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Atlas 

LCR45

 User Guide 

 

January 2019 – Rev 4 

Page 22 

 

Appendix A – Display Units 

 
The  LCR45  will  display  measurement  data  with  the  most  suitable  prefix  for 
the  value  of  parameter  being  shown.  You  can  convert  between  unit  prefixes 
using the following tables: 
 

Inductance 

 

µH  

(micro-Henries) 

mH  

(milli-Henries) 

H  

(Henries) 

1 

0.001 

0.000001 

1000 

1 

0.001 

1000 000 

1000 

1 

 
 

Capacitance 

 

pF  

(pico-Farads) 

nF  

(nano-Farads) 

µF  

(micro-Farads) 

1 

0.001 

0.000001 

1000 

1 

0.001 

1000 000 

1000 

1 

1000 000 000 

1000 000 

1000 

 
 

Resistance 

 

Ω  

(Ohms) 

kΩ  

(Kilohms) 

MΩ   

(Megohms) 

1 

0.001 

0.000001 

1000 

1 

0.001 

1000 000 

1000 

1 

Содержание Atlas LCR45

Страница 1: ...ter Model LCR45 Designed and manufactured with pride in the UK User Guide Peak Electronic Design Limited 2002 2019 In the interests of development information in this guide is subject to change withou...

Страница 2: ...7 Using your LCR45 8 Component Display 8 Impedance Display 9 Admittance Display 10 Magnitude and Phase Display 11 Modes and Settings 12 Frequency Mode Selection 14 Testing Capacitors 15 Capacitance Ra...

Страница 3: ...the LCR45 provides detailed measurement data including Component type Component value in real engineering units Secondary component value such as DC resistance of inductors Test frequency used DC 1kHz...

Страница 4: ...LCR45 and invalidation of the manufacturer s warranty Non destructive overload situations are stored in the non volatile memory within the LCR45 to help Peak with repair diagnostics Analysis of discr...

Страница 5: ...y exhibiting a voltage across them that is not in phase with the current through them All of these effects can be described by measuring the Complex Impedance of a component Despite the word Complex i...

Страница 6: ...eal way of visualising the magnitude and phase of the impedance It is not necessary to fully understand Complex Impedance to make good use of the LCR45 All of the detailed calculations are carried out...

Страница 7: ...longer press Power On If your instrument is off simply press the on menu button to power up Power Off The LCR45 will automatically turn off its own power after 60 seconds of no activity The unit dete...

Страница 8: ...de To power up press the on menu button After the brief power up screen the current operating mode will be displayed for about 2 seconds The LCR45 will then continue to the Component Identification di...

Страница 9: ...in the same way as simple resistance when dealing with series parallel or series parallel networks Note that it is not possible to display complex impedance if the test frequency is set to DC either...

Страница 10: ...een when testing at DC How the LCR45 uses Susceptance The LCR45 uses the value of susceptance to calculate capacitance Susceptance of a capacitor is 2 fC Calculating the capacitance from its susceptan...

Страница 11: ...ll loss in an inductor can have significant influence on the measured phase Additionally measurement resolution particularly at the edges of the LCR45 measurement ranges can result in non ideal phase...

Страница 12: ...t frequency is set to DC either automatically or manually then it is not possible to show Impedance Admittance or Mag Phase In those situations you will see the letters displayed Modes and Settings If...

Страница 13: ...ment characteristics of the component under test the LCR45 will be forced to base its calculations on the standard inductor model If you re testing a component that is not an inductor such as a capaci...

Страница 14: ...d dynamically select between DC 1kHz 15kHz and 200kHz This option is available if you previously selected for the measurement mode this is ideal for large capacitances such as electrolytics generally...

Страница 15: ...on the capacitance Capacitors particularly electrolytics can store enough charge that may cause damage to the LCR45 An electrolytic capacitor can even develop its own stored charge that may be suffic...

Страница 16: ...Key Worse than 1 resolution Measuring capacitance outside of the black bands will result in degraded measurement resolution possibly worse than 1 of the measured value Measuring capacitance outside o...

Страница 17: ...esolution Measuring inductance outside of the black bands will result in degraded measurement resolution possibly worse than 1 of the measured value Measuring inductance outside of the white bands may...

Страница 18: ...unt for subsequent measurements Invoke the LCR operation mode menu by pressing and holding the on menu button for a second or two Repeatedly press the on menu button until you see the option briefly p...

Страница 19: ...After a short time the instrument will ask you to remove the link from the probes At that point remove the link rest the probes on a non conducting surface and don t touch them When you ve done that y...

Страница 20: ...battery warning measurements may be adversely affected New batteries can be purchased from many retailers and directly from Peak Electronic Design Ltd or an authorised agent Battery types Suitable ba...

Страница 21: ...ilure and restarting the unit may clear the problem If the fault persists please contact Peak Electronic Design Ltd or an authorised agent with details of the error message for further advice Please n...

Страница 22: ...own You can convert between unit prefixes using the following tables Inductance H micro Henries mH milli Henries H Henries 1 0 001 0 000001 1000 1 0 001 1000 000 1000 1 Capacitance pF pico Farads nF n...

Страница 23: ...h exterior ideal for protecting your LCR45 probes spare batteries and user guide SMD03 Surface Mount Tweezer Probes These tweezers are ideal for testing many types of surface mount device The tweezers...

Страница 24: ...uctor and Resistor Detection The LCR45 will distinguish between components that are largely inductive or largely resistive according to the values of inductance and resistance that it has measured Thi...

Страница 25: ...low such as open probes or 2 If the measured DC resistance is between 100k and 10M and the measured capacitance is larger than 10pF or 3 If the measured DC resistance is between 1k and 100k and the m...

Страница 26: ...t voltage across O C 1 05V 1 05V Peak test current thru S C 3 25mA 3 25mA 1kHz 14 9254kHz 7 Test frequency accuracy 200kHz Typically 0 5 Sine purity Typically 60dB 3rd harmonic Operating temperature r...

Страница 27: ...few seconds and allow the readings to settle Ensure that nothing else is connected with the component under test Make sure that you are not touching the connections The LCR45 may have selected a mode...

Страница 28: ...e above All claims must be accompanied by a proof of purchase WEEE Waste of Electrical and Electronic Equipment Recycling of Electrical and Electronic Products In 2006 the European Union introduced re...

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