Sensor Detachable Pressure Switch 3ch+Communication

This product is a digitalized pressure monitoring solution designed to replace conventional mechanical pressure switches and gauges in various refrigeration and air conditioning systems. It offers enhanced functionality and operational convenience. The unit supports three pressure channels: high pressure, low pressure, and hydraulic pressure. Engineered for precise system control, it provides both pressure-based band control and PID control functions, enabling optimized management of variable-capacity compressors and inverter-driven outdoor unit fans. The sensor-separable design effectively eliminates leakage risks associated with high-pressure hoses, ensuring safe and reliable operation. Additionally, the device features a built-in high-reliability isolated communication interface, enabling real-time monitoring of sensor readings and various operational parameters for enhanced system management and diagnostics.

Product Name [Specification]	3ch Digital Pressure Switch [SPE-series]
Power Supply	100~240VAC 50/60Hz
Power Consumption	10VA
Display Device	3 Digit FND × 2ea, LED × 6ea
Control Output	Relay 250VAC 3A [Normally Open] × 4ea
Input Specification	4~20mA × 3ea
Current Output	4~20mA × 2ea, Load Resistance ≤ 500Ω
Communication	RS485 × 1ea (Isolated)
Operating Temperature & Humidity	-10 ~ 60℃, 20 ~ 90%RH (Non-Condensing)
Storage Temperature & Humidity	-20 ~ 70℃, 5 ~ 95%RH (Non-Condensing)
Protection Structure	IP43 (Standard)