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The B+K Precision 2522B 20 MHz Digital Storage/Analog Oscilloscope includes all the basic features needed by most technicians and engineers. Unlike other digital oscilloscopes, it has a full analog mode with infinite resolution. Digital storage modes include refresh, roll, and single sweep. Equivalent time storage techniques allow storage of repetitive waveforms up to 20 MHz. The BK Precision 2522B has two vertical input channels for displaying two waveforms simultaneously. Selectable single trace (either CH 1 or CH 2) or dual trace. Alternate or chop sweep selectable at all sweep rates. Digital Mode Specifications. Storage Word Size: 2048 x 8 bits/channel; (2 k/channel with direct sampling, 1 k/channel with equivalent time sampling). Vertical Resolution: 1 in 256, approximately 25 steps/div. Horizontal Resolution: 1 in 2048, approximately 200 samples/div. Sampling Rate: 10 M samples/sec to 4 samples/sec, reduced in proportion to time base. Direct sampling at time base settings of 20 µs/div and slower, equivalent time sampling at time base settings of 10 µs/div and faster. Equivalent time Sampling Bandwidth: 20MHz for repetitive waveforms. Sweep Speed: 0.1 µs/div to 2 s/div in 1-2-5 sequence, 23 steps. Vernier control provides fully adjustable sweep time between steps. Accuracy: +3% Sweep Magnification: 10X, +6%. Hold off: variable. Triggering Modes: AUTO (free run) or NORM. Source: CH1, CH2, ALT, EXT, LINE. Analog Mode Specifications. Vertical Sensitivity: 5 mV/div to 5 V/div in 1-2-5 sequence, 10 steps. Vernier control provides fully adjustable gain between steps. Pull x5 increases maximum sensitivity to 1 mV/div (at reduced bandwidth). Accuracy: ±3%, ±5% at X5 MAG. Input Resistance: 1 M-ohm ±2%. Input Capacitance: 25 pF ±10 pF. Frequency Response: 5 mV to 5 V/div: DC to 20 MHz (-3 db). x5:DC to 10MHz (-3dB). Rise Time: Approximately 17.5 (Overshoot <= 3%). Maximum Input Voltage: 400 V (DC + AC peak). CRT Display Area: 8 x 10 div (1 div = 1 cm).
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