Foxboro AD202MR Pneumatic Proportional Controller
$177.00
$350.00
Description
Overview
The Foxboro AD202MR is a pneumatic control module designed for proportional regulation within Foxboro I/A Series distributed control systems. It is ideal for environments where pneumatic operation is preferred over electrical signals, including hazardous locations, explosion-risk areas, or remote sites without reliable power.
Operating Principle
The AD202MR employs a force-balance mechanism to provide precise and stable control. It receives a standard pneumatic input signal and generates a proportional output to drive valves or other pneumatic actuators. The design ensures consistent loop performance while eliminating the need for electrical power.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AD202MR |
| Control Type | Pneumatic Proportional (P), optional Integral (PI) |
| Input Signal | 3–15 psi (20.7–103.5 kPa) |
| Output Signal | 3–15 psi (20.7–103.5 kPa) |
| Supply Pressure | 20–60 psi (138–414 kPa) |
| Proportional Band | Adjustable, 20% to 400% |
| Gain Adjustment | Field adjustable |
| Repeatability | ≤ ±0.2% of span |
| Air Consumption | Low continuous bleed design |
| Ambient Temperature | –40°C to +60°C |
| Humidity | 0–95% non-condensing |
| Construction | Industrial-grade aluminum housing |
| Mounting | Rack-mounted (I/A Series compatible) |
Key Characteristics
Fully pneumatic operation removes the need for electrical wiring
Force-balance mechanism ensures stable and accurate control
Wide proportional band allows flexible loop tuning
Seamless integration with Foxboro I/A Series systems
Durable housing withstands harsh industrial environments
Reliable operation in extreme temperature and humidity conditions
Application Scope
The AD202MR is commonly used in:
Hydrocarbon production and refining
Chemical processing and pharmaceutical plants
Thermal and conventional power plants
Water and wastewater treatment facilities
Remote field stations and offshore platforms
FAQ
Q: Does the AD202MR require electrical wiring?
A: No. It operates entirely on pneumatic input and compressed air supply.
Q: Can it integrate with modern DCS systems?
A: Yes. It interfaces directly with Foxboro I/A Series racks and hybrid control loops.
Q: What control action does it support?
A: Proportional control is standard, with optional integral action for enhanced loop stability.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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