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The BK Precision 2190E is a 100 MHz two-channel digital storage oscilloscope designed to combine performance and value in a portable bench instrument. With a 1 GSa/s single-channel real-time sampling rate, record lengths up to 40,000 points, and a 7-inch 800x480 TFT color display, the 2190E offers a significantly larger viewing area than typical economy oscilloscopes in the 5.7-inch class.
Per the datasheet, the 2190E is positioned for applications in education, design and debug, and service and repair. A dedicated EDU mode allows educators to disable the Auto setup button, Measure menu, and Cursors menu — useful for instructional environments where students must work through measurements manually. The instrument supports 12 different user-interface languages and includes context-sensitive help.
BK Precision was founded in Chicago in 1951 and has operated for over seven decades as a manufacturer of test and measurement instruments for education, service, and engineering applications. The company is headquartered in Yorba Linda, California and remains an active T&M brand under its original name.
| Category | Specification | Value |
|---|---|---|
| Performance Characteristics | ||
| Bandwidth | 100 MHz | |
| Real Time Sampling Rate | Single Channel: 1 GSa/s; Dual Channel: 500 MSa/s (for timebase faster than 250 ns/div) | |
| Channels | 2 | |
| Rise time | < 3.5 ns | |
| Record Length | 40,000 points when timebase is 2.5 ns to 50 ns (20,000 points for 100 ns to 50 ms timebase), 20,000 points for dual channel operation | |
| Vertical Resolution | 8 bit | |
| Vertical Sensitivity | 2 mV/div - 10 V/div (1-2-5 order) | |
| DC Gain Accuracy | <±3.0%: 5 mV/div to 10 V/div in fixed gain ranges; <±4.0%: 2 mV/div in variable gain ranges | |
| Maximum input voltage | 400 V (DC+AC pk-pk, 1 MΩ input impedance, X10), CAT I | |
| Position Range | 2 mV - 200 mV: ±1.6 V; 206 mV - 10 V: ±40 V | |
| Horizontal Scan Range | 2.5 ns/div - 50 s/div; Scan mode: 100 ms/div - 50 s/div (1 - 2.5 - 5 sequence) | |
| Timebase Accuracy | ±50 ppm measured over 1 ms interval | |
| Input Coupling | AC, DC, GND | |
| Input Impedance | 1 MΩ ±2% || 16 pF ±3 pF | |
| Vertical and Horizontal Zoom | Vertically or horizontally expand or compress a live or stopped waveform | |
| I/O interface | USB host port on front panel supports USB flash drives, LAN, and USB (USBTMC-compliant) device port for connection to PC, Pass/Fail output | |
| Acquisition Modes | ||
| Sample | Display sample data only | |
| Peak Detect | Capture the maximum and minimum values of a signal | |
| Average | Waveform averaged, selectable from 4, 16, 32, 64, 128, 256 | |
| Scan Mode | For time base settings 0.1 s/div - 50 s/div | |
| Trigger System | ||
| Trigger Types | Edge, Pulse Width, Video*, Slope, Alternating. *Support signal Formats: PAL/SECAM, NTSC. Trigger condition: odd field, even field, all lines, or line number | |
| Trigger Modes | Auto, Normal, Single | |
| Trigger Coupling | AC, DC, LF reject, HF reject | |
| Trigger Source | CH1, CH2, EXT, EXT/5, AC Line | |
| Pulse Width Trigger | Trigger Modes: (>,<,=) Positive Pulse Width, (>,<,=) Negative Pulse Width | |
| Slope Trigger | (>,<,=) Positive slope, (>,<,=) Negative slope; Time: 20 ns - 10 s | |
| Hardware Frequency Counter | ||
| Reading Resolution | 1 Hz | |
| Accuracy | ±0.01% | |
| Range | DC Couple, 10 Hz to 100 MHz | |
| Signal Types | All trigger signals (except pulse width trigger and video trigger) | |
| Waveform Math and Measure | ||
| Math operation | Add, Subtract, Multiply, Divide, FFT | |
| FFT | Window mode: Hanning, Hamming, Blackman, Rectangular; Sampling points: 1024 | |
| Measure | Vpp, Vmax, Vmin, Vamp, Vtop, Vbase, Vavg, Mean, Crms, Vrms, ROV, FOV, RPRE, FPRE, FREQ, Period, Rise Time, Fall Time, BWid, +Wid, -Wid, +Duty, -Duty, Phase, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF | |
| Display System | ||
| Display | 7 in. Color TFT, 800 x 480 resolution, 64K color | |
| Display Contrast (Typical state) | 150:1 | |
| Backlight Intensity (Typical state) | 300 nit | |
| Display Area | 8 x 18 div | |
| Display Mode | Dots, Vector | |
| Persistence | Off, 1 sec, 2 sec, 5 sec, Infinite | |
| Menu Display Timer | 2 sec, 5 sec, 10 sec, 20 sec, Infinite | |
| Screen-Saver | Off, 1 min, 2 min, 5 min, 10 min, 15 min, 30 min, 1 hour, 2 hour, 5 hour | |
| Waveform Interpolation | Sin(x)/x, Linear | |
| Display Color Mode | Normal, Invert | |
| Environment | ||
| Temperature | Operating: 50°F to 104°F (10°C to 40°C); Not operating: -4°F to 140°F (-20°C to 60°C) | |
| Humidity | Operating: 85% RH, 104°F (40°C); Not operating: 85% RH, 149°F (65°C) | |
| Altitude | Operating: 9,842 ft (3,000 m); Not operating: 50,085 ft (15,266 m) | |
| Electromagnetic Compatibility | EMC Directive 2004/108/EC, EN61326:2006 | |
| Safety | Low voltage directive 2006/95/EC, EN61010-1:2001 | |
| General | ||
| AC Input | 100-240 VAC, CAT II, 50 VA max, 45 Hz to 440 Hz | |
| Dimension (WxHxD) | 12.7 x 5.35 x 5.24 inches (323 x 136 x 157 mm) | |
| Weight | 5.5 lbs. (2.5 kg) | |
| Warranty | One-Year Warranty |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
B&K
Condition
New
Manufacturer
B&K Precision
Channels
2
Frequency
100 MHz
Record length
40 kPts
Sampling rate
1 GS/s
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