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Oscilloscopes offer 2M data point record length

Posted: 18 Aug 2010 ?? ?Print Version ?Bookmark and Share

Keywords:oscilloscopes? LCD? USB?

 PDS8102T benchtop oscilloscope

Saelig Company Inc.'s new PDS8102T and PDS8202T benchtop oscilloscopes offer two million data point record length for greater depth investigating fast, intermittent pulses.

The 2ch scopes sample at 1GSps and 2GSps respectively, and have video trigger, auto-measurements, 8in full color LCD display, XY Mode, auto-set, averaging, math functions, USB output and waveform storage.

FFT functionality is included for seeing spectrum information, as well as autoscaling and trigger hold-off. Autoscale can automatically adjust the vertical gain, or the horizontal time base, or both together. This is useful for circuit probing as the probe is moved from point to point on a circuit board, the display auto-adjusts for best trace presentation. It functions in the same manner as 'AutoSet', but instead of being a one-time function, it's active until turned off, keeping the hands free.

FFT allows the viewing of the frequency spectrum of the signal under test. Trigger hold enables the introduction of a delay relative to the trigger point so that a different part of the signal can be seen.

The PDS8102T and PDS8202T oscilloscopes can automatically measure and display frequency and peak-peak/rms/mean values, but cursors can also be moved to make individual readings. A built-in self-calibration facility improves measurement accuracy. Video monitoring is also possible since you can trigger on NTSC/PAL/SECAM line or field waveforms.

They have on-board storage, and USB output, and provide manual cursor measurements, up to 5 automatic measurements, high-speed screen update, storage for up to 4 waveforms & set-up parameters, convenient serial interface with software, 400V (DC+AV peak) maximum input, and an optional rechargeable battery pack

Sensitivity range is 5mV/div~5V/div with maximum display of 50V. Another really useful feature is the ability to store 4 waveforms for comparison with live inputs. A persistence control is available too which simulates old analog scopes to compare slow-moving waveforms with previous scans. X-Y display allows you to see phase changes. A+B and A-B math capability is also included.

- Colin Holland
EE Times

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