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Atlas 

LCR45

 User Guide 

 

January 2019 – Rev 4 

Page 7 

 

User Interface 

 
Button  functions  of  the  LCR45  are  designed  to  be  intuitive  and  efficient.  If 
you find yourself in a menu that you don’t want, just wait a few seconds and 
you’ll be returned to the normal operation mode. 
 
Generally,  unless  otherwise  stated,  the  first 
function  printed  above  a  button  on  the 
instrument  is  obtained  by  a  brief  press  and  the 
second function is obtained by a 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  determines  that  no  activity  is  taking  place  if  there  are  no 
button presses and no internal measurement range changes. 
 
If you wish, you can manually turn off your LCR45 by 
pressing and holding the 

enter-off

 button. 

 
 

Display Hold Function 

You can Hold (Pause) the displayed measurements in any of the measurement 
screens by briefly pressing 

on-menu

.  

 

When  in  HOLD  mode,  the  letter 

  will  be  displayed. 

Press 

on-menu

 again to resume measurements. 

 
 

Summary of Contents for Atlas LCR45

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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