LCR LQ-9101 User Manual Download | Manualshive

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capacitance of the bridge itself is generally below 0.5P, and the series impedance residual is generally less
than 1mΩ. Users use bridges, this function is not meaningful, mainly to facilitate the understanding of the
basic hardware situation in the production test.
2017/06/01 VER.H VER.K Page 16/22

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Summary of Contents for LQ-9101

Page 1: ...000 9999 D 0 0000 9999 9 180 00 180 00 Minimum Resolution Rs Rp Z 0 1 m 100Hz120Hz 0 1P 0 1uH 1000Hz 0 01P 0 01 uH 10KHz 0 001P 0 001uH Display Valid Digit Measurement Status Four Valid Digit Test St...

Page 2: ...brightest non test state Basic operating current 23mA light environment backlight automatically adjust the most Dark non test state Power OFF state consumption 1uA Automatic shutdown time 15 2 minute...

Page 3: ...ws the integrated display interface The content description is shown in the figure Figure 2 Figure 3 is the Z display interface and the interface mark is the lower right corner Z For the description o...

Page 4: ...r interface the interface is marked as the lower right corner S see figure Description 4 5 is parallel parameter interface the interface is the lower right corner fag P illustrated5 see Description in...

Page 5: ...the series equivalent of the series model can be used Z Rs jXs The expression of can also be expressed by the parallel equivalent parameter Z Rp jXp of the parallel model The form is different but Z...

Page 6: ...LQ 9101 User s Manual 7 Part III describes testing accuracy 3 1Ae accuracy of impedance regularity as shown in FIG Figure 8 2017 06 01 VER H VER K Page 6 of 22...

Page 7: ...een indicates charging is complete After the built in rechargeable battery is fully charged the accumulated time for the use of the bridge for normal measurement is not less than 8 hours Allows the br...

Page 8: ...e values are several m or less at short circuit tens of M or more at open circuit and when the device under test is at m and M level the parasitic impedance will affect the accuracy of the test result...

Page 9: ...llel parameter is the largest and the display is 1000M 0 000P 4 3 3 Kelvin Test Clip Clear When using the Kelvin clip measurement method to clear or measure the two test wires should be stranded This...

Page 10: ...it clearing is the same as other measurement methods The parasitic parameters of the external two wire meter pens will also cause uncertainty due to the change of the attitude of the two pens Therefor...

Page 11: ...Generally low impedance series parameters are more stable than parallel parameters and high impedance parallel parameters are more stable than series parameters When Q value is high L or C is more sta...

Page 12: ...s low resistance measurement capability The effect of open circuit clear on the measurement Open circuit clear has a relatively large infuence on high impedance measurement After the open circuit is c...

Page 13: ...tional inductance The additional inductance changes as the area enclosed by the two test lines changes Therefore the additional inductance should be kept as stable as possible so that the short circui...

Page 14: ...the target of the high end test line 2017 06 01 VER H VER K Page 10 of 22Two wire test leads...

Page 15: ...tion is that the reading is unstable Therefore when the measured impedance is low besides paying attention to the infuence of the additional inductance it is necessary to adopt Measures of contact res...

Page 16: ...ent is needed it should be provided by an external circuit When designing an external circuit it should be ensured that no DC voltage is applied to the bridge to access the measurement terminal Refere...

Page 17: ...ansformer Leakage Sensitivity Measurement Reference Bridge Special Application 4 6 5 Derating Ratio Reference Bridge Special Application Document Note Part 5 Inspection and Maintenance Precautions 5 1...

Page 18: ...n occurs the processing is detailed in section 5 4 Firmware Update 5 2 General check Each function key has normal control and can be cleared by short circuit and clear by open circuit After the short...

Page 19: ...for a long period of time The plugs used for the self made test leads should be sized to ensure that the quality of the jacks is not improved due to poor plug quality The surface of the body is kept...

Page 20: ...bridge calibration data is accidentally damaged see 5 1 the user can download the corresponding machine number data provided by the manufacturer to the bridge and restore the calibration data Bridge...

Page 21: ...bration data enter the command E click Send button and the receiving window returns Ready to write EEPROM Step 8 Click the Send File button and the bridge is automatically restarted after the bridge i...

Page 22: ...elow 0 5P and the series impedance residual is generally less than 1m Users use bridges this function is not meaningful mainly to facilitate the understanding of the basic hardware situation in the pr...

Page 23: ...hen the user is not considered appropriate or replaced with a new display the user can adjust The current state C button is to increase the contrast E button is contrast weakened ratio After adjusting...

Page 24: ...measured component and decide whether or not to reset it as described in 7 1 7 3 Large capacity capacitors are measured at high frequencies It is unreasonable to see why Cs is larger than low frequenc...

Page 25: ...l more conveniently to analyze the problem For example when a repairer analyzes a circuit board component the device under test is connected with other components on the board The component model may...

Page 26: ...r the test leads are cleared In principle body socket measurements should be used whenever possible when the measured impedance is high 7 8 Why does the measurement of high value resistance error beco...

Page 27: ...recognize the capacitance of the packaging plate which can be judged by the measurement There is nothing special about the patch component in terms of the measurement method For example in the absenc...

Page 28: ...7 13 Other LCR tables have LCR function force options How about this LQ 9101 bridge In fact whether a component is R or L is not absolute Such as wirewound resistors although the component as a resist...

Page 29: ...drop across the resistor and the signal current through the resistor 7 17 What is the relationship between the parameters displayed on different interfaces of the bridge Just know that all the parame...

Page 30: ...n 1000m and 1 000 The number 1000 is the lowest resolution number of the four significant figures Under the premise of the effective number of digits this arrangement can determine the actual deviatio...

Page 31: ...ant resonance scheme is indeterminate and varies with the parameters of the measured component Capacitance and inductance parameters can be measured The quality factor and loss factor of these two com...

Page 32: ...ry parameters The primary parameters are L C R and Z The secondary parameters are Q D and The DCR DC resistance measurement mentioned in this document is essentially the same as the 0Hz measurement us...

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