EK-3020. REF. Temperature Controller.

The EK-3020 is a microcomputer-based digital temperature controller primarily used for regulating refrigeration and defrost functions in equipment like cold storage, air-cooled cabinets, and refrigerated display cases.

Technical Specifications
  • Measurement Range: -40°C to 99°C.
  • Control Range: -40°C to 85°C.
  • Accuracy: ±1°C between -30°C and 50°C; ±2°C for other ranges.
  • Resolution: 0.1°C or 1°C.
  • Power Supply: 220VAC ±10%, 50/60Hz.
  • Output Capacity:
    • Refrigeration: 10A/220VAC (can drive 1HP single-phase compressor directly).
    • Defrost: 10A/220VAC.
  • Sensor Type: NTC probe (10KΩ/25°C), 2 meters in length.
  • Mounting Size: 71mm x 29mm.
Key Features
  • Touch Interface: Six high-precision capacitive touch keys with an automatic key lock function (locks after 30 seconds of inactivity).
  • Safety & Protection:
    • Alarms: Built-in buzzer for over-temperature and sensor failure (E1 code).
    • Durability: IP65 waterproof and dustproof front panel protection.
  • Special Functions:
    • One-Key Recovery: Allows users to quickly reset to factory default parameters.
    • Defrost Memory: Remembers the defrost cycle even after unexpected power failure to ensure consistent cooling efficiency.
    • Forced Defrost: Manual override to initiate a defrost cycle.
Operation & Programming
  • To Unlock: Press the OK/Unlock key for about one second until the buzzer beeps.
  • Set “On Temp”: Press the On Temp button, adjust with arrow keys, and press OK to save.
  • Set “Off Temp”: Press the Off Temp button, adjust with arrow keys, and press OK to save.
  • System Menu: Press and hold OK for more than 5 seconds to enter advanced settings (parameters F1–F5).
Description

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