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BK 2120B Oscilloscope 2-Trace Scope w/Probes 30 MHz
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BK 2120B
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Features:
- Dual or single trace operation
- 5 mV/div sensitivity
- AUTO/NORM triggered sweep operation with AC, TVH, TVV and line coupling
- Compact low profile design
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Description
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B+K Precision's model 2120B is a dual trace oscilloscope that offers high performance at a low price. Most competitor's entry level oscilloscopes have a 20 MHz bandwidth, while B+K Precision's models 2120B has a bandwidth of 30 MHz. This oscilloscope is built by and backed by B+K Precision, a company that has been selling reliable, durable, value priced test instruments for over 50 years.
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 2120B |
30 MHz 2-Trace Scope With Probes |
$549.00 |
| $389.00 |  |
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| Model |
Accessories |
List Price |
Sale Price |
| LC 210A |
Oscilloscope and Spectrum Analyzer Carrying Case |
| $97.00 | |
|
| PR 37AR |
PR 37AR Deluxe 10:1 Red Probe |
| $48.00 | |
|
| AD 110 |
Insulated BNC - 4mm Safety Jack - Discontinued - no replacement |
| CC 110 |
Insulated BNC - BNC Cable, Black - Discontinued - no replacement |
| CC-25 |
BNC / N Adapter Kit |
| $101.00 | |
|
| CC-41A |
BNC to BNC, RG58C/U, 36" |
| $10.40 | |
|
| PR 100A |
PR100A x100 Probe f/All Scopes |
| $64.00 | |
|
| PR 15K |
15KV 5 MHz OSCILLOSCOPE PROBE - Discontinued - no replacement |
| PR 2000 |
200 MHz 2kV Oscilloscope High Voltage Probe |
| $114.00 | |
|
| PR 32A |
RF Detect/Demodular Probe |
| $62.00 | |
|
| PR 33A |
10:1/Direct 90 MHz Scope Probe |
| $35.00 | |
|
| PR 37AG |
PR 37AG Deluxe 10:1 Gray Probe |
| $48.00 | |
|
| PR 4000 |
100 MHz 4KV Oscilloscope High Voltage Probe - Discontinued - no replacement |
| PR 46A |
250 MHz 10:1 Deluxe Probe |
| $67.60 | |
|
| PR-50 |
Oscilloscope Probe Set, 3 pieces - x1/x100/Switchable |
| $110.00 | |
|
| PR-55 |
High-Voltage Oscope Probe, 10kV, 50MHz |
| $329.00 | |
|
| PR-60 |
Active Differential Probe, x10/x100 |
| $379.00 | |
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| TE 26 |
2615/20/25/30 Feed Thru 50 Ohm |
| $46.80 | |
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Specifications
| VERTICAL AMPLIFIERS (CH 1 and CH 2) |
| 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 M +- 2% |
| Input Capacitance |
25 pF +- 10pF |
| Frequency Response |
5 mV to 5 V/div: DC to 30 MHz (-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 |
| 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 |
| Coupling |
Bandwidth |
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 |
.5 div |
100 mV |
| HORIZONTAL AMPLIFIER (Input through channel 2 input) |
| 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 |
| 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 |
| Calibrating Voltage |
1 kHz (+-10%) Positive Square Wave, 2 V p-p (+-3%) |
| ENVIRONMENT |
| Within Specified Accuracy |
50 0 to 95 0 F (10 0 to 35 0 C), <= 85% RH |
| Full Operation |
32 0 to 104 0 F (0 0 to 40 0 C), <=85% RH |
| Storage |
-4 0 to 158 0 F (-20 0 to +70 0 C) |
| Power Requirements |
100/120/220/240 VAC +- 10%, 50/60 Hz, approximately 40 W |
| Dimensions (WxHxD) |
7x14.5x17.25" (180 x 370 x 440 mm) |
| Weight |
Approximately 17.2 lbs. (7.8 kg) |
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