The B&K Precision Corp.
889B Synthesized In-Circuit LCR/ESR
Meter is a high accuracy test instrument used for measuring
inductors, capacitors and resistors with a basic accuracy of
0.1%. Also, with the built-in functions of DC/AC
Voltage/Current measurements and Diode/Audible Continuity
checks, the
889B can not only help engineers and students to
understand the characteristics of electronics components but
also being an essential tool on any service bench.
The
889B is defaulted to auto ranging. However, it can be
set to auto or manual ranging by pressing the Range Hold
key. When LCR measurement mode is selected, one of the test
frequencies, 100 Hz, 120 Hz, 1 KHz, 10 KHz, 100 KHz or 200
KHz, may be selected on all applicable ranges. One of the
test voltages, 50mVrms, 0.25 Vrms, 1 Vrms or 1 VDC (DCR
only), may also be selected on all applicable ranges. The
dual display feature permits simultaneous measurements. When
DC/AC voltage/current measurement mode or the Diode/Audible
Continuity Check mode is selected, only the secondary
display will be used to show the result of the measurement.
The highly versatile
889B can perform virtually all the
functions of most bench type LCR bridges. With a basic
accuracy of 0.1%, this economical
LCR Meter may be
adequately substituted for a more expensive LCR bridge in
many situations. Also, with the basic accuracy of 0.4% in
voltage and current measurements, the
889B performs the
functions of a general purpose Digital Multi-Meter and can
be used to replace the DMM on a service bench.
The
889B has applications in electronic engineering labs,
production facilities, service shops, and schools. It can be
used to check ESR values of capacitors, sort and/or select
components, measure unmarked and unknown components, and
measure capacitance, inductance, or resistance of cables,
switches, circuit board foils, etc.
The key features are as following:
1. Voltage Measurements:
• AC : True RMS, up to 600Vrms @ 40 ~ 1K Hz
• DC : up to 600V
• Input Impedance : 1M-Ohm
2. Current Measurements:
• AC : True RMS, up to 2Arms @ 40 ~ 1K Hz
• DC : up to 2A
• Current Shunt : 0.1 Ohm @ > 20mA; 10 Ohm @ < 20mA
3. Diode/Audible Continuity Checks:
• Open Circuit Voltage: 5Vdc
• Short Circuit Current: 2.5mA
• Beep On: < 25 Q
• Beep Off: > 50 Q
4. LCR Measurements:
• Test conditions
Frequency : 100Hz/120Hz/1KHz/10KHz/100KHz/200KHz Level :
1Vrms / 0.25Vrms / 50mVrms / 1VDC (DCR only)
• Measurement Parameters : Z, Ls, Lp, Cs, Cp, DCR, ESR, D, Q
and 0
• Basic Accuracy : 0.1%
• Dual Liquid Crystal Display
• Auto Range or Range Hold
• USB
Interface Communication
• Open/Short Calibration
• Primary Parameters Display:
Z : AC Impedance DCR : DC Resistance Ls : Serial Inductance
Lp : Parallel Inductance
Cs : Serial Capacitance Cp : Parallel Capacitance
• Second Parameter Display:
0 : Phase Angle
ESR : Equivalence Serial Resistance
D : Dissipation Factor
Q : Quality Factor
• Combinations of Display:
Serial Mode : Z -0, Cs - D, Cs - Q, Cs - ESR, Ls - D, Ls -
Q, Ls - ESR Parallel Mode : Cp - D, Cp - Q, Lp - D, Lp - Q
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