E69F-TI2-JRS

Product Parameters

Model: E69F-TI2-JRS

Type: Field‑mounted current‑to‑pneumatic (I/P) converter

Enclosure: T (threaded cover, explosion‑proof)

Input Signal: 4–20 mA DC; split ranges 4–12 mA / 12–20 mA; 170 Ω impedance; direct/reverse action

Output Signal: 3–15 psi / 20–100 kPa / 0.2–1.0 bar

Supply Air: 20–25 psi / 140–170 kPa clean dry air

Accuracy: ±1.0% of full span

Linearity: ±0.5% of full span (typical)

Repeatability: ±0.25% of full span (typical)

Hysteresis: ±0.5% of full span (typical)

Dead Band: 0.1% of span

Response Time: ≤0.5 s (10% to 90% span)

Operating Temperature: 0 °C to +60 °C

Storage Temperature: −40 °C to +85 °C

Protection Class: IP65

Housing Material: Die‑cast aluminum alloy with epoxy coating

Options: J (integral explosion‑proof junction box); R (adjustable filter regulator without gauge); S (supply/output pressure gauges)

Weight: 2.3 kg (5.1 lb)

Dimensions: Approx. 150 × 150 × 100 mm (H×W×D)

Application and Operation Introduction

The E69F-TI2-JRS is an explosion‑proof current‑to‑pneumatic converter that converts 4–20 mA DC control signals from DCS/PLC into proportional 3–15 psi pneumatic outputs for valve actuators, dampers, and pneumatic relays in hazardous industrial areas.

It adopts magnetic balance and nozzle‑baffle principles, providing high stability and precision. The converter requires clean, dry instrument air for reliable operation.

Installation

Mount vertically on a wall, pipe, or valve yoke in hazardous (explosion‑proof) areas.

Allow 150 mm clearance for wiring, tubing, and calibration.

Electrical: 4–20 mA DC input (2‑wire/4‑wire) via integral explosion‑proof junction box.

Pneumatic: 20–25 psi supply to internal filter‑regulator; 3–15 psi output to actuator.

Calibration

Zero Adjustment: Apply 4 mA; adjust external zero screw for 3 psi output.

Span Adjustment: Apply 20 mA; adjust internal span wrench for 15 psi output.

Repeat until accuracy and linearity meet requirements.

Key Features

Explosion‑proof enclosure (T) with integral junction box (J) for hazardous locations.

Built‑in adjustable filter‑regulator (R) and pressure gauges (S) for on‑site monitoring.

High accuracy, linearity, and repeatability for precise valve control.

Compact, rugged design with IP65 protection for harsh environments.

Wide compatibility with standard 4–20 mA systems and pneumatic actuators.

Typical Applications

Chemical, petrochemical, oil & gas (hazardous areas)

Power generation, water treatment

HVAC damper control, boiler valve actuation