Help Understanding Relay Diagram

[thetedinator]

All,

I bought this dual optical sensor thinking I would replace a couple of float switches. The float switches are wired to an Apex break out box. The first switch turns on the top-off and the second is a back up in case the first gets stuck in the on position. Anyway, I thought this Uxcell dual sensor would do the trick but I may have purchased the wrong thing. Can someone look at the diagram on the circuit board for the relay and decipher it for me. I think the relay will only trip when both sensors are wet.



Thanks

 

[keepLearning]

You need to provide Power for the optical sensors. They need 5v dc ....use a cell phone charger for that....

 

[thetedinator]

You need to provide Power for the optical sensors. They need 5v dc ....use a cell phone charger for that....

Thanks but the working voltage is 85v - 265v AC.

What I am struggling with is the triggering of the relays..

Here is a link to the sensor.

http://www.ebay.com/itm/Dual-Sensor-Optical-Infrared-Water-Liquid-Level-Detection-Sensor-Control-Module-/302060477802?hash=item4654351d6a:g:b04AAOSwxg5Xyj7t

 

[keepLearning]

That is the other side of the relay, just like a normal relay. I almost bought this one when the guy on "clay-boa" made his version of the break out box for $12. With his board, you can use these optical sensors. Still need the 5V dc adaptor

 

[thetedinator]

 

[theMerchant]

Looks like the board you bought needs 220v ac. bit you can use the sensors on another relay board like Keeplearning said

You circle the part where you can choose either Normally Open or Normally Closed

Sent from my SM-G955U using Tapatalk

 

[thetedinator]

Looks like the board you bought needs 220v ac. bit you can use the sensors on another relay board like Keeplearning said

You circle the part where you can choose either Normally Open or Normally Closed

Sent from my SM-G955U using Tapatalk

What I bought runs on 85v-265v. I am powering it successfully on 120v.

Are you saying that both sensors are either NO or NC. What I want to do is trigger a pump from one sensor and then use the other sensor as a back up to shut down the pump and trigger an alarm.

 

[theMerchant]

What I bought runs on 85v-265v. I am powering it successfully on 120v.

Are you saying that both sensors are either NO or NC. What I want to do is trigger a pump from one sensor and then use the other sensor as a back up to shut down the pump and trigger an alarm.

I bought an ICECAP Ato for this exact purpose.

Personally I dont like to use 110v AC anything around saltwater, unless its enclosed in a waterproof enclosure. I would look for a DC version to be safe.

From the markings on the relay board, it is NO . (You can test this with a cheap Ohm meter from Harbor Freight.) . Sensor most likely NO and just energizes the relay

I dont this you can use this for 2 different applications, you will need another board. The dual optical sensor are used for backup in case one fails.

Try using this this way, one on NO and the other on COM to the breakout box (test with meter)

found this one in english
http://www.ebay.com/itm/High-Qualit...d83b6b9&pid=100005&rk=4&rkt=6&sd=322329253833

 

[keepLearning]

can you zoom in on the black chip. There is a web site on that and I can't read it clearly.

the 4 screws are normally for output connection. the 2 holes are for DC power. There is no need to mark the 2 for AC as they are alternating.

It does not make any sense to build something that takes 850V input

 

[keepLearning]

This would make a lot more sense, but it uses 12 V dc power. I thought I saw the 5V dc input before
http://www.ebay.com/itm/DC-12V-Liquid-Level-Controller-Sensor-Module-Water-Level-Detection-Sensor-switch/111977959363?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D41451%26meid%3D4435867e91784ee78c715ffa09f4dba6%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D252405948511

 

[DougSupreme]

can you zoom in on the black chip. There is a web site on that and I can't read it clearly.

the 4 screws are normally for output connection. the 2 holes are for DC power. There is no need to mark the 2 for AC as they are alternating.

It does not make any sense to build something that takes 850V input

Actually, it does make sense to label the terminals for 120v A.C.. one constantly has a ground reference. Depending on the components, it may not work properly if line voltage is applied to the wrong terminal

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[thetedinator]

Mods - please close.