Atlas LCR45 User Guide January 2019 – Rev 4 Want to use it now? We understand that you want to use your Atlas LCR45 now. The unit is ready to go, but please make sure that you do read through pages 3-4.
Atlas LCR45 User Guide January 2019 – Rev 4 Introduction The Atlas LCR45 is an enhanced handheld instrument capable of performing detailed analysis of passive components such as inductors, capacitors and resistors. As well as standard component identification and value measurement, the LCR45 can provide a detailed impedance analysis of your component.
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 discrete, unconnected components is recommended.” The LCR45 is designed to provide accurate and reliable...
Atlas LCR45 User Guide January 2019 – Rev 4 Introductory notes about impedance All passive components (inductors, capacitors and resistors) have an impedance. Impedance typically has the units of Ohms. It is a combination of the component’s resistive and reactive characteristics.
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Atlas LCR45 User Guide January 2019 – Rev 4 Complex impedance can be illustrated on an Argand Diagram, showing the imaginary (reactive) part on the vertical axis and the real (resistive) part on the horizontal axis. This is an ideal way of visualising the magnitude and phase of the impedance.
Atlas LCR45 User Guide January 2019 – Rev 4 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.
Atlas LCR45 User Guide January 2019 – Rev 4 Using your LCR45 Normal Use – Fully Auto Mode The LCR45, by default, is set to operate in fully automatic mode. In this mode the user doesn’t need to worry about any settings as these are automatically determined.
Atlas LCR45 User Guide January 2019 – Rev 4 Impedance Display While measurements are being made, you can switch to a different display mode by pressing enter-off for further information about the component’s impedance at the current test frequency. This is displayed as a complex number, comprising of a real (resistive) part and an imaginary (reactive) part that is prefixed with j.
Atlas LCR45 User Guide January 2019 – Rev 4 Admittance Display Admittance is the inverse of the Complex Impedance. It can be considered in the same way that conductance is the inverse of resistance. Impedance consists of resistance and reactance.
Atlas LCR45 User Guide January 2019 – Rev 4 Magnitude and Phase Display Pressing enter-off again will take you to a different representation component’s impedance, Magnitude and Phase display. This display is useful for gauging how close your component is to a theoretical “ideal”...
Atlas LCR45 User Guide January 2019 – Rev 4 Measurement Screen Selection Earlier pages have introduced the different measurement types available, each selected in turn by briefly pressing the enter-off button. Here’s a summary of the measurement screens when testing a typical inductor: If the test frequency is set to DC (either automatically or manually) then it is not possible to show Impedance, Admittance or Mag/Phase.
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Atlas LCR45 User Guide January 2019 – Rev 4 LCR45 Operation Mode Selection As you can see in the above illustration, each press of the on-menu button takes you through all the available modes and then back round again. – In this mode, the LCR45 will attempt to determine the component type being analysed and display the appropriate component description.
Atlas LCR45 User Guide January 2019 – Rev 4 Test Frequency Mode Selection When the LCR operation mode has been selected, you may be prompted to select your desired test frequency mode. You will not be asked to select a test frequency mode if you previously selected for the LCR operation mode as that is fixed to DC.
Atlas LCR45 User Guide January 2019 – Rev 4 Testing Capacitors In automatic mode, the LCR45 uses one of two different methods to analyse capacitors, AC impedance analysis for low value capacitors (less than about 7µF) and DC charge analysis for larger capacitors (about 7µF to 10000µF).
Atlas LCR45 User Guide January 2019 – Rev 4 Capacitance Ranges The following chart illustrates the recommended ranges of capacitance measurement covered by each test frequency in the LCR45. Key: 200kHz Better than 1% resolution Worse than 1% resolution 15kHz...
Atlas LCR45 User Guide January 2019 – Rev 4 Inductance Ranges The following chart illustrates the recommended ranges of inductance measurement covered by each test frequency in the LCR45. Key: Better than 1% resolution Worse than 1% resolution µ 200kHz µ...
Atlas LCR45 User Guide January 2019 – Rev 4 Probe Compensation If you change the probes on your LCR45, it is good practice to run through the compensation procedure. This ensures that the probes' own inductance, capacitance and resistance are automatically taken into account for subsequent measurements.
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Atlas LCR45 User Guide January 2019 – Rev 4 Probe compensation continued… When prompted, attach a small length of Short the probes tinned copper wire between the two test then press enter probes. Now let the leads rest on a non- conductive surface, try not to touch them during the compensation procedure.
Although the unit may continue to operate following a low 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 battery types include 23A, V23A, GP23A, MN21, L1028 or a good quality 12V alkaline equivalent as used in many test instruments and automotive remote key fobs.
It is possible that a temporary condition caused the failure 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.
Atlas LCR45 User Guide January 2019 – Rev 4 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...
ATC55 – Dual Instrument Case A specially designed case with custom made foam compartments for up to 2 Peak instruments. The case has a tough 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.
Atlas LCR45 User Guide January 2019 – Rev 4 Appendix C – Auto Component Identification Criteria It is important to appreciate that, in automatic mode, the LCR45 can only decide on the identity of the component under test using results of the electrical tests that it performs on the component.
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Atlas LCR45 User Guide January 2019 – Rev 4 Capacitor Detection The LCR45 will tell you that you have a capacitor if the following criteria are satisfied: 1. If the measured DC resistance is higher than 10M , even if the measured capacitance is very low (such as open probes).
Atlas LCR45 User Guide January 2019 – Rev 4 Appendix E – Troubleshooting Problem Possible Solution Capacitance measured when probes are open Perform a probe compensation. circuit is not close to zero (±1.0pF). Resistance and/or inductance measured when probes are short circuit is Perform a probe compensation.
More details can be obtained from your national WEEE recycling agency. At Peak Electronic Design Ltd we are committed to continual product development and improvement. The specifications of our products are therefore subject to change without notice.
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