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BK Precision 817050088922, Руководство пользователя

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BK Precision 817050088922 Скачать руководство пользователя страница 24

 

25 

  

ASC OFF 

  

OK 

  

RANG? 

  

 

0

   (

return value

) 

 

READ?

 

Return  the  measurement  value.  This  command  will  perform  a  measurement  according  to  the  current 
measurement mode and return the measured value. 
Example: 
 

CPD 

 

OK 

 

READ? 

 

 0.22724 0.12840

   (

return value

) 

 

DCR 

 

OK 

 

READ? 

 

 

5.1029

    

(

return value

) 

The  “DCR”,  “DCV”,  and  “ACV”  measurements  will  send  only  one  measured  value.  The  other  measurement 
modes will send two measured values separated by space (ASCII 20H). 

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Содержание 817050088922

Страница 1: ...C 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 CO...

Страница 2: ...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...

Страница 3: ...o 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 Z s R s X Tan Sin Z s X s X s R Z Cos Z s R Z s jX s R Z 1 2 2 Th...

Страница 4: ...9999 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 dig...

Страница 5: ...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 2 1 1 1 0 5 1 0 2 1 0 1...

Страница 6: ...1 100KHz NA 0 159pF 1 591pF 1 591pF 15 91pF 15 91pF 159 1pF 159 1pF 1 591nF 1 591nF 15 91nF 15 91nF 1 591uF 1 591uF 15 91uF NA 5 1 2 1 1 1 0 4 1 1 1 2 1 5 1 200KHz NA 0 079pF 0 795pF 0 795pF 7 957pF...

Страница 7: ...795 7uH 795 7uH 79 57uH 79 57uH 0 795uH 0 795uH 0 079uH 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 0 020 0 010 0 005 0 002 0 0...

Страница 8: ...Then 1590 9 10 100 3 10 2 1 2 1 Cx f Zx Refer to the accuracy table get CAe 0 1 L Accuracy Lx f Zx 2 LAe Ae of L f Test Frequency Hz Lx Measured Inductance Value H Zx Measured Impedance Value Accurac...

Страница 9: ...00nF Then 1590 9 10 100 3 10 2 1 2 1 Cx f 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 valu...

Страница 10: ...3 6 3 10 3 10 2 2 Lx f Zx Refer to the accuracy table get LAe 0 5 005 0 100 Ae De If measured Qx 20 Then 1 0 1 2 1 2 De Qx De Qx Ae Q Accuracy 100 Ae 180 Ae Example Test Condition Frequency 1KHz Level...

Страница 11: ...s disconnect the power cord from the instrument disconnect all other connections for example test leads computer interface cables etc discharge all circuits and verify there are no hazardous voltages...

Страница 12: ...e used to determine the capacitance per foot Do not use too short length such as one foot because any error becomes magnified in the total length calculations Sometimes the affecting stray capacitance...

Страница 13: ...9 Model Number 10 LPOT Terminal 11 D Q ESR Function Key 12 HPOT Terminal 13 Open Calibration Key 14 DCV ACV Function Key 15 Relative Key 16 HCUR Terminal 17 Short Calibration Key 18 Diode Continuity F...

Страница 14: ...After it is finished the 889B will beep to show that the calibration is done 2 2 2 Relative Mode The relative mode lets the user to make a quick sort of a bunch of components First insert the standard...

Страница 15: ...selected the D Q and ESR can be shown on the secondary display If the parallel mode Cp is selected only the D and Q can be shown on the secondary display The following shows some examples of capacitan...

Страница 16: ...e locked Remote Binning mode is opened for users to design your own private fast and high efficient application programs Users can design a server or driver any software component that can do server s...

Страница 17: ...tive Relative 1 Normal Normal Bit 7 0 Calibration Calibration 1 Normal Normal Bit 10 Bit 8 Reserved 000 Lp 001 Ls 010 Cp 011 Cs 100 Z 101 DCR 110 Reserved 111 Reserved Bit 12 Bit 11 Reserved 00 D 01 Q...

Страница 18: ...e format shown as following Lead_code1 02 Lead_code2 09 Data_code 8 byte long two 32 bit floating point number format the first 4 byte is the main reading Cp and the second 4 byte is the secondary rea...

Страница 19: ...COMMAND means a query or a measuring command For example CpD sets the measurement mode to Cp and D CpD sets the measurement mode to Cp and D as well as measures the values and send them back 5 The CO...

Страница 20: ...and angle Deg measurement mode setting or querying command ZTR Impedance and angle Rad measurement mode setting or querying command DCV DC Voltage measurement mode setting or query command ACV AC Vol...

Страница 21: ...back FREQ PARAMETER Set query the measurement frequency FREQ PARAMETER Set the measurement frequency according to the parameter When setting command is entered the 889B will return OK string after se...

Страница 22: ...will be returned 1 Frequency 2 Level 3 Measurement mode 4 Unit of primary display 5 Unit of secondary display The existence of field 5 depends on the measurement mode For example there s no field 5 i...

Страница 23: ...rameter OK string will be returned when setting is complete PARAMETER ASCII string Numerical code pF 0 nF 1 uF 2 mF 3 F 4 nH 8 uH 9 mH 10 H 11 KH 12 mOhm 17 Ohm 18 KOhm 19 MOhm 20 mV 21 V 22 mA 23 A 2...

Страница 24: ...and return the measured value Example CPD OK READ 0 22724 0 12840 return value DCR OK READ 5 1029 return value The DCR DCV and ACV measurements will send only one measured value The other measurement...

Страница 25: ...A Co o Lo Ro Lo a CONNECTION c TYPICAL IMPEDANCE MEASUREMENT RANGE 2T 1m 10m 100m 1 10 1K 10K 100K 1M 100 10M LPOT LCUR c Typical Impedance Measurement Range Figure 4 1 3 Terminal 3T 3 Terminal uses...

Страница 26: ...easurement Range Figure 4 3 5 Terminal 5T 5 Terminal connection is the combination of 3T and 4T Figure 4 4 It has four coaxial cables Due to the advantage of the 3T and 4T this connection can widely i...

Страница 27: ...surement Range Figure 4 5 Eliminating the Effect of the Parasitic Capacitor When measuring the high impedance component i e low capacitor the parasitic capacitor becomes an important issue Figure 4 6...

Страница 28: ...sation the 889B has Yp and Zs that can then be used for the real Zdut calculation Figure 4 7 d HCUR HPOT LCUR LPOT Zdut Co Rs Ls Go Zm Redundant Impedance Zs Parastic Conductance Yo Parastic of the Te...

Страница 29: ...tional when test frequency is fixed Therefore the larger inductance equals to higher impedance and vice versa Figure 4 9 shows the equivalent circuit of inductor When the inductance is small the Rs be...

Страница 30: ...h these requirements BEFORE APPLYING POWER Verify that the product is set to match the available line voltage is installed SAFETY SYMBOLS Caution risk of electric shock Earth ground symbol Equipment p...

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