PicoScope 7 Software
Available on Windows, Mac and Linux
Oscilloscope Ihput Resistance Tempco
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empower_spc
- Newbie
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- Joined: Mon Mar 01, 2021 6:21 pm
Oscilloscope Ihput Resistance Tempco
I own and love a PicoScope 4444, a truly differential-input model. We're using this scope to measure electrical power with exquisite precision. The 4444 is certainly capable of it!
The probes I've designed invest in resistors with 0.1% precision and a temperature coefficient of 10 ppm / 'C. They're expensive, and if the scope itself has worse tolerance, it's sort of a waste.
The input resistance of the Model 4444 is specified as 1 meg ohm. Where could I find information about what to expect for the temperature coefficient of the scope's input resistance? Is it 10 ppm/'C or 500 ppm/'C?
The probes I've designed invest in resistors with 0.1% precision and a temperature coefficient of 10 ppm / 'C. They're expensive, and if the scope itself has worse tolerance, it's sort of a waste.
The input resistance of the Model 4444 is specified as 1 meg ohm. Where could I find information about what to expect for the temperature coefficient of the scope's input resistance? Is it 10 ppm/'C or 500 ppm/'C?
Re: Oscilloscope Ihput Resistance Tempco
Please email support@picotech.com for this request and provide them with details of your probe and whether you are using the single or double BNC to 9 way adapter. The team will then be able to discuss this in detail with the engineering team.
Martyn
Technical Support Manager
Technical Support Manager