PRECISOR® III Electro-Pneumatic Positioner
Welcome to purchase discount source precisor® iii electro-pneumatic positioner from our company, which is one of the best China precisor® iii electro-pneumatic positioner manufacturers and suppliers.Series 275 PRECISOR® III Electro-Pneumatic PositionerLow Cost, Rotary OperationProximity Series 275 PRECISOR® III Electro-Pneumatic Positioners combine an easy to use, high performance unit with a low price. Series 275 models accurately control valve stroke of rotary motion valves such as Dwyer Instruments ball or butterfly valves according to an input signal of 4 to 20 mA from the controller. Its rugged, durable design makes it ideal for harsh environments. The NEMA 4X (IP 66) enclosure rating protects the highly efficient microprocessing unit. An analog feedback signal is outputted to stabilize any valve system, and easy to use functions such as auto calibration ensure the accuracy of the Series 275. Low air consumption reduces operating cost, but does not sacrifice the performance of the positioner. The compact design of this unit makes it easy to use with any size actuator. PRECISOR® III Positioners feature user selectable single or double action and LCD screen attached to the outer face of the unit, allowing for an easy inspection of the positioner condition while in the field.SpecificationsInput Signal:4-20 mA DC.Input Impedance:460 Ohm max @ 20 mA DC.Enclosure Material:Aluminum diecasting.Air Supply:20 to 100 psi (1.4 to 6.9 bar).Air Connection:1/4" NPT.Gage Connection:1/8" NPT.Conduit Connection:1/2" NPT.Linearity:±0.5% of full scale.Hysteresis:±0.5% of full scale.Sensitivity:±0.2% of full scale.Repeatability:±0.3% of full scale.Air Consumption:Below 0.07 scfm (2 LPM) at 20 psig (1.4 bar) supply.Flow Capacity:2.5 scfm (70 LPM) at 20 psig (1.4 bar) supply.Stroke:0 to 90°.Enclosure Rating:IP66.Temperature Limits:-22 to 185°F (-30 to 85°C).Lever:NAMUR.Weight:3.3 lb (1.5 kg).Features• Integral LCD for monitoring or programming• Mounting bracket is included• Adjustable for various characteristics - quick open or linear valves• User selectable single or double action
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