Home Test Equipment Electrical Testers Voltage Testers 2120B Oscilloscope
BK Precision 30 MHz 2-Trace Scope with Probes
Entry Level Oscilloscope with a 30 MHz Bandwidth
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BK Precision 30 MHz 2-Trace Scope With Probes
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BK Precision's 2120B is a dual trace oscilloscope that can simultaneously display two signals and offer high performance at a low price. The auto sweep feature allows the unit to go back to triggered sweep operation once the adequate trigger is applied. The trigger sweep is an oscilloscope's most important function, because it serves to synchronize the sweep oscillator to the input waveform. |
- Equipped with a 8x10 cm CRT display for easy viewing
- Most comparable products offer 20MHz but this unit offers more advanced technology with a 30MHz bandwidth
- Four sweep modes for versatility and function:
- Sweep only
- Delayed sweep only
- Main sweep
- Delayed sweep sharing or X-Y
- Dual or single trace operation 5 mV/div sensitivity
- AUTO/NORM triggered sweep operation with AC, TVH, TVV and line coupling
- Instead of just knowing there is current, you can actually see how the electrical component is operating via a visible sine wave
- Calibrated 23-step time base with 10x magnifier for accuracy
- Compact low-profile design
- 2- year manufacturer’s warranty
| BK-2120B | |||
|---|---|---|---|
Vertical Amplifiers (CH1 and CH2) |
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| Sensitivity | 5 mV/div to 5 V/div, 1 mV/div to 1 V/div at X5 | ||
| Attenuator | 10 steps in 1-2-5 sequence. Vernier control provides full adjustment between steps | ||
| Accuracy | +-3%, +-5% at X5 | ||
| Input Resistance | 1 MΩ +- 2% | ||
| Input Capacitance | 25 pF +- 10pF | ||
| Frequency Response | 5 mV to 5 V/div: DC to 30MHz (-3 dB). X5: DC to 10 MHz (-3 dB) | ||
| Rise Time | 12 ns (Overshoot <= 5%) | ||
| Operating Modes | CH 1: CH 1, single trace | ||
| CH 2 | CH 2, single trace | ||
| ALT | dual trace, alternating | ||
| CHOP | dual trace, chopped | ||
| ADD | algebraic sum of CH 1 + CH 2 | ||
| Polarity Reversal | CH 2 only | ||
| Maximum Input Voltage | 400 V (DC + AC peak) | ||
Sweep System |
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| Sweep Speed | 0.1 us/div to 2s/div in 1-2-5 sequence, 23 steps. Vernier control provides fully adjustable sweep time between steps | ||
| Accuracy | +-3% | ||
| Sweep Magnification | 10x | ||
Triggering |
|||
| Triggering Modes | AUTO (free run) or NORM, TV-V, TV-H | ||
| Trigger Source | CH 1, CH 2, ALT, EXT, LINE | ||
| Maximum External Trigger Voltage | 300 V (DC + AC peak) | ||
| Trigger Coupling | AC 30 Hz to 30 MHz | ||
| TV H | Used for triggering from horizontal sync pulses | ||
| TV V | Used for triggering from vertical sync pulses | ||
Trigger Sensitivity |
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| Coupling | Bandwith | Int | Ext |
| Auto | 100 Hz - 30 MHz | 1.5 div | 100 mV |
| Norm | DC to 30 MHz | 1.5 div | 100 mV |
| TV V | 20 Hz-1 kHz | 5 div | 100 mV |
| TV H | 1 kHz-100 kHz | 0.5 div | 100 mV |
Horizontal Amplifier (Input through channel 2 imput) |
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| X-Y Mode | Switch selectable using X-Y switch. CH 1: X axis | ||
| CH 2 | Y axis | ||
| Sensitivity | Same as vertical channel 1 | ||
| Input Impedance | Same as vertical channel 1 | ||
| Frequency Response | DC to 1 MHz typical (-3 dB) | ||
| X-Y Phase Difference | Approximately 3" at 50 kHz | ||
| Maximum Input Voltage | Same as vertical channel 1 | ||
CRT |
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| Type | Rectangular with internal graticule | ||
| Display Area | 8x10 div (1 div = 1 cm) | ||
| Accelerating Voltage | 2 kV | ||
| Phosphor | P31 | ||
| Trace Rotation | Electrical, front panel adjustable | ||
Other Specifications |
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| Calibrating Voltage | 1 kHz (+-10%) Positive Square Wave, 2 V p-p (+-3%) | ||
Environmental |
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| Within Specified Accuracy | 50°F to 95°F (10°C to 35°C), <= 85% RH | ||
| Full Operation | 32°F to 104°F (0°C to 40°C), <= 85% RH | ||
| Storage | -4°F to 158°F (-20°C to 70°C) | ||
| Power Requirements | 100/120/220/240 VAC +- 10%, 50/60 Hz, approximately 40 W | ||
| Dimensions | 7"W x 14.5"H x 17.25''D (180 x 370 x 440 mm) | ||
| Weight | Approximately 17.2 lbs. (7.8 kg) | ||
| Warranty | 2-years | ||
Accessories |
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| Supplied | Instruction Manual, Two PR-33A x1/x10 Probes or equivalent, AC Power Cord, Spare Fuse | ||
- BK 2120B Datasheet (PDF)

Please Note: This product ships in 2 weeks
| PART # | DESCRIPTION | DIMENSIONS | WEIGHT | PRICE |
| BK-2120B | BK Precision 30 MHz 2-Trace Scope with Probes | 7"W x 14.5"H x 17.25''D | 17.5 lbs |
MANUALS & USER GUIDES -
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