BK Precision 2120 20MHz Dual Trace Oscilloscope
The BK Precision 2120 is a 12 MHz function generator, offering sine, square, triangle, and TTL waveforms with adjustable amplitude, DC offset, and duty cycle. It features a large LCD display for clear indication of parameters and waveform settings. Ideal for educational and hobbyist applications.
- Model
- BK Precision 2120
- Calibration
- Available on request
- Price
- $325
- Status
- In stock
- RFQ ref
- 2120
This unit
The BK Precision 2120 is a dual-trace analog oscilloscope. It has a bandwidth of 30 MHz and a sensitivity of 5 mV/div to 5 V/div. The instrument features AUTO/NORM triggered sweep operation with AC, TVH, TVV, and line coupling. It has a compact, low-profile design and is cUL certified. The BK Precision 2120 is built by B&K Precision, a company with over 50 years of experience in providing test instruments.
Technical 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 MAG
- Attenuator: * 10 calibrated steps in a 1-2-5 sequence * Vernier control provides full adjustment between steps
- Accuracy: * ±3% (5 mV/div to 5 V/div) * ±5% (at X5 MAG)
- Input Resistance: 1 MΩ ±2%
- Input Capacitance: 25 pF ±10 pF
- Frequency Response: * 5 mV/div to 5 V/div: DC to 30 MHz (-3 dB) * X5 MAG: 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 µs/div to 2 s/div in a 1-2-5 sequence, 23 steps * Vernier control provides fully adjustable sweep time between steps
- Accuracy: ±3%
- Sweep Magnification: 10x (±10%) 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 Horizontal Amplifier (Input through Channel 2 input) * X-Y Mode: Switch selectable using X-Y switch * CH 1: Y-axis * CH 2: X-axis
- Sensitivity: Same as vertical channel 2
- Accuracy: * Y-Axis: ±3% * X-Axis: +6%
- Input Impedance: Same as vertical channel 2
- Frequency Response: DC to 2 MHz typical (−3 dB) (to 6 divisions horizontal deflection)
- X-Y Phase Difference: Approximately 3° at 50 kHz Other Specifications * Cal/Probe Compensation Voltage: 2 V p-p ±3% square wave, 1 kHz nominal
- CH 2 (Y) Output (Model 2125A): Output Voltage: 50 mV/div (nominal into 50 ohm load)
- Power Requirements: 100/120/220/240 VAC ±10%, 50/60 Hz, approximately 40 W
- Dimensions: 132 x 324 x 398 mm (5.2″ x 12.8″ x 15.7″)
- Weight: 7.6 kg (16.8 lbs)
- Environmental: * Within Specified Accuracy: +10° to +35° C, 10–80% relative humidity * Full Operation: 0° to +50° C, 10–80% relative humidity * Storage: −30° to +70° C, 10–90% relative humidity Supplied Accessories * Two Probes
- Schematic Diagram and Parts List
- AC Power Cord Why Choose Aumictech for BK Precision 2120? At Aumictech, we specialize in supplying test and measurement equipment. Whether you need reliable dual-trace oscilloscopes, precise signal analysis, or solid troubleshooting tools, our team ensures the BK Precision 2120 delivers maximum performance for your application.
BK Precision 2120 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the BK Precision 2120. Calibration covers output frequency accuracy, output amplitude accuracy at 50 ohm and Hi-Z load, DC offset accuracy, symmetry and duty cycle accuracy, and arbitrary waveform sample rate accuracy. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common BK Precision 2120 faults: BNC output connector wear, output amplifier failure from short-circuit drive, display and keypad membrane switch wear, DDS or DAC failure on 33250A. HP 33120A and Agilent 33220A most common fault is BNC output connector wear from repeated cable insertions. Output amplifier failure on the HP 33120A typically results from sustained short-circuit drive. Agilent 33250A DDS and high-speed DAC failures are rare but require component-level repair and post-repair amplitude verification across the full 80 MHz range.
BK Precision 2120 price
This BK Precision 2120 is listed at $325. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
BK Precision 2120 calibration cost
NIST-traceable calibration for the BK Precision 2120 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output amplitude accuracy at 50 ohm and Hi-Z load, DC offset accuracy, symmetry and duty cycle accuracy, and arbitrary waveform sample rate accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →
