This delay relay provides a reliable on/off timing cycle after power is applied. It switches on for a programmable on-time, then off for a programmable off-time, and repeats the cycle. It is designed for long life and is commonly used to control the ON/OFF operation of solenoids, water pumps, motors, and similar loads. Key benefits - Simple automatic timing: after power-up, it starts its countdown and runs the programmed on/off cycle without further input. - Flexible timing: on-time and off-time are independently adjustable to suit your application. - Durable and long-lasting: built for repeated cycling with minimal maintenance. - Easy to configure: intuitive button controls for quick setup. How it works - After power is applied, the unit begins counting down automatically. - On-time is set by K1: the first three presses adjust the on-time. - Off-time is set by K1: the last three presses adjust the off-time. - Press K1 to switch the time-setting position, and press K2 to change the active digit. - The delay time is user-set via the buttons; once set, the countdown follows the configured values after power-on. Configuration and operation notes - The device supports a self-contained delay program that starts after power-on and operates according to the programmed on/off times. - The control uses simple push-button inputs (K1 and K2) to select time settings and adjust digits. - Suitable for continuous operation in automation tasks where a repeatable on/off cycle is required. Applications (examples) - Irrigation and solenoid valve control: automatically opens/closes valves at set intervals. - Small pump or motor cycling: alternates operation to prevent overheating or to manage duty cycles. - General automation: periodic activation and deactivation of equipment that benefits from a predictable timing pattern. Performance attributes - Function: programmable delay cycle with automatic on/off switching after power-up. - Compatibility: designed to drive common loads such as solenoids, water pumps, and motors (loads should be within the relay’s rated capacity). - Size and form: compact relay module suitable for integration into existing control panels or enclosures. - Durability: long service life with repeated cycling. This description preserves the original device’s function and user controls (on-time and off-time adjustment via K1, digit adjustment via K2, and countdown behavior after power-on) while presenting clear, customer-friendly information in concise bullet points and short sections.