B+K Precision BK89x Series Bench LCR Meters
Benefits of the BK891, BK894, BK895 Precision LCR Meters
- 0.05% best impedance accuracy.
- Selectable test levels depending on model.
- Adjustable measurement speed for fast readout or better accuracy.
B+K Precision BK89x Series Bench LCR Meters
The B+K Precision BK891, BK894 and BK895 are high accuracy LCR meters capable of measuring inductance, capacitance, and resistance of components and materials at DC or from 20 Hz to 300 kHz, 500 kHz or 1 MHz. These LCR meters provide flexible AC and DC test signal configuration. The vivid 4.3-inch/10.9 cm TFT LCD offers a clear view of all measured and setting values along with BIN sorting comparator results. With a basic accuracy of 0.05%, auto level control (ALC, BK894/BK895 only) and many other versatile features, these meter are perfect tools for R&D, manufacturing and quality control applications
- Bench LCR meter series.
- Various AC test signal voltages, see chart below.
- Test frequencies 20 Hz...300 kHz, 500 kHz or 1 MHz.
- 0.05% best impedance accuracy.
- Standard USB and LAN interface for remote control with SCPI commands.
- Model BK891:
- Adjustable measurement speed for fast readout or better accuracy.
- 300-point linear and logarithmic sweep function.
- Bin sorting function (9 primary, 1 secondary, and 1 out-of-spec bin).
- Save/recall up to 100 setups (10 internal) including 1000 measurements and screenshots.
- Models BK894, BK985:
- 3 AC current ranges, selectable via 30 Ω, 50 Ω or 100 Ω internal AC impedance. The 30 Ω setting provides up to 66.7 mARMS of drive current, sufficient for larger inductors and transformers.
- Built-in DC bias source adjustable from -5...+5 V/-50...+50 mA.
- Fast measurement speed up to 13 ms/reading to increase manufacturing throughput.
- 201-point programmable list sweep function providing ability to sweep frequency, AC and DC bias voltage/current levels.
- Auto-level control to maintain the measurement signal applied to the DUT at a constant level.
- Test signal voltage and current monitoring.
- BIN comparator function to sort components in up to 10 bin locations.
- 1 m and 2 m cable compensation.
- 4-terminal fixture and Kelvin clip test leads included.
- Transformer test function with optional transformer test fixture TL89T1.
- Versatile trigger functionality (internal, external, bus and manual).
Model Overview
| Model | Test frequency | Best accuracy | Test voltage levels | Measurement parameters | Interfaces |
| BK891 | 20 Hz...300 kHz | 0.05% | 0.5 VRMS, 1 VRMS | L, C, R, G, B, Y, D, Q, θ, DCR | USB, LAN, GPIB |
| BK894 | 20 Hz...500 kHz | 0.05% | 5 mVRMS...100 mVRMS, 100 mVRMS...1 VRMS, 1 VRMS...2 VRMS (auto level control off); 10 mVRMS...1 VRMS (auto level control on) | L, C, R, G, B, X, Y, Z, Q, D, θ, DCR (range 0.01 Ω...100 MΩ) | USB, LAN, RS232 |
| BK895 | 20 Hz...1 MHz | 0.05% | 5 mVRMS...100 mVRMS, 100 mVRMS...1 VRMS, 1 VRMS...2 VRMS (auto level control off); 10 mVRMS...1 VRMS (auto level control on) | L, C, R, G, B, X, Y, Z, Q, D, θ, DCR (range 0.01 Ω...100 MΩ) | USB, LAN, RS232, GPIB |
Included: LCR meter BK 891, 894 or 895, user manual, power cord, Kelvin clips, certificate of calibration and test report. Additional for BK894/895: 4-terminal test fixture, shorting bar.
