N2862A passive oscilloscope probe data sheet characteristics operating temperature 0 c to 50 c, 80% rh storage temperature 0 c to 50 c, 80% rh cable length 1.2 m bandwidth dc to 150 mhz risetime 2.33 ns attenuation ratio 10:1 input resistance 10 m? (when terminated into 1 m?) input capacitance 12 pf maximum input 300-v rms compensation 5-30 pf safety conformance to iec-1010
2 compensation adjustments the probes can be adjusted for low- frequency compensation and high- frequency compensation. for the best measurements you should compensate your probe to match its characteristics to the oscilloscope. a poorly compensated probe can introduce measurement errors. low- frequency compensation should be performed before performing high- frequency compensation. low-frequency compensation 1. connect the probe from the appropriate oscilloscope channel to 1-khz square wave source. 2. press autoscale. adjust the oscilloscope to display two to three cycles of the waveform over two to six vertical divisions. 3. set the low-frequency compensation adjustment on the probe for the flattest pulse possible (see figure 2). high-frequency compensation 1. using the bnc adapter, connect the probe to a square wave generator operating between 10-khz and 1-mhz, and terminated into 50-?. 2. press autoscale. adjust the oscilloscope to display one cycle of the waveform over two to six vertical divisions. 3. set the high-frequency compensation adjustment on the probe for the flattest, most square, and most horizontal pulse possible (see figure 4). figure 3. high-frequency compensation adjustment. incorrect incorrect correct figure 2. incorrect incorrect correct figure 4. figure 1. low-frequency compensation adjustment. low-frequency adjustment high-frequency adjustment
3 10 khz 100 khz 1 mhz 10 mhz 100 mhz 1 ghz 700 600 400 500 100 200 300 0 figure 5. voltage derating curve accessory kit item description quantity 1 retractable hook 1 2 adjustment tool 1 3 insulating cap 1 4 ic insulating cap 1 5 identification tags (green,yellow, purple and pink) 2 ea 6 probe tip 1 7 ground spring 1 8 bnc adapter 1 9 ground lead (black 12 cm) 1 1 2 3 4 5 6 7 8 9
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