Product Description
Foxboro E69F‑T12‑JRS (E69F‑TI2‑J‑R‑S) is a field‑mounted explosion‑proof Current‑to‑Pneumatic (I/P) converter. It acts as an interface between electronic control systems and pneumatic actuators. The unit accepts 4‑20 mA DC analog signal from DCS or PLC and converts it proportionally into standard 3‑15 psi (0.2‑1.0 bar) pneumatic output to drive pneumatic control valves and actuators. This unit is equipped with threaded‑cover explosion‑proof housing, integral explosion‑proof junction box, built‑in adjustable filter regulator, plus supply and output pressure gauges. Zero, span and direct/reverse action can be adjusted on‑site. Rugged compact construction provides good vibration resistance and environmental immunity. Designed for hazardous area installation with IP65 / NEMA 4X protection and global explosion‑proof approvals. Loop‑powered design requires no external power supply. Mounting options include wall‑mount, 2‑inch pipe mount and valve‑yoke mount for easy installation and maintenance. This model is manufacturer discontinued; only surplus and refurbished units are available on market.
Technical Specifications
| Item | Specification |
|---|---|
| Model | E69F‑T12‑JRS (E69F‑TI2‑J‑R‑S) |
| Type | Current‑to‑Pneumatic (I/P) Converter |
| Input Signal | 4‑20 mA DC, loop‑powered, 170Ω impedance; direct / reverse action selectable |
| Pneumatic Output | 3‑15 psi (0.2‑1.0 bar / 20‑100 kPa) |
| Air Supply | Clean dry instrument air, 20‑30 psi supply pressure, 5 μm filtration |
| Accuracy | ±1.0% Full Scale |
| Linearity | ±0.5% FS (typical) |
| Repeatability | ±0.25% FS (typical) |
| Response Time | ≤0.5 s (10‑90% span) |
| Configuration | Threaded‑cover explosion‑proof housing, integral explosion‑proof junction box, filter regulator, supply & output pressure gauges |
| Protection | IP65, NEMA 4X; Ex‑d, FM, CSA, ATEX, CE certified |
| Operating Temperature | -40℃ ~ +80℃ |
| Connections | Pneumatic:1/4″ NPT; Electrical conduit:1/2″ NPT |
| Mounting | Wall mount, 2‑inch pipe mount, valve‑yoke mount |
| Weight | Approx. 2.3 kg |
| Status | Manufacturer Discontinued, surplus / refurbished only |
Industry Applications
- Petrochemical & Refining: Pneumatic control valve for distillation column, heater furnaces; signal conversion for hazardous explosive zones, driving process valve actuators.
- Power Generation: Pneumatic actuator control for boiler, gas turbine, flue‑gas desulfurization & denitrification systems for pressure and flow regulation.
- Oil & Gas: Offshore platforms, well‑site hazardous location, pneumatic valve signal conversion.
- Chemical & Pharmaceutical: Pneumatic regulation for reactor and drying equipment under corrosive process conditions.
- Metallurgy & Water Treatment: Actuator control for blast furnace, rotary kiln and waste‑water treatment; suitable for dusty, humid heavy‑duty field environments.
- General Process Industry: Bridge electronic analog signal from DCS / PLC to pneumatic actuators across various process plants.
There are no reviews yet.