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Series-285
Series 285 Rotary Smart Positioner, NEMA 4X, HART, LCD, Low Air Use
Series-285
From
$
2,153.50
Product Overview
- Air Connection 1/4 in NPT Female
- Air Consumption 4.0E-4 SCFM
- Air Flow, Max 2.1 SCFM
- Air Supply Pressure, Max 116 psi
- Air Supply Pressure, Min 35 psi
- Conduit Connection 1/2 in NPT female
- Data Interface HART
- Enclosure Ratings IP66, NEMA Type 4X
- Gauge Port Size 1/8 in NPT female
- Hysteresis ± 0.5% FS
- Impedance 460 Ω max @ 20 mA DC
- Input Type mA
- Linearity ± 0.5% FS
- Operating Temperature, Max 185 °F
- Operating Temperature, Min -22 °F
- Pressure Type Gauge
- Repeatability ± 0.3% FS
- Sensitivity ± 0.2% FS
- Stroke 0.5 to 6" or 0 to 90°
Proximity Series 285 Rotary Smart Positioners combine an easy to use, high performance unit with a low price. Series 285 models accurately control the valve stroke of rotary motion valves, such as W.E. Anderson 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 (IP66) enclosure rating protects the highly efficient microprocessing unit inside the Smart Positioner. 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 unit. Low air consumption reduces operating cost but does not sacrifice the performance of the Smart Positioner. The compact design of this unit makes it easy to use with any size actuator. Smart Positioners feature a LCD screen attached to the outer surface of the unit, allowing for an easy inspection of the positioner condition while in the field. Available in user selectable single or double action, with HART® communication as standard. In the event that the 4-20 mA input signal is lost the 285 will fail in place.
Product Applications
- Linear motion valves or rotary motion valves with single or double acting actuators