Description
Foxboro E69F‑TI2‑JRS‑ Field‑Mounted Current‑to‑Pneumatic (I/P) Signal Converter
2. Product Overview
The E69F‑TI2‑JRS is a field‑mounted current‑to‑pneumatic converter manufactured by Foxboro, translating standard 4‑20 mA DC electronic control signals into proportional pneumatic output pressure for valve actuators and pneumatic field instruments. This unit features an explosion‑proof threaded housing, integral junction box, built‑in filter regulator plus supply and output pressure gauges for local visual reading. E69F‑TI2‑JRS resists plant‑floor shock, vibration and atmospheric interference, delivering stable conversion accuracy even in hazardous process areas. It bridges electronic DCS control systems and legacy pneumatic final control elements, eliminating signal mismatch and supporting precise modulation of control valves without frequent calibration drift.
3. Technical Specifications
- Brand: Foxboro
- Model: E69F‑TI2‑JRS
- Warranty: One Year
- Condition: 100% New & Original
- Input Signal: 4‑20 mA DC, input impedance 170 Ω, supports direct / reverse action
- Pneumatic Output: 20‑100 kPa (3‑15 psi) standard range
- Built‑in Features: Explosion‑proof threaded enclosure, integral junction box, adjustable filter regulator, supply & output pressure gauges
- Hazardous‑area Rating: Explosion‑proof certification for Class I Div 1 hazardous locations
- Operating Temp: ‑40 °C to +70 °C
- Mounting: Field‑surface pipe‑mount installation
- Weight: 6 kg
- Status Indication: Local pressure gauge readout for supply and output pressure
5. Application Scenarios
- Chemical Process Plant: Field‑installed I/P converter translating DCS 4‑20 mA outputs to pneumatic pressure for modulating control valves on reactors and distillation columns.
- Oil & Gas Refinery: Mounted near valve actuators in classified hazardous zones, enabling electronic control of pneumatic final elements for pipeline and fractionation unit loops.
- Power Plant Auxiliary System: Deployed for boiler feed‑water and flue‑gas damper control, interfacing distributed control system with pneumatic actuators in heavy‑dust industrial environments.
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