1pcs Delay Relay Module Delay Timer Control Switch Board For Access Control

Features:
When power on or external press the trigger, the relay delay is adjustable from 1 second to 3 minutes, and the relay contacts are switched on or off.
With Indicator light of relay on and off.
When the time action is less than 0.5 seconds, stop the relay and protect the delay drive IC.
It can be used to control the delay switching on power supply of the high voltage panel of the valve power amplifier.
Single steady state working mode can be achieved by external Normally open button
Multiple circuit modules can be combined to realize linkage delay control. Realize intelligent control. Can do simple similar to PLC control.
For access control, and other occasions where delay control is required.

Specifications:
Input voltage: 12V
Input current: ≥ 50MA
Control switching parameters: voltage 0-240v, AC/DC, current 0-10A
Capacitance: 470UF capacitor (1s-3min)
Weight: 26g

Operation instructions:
1. Blue potentiometer, clockwise is to shorten the delay time, counterclockwise is to extend the delay time, this kind of delay board can delay 1s-3 min
2. After the delay time is set, the trigger delay will be started as soon as the power is on (the indicator light is on). The delay time is up and the indicator light is off. at this moment, triggers again, and the delay will start again. A trigger (short time) immediately after hearing "da", continuous trigger continuous has a voice of "da", indicate delay has reached the shortest is 0 seconds, then can adjust potentiometer counterclockwise, trigger again, slowly transferred to the delay of time.
3.Remember: the power supply must be < 12V, and the positive and negative power supply Can't be connected backwards.

Package includes:
1 x  Delay Relay Module