• Sophisticated pneumatic controller
• Range of control options
• Direct or reverse acting
• Optional Auto/Manual unit available

A selection of temperature, pressure and humidity pneumatic indicating controllers are offered in 2 main versions. The Clearway M140 is a sophisticated pneumatic controller with robust mechanical sensing systems for temperature, pressure and humidity. The M140 is available with up to 2 term control, namely:

• on/off
• proportional (differential gap) (P)
• proportional + integral (P + I)
• proportional + derivative (P + D)

The controller operates on the motion principle, i.e. the motion from the pneumatic feedback unit balances the motion from the process variable measuring element.