Henghe transmitter EJA120E-JES5J-912EA

**Product Model:** Henghe Transmitter EJA120E-JES5J-912EA

**Product Type:** Differential Pressure Transmitter

**General Description:**

The Henghe EJA120E-JES5J-912EA is a high-performance, micro-electromechanical system (MEMS)-based differential pressure transmitter. It is engineered for precise and reliable measurement of differential pressure, liquid level, and flow in a wide range of industrial process applications. The device features a robust single-crystal silicon sensor that delivers exceptional stability, accuracy, and long-term reliability even under demanding operating conditions. Its compact design and advanced signal processing capabilities make it suitable for installation in space-constrained environments while providing critical process data to control and monitoring systems.

**Key Technical Parameters:**

*   **Measurement Range:** The specific span is user-configurable within the transmitter's capable range. The model suffix "912EA" indicates a default or common range; please consult the factory data sheet for the exact minimum and maximum span limits.

*   **Output Signal:** 4-20 mA DC two-wire system, with digital communication overlay using the HART protocol (Version 5/7).

*   **Power Supply:** 10.5 to 42 V DC (standard operation with HART communication).

*   **Accuracy:** Typically ±0.075% of calibrated span, including the combined effects of linearity, hysteresis, and repeatability.

*   **Reference Accuracy:** Typically ±0.04% of calibrated span.

*   **Ambient Temperature Effect:** Zero and span error is typically less than ±0.1% of URL per 28°C (50°F).

*   **Static Pressure Effect:** Zero error is typically minimal due to the symmetrical sensor design. Span error is typically less than ±0.1% of reading per the rated pressure.

*   **Vibration Effect:** Typically less than ±0.1% of URL on zero and span.

*   **Response Time:** User adjustable from 0.1 to 64 seconds (damping constant).

*   **Process Connection:** Standard 1/2" NPT female threads or other optional connections as specified.

*   **Electrical Connection:** 1/2" NPT conduit entry.

*   **Display:** An optional integral LCD indicator (local parameter display and readout) is available.

*   **Materials:** Process wetted parts typically include 316L SST isolation diaphragms and Hastelloy