SS3 Explosion-Proof Digital Smart Valve Positioner

Brand: A-T Controls, Inc.
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SS3 Linear / Rotary Smart Valve Positioner Sturdy explosion proof housing and smart performance with innovative and ever-strong coil drive even under harsh working environments.
Features
  • Flameproof IECEx / ATEX / KC Ex d IIC T6
  • 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 Apecial Adjustments
  • Compact Design Allowing to be Installed on Small Actuators
  • Providing 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° to 75° C (-22° F to 167° F)]
  • Improved Control of High-friction Globe and Ball Valves by Eliminating Overshoot and Hunting
  • Low Air Consumption
  • Providing a Mounting Bracket to Meet IEC 60534-6-1 for Linear Valves
  • Supporting a NAMUR Mounting Pattern IEC 60534-6-2 (VDI/VDE 3845) and Providing a Multi-size Mounting Bracket for Rotary Valves
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main_AT_SS3_Explosion_Proof_Digital_Smart_Valve_Positioner.png
Images are representations only.
SS3 Linear / Rotary Smart Valve Positioner Sturdy explosion proof housing and smart performance with innovative and ever-strong coil drive even under harsh working environments.
Features
  • Flameproof IECEx / ATEX / KC Ex d IIC T6
  • 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 Apecial Adjustments
  • Compact Design Allowing to be Installed on Small Actuators
  • Providing 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° to 75° C (-22° F to 167° F)]
  • Improved Control of High-friction Globe and Ball Valves by Eliminating Overshoot and Hunting
  • Low Air Consumption
  • Providing a Mounting Bracket to Meet IEC 60534-6-1 for Linear Valves
  • Supporting a NAMUR Mounting Pattern IEC 60534-6-2 (VDI/VDE 3845) and Providing a Multi-size Mounting Bracket for Rotary Valves
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SS3

Actuator Operation

Protection Class

Feedback Lever

Feedback Lever

Pressure Gauge

By-pass

Position Feedback

Communication

Connection Threads

Mounting Bracket

Feedback Pin Guide Lever Set

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SS3

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Specifications

Brand

Actuator Type

  • Direct-Acting - Valve
  • Double-Acting
  • Reveres Action - Valve Action
  • Spring Return

Air Consumption

  • 0.1 scfm (0.17 Nm³/hour) (2.8 L/minute) at psig: 20 to 90 (kPa: 137.9 to 620.5, bar: 1.379 to 6.205) - Supply Pressure

Air Flow Capacity

  • 2.8 scfm (4.8 Nm³/hour) (80 L/minute) at psig: 20 (kPa: 137.9, bar: 1.379) Supply Pressure
  • 8.2 scfm (14 Nm³/hour) (233 L/minute) at psig: 20 (kPa: 137.9, bar: 1.379) 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 Eex D IIC T6
  • Ex
  • IEC 60534-6-1, 60534-6-2
  • IEC Ex D IIC T6
  • ISO 8573-1
  • KC Ex D IIC T6

Communication

  • FOUNDATION Fieldbus
  • HART Communication Polling Address (0 to 15)
  • Profibus

Current

  • 3.6 mA Minimum
  • 30 mA DC - Output Current Limit for Position Transmitter
  • 50 mA - Maximum

Deadband

  • 0 to 9.99%

Display

  • 4-Digit LCD

Electrical Connectors

  • 1/2" NPT : Connection Threads (Pneumatic - Electrical)
  • 1/4" NPT : Connection Threads (Pneumatic - Electrical)
  • G 1/2" : Connection Threads (Pneumatic - Electrical)
  • M20 x 1.5 : Connection Threads (Pneumatic - Electrical)
  • 1/4" BSPT : Connection Threads (Pneumatic - Electrical)

Electrical Rating

  • 10.1 A at 250 Vac - Micro Switches

Enclosure Finish

  • Powder Paint Coated

Enclosure, Body Material

  • Aluminum Die Cast

Environmental Protection

  • Flameproof
  • 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

Mounting

  • Fork Lever
  • NAMUR

Operating Temperature

  • -30° to 75° C (-22° to 167° F)
  • -30° to 80° C (-22° to 176° F) - Position Transmitter

Output

  • 4-20 mA, 2-Wire - Position Transmitter

Output Pressure

  • 0 to 100% of Supply Air Pressure

Power Supply

  • 12-30 Vdc - Position Transmitter

Pressure Range

  • psi: 150 (kPa: 1,000, bar: 10) - for Guage Block
  • psi: 90 (kPa: 620.5, bar: 6.205) - for Gauge Block

Pressure Type

  • Gauge

Range

  • 0 to 10% of Position Signal - Shut-Off Value

Repeatability

  • < 0.2% of Full Scale

Rotation

  • 25 to 120° - Rotary Typical : Angle

Scan Time

  • 2 milliseconds

Sensitivity

  • < 0.2% of Full Scale

Span & Zero Adjustments

  • 0 to 100% - Span Adjustment
  • 0 to 99% - Zero Adjustment

Switch Type

  • Micro Switch
  • SPDT

Voltage Drop

  • 8.7 Vdc (435 ohms at 20 mA) - without HART
  • 9.4 Vdc (470 ohms at 20 mA) - with HART
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