BK PRECISION 889B_manual 电路图.pdf

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1、 Model 889B Bench LCR/ESR Meter with Component Tester INSTRUCTION MANUAL RadioFans.CN 收音机爱好者资料库 Contents 1. INTRODUCTION .3 1.1 GENERAL.3 1.2 IMPEDANCE PARAMETERS.4 1.3 SPECIFICATION.5 1.4 ACCESSORIES.13 2. OPERATION.14 2.1 PHYSICAL DESCRIPTION.14 2.2 MAKING MEASUREMENT.15 2.2.1 Open and Short Cali

2、bration.15 2.2.2 Relative Mode.15 2.2.3 Range Hold.15 2.2.4 DC Resistance Measurement.16 2.2.5 AC Impedance Measurement.16 2.2.6 Capacitance Measurement.16 2.2.7 Inductance Measurement.16 3. OPERATION MODES.17 3.1 REMOTE MODE COMMAND SYNTAX.20 3.2 REMOTE MODE COMMANDS.20 4. APPLICATION.26 4.1 TEST L

3、EADS CONNECTION.26 4.2 OPEN/SHORT COMPENSATION.28 4.3 SELECTING THE SERIES OR PARALLEL MODE.29 5. LIMITED ONE-YEAR WARRANTY AND SERVICE INFORMATION.31 6. SAFETY PRECAUTION.33 RadioFans.CN 收音机爱好者资料库 RadioFans.CN 收音机爱好者资料库 3 1. Introduction 1.1 General The B 10 Ohm 20mA 3. Diode/Audible Continuity C

4、hecks: Open Circuit Voltage: 5Vdc Short Circuit Current: 2.5mA Beep On: 25 Beep Off: 50 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

5、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 4 Cs : Serial Capacitance Cp : Parallel Capacitance Second Pa

6、rameter Display: : Phase Angle ESR : Equivalence Serial Resistance D : Dissipation Factor Q : Quality Factor Combinations of Display: Serial Mode : Z , 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 i

7、mpedance 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 measu

8、rement plane (Figure 1.1), it can be visualized by the real element on the X-axis and the imaginary element on the y-axis. This impedance measurement plane can also be seen as the polar coordinates. The Z is the magnitude and is the phase of the impedance. Ohm Reactance Resistance Impedance S S X R

9、Z s R s X TanSinZ s X s X s RZCosZ s R Z s jX s RZ 1 22 There are two different types of reactance: Inductive (XL) and Capacitive (XC). It can be defined as follows: Also, there are Quality factor (Q) and the Dissipation factor (D) that need to be discussed. For component, the Quality factor serves

10、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 the ratio of the stored energy (reactance) and the dissipated energy (resistance)

11、. Q is generally used for inductors and D for capacitors. s X s R sX,RZ s Z Imaginary Axis Real Axis Figure 1.1 fCC C X fLL L X 2 11 2 L = Inductance (H) C = Capacitance (F) f = Frequency (Hz) 5 There are two types of the circuit mode, the series mode and the parallel mode. See Figure 1.2 to find ou

12、t the relationship of the series and parallel modes. 1.3 Specification Measuring Range: Parameter Range Z 0.000 to 500.0 M L 0.030 H to 9999 H C 0.003 pF to 80.00 mF DCR 0.000 to 500.0 M ESR 0.000 to 9999 D 0.000 to 9999 Q 0.000 to 9999 -180.0 to 180.0 Voltage/Current Measurements V 0.0 mV to +/- 60

13、0 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 p R p C p L p R p X p R G B s R s C s R s L s R s X D Q 1 tan 11 Figure 1.2 Real and imaginary componen

14、ts are serial ss jXRZ Rs jXs Real and imaginary components are parallel G=1/Rp jB=1/jXp jBGY jXp Rp P jX 1 P R 1 Y 6 2. AC Voltage Measurement (True RMS): 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 Me

15、asurement: 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

16、 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. 20M 10M () 10M 1M () 1M 100K () 100K 10K () 10K 1K () 1K 100 () 100 1 () 1 0.1 () DCR 0.1% 1 0.2

17、% 1 100Hz 120Hz 1KHz 2% 1 1% 1 10KHz 5% 1 2% 1 0.5% 1 0.2% 1 0.5% 1 1% 1 100KHz 200KHz NA 5% 1 2% 1 1% 1 0.4% 11% 1 2% 1 5% 1 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

22、.7pF | 7.957nF 7.957nF | 795.7nF 795.7nF | 7.957uF 200KHz NA 5% 1 2% 1 1% 1 0.4% 1 1% 1 2% 1 5% 1 L Accuracy: 31.83KH | 15.91KH 15.91KH | 1591H 1591H | 159.1H 159.1H | 15.91H 15.91H | 1.591H 1.591H | 159.1mH 159.1mH | 1.591mH 1.591mH | 159.1uH 100Hz 2% 1 1% 1 0.5% 1 0.2% 1 0.1% 1 0.2% 1 0.5% 1 1% 1

23、26.52KH | 13.26KH 13.26KH | 1326H 1326H | 132.6H 132.6H | 13.26H 13.26H | 1.326H 1.326H | 132.6mH 132.6mH | 1.326mH 1.326mH | 132.6uH 120Hz 2% 1 1% 1 0.5% 1 0.2% 1 0.1% 1 0.2% 1 0.5% 1 1% 1 3.183KH | 1.591KH 1.591KH | 159.1H 159.1H | 15.91H 15.91H | 1.591H 1.591H | 159.1mH 159.1mH | 15.91mH 15.91mH

24、| 159.1uH 159.1uH | 15.91uH 1KHz 2% 1 1% 1 0.5% 1 0.2% 1 0.1% 1 0.2% 1 0.5% 1 1% 1 8 318.3H | 159.1H 159.1H | 15.91H 15.91H | 1.591H 1.591H | 159.1mH 159.1mH | 15.91mH 15.91mH | 1.591mH 1.591mH | 15.91uH 15.91uH | 1.591uH 10KHz 5% 1 2% 1 0.5% 1 0.2% 1 0.1% 1 0.2% 1 0.5% 1 1% 1 31.83H | 15.91H 15.91H

26、79uH 200KHz NA 5% 1 2% 1 1% 1 0.4% 1 1% 1 2% 1 5% 1 D Accuracy: |Zx| Freq. 20M 10M () 10M 1M () 1M 100K () 100K 10K () 10K 1K () 1K 100 () 100 1 () 1 0.1 () 100Hz 0.002 0.002 120Hz 1KHz 0.020 0.010 10KHz 0.050 0.020 0.005 0.002 0.005 0.010 100KHz 200KHz NA 0.050 0.020 0.010 0.004 0.010 0.020 0.050 A

27、ccuracy: |Zx| Freq. 20M 10M () 10M 1M () 1M 100K () 100K 10K () 10K 1K () 1K 100 () 100 1 () 1 0.1 () 100Hz 0.105 0.105 120Hz 1KHz 1.046 0.523 10KHz 2.615 1.046 0.261 0.105 0.261 0.523 100KHz 200KHz NA 2.615 1.046 0.409 0.209 0.409 1.046 2.615 9 Z Accuracy: As shown in table 1. C Accuracy: Cxf Zx 2

28、1 CAe = Ae of C f : Test Frequency (Hz) Cx : Measured Capacitance Value (F) |Zx| : Measured Impedance Value () Accuracy applies when Dx (measured D value) 0.1 When Dx 0.1, multiply CAe by 2 1Dx Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 100nF Then 1590 9 10100 3 102 1 2 1 Cxf Zx R

29、efer to the accuracy table, get CAe=0.1% L Accuracy: LxfZx2 LAe = Ae of L f : Test Frequency (Hz) Lx : Measured Inductance Value (H) |Zx| : Measured Impedance Value () Accuracy applies when Dx (measured D value) 0.1 When Dx 0.1, multiply LAe by 2 1Dx Example: Test Condition: Frequency : 1KHz Level :

30、 1Vrms DUT : 1mH Then 283.6 3 10 3 102 2 LxfZx Refer to the accuracy table, get LAe = 0.5% 10 ESR Accuracy: 100 Ae Xx Ae ESR Cxf LxfXx 2 1 2 ESRAe = Ae of ESR f : Test Frequency (Hz) Xx : Measured Reactance Value () Lx : Measured Inductance Value (H) Cx : Measured Capacitance Value (F) Accuracy appl

31、ies when Dx (measured D value) 0.1 Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 100nF Then 1590 9 10100 3 102 1 2 1 Cxf Zx Refer to the accuracy table, get CAe=0.1%, 59. 1 100 Ae Xx Ae ESR D Accuracy: 100 Ae Ae D DAe = Ae of D measurement value Accuracy applies when Dx (measured D v

32、alue) 0.1 When Dx 0.1, multiply Dx by (1+Dx) Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 100nF Then 1590 9 10100 3 102 1 2 1 Cxf Zx Refer to the accuracy table, get CAe=0.1%, 002.0 100 Ae Ae D 11 Q Accuracy: DeQx DeQx Ae Q 1 2 QAe = Ae of Q measurement value Qx : Measured Quality F

33、actor Value De : Relative D Accuracy Accuracy applies when 1DeQx Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 1mH Then 283.6 3 10 3 102 2 LxfZx Refer to the accuracy table, get LAe=0.5%, 005.0 100 Ae De If measured Qx = 20 Then 1 .01 2 1 2 DeQx DeQx Ae Q Accuracy: 100 Ae 180 Ae Example: Test Condition: Frequency : 1KHz Level : 1Vrms DUT : 100nF Then 1590 9 10100 3 102 1 2 1 Cxf Zx Refer to the accuracy table, get ZAe=0.1%, deg057