FOXBORO 43AP Pneumatic Indicator Controller

WIDE SELECTION OF MEASURING ELEMENTS

Invensys Foxboro offers the widest variety of element constructions and ranges in the industry. This versatility enables the 43AP Series Pneumatic Indicating Controllers to be applied to virtually any process.

WIDE CHOICE OF CONTROL MODES

On-off, proportional, proportional plus derivative, proportional plus integral (reset), proportional plus integral plus derivative, differential gap, and automatic shutdown actions are available.

BROAD RANGE OF INTEGRAL (RESET) AND DERIVATIVE ADJUSTMENTS

The integral unit has the complete range from 0.01to 50 minutes, and the derivative unit from 0.05 to 50 minutes.

VARIETY OF OPTIONS

These controllers are available with an extensive list of optional features. Among these are internal bumpless automatic-manual transfer stations (two types), “batch” function, remote pneumatic set point, Type 70 electric contacts, and control valve mounting.

ACCURACY UNAFFECTED BY MOUNTING STRESSES

Both the control unit and the measurement element are mounted on a rigid steel plate. Thus, these components are isolated from case stresses due to mounting, and dependable accuracy is ensured.

POWER FAILURES DO NOT INFLUENCE PROCESS-DRIVEN INDICATION

A power failure and the likely subsequent loss of supply pressure do not influence the process-driven indication.

WEATHERPROOF CONSTRUCTION

A glass fiber reinforced case and a gasketed door with a shatterproof polycarbonate window meet IEC IP53 and provide the environmental protection of NEMA® Type 3.

VERSATILE MOUNTING

Instruments may be mounted in a panel, on a flat surface, on a INTERNAL BUMPLESS AUTOMATIC-MANUAL TRANSFER STATION

This option provides bumpless-balanceable transfer between automatic and manual control by simple 2step procedure. Accidental transfer is avoided because the door must be opened to gain access to the transfer station.