Proximity Positioners

Proximity Positioners

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Series 165/265 Precisor® II Pneumatic and Electro-pneumatic Positioners

Series 275 Precisor® III Electro-pneumatic Positioners

Series 185/285 Smart Positioners

Series 195/295 Compact Positioners

Product List

Series 165/265Precisor® II P/EP Positioner

165/265 SpecificationsInput Signal: Pneumatic: 3 to 15 psig

Electro-pneumatic: 4 to 20 mA.Air Supply: 20 to 100 psig (1.4 to 6.9 bar).Conduit Connection: 1/2˝ NPTAir Consumption: 0.10 scfm (3 LPM) at 20 psig (1.4 bar) supply.Flow Capacity: 28 scfm (80 LPM) at 20 psig (1.4 bar) supply.Stroke: 0.5 to 6 in (165); 0 to 90º degrees (265)Operating Temperature: Aluminum: -4 to 158°F

316 SS: -40 to 158°F.

165/265 FeaturesReduces valve hysteresisEasy to adjust zero and span Field selectable cam for direct or reverse actingLow air consumption which reduces operation cost.Increases valve shut-off pressureIncludes hardware to mount positioner to pneumatic actuators with NUMAR mounting configuration.

Series 275PRECISOR® III Electro-Pneumatic Positioner

SpecificationsInput Signal: 4 to 20 mA DC.Enclosure: Aluminum Air Supply: 20 to 100 psi (1.4 to 6.9 bar).Enclosure Rating: NEMA 4X (IP66).Ambient Temperature: Operating: -40 to 185°F

(-40 to 85°C).Stroke: 0 to 90° degrees (295)Mounting: NAMUR

FeaturesIntegral LCD for monitoring or programming.Mounting bracket is included for NAMUR actuatorsSelectable valve characteristics (Linear, Quick Open, Equal Percentage). User selectable single or double action for spring return or double acting actuators. HART® communication available for configuring parameters or monitoring valve position. The positioner has the ability to let the operator manual cycle the valve.

Series 185/285Linear and Rotary Smart Positioner

SpecificationsInput Signal: 4 to 20 mA DC.Enclosure: Aluminum or SS.Air Supply: 35 to 116 psi (2.4 to 9 bar).Flow Capacity: 2.1 scfm (60 LPM) at 20 psig (1.4 bar) supply.Stroke: 0.5 to 6” (185); 0 to 90° degrees (285).Enclosure Rating: NEMA 4X (IP66).Temperature: Operating: -22 to 185°F (-30 to 85°C).285 Mounting: NAMUR

FeaturesLCD allows the user to directly check the positioner in the field.Programmable split ranges such as 4 to 12mA and 12 to 20mAOperates normally regardless of changes in supply pressure during operationLow air consumption reduces operating cost. HART® communication available for configuring parameters or monitoring valve position. PID Parameters can easily be adjusted without additional communicator.

Series 195/295Compact Linear and Rotary Smart Positioner

SpecificationsInput Signal: 4 to 20 mA DC.Air Supply: 35 to 116 psi (2.4 to 8 bar).Flow Capacity: .32 scfm (9 LPM) at 20 psi (1.4 bar) supply.Enclosure Rating: NEMA4X (IP66).Temperature: Operating: -22 to 185°F (-30 to 85°C).Stroke: .39 to 1.57” (195); 0 to 90° degrees (295).295 Mounting: NAMUR

FeaturesLCD allows user to directly check the positioner condition in the field.Operates normally regardless of changes in supply pressure during operation.Selectable valve characteristics (Linear, Quick Open, Equal Percentage). Analog feedback signal (4 to 20mA). PID parameters can easily be adjusted in the field without additional communicator.An air filter regulator can be attached directly to the positioner with a single fitting without additional piping.

Positioner Applications

Pressure Control DamperA pressure control damper will regulate air volume through ducts based on the demands from a building management system. A positioner is used in conjunction with a pneumatic actuator to modulate the damper blades.

Linear Valve Electro-pneumatic positioners are used to

cycle a linear valve base on a 4 to 20mA input single. A positioner is used to reduce valve hysteresis and to increase process pressure shut-off rating

Rotary Valve Flow Control

Electro-Pneumatic positioners are used for flow control on quarter turn ball valves. A 4 to 20mA signal to the positioner will modulate the valve to maintain a desired flow rate

Control and Feedback

The Proximity series 285 Smart Positioner offers 4 to 20mA position feedback allowing an operator to monitor the position of their valves from a central location.

Questions