Yokogawa transmitter EJA120E-JES5J-712DC

The Yokogawa EJA120E-JES5J-712DC is a high-performance differential pressure transmitter from the EJA-E Series, designed for precise and reliable measurement in demanding industrial applications.

**Technical Specifications:**

*   **Model:** EJA120E

*   **Sensor Type:** Silicon Resonant Sensor

*   **Measurement Type:** Differential Pressure

*   **Output:** 4-20 mA DC with HART/BRAIN protocol (digital communication superimposed on the analog signal).

*   **Power Supply:** 10.5-42 V DC (standard for loop-powered devices).

*   **Accuracy:** ±0.04% of calibrated span (includes linearity, hysteresis, and repeatability).

*   **Reference Accuracy:** ±0.075% of URL.

*   **Stability:** ±0.1% of URL per 10 years.

*   **Ambient Temperature Range:** -40 to 85°C (-40 to 185°F).

*   **Process Temperature Range:** -40 to 120°C (-40 to 248°F).

*   **Pressure Limits:** The maximum working pressure and specific range are defined by the flange ratings and sensor code. The "712" code must be consulted on Yokogawa's datasheet for exact values, as it denotes the pressure range and flange options.

*   **Electrical Connection:** 1/2-14 NPT conduit connection (as indicated by the "J" in the suffix).

*   **Process Connection:** 1/4 NPT female (standard for this model variant).

*   **Display:** Integral LCD indicator (optional, specified by suffix codes).

*   **Housing Material:** Aluminum alloy with epoxy coating.

*   **Diaphragm Material:** Hastelloy C-276 (standard for this configuration).

*   **O-ring Material:** Fluorocarbon rubber.

*   **Protection Rating:** IP67, NEMA 4X.

*   **Safety Certifications:** Complies with IEC 61508:2010, suitable for use in Safety Instrumented Systems (SIL 2/3 according to IEC 61511).

**Description:**

The EJA120E-JES5J-712DC transmitter utilizes Yokogawa's proprietary silicon resonant sensor technology. This technology provides exceptional long-term stability, high accuracy, and strong resistance to vibration, shock, and ambient temperature fluctuations. The device converts the measured differential pressure into a