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CHX900 Intelligent Electrical Valve Positioner | Suitable for Pneumatic Control Valve Systems

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CHX900 Intelligent Electrical Valve Positioner | Suitable for Pneumatic Control Valve Systems

CHX900 Intelligent Electrical Valve Positioner
Suitable for Pneumatic Control Valve Systemsw
Product Summary

The CHX900 intelligent valve positioner is a dual line instrument based on piezoelectric valve technology. It receives 4-20mA current control signals and accurately controls valve opening through the processing of a built-in high-performance microprocessor. The device adopts fuzzy PID optimal control internally and supports 4-20mA valve opening transmission function.

Key Features
  • Quick and easy self-setting capability
  • IP66 protection level for harsh environments
  • Built-in filter element at air source input for clean air supply and piezoelectric valve protection
  • External exhaust design prevents air source from entering the body interior, protecting circuit boards from corrosion
  • Near-zero gas consumption in standby mode for effective energy savings
Technical Parameters
ParameterSpecification
ModelCHX900
Working Temperature-30°C to 80°C
Explosion Proof TypeStandard type, Intrinsic safety type
Input SignalDC 4-20mA
Travel Range10-200mm or 0-120°
Gas Source Pressure0-0.6 MPa (oil-free, moisture-free, dust and dirt-free)
ImpedanceLess than 450 ohms
Gas Source InterfaceNPT1/4
Electrical InterfacesNPT1/2, G1/2
Output CharacteristicsLinear, Equal percentage (1:25, 1:50 or 25:1, 50:1), Custom
Linearity± 0.5% F.S
Repeatability± 0.4% F.S
Sensitivity± 0.5% F.S
MaterialDie-cast aluminum
Protection LevelIP66
Weight1.8 kg
Dimensions218 × 105 × 118 mm (Length × Width × Height)
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