Smart Valve Positioner

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MS820 series

01 Description

MS820 Smart Valve Positioner control valve stroke in response to input signal of 4-20mA from control panel, DCS, or calibrator.

02 Features

  • LCD and 4 button local control
  • Quick and easy calibration
  • PST and alarm function
  • Auto/Manual switch included
  • Modularization of the internal parts
  • IP66 / NEMA4X
  • Improvement of valve control speed by applying large flow pilot valve
  • Strong vibration resistance and impact resistance

03 Specifications

MODEL MS820L MS820R
Input signal4~20mA DC
Impedance500Ω (20mA DC)
Supply pressure0.14~0.7MPa
Stroke10~150mm0~90º
Air connectionPT1/4, NPT1/4
Gauge connectionPT1/8, NPT1/8
ConduitG(PF)1/2, NPT1/2
Explosion proof typeEX ia IIC T5/T6
EnclosureIP66
Ambient Temp.Acting Temp.-30℃~85℃(Standard type), -40℃ ~ 85℃(Low temp type)
Explosion Temp.-40℃~60℃(T5) / -40℃~40℃(T6)
Linearity±0.5% F.S.
Sensitivity±0.2% F.S.
Hysteresis±0.5% F.S.
Repeatability±0.3% F.S.
Air consumptionBelow 2.3LPM (Sup.=0.14MPa)
Flow capacityOver 100LPM (Sup.=0.14Mpa)
MaterialAluminum die cast
Weight2.2kg