 500 Ω @ 20 mA DC |
| Linearity / Hysteresis | ±0.5 % F.S. |
| Sensitivity / Repeatability | ±0.2 % / ±0.3 % F.S. |
| Flow Capacity | 70 LPM (Sup. = 0.14 MPa) |
| Air Consumption | Below 2 LPM (Sup. = 0.14 MPa @ idle) |
| Operating Temperature | –30 to +85 °C (standard); –40 to +85 °C (low temp) |
| Ingress Protection | IP66, Type 4X (FM) |
| Explosion Protection | ATEX, IECEx, FM, CSA, KCs, NEPSI, INMETRO, UKEX, CCC, PESO (intrinsic safety) |
Ideal for linear and rotary control valves in oil & gas, chemical processing, power generation, and water treatment plants where reliable potentiometer-based feedback and hazardous-area certifications are required.
Q: What makes the YT-3303 different from the YT-3300?
A: The YT-3303 uses a proven potentiometer for position feedback, while the YT-3300 employs a non-contact sensor (NCS).
Q: Can the positioner be installed in explosive atmospheres?
A: Yes — it holds comprehensive intrinsic safety certifications worldwide.
Q: Is HART communication available?
A: Yes, as an optional feature (suffix code 2).
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