Premium Members Leandro Silva Posted April 29, 2010 Premium Members Report Share Posted April 29, 2010 Hello all, I m using global media pro batteries on a Baer Bel sled. 3 batteries are necessary for 24v power plus monitor and wireless focus. When fully charged, the two batteries that provide power read 32v, or 16v each. I m shooting with an arri 435 es. During prep, a small optex wireless sender got fried (connected only to the camera via RS cable). Rental said it was their own faulty cable. I wonder if the camera is somehow overpowered. The manual states the camera can handle up to 35v power. Could the 32v be too close for comfort? Could I somehow fry accessories connected to the camera? Thanks in advance for your time. Leandro Quote Link to comment Share on other sites More sharing options...
Premium Members Lukas Franz Posted April 29, 2010 Premium Members Report Share Posted April 29, 2010 I don't think so. As far as I know the camera should have a regulated power output. It's not common that any film or video camera outputs an unregulated voltage for powering accessories. And even the input is regulated, so you may power the 435 even with up to 35V, shouldn't be a problem at all. But you may check the ground (power and video gnd) of all accessories, camera, sled. Sometimes there are voltage differences between video and DC ground from accessories and if you wire everthing together it could fry delicate devices... Good luck. Lukas Quote Link to comment Share on other sites More sharing options...
Premium Members Leandro Silva Posted April 30, 2010 Author Premium Members Report Share Posted April 30, 2010 Hello Lukas, Thanks a lot for your answer. Do you think that, maybe, the problem lies with the sled? The video sender was powered by the camera, but it could be that it fried when the bnc cable touched the sled's bnc outlet? If that s the case, what could be that caused it? A short circuit? Thanks again Leandro Quote Link to comment Share on other sites More sharing options...
Premium Members Lukas Franz Posted April 30, 2010 Premium Members Report Share Posted April 30, 2010 Hi Leandro Possible. Check the grounds with a voltmeter/multimeter. Do you have a voltage difference between DC ground and video ground on any device (sled, accessories). That actually shouldn't be but rarely there is. You also can check it with an Ohmmeter, without powering the devices. Of course it could have been that (faulty) cable causing the problem or the video sender had a bad day. Electronic devices break. Best. Lukas Quote Link to comment Share on other sites More sharing options...
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