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SS2, RSS2 & SS2S Smart Valve Positioner
Brand: A-T Controls, IncSmart performance with innovative and ever-strong coil drive even under harsh weather environments.
Features- Easy And Quick Auto-calibration
- Detecting RA - Reverse Acting or DA - Direct Acting Automatically Regardless of Wrong Air Connections
- Available to Use for Single or Double Acting Without Any Special Adjustments
- Compact Design Allowing to be Installed on Small Actuators
- Provide Error Messages Against Performance Failures
- Possible to Test the Actuator with Any Fixed Signal Under a Test Mode
- Programmable Characteristic Curve with 17 Points
- Wide Operating Temperature Range -30 ~ +80° C
- Improved Control of High-friction Globe and Ball Valves by Eliminating Overshoot and Hunting
- Low Air Consumption
- Mounting Bracket to Meet IEC 60534-6-1 for Linear Valves
- Support a NAMUR Mounting Pattern VDI/VDE 3845 / IEC 60534-6-2 and Providing a Multi-size Mounting Bracket for Rotary Valves
Specifications
Brand
Actuator Type
- Linear (Direct-Acting, Reverse Acting)
- Rotary (Spring Return, Double-Acting)
Air Consumption
- 0.07 scfm (14 Nm³/hour) (2 L/minute) at psig: 20 to 90 (kPa: 137.9 to 620.5, bar: 1.37 to 6.20) Supply Pressure
Air Flow Capacity
- 2.8 scfm (4.8 Nm³/hour) (80 L/minute) at psig: 20 (kPa: 138, bar: 1.38) Supply Pressure
- 8.2 scfm (14 Nm³/hour) (233 L/minute) at psig: 20 (kPa: 138, bar: 1.38) Supply Pressure
Air Supply
- psi: 20 to 100 (kPa: 140 to 700, bar: 1.4 to 7), Filtered, Compressed Dry & Non-Oiled to Meet Class 3 of ISO 8573-1
Alarm
- High/Low
Ambient Temperature Range
- -30° to 85° C (-22° to 185° F) - Micro Switches
Approvals & Certifications
- ATEX Intrinsically Safe: Ex ia IIC T5
- CE
- IEC 60534-6-1, 60534-6-2
- IEC Ex Intrinsically Safe: Ex ia IIC T5
- ISO 8573-1
- KC Intrinsically Safe: Ex ia IIC T5
BSP Connection
- 1/4” BSPT Female - Pneumatic Connection for 1/4” BSPT
Cable Length
- 9.8 to 49.2 (3 to 15 metres) - RSS2
Communication
- FOUNDATION Fieldbus
- HART
- PROFIBUS
Current
- 3.6 mA Min.
- 30 mA DC - Output Current Limit of Position Transmitter
- 50 mA - Max.
Deadband
- 0 to 9.99 %
Display
- 4-Digit LCD
Electrical Connectors
- 1/2” NPT
- G 1/2”
- M20 x 1.5
Electrical Rating
- 10.1 A at 250 Vac - Micro Switches
Enclosure Finish
- Powder Paint Coated
Enclosure, Body Material
- 316 Stainless Steel - SS2S
- Aluminum Die Cast
Environmental Protection
- Weatherproof to IP66
Hysteresis
- < 0.2 % of Full Scale
Input Signal
- 4-20 mA at 24 Vdc
Linearity
- < ± 0.3 % of Full Scale
- ± 0.5 % of Full Scale - Position Transmitter
Linearization
- User Set (17-Points) - Performance Characteristic
Mounting
- Fork Lever - for Rotary Typical
- NAMUR VDI/VDE 3845 (IEC 60534-6-2) - Rotary Typical
NPT Connection
- 1/4” NPT Female - Pneumatic Connection
Operating Temperature
- -30° to 80° C (-22° to 176° F)
Output
- 20-4 mA
- 4-20 mA, 2-Wire - Position Transmitter
Output Pressure
- 0 to 100 % of Supply Air Pressure psi: 20 to 100 (kPa: 140 to 700, bar: 1.4 to 7)
Power Supply
- 12-30 Vdc - Position Transmitter
Pressure Range
- psi: 150 (kPa: 1,000, bar: 10) - Gauge Block
- psi: 90 (kPa: 620.5, bar: 6.205) - Gauge Block
Pressure Type
- Gauge
Range
- 0 to 10 % of Position Signal - Shut-Off Value
Repeatability
- < 0.2 % of Full Scale
Scan Time
- 2 milliseconds
Sensitivity
- < 0.2 % of Full Scale
Span & Zero Adjustments
- 0 to 100 % - Span Adjustment
- 0 to 99 % - Zero Adjustment
Switch Quantity
- 2 Switches
Switch Type
- Microswitch (SPDT)
Voltage Drop
- 8.7 Vdc (435 ohms at 20 mA) - without HART
- 9.4 Vdc (470 ohms at 20 mA) - with HART