SZ-7556T-D Temperature Controller | Dual Probe Differential Mode for Oil Chillers & Panel A/C
The SZ-7556T-D Temperature Controller offers dual probe differential mode operation with a 20(8)A compressor relay, 5A alarm output, precise 0.1°C control, and compressor fault monitoring. Ideal for oil chillers and panel A/Cs.
Product Summary
The SZ-7556T-D Temperature Controller is a robust differential mode controller designed to work with two NTC probes for applications requiring accurate dual-sensor monitoring. With compressor fault detection, alarm relay, and password protection, it ensures reliable operation for oil chillers, panel A/Cs, and other industrial cooling systems.
Key Features
Differential mode operation with 2 NTC probes
Temperature range: –30°C to +80°C
Resolution: 0.1°C or 1°C (settable)
20(8)A compressor relay output
5A alarm relay output for fault indication
Digital input for compressor fault detection
Touch-sensitive keypad for easy operation
Adjustable ON & OFF time delay for compressor protection
Password protection for secure settings
Automatic operation in case of sensor failure
High & low temperature logging
Compact panel mount design (78 × 36 × 80 mm, cutout 71 × 29 mm)
Applications
Oil Chillers
Panel Air Conditioners (Panel A/C)
Industrial refrigeration systems requiring dual-probe control
Cooling units with compressor safety needs
Product Benefits
Dual-probe accuracy – differential mode ensures better control over cooling systems
High reliability – prevents compressor damage with delay and fault input protection
User security – password-protected parameters avoid accidental changes
Alarm-ready – dedicated 5A alarm relay for quick fault alerts
Industrial-grade durability – designed for critical applications like oil chillers
FAQs
Q1. What makes this model different from SZ-7556T?
SZ-7556T-D supports differential mode operation with 2 probes, providing dual-sensor control.
Q2. What is the temperature range?
It supports –30°C to +80°C with settable resolution (0.1°C / 1°C).
Q3. Is there a dedicated alarm function?
Yes, a 5A alarm relay is included for fault alerts.
Q4. What applications is this best suited for?
It is ideal for oil chillers and panel air conditioners.