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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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Fluke DMMs and VFD motor drives
DaveC wrote:
I'm considering the purchase of a new Fluke DMM. I like the low-impedance feature of the 117, but the low-pass filter feature of the 87 is also attractive. I had a conversation with a support engineer at Fluke today to try to help me decide between these two meters. It came down to the question of whether the variable-frequency drives I come across will have noisy outputs which the low-pass filter will be helpful in dealing with. The other day I was using my Fluke 33 clamp on amp meter to measure both amps and freq on a servo system. I got some rather high freq readings using it. I have a 117 DMM, if I get time, I'd like to check it against my 8+ year old amp clamp to see how freq compares. Wes -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller |
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