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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Allowable voltages on Scope
I have a Kikusui COS6100M Scope and want to look at the voltages coming
out of my RPC to see how out of phase each waveform is from the correct 120 degree phase angle. Someone told me not to apply the 240v to the scope that it will damage it. They advised to get a large resistor and drop the voltage across that and then use the 5v and look at the waveforms. That would be a large resistor and I would not know where to find one that large that would handle the watts. The manual says that the scope has allowable inputs of: Channel 1,2,3: +- 250volts at 20KHz (DC+AC Peak) EXT Trigger Channel 4,5: +-50volts (DC+AC Peak) at 1KHz and lower. Probe Inputs (10:1): +- 600volts (DC+AC Peak) at 1 Khz and lower Z Axis Input +- 25volts (DC+AC Peak) at 1KHz or lower. Also, what about grounding the scope? I heard someone mention about the chassis of the scope becoming charged and a possible shock hazard. What causes this to happen and what is the remedy? Any help greatly appreciated!!! Thanks, Steve |
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