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5 (1 Review) | Catalog: TA197 | Model: Pico TA197
Divide by 10 attenuator
List Price: $71.11
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With high bandwidth and fault protection, the 10:1 attenuator allows you to measure fuel injector and primary ignition waveforms using PicoScope oscilloscopes. The TA197 is a passive 10:1 attenuator. This means that, for example, a 10 V signal at its input appears as a 1 V signal on its output. It allows voltages of up to 400 V at its input. It is designed for ground-referenced signals only, as it attenuates the signal path but not the ground path. The TA197 attenuator also increases the input impedance of the oscilloscope from 1 MΩ to 8 MΩ, so can be used when measuring the output of high-impedance sensors such as piezo knock sensors where connecting an automotive scope can attenuate the signal or induce a fault code. Note: When using a PicoScope 4225 or 4425 oscilloscope, the attenuator is not normally needed for measuring injectors as the voltage spike is usually under 200 V. It will be required, however, when using older generations of PicoScopes that measure to only 50 V or 100 V. The 10:1 attenuator is an improved version of the 20:1 attenuator previously available from Pico.
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5.0
Needed to reduce signal voltage from 60-50V to prevent damaging the picoscope, so far this seems to be effective.
Jordan Clark on Dec 08, 2020 I found this helpful (0)