Explains how battery packs charge and discharge and the battery pack state information, as well as how battery pack state information affects battery pack operation.
The document provides detailed specifications for Hitachi's EPR‑N7 and EPR‑N7E pressure transmitters. It lists standard models, pressure ranges, accuracy, output signal, power requirements, materials, and environmental ratings.
Additional sections cover dimensions, connection codes, optional accessories, and installation notes for both standard and high‑precision versions of the transmitters. This manual is written in Japanese.
| Output signal | DC 4‑20 mA |
|---|---|
| Power supply voltage | DC 11.4 V – 42.0 V |
| Pressure range (G20) | 20 kPa – 2 MPa |
| Pressure range (G100) | 0.1 MPa – 10 MPa |
| Pressure range (G500) | 5 MPa – 50 MPa |
| Accuracy (EPR‑N7, G20) | 0.2 % (≥ 0.2 MPa) |
| Accuracy (EPR‑N7E, G20) | 0.1 % (≥ 0.2 MPa) |
| Operating temperature range | -20 °C to 85 °C |
| Protection rating | IP67 |
| Diaphragm material | SUS316 (stainless steel) |
It provides a DC 4‑20 mA current signal.
The devices operate from DC 11.4 V up to 42.0 V.
The G100 range measures from 0.1 MPa to 10 MPa.
They are rated IP67 for dust and water protection.