Getting an AC load solid state relay to work

Projects General Guidance
1

I am testing the 4 way solid state relay HY-M283 and I can't see it to work.

I'm testing the load contacts with a multimeter and expecting it to beep.

Arduino code:

int in1 = 7;

void setup() {
  pinMode(in1, OUTPUT);
  digitalWrite(in1, HIGH);
}

void loop() {
  digitalWrite(in1, LOW);
  delay(3000);
  digitalWrite(in1, HIGH);
  delay(3000);
}

I've got the channel LED blinking every 3 seconds but I don't have a closed contact on the output.

The relay board is powered by the Arduine 5V pin (I actually don't see contacts for a separate power supply).

  • Arduino's 5V is connected to board DC+
  • Arduino ground goes to DC-
  • Arduino pin 7 goes to CH1

I've got the CH1 LED going on/off every 3 seconds, but I don't have the load circuit closed (based on the multimeter beeping check).

Attached is a picture.

Is this somehow related to the specs only mentioning AC load and not DC load?
(https://www.amazon.co.uk/HaiMa-Hy-M283-Module-Trigger-Control/dp/B07W4Z3BN5)

solid.jpg
solid.jpg900×1200 227 KB

2

waverider1:
I'm testing the load contacts with a multimeter and expecting it to beep.

Not going to happen.
A SSR does not have relay contacts, and it only works with >75volt AC.
Leo..

3

It's called a "relay" but it is simply a TRIAC and some supporting circuitry, and a TRIAC will not "fire" below a certain current and voltage which your multimeter is specifically designed not to provide.

A standard digital multimeter will not pick up diode junctions unless you set it to "diode test" where it provides a higher voltage and even then, the TRIAC contains multiple junctions.