Product details
Product Description
The SZ-7521-P Digital Temperature Controller is designed for air dryer and refrigeration applications, offering precise temperature control and reliable system performance. It ensures stable operation by maintaining accurate temperature levels and protecting system components from frequent cycling.
This controller features time-based defrost functionality along with intelligent control logic for compressor and drain valve operation. It supports NTC sensor input and provides relay outputs for compressor, defrost, and drain valve, enabling efficient moisture management and cooling performance.
Equipped with a clear LED display and touch-sensitive interface, the SZ-7521-P allows easy configuration and monitoring. It also includes advanced protection features such as compressor delay, memory retention, and automatic operation in case of sensor failure, ensuring dependable performance in industrial environments.
Key Features
Digital temperature control with high accuracy
Time-based defrost function
Compressor, defrost, and drain valve control
Compressor protection with time delay
Auto operation on sensor failure
LED display with touch interface
Reliable and stable performance
Applications
Air dryers
Compressed air systems
Cold rooms
Refrigeration systems
FAQs
Q1: Is SZ-7521-P suitable for air dryer systems?
Yes, it is specifically designed for air dryer and refrigeration applications.
Q2: Does it support defrost function?
Yes, it includes time-based defrost functionality.
Q3: Can it control a drain valve?
Yes, it supports drain valve control for moisture management.
Q4: What protection features are included?
It includes compressor delay, memory retention, and auto operation during sensor failure.









