This document is the catalog of PS4 series pressure switches of COPAL Electronics. The series pressure switches are non-mechanical moving electrical pressure switches with a fast response time of 1ms and can be equipped with analog output (1~5V). The pressure reference can be selected from gauge, differential and vacuum.
The Copal PS4 series is an electrical pressure switch designed for non‑corrosive gases. It features no mechanical moving parts, a fast 1 ms response, and an analog output ranging from 1 V to 5 V. Various pressure references (Gauge, Differential, Vacuum) and output configurations (NPN or PNP open‑collector) are available across the model range.
The leaflet lists detailed electrical specifications, environmental limits, and mounting dimensions for each model (e.g., PS4‑102G, PS4‑103G‑Z). It also includes internal schematics and wiring diagrams to aid integration into control systems.
| Response time | 1 ms |
|---|---|
| Analog output voltage range | 1 ~ 5 V |
| Switch output configuration | NPN open collector or PNP open collector |
| Supply voltage (excitation) | 12 V DC |
The PS4 series offers Gauge, Differential, and Vacuum pressure references.
PS4 switches can be configured as either NPN open‑collector or PNP open‑collector outputs.
The switches respond in 1 ms.
The analog output varies from 1 V to 5 V.