Description
The Foxboro 43AP-FA42D/PB-AA is a rugged, reliable pneumatic indicating controller engineered for accurate measurement and local control of process variables such as pressure, temperature, flow, and liquid level in industrial environments. Utilizing pneumatic signals rather than electricity, this controller is intrinsically safe and ideal for hazardous locations where electrical power is unavailable or restricted. It provides precise process regulation, ensuring stable and dependable performance in chemical plants, refineries, and oil and gas facilities.
43AP-FA42D/PB-AA
| Parameter Name | Specification Value |
| Brand | Foxboro |
| Model | 43AP-FA42D/PB-AA |
| Series | 43AP Series |
| Product Name | Pneumatic Indicating Controller |
| Origin / Country of Manufacture | United States |
| Condition Status | Brand New / Factory Sealed |
| Physical Dimensions | Standard Case Form Factor (approx. 23 cm x 23 cm x 10 cm) |
| Weight | Approx. 4.5 kg (9.9 lbs) |
| Country of Origin | USA |
| Power Consumption | Pneumatic Powered (Supply Air Pressure: 20 psi / 140 kPa nominal) |
► What is the primary function of the 43AP-FA42D/PB-AA controller?
The unit measures a process variable, indicates its value on a local dial, and compares it to a set point to pneumatically control final control elements like valves.
► Why use a pneumatic controller instead of an electronic one?
Pneumatic controllers are inherently explosion-proof and ideal for hazardous areas where electrical sources pose ignition risks or are inaccessible.
► What types of control modes can this instrument support?
It is available in various configurations supporting on-off, proportional control, proportional-plus-reset, and derivative control modes.
► What supply air pressure is required for operation?
The controller typically operates on a standard instrument air supply of 20 psi (140 kPa) for optimal signal transmission and mechanical response.
► How is the set point adjusted on this controller?
The set point can be adjusted manually via an external front adjustment knob or configured for remote pneumatic set point tracking.
★ Foxboro 43AP-FA10 – Pneumatic Indicating Controller
★ Foxboro 43AP-VA42A – Pneumatic Indicating Controller
★ Foxboro 13A – Pneumatic Differential Pressure Transmitter
★ Foxboro 13DM – Pneumatic Liquid Level Transmitter
★ Foxboro 12A – Pneumatic Derivative Unit
★ Foxboro E13DM – Electronic Differential Pressure Transmitter
★ Foxboro IMT25 – Magnetic Flowmeter Transmitter
★ Foxboro FBM201 – Fieldbus Module
★ Foxboro FBM214 – Analog Input Module
★ Foxboro FBM242 – Digital Output Module
