TRIAC EPR Series Electro-Pneumatic Positioner

The EPR Series positioner converts a 4-20 mA input signal into a proportional pneumatic output, accurately controlling valve positions. Its robust aluminum die-cast body with epoxy coating provides resistance against corrosion, while the vibration-resistant design ensures optimal performance in demanding industrial settings. The positioner features easy maintenance, simple span and zero adjustments, and can be configured for direct or reverse action. Additionally, it supports split-range control without the need for changing parts and includes stainless steel gauges as standard.

Features:

• Input Signal: 4-20 mA DC
• Supply Air Pressure: Maximum 100 psi (7.0 kgf/cm²)
• Air Connections: 1/4" NPT
• Conduit Connection: 1/2" NPT
• Explosion-Proof Classification: Exmd II BT6, Exmd II C(H₂)T6, IP66, Exia II BT6
• Ambient Temperature Range: -4°F to 158°F (-20°C to 70°C)
• Linearity: Within ±1.5% F.S.
• Sensitivity: Within 0.5% F.S.
• Hysteresis: Within 1.0% F.S.
• Repeatability: Within ±0.5% F.S.
• Air Consumption: 0.18 CFM @ 20 psi
• Flow Capacity: 2.83 CFM @ 20 psi
• Material: Aluminum die-cast body with epoxy coating
• Weight: Approximately 6.5 lbs (2.95 kg) with terminal box

Applications:

• Industrial Automation: Precise control of valve actuators in process industries.
• Chemical Processing: Regulation of fluid flow in chemical plants.
• Oil and Gas: Control of valves in pipelines and refineries.
• Water Treatment: Management of valves in water and wastewater treatment facilities.