Help with wiring mini timer

Thread Starter

Vigilantshot

Joined Jul 31, 2025
3
Hello
I’m using a 12 volt power source to power this timer. On the right side, next to the blue relay, I have terminals. The center says COM (ground). The other two are CK and CB. This timer didn’t come with any paperwork. This timer has a dark blue box with a secrete to the lady of the relay. This timer is supposed to e adjustable from 2 to 200 minutes. The white plug to the far left goes to a push button switch. One LED on the board comes on when I power the board up. When I push the switch button, another light comes on for a few seconds.
im trying to have the timer activate the actuator after two minutes. I also want to be able to push a button to cancel or delay activation for another two minutes.
I’m working on a life saving device prototype. I have a strong mechanical background but limited electronic experience. Any help would be greatly appreciated. I can also be reached by phone at 484-782-8217
I’m in PA just west of Philly.
Thank You
 

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ericgibbs

Joined Jan 29, 2010
21,420
Hi Vigil.
This is a clip from a website.
E

Relay activation delay from power-up.
When 12Vdc is applied to the module, a timer is started. At time-out, the relay is activated.
Time adjustable between 0 and 10 seconds.
The relay is a single pole changeover type with screw terminal connections for normally open (marked CK), common (COM) and normally closed (CB).



https://www.bitsboxuk.com/index.php?main_page=product_info&products_id=4043
 

MisterBill2

Joined Jan 23, 2018
27,362
Here is a good guess, which is that on the other end of the PC board with terminals CK, Com, and CB, are the relay output connections. So use your ohm meter to see which terminal is normally closed to the "COM" terminal.
Whatever you mean by " im trying to have the timer activate the actuator after two minutes." is not obvious That timer appears to be a simple triggered interval timer that also trigger at power on. Or maybe not.
When you finally get it adjusted, it will operate the relay for two minutes and then release the relay.
To have a function of operating with a delay of two minutes after you push the button , you need a different timer, OR some additional circuit including another relay. This timer can not do what you seem to be requesting, which is having the output off initially, before anything, then switching ON a load two minutes after pressing the button.
 

Thread Starter

Vigilantshot

Joined Jul 31, 2025
3
Thanks Bill
I tested the relay output terminals and got the values in the attached photo.
My objective is to have a timer with a button that can initiate a two minute delay of actuation of the actuator. Ultimately, I need to have the ability to press that button again to delay or restart the delay timer for another two minutes each time the button is depressed.
the second picture shows the button that is plugged into the board.
upon power to board, one LED light comes on in the board. When the button is pushed, another LED comes on for a few seconds. I’ve tried turning the screw on the blue box, but I’ve never had any voltage come out of the relay output terminals. There is supposed to be an adjustment from 2 to 200 minutes.
As I mentioned, the device this is being applied to is an apparatus that will save thousands of lives worldwide annually.
I’m a handyman with limited electronic ability. I have the mechanical end ready to go. I just need the timing/delay circuitry to facilitate this.
I can’t be more specific at this juncture because I haven’t applied for a patent yet.
I am certainly appreciative and willing to pay someone to put the electronic timing end of this together so I have a working prototype.

Again, I’m outside of Philadelphia and can be reached by phone at <Mod: deleted phone number>
My name is Ed
Thanks for your imput
 

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MisterBill2

Joined Jan 23, 2018
27,362
The timer out connections are ONLY switching contacts, to allow it to control voltages different and isolated from it's power supply. AND electric spidey is correct in his example and comment.
What youare looking for is a delay on operating counter, which that function could be created with this timer and two additional relays. Not simple.
 
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