Hi, welcome to product review by Robojax. in this tutorial I'm going to
introduce the KR 1204 at 12 volts 4 channel relay to control for AC or DC
load where the remote control over 400 33 megahertz let me turn it on atnd off
between the two and then this is now latch meaning I turn it on and turn off and
then 4 on and right with this kind of this cannot handle for for VAR f inside
it this 8 times let's get started
My name is Ahmad Shamshiri and I am presenting this tutorial from Canada.
this is the DKR 1204 a 12-volt 4 channel relay from Qiachip website here
they've shown it with different remote doesn't matter because all these 433
MHZ remote will work with us and you can purchase this from ebay Aliexpress
or Amazon the supplied is selling it for $10 US. here when I searched for 4
channel really I got this one this is the one that I purchase I believe with
these four keys. it is sold for $11.92 Canadian which you will receive it
between 40 to 60 business days. controlled via 433 megahertz you might
receive it with this type of transmitter key your or you might get it with this
type of transmitter depending on which you choose the mega health this is the
deceiver here which receives from this transmitter so it received when you
press a button depending on the mode it receives the signal detected and execute
the command by turning on or off one or multiple of these relays these relays
or just a mechanical switch that will turn on and off a load for each relay we
have three terminal this is for one that for the second one the tree and this
tree is for the third one and this last three is for the number four which I'm
going to demonstrate also it has been labeled here if you look at just in
these three here this said this is normally open NO, common COM and normally closed NC
normally open is labeled as NO common c om and normally closed NC and they
have been labeled here NC common normally open and we have numbers here
which corresponds to these numbers i'm going to demonstrate it and show you the
wiring so do not worry. here we have a two terminal that you can connect it 12
volts we will power this up. When i connect positive
and negative you see the LEDs on and this is my positive that the orange if I
switch the polarity and it has polarity protection so don't worry if you make
mistake it will not burn. when the relays are not on it consumes 10 mA
continuously from 12 volts one relay needs about 40 mA when it is
turned on so if you turn on all of this 4x40mA +10=170 so it
needs about 170 or if you be safe 200 milli ampere continuously at 12 volts
this coil is part of the receiver as an antenna make sure do not change the
shape of it otherwise it will either significantly reduce the range of it or
completely you will not be able to receive signal. this LED with turn red when it receives
signal and also when you do the programming it blinks . With the module also
with this box but it is absolutely useless because if you put this here how
can you pass the wires this 4 relay and also power this box is
totally waste so you will never be able to use it
Using it with Multiple Remote
Here I have two remotes. I've programmed that with this remote as you can see it works
but when I press this now this doesn't work. If we want to use more than one remote then
you need to buy this duplicated or cloning remote. what it does is that you
will you will use this remote program it with this and then you buy one of these
this will learn from this so the other one will learn from this you have to get
it but if you get to regular one this cannot learn from this and here in
order to open it you just need to put the screwdriver here and turn it I
and her is what is inside. it comes with a battery and the button side very solid
built this has a rubber which means it is water resistance I believe because
once you put it and press this the water should not get in.
Relay power explained
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and here is how we can calculate the power rating of a relay for example this
relay have been rated at 10 ampere at 250 volts, 10 ampere at hundred twenty
five and 10 ampere at 30 volt DC and 28 volts DC and all these voltages it has
been rated at 10 ampere but this one has been rated at 10 ampere 250 volts ac 15
ampere 125V and 10A at 250V regardless
of which module you have they all have a rating on them written so keep that in mind.
For example in your region if you are controlling an AC load and the voltage
is 220 volts, then 10Ax220V just put a zero it would be 2200 watts or 2.2
kilowatts and if you are in North America at 125 volts for example this
one is rated at 15 ampere so 15 times 120 you will get 1800 watt or 1.8
kilowatt if you are using let's say 12 volts and tell'em pair just multiply 10
times 12 volts at 120 watts if you overload any really with a more
than rated current it will melt and the hazard of fire and if you want to go the
other way let's say you know the power and the voltage and you want to
calculate the current let's say you have 1500 watt power and your region is 220
volts 220 this can handle 6.8 ampere so if you're using this relay it is rated
at 10 ampere you're good make sure that the current that you calculate is always
below the rated current or the power that you calculate is always below the
rated calculated power.
Wiring Explained
for this demonstration I'm going to use this AC bulb this is the plug that will
be connected to wall outlet and the light will be turned on the middle at
this point I have disconnected the wire one of the wires, the live wire here and
has twisted them and prepare them these two will be connected to the relay job
of realy is to turn it on by connecting these two wires turning on the light and
disconnecting it turning it off so this can be a bulb or a fan or any other load
the same way that realy will connect it and disconnect it. I'll have to
demonstrate there are two wires that they just shown you for the load this is
an AC bulb, I'm connecting it to channel one are these two wires now there is
power have to be careful these two wires that is for channel 1 if I press A you
will see it will turn ON and turn OFF and for channel 2 you will connected at
these two terminals if I press it you will see it will turn ON and OFF and for
channel 3 I've connected them at these two terminals let me turn it on and off
and for channel 4 it has been connected to these two terminals where you leave
one pin unconnected turn it on
Demonstration Mode 1:momentary
instead of a AC bulb or load I've connected four LEDs to four outputs on
going to demonstrate all feature of this module one by one. first we have to reset
this I've connected now 12V is connected here to
reset this we have to press this eight times I'm holding it one two three four
five six seven eight and it will blink now this is reseted.
now if I press any of these it will not work to program mood 1 which is just
momentarily press this once and then press any key now it blinks three times and
done. now this is momentarily if I press it on that one is on but I have to keep
it pressed release, OFF the same way for two same way for three and same way for four.
Demonstration of Mode 2: Toggle mode
To it program and again we have to clear this module by pressing this eight times one two
three four five six seven eight and it will blink or turn off now it has
been clear from previous programming. Mode two is toggle you have to press the same
button to turn it ON and press the same button to turn it OFF. let's program it
by pressing this twice once twice and then press any key done. after three
blinks. now to turn on channel one press on and then press the same button to
turn it off the same way for two three and four but you can keep them on all of
them or off because they are all independent.
Demonstration Mode 3: Latch mode
program and again we have to clear this by pressing this eight times one two
three four five six seven eight and it will blink will turn off now it has been
clear from previous programming. Mode three is latching meaning you have to press one
for turning it on and the other one to turning it off so once you press once
you turn on for example number one number two will be off so one of them
will be on at a time not all of them let's program it let's press it three
times once twice three times and press any button after three blink done. now
one is on and then if I press two only two is on the wrists or off so one at a
time on the rest of
Demonstration mode 4:2 channel momentary + 2 channel toggle
program and again we have to clear this by pressing this eight times one two
three four five six seven eight and it will blink. will turn off now it has been
cleared from previous programming. now mode number 4 is to channel
momentarily and 2 channels will be toggled let's press 4 , once twice
three times four times ready press any key three blinks done. now the two
channel will be momentarily so this is now toggle one and two and then the two
channel will be momentarily I have to hold it to keep it on but the other all
independent so they stay like that one and two can be toggled on and off if you
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Demonstration of Mode 5: 2 channel montary + 2 channels laching
To program and again we have to clear this by pressing this eight times one two
three four five six seven eight and it will blink or turn off now it has
been clear from previous programming now mood five is to channel momentarily and
to channel latch the program at plus 5 times 1 2 3 4 5 and press any key three
blinks done now 1 2 so these are now you see they are latching but these are
momentary after press it and hold it
Demonstration of Mode 6: 2 channel toggle and 2 channel latching
To program and again we have to clear this by pressing this eight times one two
three four five six seven eight and it will blink will turn off now it has been
cleared from previous programming now for mode 6 which is toggle and latch one
two three four five six and then press any button now the two channel will be
now toggle between the two and then this is now latch meaning I turn on and turn
off and then for on and off
Demonstration of Mode 7: 2 channel latching and 2 channel latching
To program and again we have to clear this by pressing this eight times one two
three four five six seven eight and it will blink will turn off now it
has been clear from previous programming mode number seven is latch and latch one
two three four five six seven I'm programming it for mode seven press any
key done. now these two are now latch one and two and then three and four three
and four
Subtitle typed and corrected by Ahmad Shamshiri on April 24, 2020 in Ajax, Ontario, Canada
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sure to subscribe hi welcome to product tutorial by Robojax in this tutorial
I am going to show you how we can use the four channel relay module to control
for electronic to can to control for to control to control for AC or DC load now
I have connected the NS now I've connected an AC bulb I can turn it on
and off