PT686 SERIES

PT686 Electronic Pressure Switch

PT686 Electronic Pressure Switch combines a high-performance monocrystalline silicon pressure sensor with an intelligent digital controller for reliable pressure monitoring and switching. Featuring a bright OLED display, programmable switching outputs, analog output options and Modbus RS485 communication, it is ideal for industrial automation, hydraulic and pneumatic systems.

Accuracy 0.1% FS to 0.5% FS

Pressure Range 0-10mbar / 0-4bar

Output 0–10 V / 0–20 mA / More Options

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Technical Specifications

MEASUREMENT PERFORMANCE

Pressure Range

0-4bar / 0-10mbar

Accuracy

0.1% FS / 0.2% FS / 0.5% FS

FUNCTIONS & DISPLAY

Display

LED

ELECTRICAL & COMMUNICATION

Output

4–20 mA / 0–10 V / 0–5 V / 0–20 mA / 1–5 V / PNP / NPN

Power Supply

12~36 VDC

MECHANICAL

Process Connection

G1/4 / G1/2 / 1/4 NPT / 1/2 NPT / M20×1.5 / Others / 1/4 BSPP / 1/2 BSPP

Weight

<0.5 kg

ENVIRONMENTAL

Operating Temperature

-40~85°C

Product Overview

PT686 Electronic Pressure Switch is designed for precise pressure monitoring, switching and control in industrial automation systems.

It integrates a monocrystalline silicon pressure sensor, intelligent electronics and a bright OLED display into a compact housing, providing stable measurement and programmable switching functions.

With configurable PNP/NPN outputs, optional analog outputs and Modbus RS485 communication, the PT686 is suitable for hydraulic equipment, pneumatic systems, OEM machinery and process automation.