ESR Series Smart Valve Positioner features:

• Auto-Calibration for optimum valve conditions
• Precise control performance and high dynamic response
• Easy operation with four-key pads and full text graphical LCD
• Single and double acting
• Low air consumption due to piezo electric microvalve
• Pressure regulator built-in to eliminate variations in supply air pressure
• Problem-free characteristics on a very small actuator
• High resistance against shock and vibration
• Mounting on rotary actuators according to VDI / VDE 3845

ESR Series Smart Valve Postioner Options:

• Position transmitter (4…20mA output signal)
• Two alarm limits (Min., Max)
• Gauge block with two stainless steel pressure gauges
• Explosion proof type (Exd IIB T6, Exia IIB T6)
• HART communication (FSK)

ESR Series Smart Valve Positioner Documentation >

Specifications

• Input signal: 4~20mA DC
• Voltage drop: 8.5V DC @ 20mA (425&Mac189;)
• Min. / Max. current: 3.6mA / 50mA
• Air supply pressure: 1.4…7.0bar (20…100psi)
• Media characteristic: Filtered compressed dry and non-oiled air
• Output pressure: 0…100% supply air pressure / single or double action
• Shut-off value: Range 0…5% of position signal
• Air consumption: 0.08ß©/h at 1.4bar (20psi) supply
• Humidity limits: <90% RH, non-condensing
• Angle: 40…90° (max. up to 100°)
• Adjustable speed: 1…200 (lowest 1, highest 200)
• LCD indication: 4-digit LCD indicator
• Scan time: 2ß¡
• Valve action: Position 0…100% / direct action (DA) / reverse action (RA)
• Characteristic curve: Linear, E.Q. percentage 1:25 or 1:50 Linearity <=0.3% / sensitivity <=0.2% / hysteresis <=0.2%
• Temperature limits: Operation: -20…+70C
• Protection class: IP66, intrinsic safety (Exia), Flameproof (Exd)
• Case material: Aluminum diecast
• Pneumatic connections: 1/4 NPT
• Electrical connections: 1/2 NPT
• Weight: 5.1 Lbs (with pressure gauge block)