This document introduces a pressure transmitter with intrinsic safety explosion-proof structure for the semiconductor industry, which has the ability to use explosive gases and the suitability for high-purity gases. The product adopts an evaporated semiconductor strain gauge as the pressure sensing component, which has durability and stability, and the dead zone is very small. In addition, it also has ultra-clean processing and excellent electrical reliability.
This manual describes the Model KJ95 intrinsic‑safety pressure transmitter, which can be used in hazardous areas classified as Zone 0, 1, or 2. The device features a semiconductor‑type pressure gauge, ultra‑clean construction, and a hybridized circuit for high electrical reliability.
The document lists the technical specifications, including pressure ranges, output signal, supply voltage, accuracy, temperature limits, and connection options such as VCR, SK, and CVC fittings. It also details the safety certification, explosion‑proof classification (3aG4), and recommended installation practices. This manual is written in Japanese.
| Pressure range | 0‑10 MPa (up to 0‑20 MPa options) |
|---|---|
| Output signal | 4‑20 mA DC |
| Supply voltage | 24‑26.4 V DC |
| Accuracy | ±1.0 % FS (or ±0.5 % FS) |
| Operating temperature range | -10 °C to 60 °C |
| Maximum allowable pressure | 2 × pressure range |
The KJ95 can measure pressures from 0 MPa up to 10 MPa, with an optional range up to 20 MPa.
It provides a 4‑20 mA DC current loop output.
The device operates from a 24 V to 26.4 V DC power supply.