Interfacing a Hamamatsu UVTron Flame Detector to the MAKE Controller

I've sent an email about this topic to Acroname's support as well, trying to reach out and see if anyone can help me clear up some assumptions about the Hamamatsu UVTron Flame Detector and how it connects to the MAKE Controller.

The flame detector is this one here: http://www.acroname.com/robotics/parts/R67-UVTRON.html
and it provides either a 0V or 5V output depending on the UV pulses detected. The driving circuit has an input voltage specification of 10-30V DC, but the manual states that this requirement can be avoided if I have a 'reliable, regulated 5V supply on hand.'

So, for the input of this thing, does the 5V setting on the Analog Input Voltage Bank of the MAKE Controller count as a reliable, regulated 5V supply to power the driving circuit?

And for the output, will it be necessary to use a voltage divider circuit to drop the 5V output to the 3.3V that the MAKE Controller reads? I am not sure if the Hamamatsu UVTron Flame Detector is a resistive sensor.

Thank you-

-Gilbert Davis

The 5V on the ain voltage bank is regulated and should be fine. It depends how much current you're drawing, of course...about 1A total on the 5V line is all the Make Controller can provide. If the signal from the device is digital (just on/off) then you don't need to worry about a voltage divider into the Make Controller inputs. Sounds like fun - would you consider writing up your process and contributing it as a how-to?

If I can get it running up to snuff with no troubles, then I'd be glad to consider it.

According to what I have here, the 10-30Vdc input voltage node consumes an average of 3 mA, and the regulated 5Vdc input node can handle 30mA of peak current, so I'll assume it can safely run on the 1A 5V line.

Thanks for the response and help!

Hi ...

I already buy UVTron flame sensor and Driving Circuit.

The problem is when it detect the flame, output from Q give 250mV - 330mV

Also from Q bar, from just only 4.5V.

Why? Is't the driving circuit damaged.

How to solve?