Where to buy 5v DC photocell

[Ravenvalor]

Hello

Does anyone know whether or not 5v DC photocells are still readily available?
This is for the old squareD 5C lighting manager. 2-conductor plus one shield .
Full brightness is .56vDC
Full darkness is 4.99vDC

Thank you

 

[hillbilly1]

They are proud of them, but what you are looking for is an analog light sensor.

kele.com | PLC Multipoint MK7-B-CR-0/5 | Lighting Controls | Light Level Sensors

Buy the MK7-B-CR-0/5 Today! Over 1.8 million parts in stock ready to ship today!

www.kele.com

 

[Ravenvalor]

They are proud of them, but what you are looking for is an analog light sensor.

kele.com | PLC Multipoint MK7-B-CR-0/5 | Lighting Controls | Light Level Sensors

Buy the MK7-B-CR-0/5 Today! Over 1.8 million parts in stock ready to ship today!

www.kele.com

Thank you. Spec sheet says they are 24vDC

 

[Ravenvalor]

No biggie
I’ll just convert the system to 120v AC

 

[winnie]

Thank you. Spec sheet says they are 24vDC

The linked page says 24vDC, but if you go to the datasheet you will see you can order it for different supply voltages, including 5V. You also need to check that the response is correct (5V for dark, low for bright), not clear to me.

 

[winnie]

Nevermind, I understand the table now. Low output voltage corresponds to low light, high output voltage corresponds to bright light, the opposite of what you want.

Still might be worth calling the company. The numbers you gave sound suspiciously like a photodiode being driven by the lighting manager box, and the company might be able to provide this.

 

[Ravenvalor]

Thanks
I should have delved deeper …

 

[hillbilly1]

They offer a 24 v power supply, but you would need a four wire cable. Don’t know how far, or hard it would be to change your existing two wire.

 

[Ravenvalor]

I am working with the folks at Kele. It turns out the original photocell is theirs.
Thanks for the great help.