How to Operate the Timer Relay Box

Introduction

The Onset Timer Box is a programmable delay relay circuit, used to switch AC equipment on and off for the required amount of time.

The guide includes how to connect the timer box to existing equipment, and how to calibrate the trigger and power delay for the system.

Connect the box to the mains power using an IEC C13 cable (kettle cable)
Check the switch is turned on.
Wait a few seconds, the LED under the knob will hold green to indicate the system is operating.

Turn the system off and on using the switch at the power input
Push and hold the rotary knob, while the system is being powered on. Release the knob when the LED is solid purple.
The LED will begin to flash blue when ready.

Turn the knob clockwise to increase the delay, and counter clockwise to decrease. The delay changes in 0.5 second increments.
Turn the knob until the desired delay is achieved.
Press the knob to set the delay. The LED will flash green when the delay has been saved.

Turn the knob clockwise to increase the delay, and counter clockwise to decrease. The delay changes in 0.5 second increments.
Turn the knob until the desired delay is achieved.
Press the knob to set the delay. The LED will flash green when the delay has been saved.

Once calibrated, the timer box will switch to operation mode.
The LED will hold green when the box is waiting to be triggered.
The Box can be triggered through the button wires, or the encoder button
Once triggered, the LED will turn amber for the initial delay
The LED will turn RED when the equipment is being powered.
The LED will return to green once the system is ready to be triggered again.
Cycle the power, and trigger the system to ensure the calibration has been saved.