Foxboro Eckardt - PC191-101 - Pneumatic Min-Selector Relay, Dual Input, 0.2–1 ba

The Foxboro Eckardt PC191-101 is a pneumatic computing relay designed to select the lower of two input pressure signals, ensuring precise control in process automation systems. This min-selector relay is ideal for applications requiring signal monitoring, selection, and adaptation, particularly in safety-critical environments. 

Key Features:

• Model: PC191-101

• Brand: Foxboro Eckardt

• Function: Min-selector relay for two input pressures

• Input Pressure Range: 0.2 to 1 bar (3 to 15 psi)

• Output Pressure Range: 0.2 to 1 bar (3 to 15 psi)

• Supply Air Pressure: 1.4 ± 0.1 bar (20 ± 1.4 psi)

• Air Consumption: Approximately 10 l/h

• Air Delivery Capacity: Up to 3,000 l/h at Δp = 1 bar

• Air Exhaust Capacity: Up to 1,800 l/h

• Minimum Pressure Difference Between Inputs: ±4 mbar

• Mounting: Wall-mounted with vertical orientation

• Pneumatic Connections: 1/8” NPT internal threads

• Materials of Construction: Aluminum housing; internal components include brass, steel, polyamide, neoprene, silicone, and PTFE

• Protection Class: IP53

• Ambient Temperature Range: –25 °C to +70 °C

• Storage Temperature Range: –30 °C to +70 °C

• Weight: Approximately 0.3 kg

• Applications: Suitable for signal monitoring, selection, and adaptation in process control systems, ensuring reliable operation in various industrial environments.