PT685 SERIES

PT685 Electronic Pressure Switch

PT685 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 0.075%F.S to 0.5% FS

Pressure Range -1~1600bar

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

Typical Applications

Food HVAC Hydraulic Industrial

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Technical Specifications

MEASUREMENT PERFORMANCE

Pressure Range

-1~1600bar

Accuracy

0.1% FS / 0.2% FS / 0.5% FS / 0.075%F.S

FUNCTIONS & DISPLAY

Display

LCD

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 / 1/4 BSPP / 1/2 BSPP

ENVIRONMENTAL

Protection

IP65

Product Overview

PT685 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 stainless steel housing, delivering stable pressure measurement together with programmable switching functions.

Configurable PNP/NPN outputs, optional analog signals and Modbus RS485 communication make the PT685 an excellent choice for hydraulic systems, pneumatic equipment, OEM machinery and industrial process control.