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Smart positioner | Hart® communication | single acting | aluminum enclosure
Series 285 Rotary Smart Positioner
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
- User selectable single or double action
- LCD display
- Series
- 285 Rotary Smart Positioner
- freeship
- Category/Type
- Valves
- Type
- Positioners
- Series
- 285 Rotary Smart Positioner
- Input Signal
- 4 to 20 mA DC.
- Input Impedance
- 460 Ω max @ 20 mA DC.
- Enclosure Material
- Aluminum or 316SS.
- Air Supply
- 35 to 116 psi (2.4 to 9 bar).
- Air Connection
- 1/4″ NPT.
- Gage Connection
- 1/8″ NPT.
- Conduit Connection
- 1/2″ NPT.
- Linearity
- ±0.5% FS.
- Hysteresis
- ±0.5% FS.
- Sensitivity
- ±0.2% FS.
- Repeatability
- ±0.3% FS.
- Air Consumption
- .0004 scfm (.01LPM) at 20 psig (1.4 bar) supply.
- Flow Capacity
- 2.1 scfm (60 LPM) at 20 psig (1.4 bar) supply.
- Stroke
- 0 to 90°.
- Enclosure Rating
- NEMA 4X (IP66).
- Operating Temperature
- -22 to 185°F (-30 to 85°C).
- Weight
- 3.3 lb (1.5 kg); SS models: 6.4 lb (2.9 kg).
Resources
^^Smart positioner, Hart® communication, single acting, aluminum enclosure^^
Prompt Shipping and Professional Packing
We can offer a variety of shipping options because of our long-term relationship with UPS FedEx DHL. Our warehouse staff will package every item to our exacting specifications. Your items are carefully inspected and secured properly prior to shipping. Everyday we deliver hundreds of packages to our customers from all over the world. This is a sign of our commitment to be the largest online retailer worldwide. Both Europe and the USA have distribution and warehouse centres.
It is important to note that orders with multiple items are processed according to the specific item.
Prior to shipment, we inspect the ordered items thoroughly. The majority of orders are shipped within 48 hrs. The estimated delivery time is between 3 and 7 days.
Returns
We do not control the inventory in our factory and warehouse. The levels of stock can change at any time. It's possible that the stock may run out after your order has been processed.
The period of time is 30 days. We are unable to return or exchange your purchase if it has been 30 days since the purchase.
In order to be eligible for a refund, your item must be unused and in the same state as when you received it in. It must also be in the original packaging.
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