SZ-7526TX Temperature Controller | Cold Rooms, Freezers & Refrigerated Cabinets

Product Summary

The SZ-7526TX Temperature Controller is a compact and reliable solution for refrigeration applications. With its dual 7-segment LED display, precise 0.1°C resolution, and intelligent defrost management, it ensures optimal cooling performance and system protection. Integrated communication via RS-485 Modbus RTU makes it suitable for advanced monitoring and automation systems.

Key Features

• Dual 7-segment LED display (2 × 17mm & 1 × 11mm)

• Temperature range: –45°C to +100°C

• Resolution: 0.1°C or 1°C (settable)

• AUX digital input for compressor fault / door open detection

• Relay output: Compressor 8(3)A

• TTL output for RS-485 Modbus RTU communication

• Auto/Manual defrost with time-based off-cycle option

• Alarm relay for faults with buzzer indication

• ON/OFF time delay for compressor protection

• Password protection for parameters

• Automatic operation in case of sensor failure

• Logs for high & low temperature events

• Compact panel-mount housing: 78 × 36 × 80 mm

Applications

• Small cold rooms

• Freezers

• Refrigerated cabinets

• Compact refrigeration systems

• Food & pharma storage

Product Benefits

• Accurate temperature control with up to 0.1°C resolution

• Improved system reliability with compressor & sensor fault protection

• User-friendly operation with dual LED displays and touch-sensitive keypad

• Energy savings through smart defrost cycles and compressor delay settings

• Future-ready with RS-485 Modbus RTU for automation and remote monitoring

FAQs

Q1. What is the temperature range of the SZ-7526TX?
It supports –45°C to +100°C with settable resolution (0.1°C / 1°C).

Q2. Can this controller detect door open or compressor faults?
Yes, it has a digital input for compressor fault or door open detection.

Q3. Is RS-485 communication supported?
Yes, the TTL port supports RS-485 Modbus RTU protocol for integration.

Q4. Can it work automatically during sensor failure?
Yes, the controller automatically switches to safe operation mode if the sensor fails.