Foxboro E69F-TI2-JRS is a field-mounted, explosion-proof current-to-pneumatic signal converter.Its core function is to linearly convert standard industrial DC current signals (such as 4–20 mA) into standard pneumatic pressure signals (20–100 kPa / 3–15 psi), for use between electrical control systems and pneumatic actuators (e.g., pneumatic control valves, positioners).As a high-protection version in the E69F series, this model features an explosion-proof enclosure, explosion-proof terminal box, and adjustable filter pressure regulator.It has a compact structure and strong environmental adaptability, and is widely used in hazardous and general industrial sites including petroleum, chemical, power, and natural gas applications.

Model Code Breakdown (E69F-TI2-JRS)

• E69F: Series designation, basic series for field-mounted current-to-pneumatic converters
• -T: Threaded cover enclosure, explosion-proof (Ex), protection rating IP65 / NEMA 4
• -I: DC current input, supports 4–20 / 4–12 / 12–20 mA DC, input impedance 170 Ω
• -2: Pneumatic output signal 20–100 kPa (3–15 psi / 0.2–1.0 bar)
• -J: Integral explosionproof junction box
• -R: Built-in adjustable filter pressure regulator (without pressure gauge)
• -S: Supplied with supply / output pressure gauges (matched to range)

Core Technical Parameters

1. Signal Parameters

• Input signal: 4–20 mA DC (standard); optional 4–12 / 12–20 mA; input impedance 170 Ω; supports direct / reverse action switching
• Output signal: 20–100 kPa (3–15 psi / 0.2–1.0 bar); stability ±0.5% span / 24h
• Response time: ≤ 0.5 seconds (10% → 90% span)

2. Accuracy & Performance

• Overall accuracy: ±1.0% span (under standard operating conditions)
• Linearity: ±0.5% span (typical)
• Repeatability: ±0.25% span (typical)
• Hysteresis: ±0.5% span (typical)
• Dead band: 0.1% span

3. Environmental & Physical

• Operating temperature: 0°C ~ 60°C (32°F ~ 140°F)
• Protection rating: IP65, NEMA 4; explosion-proof certified for hazardous areas
• Material: Die-cast low-copper aluminum alloy enclosure, epoxy powder coating
• Weight: approx. 2.3 kg; shipping weight 3.5 kg

4. Pneumatic & Electrical

• Supply air pressure: 140–700 kPa (20–100 psi)
• Electrical connection: Explosionproof junction box, suitable for hazardous area wiring

• Mounting: Wall, valve bracket, or DN50 pipe mounting

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E69F Series Models (with configuration differences)

• E69F-TI2-JR: Explosion-proof enclosure + 4–20 mA input + 20–100 kPa output + explosionproof junction box + filter regulator (no gauge)
• E69F-TI2-JRS: Base version + supply/output pressure gauges (this model)
• E69F-TI2-RS: Explosion-proof enclosure + 4–20 mA input + 20–100 kPa output + filter regulator + pressure gauges (without J junction box)
• E69F-TI8-S: Explosion-proof enclosure + 4–20 mA input + 40–200 kPa (6–30 psi) output + pressure gauges
• E69F-BI2: General-purpose enclosure (non-explosion-proof) + 4–20 mA input + 20–100 kPa output (basic version)
• E69F-BI2-S: General-purpose enclosure + 4–20 mA input + 20–100 kPa output + pressure gauges
• E69F-BI2-M: General-purpose enclosure + 4–20 mA input + 20–100 kPa output + manual adjustment
• E69F-TI3: Explosion-proof enclosure + 4–20 mA input + 7–125 kPa (1–18 psi) output
• E69F-BH2: General-purpose enclosure + 10–50 mA input + 20–100 kPa output (high current input)
• E69F-TI2-J: Explosion-proof enclosure + 4–20 mA input + 20–100 kPa output + explosionproof junction box (without R/S)