- May 17, 2020
Hello I was wondering if anyone could help me on a bit of information i was trying to obtain regarding the PM5200 Meter . now the main reason i would like to know or get the pinout of the Laser power head detector , is because i obtained a 200 Watt Thermopile sensor on ebay and want to hook this up to the Pm5200 meter. I am guessing the reason why they use a db25 pin connector is because of the possible connections to a board in the head which would possibly contain a preamp to condition the output power of the thermopile sensor so that the PM5200 can read more accurately and stably. I also think their might be a connection to a thermistor that would help to detect the ambient temperature and allow the meter to compensate for the surrounding temperature in diagnosing the accuracy of the detected output power of the laser beam. These are all conjectures on my part so I am stabbing in the dark. It also might just as simple as attach one side of the thermopile to this pin # and the other side of the thermopile to the ground pin # etc. Any information would be appreciated on this as I feel I have been spinning in a constant chase of the nose to the tail on the internet searches etc. At one point i considered just buy a laser detector head and plug it into this meter, however I have 2 of these thermopile sensors and was hoping to just machine some aluminum and attach the sensor to this and hook up the outputs to the meter. If i have to backward engineer a unit i would do this but it would be the last resort and would rather start on a fresh page . I am assuming the output of the thermopile is like 1mv/mw calibration reference etc. If you or anyone you might know that knows the pinout on what should be connected I would really appreciate it. Please advise....Thanks!!!!