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A-T Controls Digital Valve Positioner, SER Series

SER Series Digital Valve Positioner

Brand: A-T Controls, Inc
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A-T Controls Digital Valve Positioner, SER Series
Reliable valve control device guaranteeing optimum span and zero settings by smart auto-calibration function.
Features
  • Auto-calibration for Optimum Zero and Span Setting 
  • Simple and Easy to Set 
  • Precise Control Performance and High Dynamic Response 
  • Pressure Regulator Built in to Eliminate Variations in Supply Air Pressure 
  • Low Air Consumption due to Piezo Electric Microvalve 
  • Input / Output Signal Isolated 
  • Automatic Detection for DA: Direct-Acting or RA: Reverse Acting
  • Single and Double Acting Available 
  • No Hunting on the Small Actuators 
  • 1/2 Split Range Available 
  • High Resistance Against Shock and Vibration 

Specifications

Brand

Actuator Type

  • Double-Acting
  • Linear
  • Rotary
  • Spring Return

Adjustment Type

  • Zero & Span Adjustment

Air Consumption

  • 0.05 scfm (0.08 Nm³/hour) at psi: 20.31 to 87.02 (kPa: 140 to 600, bar: 1.4 to 6) Supply

Approvals & Certifications

  • KC Ex d IIB + H₂ T6 IP66
  • NAMUR

Consumption

  • 170 mW at 20 mA - Power Consumption
  • 30.8 mW at 4 mA - Power Consumption

Enclosure, Body Material

  • Aluminum - Die Cast

Environmental Protection

  • Explosion-proof
  • IP66
  • Weatherproof

Flow Capacity

  • 2.8 scfm (4.8 Nm³/hour) at psi: 20.31 (kPa: 140, bar: 1.4) Supply - Air Capacity

Hysteresis

  • 0.5 % of Full Scale
  • Within 0.2 %

Input Impedance

  • 0 to 430 ohms

Input Signal

  • 4-20 mA DC

Linearity

  • ± 1 % of Full Scale
  • Within ± 0.5 %

Media

  • Allowed Gas
  • Dust
  • Free of Water
  • Oil
  • Pressurized Air

Mounting

  • Direct Mounting

NPT Connection

  • 1/2” NPT - Pneumatic Connection
  • 1/4” NPT - Pneumatic Connection

Operating Temperature

  • -30° to 80° C (-22° to 176° F)

Output

  • 2-Wire
  • 4-20 mA

Output Options

  • Pressure Gauge

Power Supply

  • 15-30 Vdc
  • 24 Vdc - Recommended Power Supply

Pressure Range

  • psi: 150 (kPa: 1,000, bar: 10) - Pressure Gauge

Repeatability

  • ± 0.5 % of Full Scale

Rotation

  • 50° to 90°, Max.

Sensitivity

  • Within ± 0.2 %

Supply Pressure

  • psi: 20 to 100 (kPa: 150 to 700, bar: 1.5 to 7) - Air

Supply Voltage

  • 8.5-30 Vdc (42 ohms)

Documentation

Datasheet

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