The Foxboro 135B is a pneumatic auxiliary station designed for auto/manual switching and bias control in industrial process systems.

Key Features

• Model: 135B
• Type: Pneumatic Indicating Control Station
• Functionality: Provides auto/manual switching with bias adjustment for process control loops
• Input Signal: 3–15 psi pneumatic
• Output Signal: 3–15 psi pneumatic
• Mounting: Flush panel mount, compatible with Foxboro 101 or 102 series pneumatic shelves
• Display: Analog scale with pointer for easy visual monitoring