Main Features and Functions
➢ When Input signal or supply pressure fails, Positioner keeps the current position of the valve stroke without any additional device. (Fail Freeze option)
➢ LCD display enables users to monitor the positioner status.
➢ User will easily understand the method of using 4 buttons because it work same in all versions of firmware interfaces.
➢ Positioner operates normally even there are sudden changes in supply pressure and / or high vibration environment.
➢ YT-2501 is stronger on high temperature and vibration environment because it is separated into remote sensor and positioner.
➢ The method of Auto Calibration is very simple.
➢ As an advantage of having very low air consumption, it could greatly reduce operating costs in large-scale plants.
➢ It is compatible with most of controllers.
➢ Variable orifices can be used to minimize the hunting occurrence and optimize operating conditions.
➢ Various information about positioner can be processed by HART communication. (option)
➢ Valve system becomes more stable by using 4-20 mA analog output function (option).
➢ Different valve characteristics can be adjusted – Linear, Quick Open, Equal Percentage, and User Set which user can make 5 points or 18 points characterizations.
➢ Tight Shut – Close and Shut - Open can be set.
➢ PD parameters can be adjusted in the field without any additional communicator.
➢ Split range 4 to 12 mA or 12 to 20 mA can be set.
➢ Operating temperature for remote sensor of YT-2501 series is -40 to 120 °C. Operating temperature for positioners is -30 to 80 °C (Please check certified explosion proof temperature)
➢ Hand calibration function can set Zero point or End point manually.
➢ It has IP66 protection grade. (excluding the pressure gauges)
➢ Polyester powder coating resists the corrosion process. (except YT-2550)
➢ Maintenance of the positioner is easy because of modularized inner structure.
Specification | YT2500 (Standard Base Model) | YT2501 (HART Communication Version) | YT2502 (PROFIBUS PA Version) | YT2503 (FOUNDATION Fieldbus Version) |
Product Model | Rotork YT2500 Digital Valve Controller | Rotork YT2501 HART Digital Valve Controller | Rotork YT2502 PROFIBUS PA Digital Valve Controller | Rotork YT2503 FOUNDATION Fieldbus Digital Valve Controller |
Core Communication Protocol | Basic current-pneumatic control; SFN local communication | HART 6/7 (FSK over 4-20mA two-wire loop) | PROFIBUS PA (IEC 61158-2) | FOUNDATION Fieldbus (FF) H1 (IEC 61158-2) |
Input Control Signal | 4–20 mA DC, two-wire loop-powered; configurable split-range operation; minimum driving current: 3.85 mA | 4–20 mA DC, two-wire loop-powered; configurable split-range operation; minimum driving current: 3.85 mA | 9–32 VDC bus-powered; PROFIBUS PA digital setpoint input; configurable split-range operation | 9–32 VDC bus-powered; FOUNDATION Fieldbus digital setpoint input; configurable split-range operation |
Input Resistance | 300 Ω typical at 20 mA DC | 300 Ω typical at 20 mA DC | 17.2 mA max basic current | 17.2 mA max basic current |
Output Signal | Pneumatic output to actuator; no electrical analog output | Pneumatic output to actuator; HART digital communication; optional 4-20 mA valve position feedback output | Pneumatic output to actuator; PROFIBUS PA digital communication | Pneumatic output to actuator; FOUNDATION Fieldbus digital communication |
Applicable Actuators | Pneumatic single-acting & double-acting, linear and rotary motion actuators; compliant with VDI/VDE 3845 and IEC 60534-6 international standards | Pneumatic single-acting & double-acting, linear and rotary motion actuators; compliant with VDI/VDE 3845 and IEC 60534-6 international standards | Pneumatic single-acting & double-acting, linear and rotary motion actuators; compliant with VDI/VDE 3845 and IEC 60534-6 international standards | Pneumatic single-acting & double-acting, linear and rotary motion actuators; compliant with VDI/VDE 3845 and IEC 60534-6 international standards |
Valve Travel Range | Linear: 10–120 mm (0.4–4.7 in); Rotary: 45–95° | Linear: 10–120 mm (0.4–4.7 in); Rotary: 45–95° | Linear: 10–120 mm (0.4–4.7 in); Rotary: 45–95° | Linear: 10–120 mm (0.4–4.7 in); Rotary: 45–95° |
Positioning Accuracy | ±0.5% of Full Scale (F.S.) | ±0.25% of Full Scale (F.S.) | ±0.25% of Full Scale (F.S.) | ±0.25% of Full Scale (F.S.) |
Repeatability | ±0.2% of Full Scale (F.S.) | ±0.1% of Full Scale (F.S.) | ±0.1% of Full Scale (F.S.) | ±0.1% of Full Scale (F.S.) |
Hysteresis | ≤0.2% of Full Scale (F.S.) | ≤0.1% of Full Scale (F.S.) | ≤0.1% of Full Scale (F.S.) | ≤0.1% of Full Scale (F.S.) |
Dead Band | ≤0.2% of Full Scale (F.S.) | ≤0.1% of Full Scale (F.S.) | ≤0.1% of Full Scale (F.S.) | ≤0.1% of Full Scale (F.S.) |
Configurable Flow Characteristics | Linear, Equal Percentage (EQ%), Quick Opening, 16-point custom user-defined characteristics | Linear, Equal Percentage (EQ%), Quick Opening, 20-point custom user-defined characteristics | Linear, Equal Percentage (EQ%), Quick Opening, 20-point custom user-defined characteristics | Linear, Equal Percentage (EQ%), Quick Opening, 20-point custom user-defined characteristics |
Supply Air Pressure Range | 140 kPa to 700 kPa (1.4 bar to 7 bar / 20 psi to 100 psi) | 140 kPa to 700 kPa (1.4 bar to 7 bar / 20 psi to 100 psi) | 140 kPa to 700 kPa (1.4 bar to 7 bar / 20 psi to 100 psi) | 140 kPa to 700 kPa (1.4 bar to 7 bar / 20 psi to 100 psi) |
Steady-State Air Consumption | ≤0.18 Nm³/h (10.6 scfh) at 140 kPa supply pressure | ≤0.15 Nm³/h (9 scfh) at 140 kPa supply pressure | ≤0.15 Nm³/h (9 scfh) at 140 kPa supply pressure | ≤0.15 Nm³/h (9 scfh) at 140 kPa supply pressure |
Maximum Air Delivery Flowrate | 100 L/min (N) max at 140 kPa for single-acting actuators; 220 L/min (N) max at 400 kPa for double-acting actuators | 110 L/min (N) max at 140 kPa for single-acting actuators; 250 L/min (N) max at 400 kPa for double-acting actuators | 110 L/min (N) max at 140 kPa for single-acting actuators; 250 L/min (N) max at 400 kPa for double-acting actuators | 110 L/min (N) max at 140 kPa for single-acting actuators; 250 L/min (N) max at 400 kPa for double-acting actuators |
Air Connections | 1/4 NPT internal thread (standard); optional Rc1/4 | 1/4 NPT internal thread (standard); optional Rc1/4 | 1/4 NPT internal thread (standard); optional Rc1/4 | 1/4 NPT internal thread (standard); optional Rc1/4 |
Electrical Connections | 1/2 NPT internal thread (standard); optional M20×1.5, G1/2 | 1/2 NPT internal thread (standard); optional M20×1.5, G1/2 | 1/2 NPT internal thread (standard); optional M20×1.5, G1/2 | 1/2 NPT internal thread (standard); optional M20×1.5, G1/2 |
Enclosure Protection Rating | IP66, NEMA Type 4X | IP66 / IP67, NEMA Type 4X | IP66 / IP67, NEMA Type 4X | IP66 / IP67, NEMA Type 4X |
Ambient Temperature Range | Standard: -40 °C to +85 °C; Optional low-temperature: -55 °C to +85 °C | Standard: -40 °C to +85 °C; Optional low-temperature: -55 °C to +85 °C | Standard: -40 °C to +85 °C; Optional low-temperature: -55 °C to +85 °C | Standard: -40 °C to +85 °C; Optional low-temperature: -55 °C to +85 °C |
Ambient Humidity Range | 5% to 95% RH (non-condensing) | 5% to 95% RH (non-condensing) | 5% to 95% RH (non-condensing) | 5% to 95% RH (non-condensing) |
Explosion Protection Rating | Standard: Intrinsic Safety (Ex ia IIC T4/T5/T6 Ga); Optional: Flameproof (Ex d IIC T4/T5/T6 Gb), Non-incendive (Ex nA IIC T4/T5/T6 Gc) | Standard: Intrinsic Safety (Ex ia IIC T4/T5/T6 Ga); Optional: Flameproof (Ex d IIC T4/T5/T6 Gb), Non-incendive (Ex nA IIC T4/T5/T6 Gc) | Standard: Intrinsic Safety (Ex ia IIC T4/T5/T6 Ga); Optional: Flameproof (Ex d IIC T4/T5/T6 Gb), Non-incendive (Ex nA IIC T4/T5/T6 Gc) | Standard: Intrinsic Safety (Ex ia IIC T4/T5/T6 Ga); Optional: Flameproof (Ex d IIC T4/T5/T6 Gb), Non-incendive (Ex nA IIC T4/T5/T6 Gc) |
Core Control & Diagnostic Functions | One-touch auto-calibration, adaptive PID control parameter tuning, basic valve health diagnostics, local LCD operation panel, bidirectional position measurement, selectable fail-safe (open/close) / fail-freeze function, gearless non-contact sensor activation for high shock & vibration immunity | Auto-calibration, adaptive control parameter self-tuning, advanced valve health diagnostics, local backlit LCD operation panel, bidirectional position measurement, selectable fail-safe (open/close) / fail-freeze function, Partial Stroke Test (PST) capability, valve signature analysis, cycle counting, travel histogram, stick-slip detection | Auto-calibration, adaptive control parameter self-tuning, advanced valve health diagnostics, local backlit LCD operation panel, bidirectional position measurement, selectable fail-safe (open/close) / fail-freeze function, PST capability, valve signature analysis, native PROFIBUS PA function block integration | Auto-calibration, adaptive control parameter self-tuning, full-function valve health diagnostics, local backlit LCD operation panel, bidirectional position measurement, selectable fail-safe (open/close) / fail-freeze function, PST capability, valve signature analysis, native FOUNDATION Fieldbus function block integration |
Configuration Tools | Local push-button panel, Rotork FieldTalk™ Software | HART Communicator (Model 375/475), Rotork FieldTalk™ Software | PROFIBUS PA Configuration Tool, Rotork FieldTalk™ Software | FOUNDATION Fieldbus Configuration Tool, Rotork FieldTalk™ Software |
Key Global Approvals & Certifications | CE, ATEX, IECEx, FM, CSA, CCC, CRN | CE, ATEX, IECEx, FM, CSA, CCC, CRN, HART Certified | CE, ATEX, IECEx, FM, CSA, CCC, CRN, PROFIBUS PA Certified | CE, ATEX, IECEx, FM, CSA, CCC, CRN, FOUNDATION Fieldbus Certified |
Typical Applications | General industrial process control, water & wastewater treatment, thermal power plants, standard chemical processes, oil & gas midstream/downstream, food & beverage industry | Large-scale industrial automation systems with HART network, high-end process control requiring valve health monitoring and diagnostics | Integrated process plants with PROFIBUS PA network, high-volume industrial automation, digital plant applications | High-end digital plant applications with FOUNDATION Fieldbus network, precision process control in oil & gas, petrochemical, and power generation industries |
Packaging & Shipping
Packaging: Original box
Esito (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, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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