AFTC-ETC-512B.REF. Temperature Controller.

The AFTC-ETC-512B is a microcomputer-based digital temperature controller primarily designed for refrigeration systems but also configurable for heating applications. It features a large LED display, touch keys, and is housed in a compact panel-mount design.
Technical Specifications
  • Measurement & Control Range: -50°C to 105°C.
  • Accuracy: ±1°C (between -40°C and 50°C); ±2°C for other ranges.
  • Resolution: 0.1°C.
  • Power Supply: 220VAC ±10%, 50/60Hz.
  • Relay Capacity: 16A at 250VAC, capable of driving a 1HP compressor directly.
  • Sensor Type: NTC probe (10KΩ/25°C), typically with a 2-meter cable.
  • Protection Rating: IP65 for the front panel (water and dust resistant).
Key Features
  • Dual Mode: Supports both refrigeration (cooling) and heating functions.
  • Off-Cycle Defrost: Includes an adjustable defrost mode for refrigeration cycles.
  • Safety Alarms: Features a built-in buzzer for over-temperature alerts and sensor failure detection.
  • Quick Recovery: Includes a “one-key recovery” function to quickly restore factory default settings.
  • Tamper Protection: Supports password locking to prevent unauthorized changes to parameters.
Basic Operation
  • Unlock: If the keyboard is locked, press the SET key for several seconds until the parameter code appears.
  • Set Temperature: Press SET for 2 seconds until “SET” appears, adjust the value using the Up/Down arrows, and press SET again to save.
  • Manual Defrost: Press and hold the DEF (Defrost) key for several seconds to manually initiate a cycle.
Common Menu Codes
Code Function Range
F01 Password (Default often 123) 00–999
F02 Temperature Calibration -5.0 to +5.0°C
F05 Hysteresis (Difference value) 0.1 to 20.0°C
F06 Start-up Delay Time 0 to 99 minutes
Typical Wiring
  • Terminals 1 & 2: Power supply input (220VAC).
  • Terminals 3 & 4: Relay output for the compressor or heater.
  • Terminals 5 & 6: Connection for the NTC sensor probe.
  • Supplier Information
    This specific branded model is supplied by Ayub First Trading Company, which has showrooms across Saudi Arabia including Riyadh, Dammam, Jeddah, and Khobar
    • Contact Number: +966 56 004 2170.               
Description

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