RET-77-E-220 ▪︎ Basic Square Case Thermostat with 2 Buttons

          PV: 124
        

AL1

        SET: 120
      

Set Value: 120°C

Relay Output: Active

NOTICE: This product is from our previous series and is offered only for backup purposes. For new projects, please consider similar products.

Description: RET-77-E-220 is a basic square case temperature controller with 2-button operation. Designed for easy and fast use. Supports J and K type thermocouples (FeConst & NiCrNi). Does not support Pt100. Features a single relay output and limited parameter access. Perfect for compact panel installations.

Installation Notes:
1. Ensure voltage, temperature, and humidity limits are respected.
2. Keep relay load within limits and use external protection for overload scenarios.

[SET VALUE ADJUSTMENT]

Press SET once to display the set value. A blinking dot will appear. Adjust the value using "+" or "−" buttons.

[ACCESS TO PARAMETERS]

Hold SET for 4 seconds. When “E n G c” appears, set it to “11” to unlock parameters. Use ↑ / ↓ to scroll, press P to modify.

[EXIT MENU & RELAY RESET]

If no buttons are pressed for 50 seconds, or if P is held for 4 seconds, the menu will exit. After changing parameters, restart the device by disconnecting and reconnecting power.

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