Foxboro 762CNA-Q Pneumatic Controller – Product Description

Description / Overview

The Foxboro 762CNA-Q is a single-station pneumatic controller engineered for stable and responsive industrial process regulation. It converts a standard pneumatic input into a precise pneumatic output, enabling accurate control of pressure, temperature, level, and flow. Moreover, its robust design supports continuous operation in plants that demand consistent performance across long service cycles. The 762C Series has been widely trusted for decades because it offers reliable mechanical control without requiring complex electronics.

Technical Data / Specifications

• Model: 762CNA-Q

• Series: Foxboro 762C Pneumatic Controllers

• Type: Pneumatic Controller

• Input Signal: 3–15 psi (20–100 kPa) pneumatic

• Output Signal: 3–15 psi (20–100 kPa) pneumatic

• Control Modes: Proportional, Reset (Integral), Derivative, PID

• Proportional Band: Adjustable, 4–400% typical

• Reset (Integral): 0.01–50 min/repeat adjustable

• Derivative: 0.05–50 minutes adjustable

• Accuracy: ±0.25% of span typical

• Response Time: ≤2 seconds

• Mounting Options: Panel, rack, or 2-inch pipe

• Operating Pressure Range: 20–100 kPa (3–15 psi)

• Operating Temperature: –40 °C to +85 °C

• Humidity Range: 5%–95% non-condensing

• Protection Class: NEMA 3 / IP53

• Weight: 4.50 lbs

• Country of Origin: USA

• Application Areas: Oil & gas, chemicals, refining, power generation, pulp & paper, steel mills

FAQ

Q1: What signal range does the 762CNA-Q support?
A1: It uses a standard 3–15 psi pneumatic input and output signal.

Q2: Does this controller offer full PID capability?
A2: Yes, it supports proportional, integral, derivative, and combined PID modes.

Q3: Can the unit handle demanding environments?
A3: Yes, the NEMA 3/IP53 enclosure protects it in industrial conditions.

Q4: What industries typically use this controller?
A4: Oil & gas, chemical processing, refining, power plants, and pulp & paper facilities.

Q5: How fast does the controller respond?
A5: It delivers a response time of two seconds or less.