B&K Precision 889B User Manual

INSTRUCTION MANUAL

v092711

Model 889B Bench LCR/ESR Meter with Component Tester

1. Introduction

1.1 General

The B&K Pr ecisio n Corp. 889B Synthesized In-Circ uit LCR/ESR M eter is a high a ccurac y test instrum ent 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 under s tand the c h arac ter ist ic s 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 k ey. W hen LCR m easurement m ode is selected, one of the test frequenc ies, 100 Hz, 120 H z, 1 KHz, 10 KHz, 100 KHz or 200 KHz, may be selec ted on all a pplicabl e ranges. One of the test voltages, 50m Vrms, 0.25 Vrms, 1 Vrms or 1 VDC (DCR only), m ay also be selected on all applicable ranges . The dual display feat ure permits simultaneous measur ements. When DC/AC voltage/current measurement m ode 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 t he functions of most bench t ype LCR bridges . W ith 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 va lues of capacitors, sor t and/or select com ponents, measure unm arked and unknow n 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 Ω  Beep Off: ≥ 50 Ω

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 θ  Basic Accuracy : 0.1%  Dual Liquid Crystal Display  Auto Range or Range Hold  USB Interface Communication  Open/Short Calibrat io n  Primary Parameters Display:

Z : AC Impedance DCR : DC Resistance Ls : Serial Inductance Lp : Parallel Inductance

4

Cs : Serial Capacitance

( )

Ohm

Reactance

Resistance

Impedance

=Ω

=

−

==

+==

Ω∠=+=



 





 



S

X

R

Z

s

R

s

X

TanSinZ

s

X

s

X

s

RZCosZ

s

R

Z

s

jX

s

RZ

1

22

θθ

θ

s

X

s

R

( )

sX,RZ

s

Z

θ

Imaginary Axis

Real Axis

Figure 1.1

fCC

C

X

fLL

L

X

πω

2

11

2====

Cp : Parallel Capacitance

 Second Parameter Display:

θ : Phase Angle ESR : Equivalence Serial Resistance D : Dissipation Factor Q : Quality Factor

 Combinations of Display:

Serial Mode : Z –θ, Cs – D, Cs – Q, Cs – ESR, Ls – D, Ls – Q, Ls – ESR Parallel Mode : Cp – D, Cp – Q, Lp – D, Lp – Q

1.2 Impedance Parameters

Due to the different testing signals on the impedance measurement instrument, there are DC and AC impedances. The common digital multi-meter can only measure the DC impedance, but the 889B can do both. It is very important to understand the impedance parameters of the electronic components.

When we analysis the impedance by the impedance measurement plane (Figure 1.1), it can be visualized by the real element on the X -axis and the im aginary element on t he y-axis. This im pedance meas urement plane can also be seen as the polar coordinates. The Z is the magnitude and θ is the phase of the impedance.

There are two different types of reactance: Inductive (XL) and Capacitive (XC). It can be defined as follows:

L = Inductance (H) C = Capacitance (F) f = Frequency (Hz)

Also, there are Quality factor (Q) and the Dissipation factor (D) that need to be discussed. For component, the Quality factor serves as a measurement of the reactance purity. In the real world, there is always some associated resistance that dissipates power, decreasing the amount of energy that can be recovered. The Quality factor can be defined as t he ratio of the stored ener gy (r eactance) and the d issipated energ y (resistance). Q is generally used for inductors and D for capacitors.

5

p

R

p

C

p

L

p

R

p

X

p

R

G

B

sRs

C

s

R

s

L

s

R

s

X

D

Q

ω

δ

===

=

===

==

1

tan

11

Figure 1.2

Real and imaginary componen ts are serial

ss

jXRZ +=

Real and imaginary components are parallel

G=1/R

jB=1/jX

jBGY +=

jX

R

P

jX

1

P

R

1

Y +=

There are two types of the c ircuit mode, the ser ies mode and the parallel m ode. See Figure 1 .2 to find out the relationship of the series and parallel modes.

Rs jX

s

p

1.3 Specification

 Measuring Range:

Parameter Range

Z 0.000 Ω to 500.0 MΩ L 0.030 µH to 9999 H

C 0.003 pF to 80.00 mF DCR 0.000 Ω to 500.0 MΩ ESR 0.000 Ω to 9999 Ω

D 0.000 to 9999

Q 0.000 to 9999

θ -180.0 ° to 180.0 °

Voltage/Current Measurements V 0.0 mV to +/- 600 V A 0.000 mA to +/- 2 A

 Accuracy (Ae):

1. DC Voltage Measurement: Range : 2V, 20V, 200V, and 600V Resolution : 1mV, 10mV, 100mV, and 1V Accuracy : +/- (0.4% + 3 digits) Input Impedance : 1 M-Ohm

6

2. AC Voltage Measurement (True RMS):

2

1 Dx+

Range : 2V, 20V, 200V, and 600V Resolution : 1mV, 10mV, 100mV, and 1V Accuracy : +/- (0.8% + 5 digits) Input Impedance : 1 M-Ohm

3. DC Current Measurement: Range : 2mA, 20mA, 200mA, and 2000mA Resolution : 1uA, 10uA, 100uA, and 1mA Accuracy : +/- (0.4% + 3 digits) Current Shunt : 0.1 Ohm @ >20mA, 10 Ohm @ ≤20mA

4. AC Current Measurement (True RMS): Range : 2mA, 20mA, 200mA, and 2000mA Resolution : 1uA, 10uA, 100uA, and 1mA Accuracy : +/- (0.8% + 5 digits) Current Shunt : 0.1 Ohm @ >20mA, 10 Ohm @ ≤20mA

Note: The accuracy of DC/AC voltage/current measurements is only applied when in 5% - 100% of the range.

5. LCR Measurement:

Z Accuracy (Ae):

|Zx|

Freq. DCR 2% ±1 100Hz 120Hz 1KHz 10KHz 5% ±1  2% ±1

100KHz 200KHz



20M ~

10M

(Ω)



NA 5% ±1 2% ±1 1% ±1 0.4% ±1 1% ±1 2% ±1 5% ±1

10M ~

1M

(Ω)

1% ±1 0.5% ±1 0.2% ±1 0.1% ±1 0.2% ±1 0.5% ±1 1% ±1

1M ~ 100K

(Ω)

100K ~

10K

(Ω)

10K ~

Note:

1. The accuracy applies when the test level is set to 1Vrms.

2. Ae multiplies 1.25 when the test level is set to 250mVrms.

3. Ae multiplies 1.50 when the test level is set to 50mVrms.

4. When measuring L and C, multiply Ae by

 : Ae is applied only when the test level is set to 1Vrms.

if the Dx＞0.1.

1K

(Ω)

1K ~ 100

(Ω)

100 ~ 1

(Ω)

1 ~ 0.1

(Ω)



7

C Accuracy:

NA

100Hz

79.57pF |

159.1pF

159.1pF |

1.591nF

1.591nF |

15.91nF

15.91nF |

159.1uF

159.1nF |

1.591uF

1.591uF |

15.91uF

15.91uF |

1591uF

|

15.91mF

120Hz

1KHz

10KHz

100KHz



2% ± 1



66.31pF |

132.6pF

2% ± 1



7.957pF |

15.91pF

2% ± 1



0.795pF |

1.591pF

5% ± 1



NA 0.159pF

1% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1 1% ± 1

132.6pF

1.326nF

1% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1

15.91pF

159.1pF

1% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1

1.591pF

15.91pF 2% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1

1.591pF 5% ± 1 2%± 1 1%± 1 0.4%± 1 1%± 1 2%± 1 5% ± 1

|

1.326nF |

13.26nF

159.1pF |

1.591nF

15.91pF |

159.1pF

1.591pF |

15.91pF

13.26nF |

132.6nF

1.591nF |

15.91nF

159.1pF |

1.591nF

15.91pF |

159.1pF

132.6nF |

1.326uF

15.91nF |

159.1nF

1.591nF |

15.91nF

159.1pF |

1.591nF

1.326uF |

13.26uF

159.1nF |

1.591uF

15.91nF |

159.1nF

1.591nF |

15.91nF

13.26uF |

1326uF

1.591uF |

159.1uF

159.1nF |

15.91uF

15.91nF |

1.591uF



1326uF

|

13.26mF 1% ± 1



159.1uF |

1.591mF 1% ± 1



15.91uF |

159.1uF

1% ± 1



1.591uF |

15.91uF

200KHz



L Accuracy:

100Hz

120Hz

1KHz

NA 0.079pF

0.795pF 5% ± 1 2%± 1 1%± 1 0.4%± 1 1%± 1 2%± 1 5% ± 1

31.83KH |

15.91KH

2% ± 1



26.52KH |

13.26KH

2% ± 1



3.183KH |

1.591KH

2% ± 1



15.91KH

1591H

1% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1

13.26KH

1326H

1% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1

1.591KH

159.1H

1% ± 1 0.5% ± 1 0.2% ± 1

0.795pF

|

7.957pF

1591H

|

159.1H

1326H

|

132.6H

159.1H |

15.91H

7.957pF |

79.57pF

159.1H |

15.91H

132.6H |

13.26H

15.91H |

1.591H

79.57pF |

795.7pF

15.91H |

1.591H

13.26H |

1.326H

1.591H |

159.1mH

0.1% ± 1 0.2% ± 1

795.7pF |

7.957nF

1.591H |

159.1mH

1.326H |

132.6mH

159.1mH |

15.91mH

7.957nF |

795.7nF

159.1mH |

1.591mH

132.6mH |

1.326mH

15.91mH |

159.1uH

0.5% ± 1

795.7nF |

7.957uF

1.591mH |

159.1uH 1% ± 1



1.326mH |

132.6uH 1% ± 1



159.1uH

|

15.91uH 1% ± 1



8

10KHz

NA

100K ~

318.3H |

159.1H

5% ± 1



159.1H |

15.91H

2% ± 1 0.5% ± 1 0.2% ± 1 0.1% ± 1 0.2% ± 1 0.5% ± 1

15.91H |

1.591H

1.591H |

159.1mH

159.1mH |

15.91mH

15.91mH |

1.591mH

1.591mH |

15.91uH

15.91uH |

1.591uH

1% ± 1



100KHz



200KHz



D Accuracy:

31.83H |

15.91H

15.91H |

7.957H

|Zx|

Freq.

100Hz ±0.020  ±0.010 ±0.005 ±0.002 ±0.002 ±0.002 ±0.005 ±0.010 120Hz

1KHz

10KHz ±0.050  ±0.020

15.91H |

1.591H

5% ± 1 2%± 1 1% ± 1 0.4% ± 1 1% ± 1 2%± 1 5% ± 1

7.957H |

795.7mH 5% ± 1 2%± 1 1% ± 1 0.4% ± 1 1% ± 1 2%± 1 5% ± 1

20M ~

10M

(Ω)

1.591H |

159.1mH

795.7mH |

79.57mH

10M ~

1M

(Ω)

159.1mH

15.91mH

79.57mH

7.957mH

1M ~ 100K

(Ω)

|

10K

(Ω)

15.91mH |

1.591mH

7.957mH |

795.7uH

10K ~

1K

(Ω)

1.591mH

159.1uH

795.7uH

79.57uH

1K ~

100

(Ω)

|

100 ~ 1

(Ω)

159.1uH |

1.591uH

79.57uH |

0.795uH

1 ~ 0.1

(Ω)



1.591uH |

0.159uH

0.795uH |

0.079uH

θ Accuracy:

100KHz 200KHz



|Zx|

Freq.

100Hz ±1.046  ±0.523 ±0.261 ±0.105 ±0.105 ±0.105 ±0.261 ±0.523 120Hz

1KHz

10KHz ±2.615

100KHz 200KHz



NA ±0.050 ±0.020 ±0.010 ±0.004 ±0.010 ±0.020 ±0.050

20M ~

10M

(Ω)



NA ±2.615 ±1.046 ±0.409 ±0.209 ±0.409 ±1.046 ±2.615

10M ~

1M (Ω)

±1.046

1M ~ 100K

(Ω)

10K

(Ω)

10K ~

1K

(Ω)

1K ~

100

(Ω)

100 ~ 1

(Ω)

1 ~ 0.1

(Ω)



9

Z Accuracy:

1

2

1 Dx+

Ω=

−

⋅⋅⋅⋅

=

⋅⋅⋅

=

1590

9

10100

3

102

1

2

1

π

Cxf

Zx

LxfZx ⋅⋅⋅=

π

2

1 Dx+

Ω=

−

⋅⋅⋅=

⋅⋅⋅

=

283.6

3

10

3

102

2

π

LxfZx

As shown in table 1.

C Accuracy:

=

π

2

CAe = Ae of C f : Test Frequency (Hz) Cx : Measured Capacitance Value (F) |Zx| : Measured Impedance Value (Ω) Accuracy applies when Dx (measured D value) ≤ 0.1

When Dx > 0.1, multiply C

Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 100nF

Then

CxfZx⋅⋅⋅

Ae

by

Refer to the accuracy table, get CAe=±0.1%

L Accuracy:

LAe = Ae of L f : Test Frequency (Hz) Lx : Measured Inductance Value (H) |Zx| : Measured Impedance Value (Ω) Accuracy applies when Dx (measured D value) ≤ 0.1

When Dx > 0.1, multiply L

Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 1mH Then

by

Ae

Refer to the accuracy table, get L

= ±0.5%

Ae

B&K Precision 889B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1. Introduction

1.1 General

1.2 Impedance Parameters

1.3 Specification