Bk-precision 889B - Manual Uživatelský manuál

v092711 Model 889B Bench LCR/ESR Meter with Component Tester INSTRUCTION MANUAL

9 Z Accuracy: As shown in table 1. C Accuracy: CxfZx⋅⋅⋅=π21 CAe = Ae of C f : Test Frequency (Hz) Cx : Measured Capacitance Value (F) |Zx| : M

10 ESR Accuracy: 100AeXxAeESR ⋅±= CxfLxfXx⋅⋅⋅=⋅⋅⋅=ππ212 ESRAe = Ae of ESR f : Test Frequency (Hz) Xx : Measured Reactance Value

11 Q Accuracy: DeQxDeQxAeQ⋅⋅±=12 QAe = Ae of Q measurement value Qx : Measured Quality Factor Value De : Relative D Accuracy Accuracy applies whe

12  Testing Signal: Level Accuracy : ± 10% Frequency Accuracy : 0.1%  Output Impedance : 100Ω ± 5%  General: Temperature : 0°C to 40°C

13 where the parallel equivalent mode may be more appropriate. For iron core inductors operating at higher frequencies where hysteresis and eddy curr

14 2. Operation 2.1 Physical Description 1. Primary Parameter Display 2. Secondary Parameter Display 3. L/C/Z/DCR Function Key 4. DC

15 2.2 Making Measurement 2.2.1 Open and Short Calibration The 889B provides open/short calibration capability so the user can get better accuracy

16 2.2.4 DC Resistance Measurement The DC resistance measurement measures the resistance of an unknown component by 1VDC. Press the L/C/Z/DCR key to

17 3. Operation Modes There are four operation modes in the 889B. They are Normal, Binning, Remote and Remote Binning modes. By pressing the Remote

18 bit position LCR DC/AC V/A Bit 2 – Bit 0 (test freq) Reserved 000 100 Hz 001 120 Hz 010 1K Hz 011 10K Hz 100 100K Hz 101 200K Hz 110

Contents CONTENTS ...

19 1101 1110 1111 Auto-Ranging Auto-Ranging Bit 17 0 Short Cal Short Cal 1 Open Cal Reserved Bit 21 – Bit 18 Measurement Modes 0000

20 Data_code : 8 bytes long; two 32-bit floating point format of the secondary reading Checksum : -((02+09+data_code) && 0x00FF) 02 09 S

21  CsRs(?) Serial capacitance and serial resistance measurement mode setting or querying command.  CsQ(?) Serial capacitance and quality factor

22 Example: ASC ON OK (return) FREQ? 1KHz (return) ASC OFF OK (return) FREQ? 2 (return) CORR OPEN Perform the open calib

23 Set the measurement level according to the parameter. When setting is done the 889B will return “OK” string. PARAMETER: ASCII string Numerical

24 Example: ASC ON OK DCV OK MODE? DCV V (return value) RANG mV OK MODE? DCV mV (return value) RANG(?) PARAMETER Set (q

25 ASC OFF OK RANG? 0 (return value) READ? Return the measurement value. This command will perform a measurement according to the cur

26 4. Application 4.1 Test Leads Connection Auto balancing bridge has four terminals (HCUR, HPOT, LCUR and LPOT) to connect to the device under test

27 HCURHPOTDUT(b) BLOCK DIAGRAMDUTVA(a) CONNECTION(c) TYPICAL IMPEDANCE MEASUREMENT RANGE (£[)4T1m 10m 100m 1 10 1K 10K 100K 1M100 10MLPOTLCUR Figur

28 (b) BLOCK DIAGRAM(a) CONNECTIONDUTVA(c) TYPICAL IMPEDANCEMEASUREMENT RANGE(£[)4T1m 10m100m 1 10 1K 10K 100K 1M100 10MHPOTDUTHCURLCURLPOTHPOTDUTH

29 HCURHPOTLCURLPOTZdutCoRsLsGoZmRedundantImpedance(Zs)ParasticConductance(Yo)Parastic of the Test Fixture(a) Parastic Effect of the Test Fixture H

30  Inductor The impedance and inductance of a inductor are positively proportional when test frequency is fixed. Therefore, the larger inductanc

31 5. Limited THREE-Year Warranty B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will

32 Service Information Warranty Service: Please go the service and support section on our website www.bkprecision.com to obtain a RMA #. Return the

33 6. Safety Precaution SAFETY CONSIDERATIONS The Models 889B LCR Meter has been designed and tested according to Class 1A 1B or 2 according to IEC4

34 PN: 481-528-9-001B Printed in Taiwan 2009 B&K Precision Corp. 22820 Savi Ranch Parkway Yorba Linda, CA 92887 USA TEL: 714-921-9095 FAX: 714

3 1. Introduction 1.1 General The B&K Precision Corp. 889B Synthesized In-Circuit LCR/ESR Meter is a high accuracy test instrument used for measu

4 Cs : Serial Capacitance Cp : Parallel Capacitance  Second Parameter Display: θ : Phase Angle ESR : Equivalence Serial Resistance D : Dis

5 There are two types of the circuit mode, the series mode and the parallel mode. See Figure 1.2 to find out the relationship of the series and pa

6 2. AC Voltage Measurement (True RMS): Range : 2V, 20V, 200V, and 600V Resolution : 1mV, 10mV, 100mV, and 1V Accuracy : +/- (0.8% +

7 C Accuracy: 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

8 10KHz 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 5% ±