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We sometimes have to bring to light our oscilloscope for troubleshooting. It is a big bulky CRT scope and I reluctantly drag this heavy instrument around. It says 'digital', but it's really not that sophisticated. 20 years old. 20 kg heavy.
I need some preferences for a good light weight scope and/or PC-adapter for troubleshooting industrial equipment, mostly encoder systems, DC drives/thyristor bridges and something of the sort. This is not an instrument that we will use very often, so it has to be fairly simple to use, but with the functionality enough to let's say detect and freeze on missing pulses from an encoder with varying speed.
I also would like to bring up a second issue: We sometimes look at the output from (DC) drives. It's always a challenge about grounding. The scope's chassis ground is the same potential as the protective ground. This doesn't work when measuring output from a drive. We solve this by temporarily disconnecting the ground wire from the scope's mains plug. I don't like this at all, but it's the only working solution found. How do you solve this?
I need some preferences for a good light weight scope and/or PC-adapter for troubleshooting industrial equipment, mostly encoder systems, DC drives/thyristor bridges and something of the sort. This is not an instrument that we will use very often, so it has to be fairly simple to use, but with the functionality enough to let's say detect and freeze on missing pulses from an encoder with varying speed.
I also would like to bring up a second issue: We sometimes look at the output from (DC) drives. It's always a challenge about grounding. The scope's chassis ground is the same potential as the protective ground. This doesn't work when measuring output from a drive. We solve this by temporarily disconnecting the ground wire from the scope's mains plug. I don't like this at all, but it's the only working solution found. How do you solve this?