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  1. #1
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    Aug 2009
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    Need toupgrade my volt/amp chart recorder

    don't have lots of $$ to play with. Looking for a current data logger that I can leave connected for a day or so. So what is out there. Appreciate your input.

  2. #2
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    Oct 2014
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    What sort of range, resolution, and interval do you need?

  3. #3
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    Thread Starter
    Small 120/240, 40 amps. Like to have 3 phase .
    Quote Originally Posted by rjk_cmh View Post
    What sort of range, resolution, and interval do you need?

  4. #4
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    Oct 2014
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    I guess it's important to note that a digital data logger usually has a sampling interval, for example every second or every 10 seconds or whatever. This doesn't really compare to an analog chart recorder, because it may not catch the same transient conditions that the analog device will. The smaller the interval, the better a digital logger can catch transients, but the more expensive it is as well. Sometimes the digital loggers have an "event capture" option that will record anomalies - for example the Fluke 1734 does this.

    The most expensive options will be power quality analyzers because they are basically special-purpose oscilloscopes, but if you simply need to record consumption data for estimating the cost of running a device, Onset/Hobo makes dataloggers that are meant for this.

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