Ametek Model 40 Pneumatic Indicating Controller

Model: 40

Model 40 Pneumatic Controllers automatically position a valve or other final control element to maintain process pressure at the desired set point. As receiving controllers, they can control any process variable transmitted as a pneumatic signal.

Standard models have proportional band adjustments for controlling processes where load changes are infrequent and can be corrected by the manual reset feature, standard in every controller. By a simple screwdriver adjustment, the standard proportional controller can be changed to two-position control action with adjustable differential gap.

Model 40 controllers are available with control modes of 100% proportional, 200% proportionally, 200% proportional plus reset and 300% proportional plus reset plus rate (PID) for processes with frequent load changes and 75% proportional (positioner only). They not only satisfy ordinary control requirements, but are equally proficient in controlling processes with unfavourable characteristics.

FEATURES

• Quality, flexibility, accuracy and dependability
• Indication of measured variable
• A non-bleed, high-capacity relay with excellent stability and fast response
• Easy field calibration
• Broad selection of control modes; proportional plus reset, proportional plus reset plus rate, differential gap and two position bypass
• Wide selection of process measuring elements for pressure, differential pressure, flow and level
• Large, easy-to-read black on white dial for maximum resolution
• Case and door with epoxy powdered finish for environmental protection
• Meets EPA NSPS OOOO (Quad-O) for bleed rate less than 6.0 scfh

AMETEK model 40