Bray Electro-Pneumatic Positioner (Series 6A)

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Bray Electro-Pneumatic Positioner (Series 6A)

Bray International Electro-Pneumatic Positioners are designed with ease of installation, simple calibration, efficiency and economy in mind. Units for rotary single acting and double acting actuators are offered as standard. Intrinsically safe versions are also available.

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Description

Bray International Electro-Pneumatic Positioner (Series 6A) features:

  • Online Adaptive Control: During operation, the unit continually optimizes control behaviors and travel times in response to changes in line media pressure.
  • Diagnostics:  Every electro-pneumatic positioner features corrective and preventative maintenance self-diagnostic checks. All diagnostics run constantly, may be continually monitored, and recorded.
  • Air Supply Monitor: An additional feature of the Series 6A is an internal monitor that transmits a fault signal alarm if the air supply fails. The alarm is shown locally on the LCD and may be sent to the remote control panel.
  • Local Position Adjustment: Valve position can be manually adjusted locally by removing the housing cover, then using the push buttons to override the remote command signal.
  • Flow Restrictors: Precise control of even the smallest pneumatic actuators through internal flow restrictors.
  • Position Indicators: In addition to the LCD display, valve position is clearly shown over a distance by a yellow indicator.
  • Locking Device: For high vibration applications, the Series 6A features, as standard, a friction clutch locking device.
  • Auto Calibration: Calibration is easily performed by entering only three parameters into keypad push buttons. The less than 5 minute calibration process automatically determines the position of the travel limit stops, then measures and records the parameters for both the open and close positions.
  • Explosion Proof Housing: Designed for hazardous and severe applications, Series 6A explosion proof positioners offer all the features of the waterproof units in a flame-proof enclosure.