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Peak LCR45 and Impedance Meter

The new LCR45 does everything that the popular LCR40 does, but we've added some significant enhancements. The LCR45 features a new high capacity micro and high resolution ADCs.

Data Sheet User Guide

Measure Inductance, Capacitance, Resistance and Impedance

  • Supports inductors, capacitors, resistors and arbitary impedances.
  • Measure component values.
  • Measure complex impedance, complex admittance and Magitude and Phase of impedance.
  • Auto and manual modes for test frequency (DC, 1kHz, 15kHz and 200kHz).
  • Auto and manual modes for component type.
  • Also works with polarised and non-polarised electrolytic capacitors in either orientation.
  • Easy to scroll through all the measurement types you need.
  • Continuous measurements with "hold" function. Great for fine tuning components.
  • 24 month warranty as standard.

It does more than you think
As you would expect from an LCR meter, the LCR45 is great for measuring your inductors, capacitors and resistors. However, this LCR meter offers much more. 

Simple to use
Just clip the universal test leads to your component and press the test button. In seconds, the LCR45 will identify the type of component (Inductor, Capacitor or Resistor) together with the component’s value. Readings are taken continuously, giving you the ideal tool for making fine adjustments. 

In addition to the component type and value, the LCR45 can also display the component's parameters as a complex impedance, complex admittance or magnitude and phase of impedance.

What's more, you can select auto and manual modes for both the component type and test frequency.

 

 

Flexible
The LCR45 is supplied with our new 2mm compatible detachable micro-hooks, allowing the use of a range of 2mm compatible probes.
Technical Specification Summary (at 20°C)
LCR45 FAQs
 

Can I measure the impedance of speakers?

Yes, set the LCR45 to manual inductance mode and a fixed frequency of 1kHz or 15kHz. You can see the inductance, resistance, total impedance and phase of the impedance.

  

When testing speakers at 15kHz, I can hear a low frequency buzz from the speaker, not the 15kHz I've selected. Why?

The LCR45 uses "bursts" of test signals, it is these "bursts" that you can hear. During each burst, the LCR45 is using the test frequency you've selected.

Can I measure arbitrary impedances rather than just components?

Yes. If the LCR45 has difficulty selecting the best mode and frequency then you can switch to a manual mode and test frequency to display the detailed impedance.

Can I use this in-circuit?

No, it is not recommended for in-circuit use. Other component interactions can cause misleading results and damage may result from unexpected charged devices.

Is the LCR45 better than the LCR40 for low inductances?

Yes. The use of a finer resolution ADC provides significantly finer measurements when measuring below 1µH.

Is the LCR45 calibrated?

Yes. Every LCR45 is individually calibrated to standards that are traceable to international standards.

What probes are included?

Our universal gold plated hook probes (removable).

 

Can it test polarised and non-polarised electrolytic capacitors?

Yes. The tests are performed with very low voltages and will be fine for both polarised and non-polarised capacitors in either orientation.

 

 

Parameter

Min

Typ

Max

Note

Resistance

range

0Ω

 

2MΩ

 

resolution

0.1 Ω

0.2Ω

 

 

accuracy

Typically ±1.0% ±0.6 Ω

1,2,6

Capacitance

range

0pF

 

10,000µF

 

resolution

0.1pF

0.2pF

 

 

accuracy

 Typically ±1.5% ±0.6pF

1,2,5

Inductance

range

0µH

 

10H

 

resolution

0.1µH

0.2µH

 

 

accuracy

 Typically ±1.5% ±0.6µH

1,2,4

Passive

Component

Impedance

Re & Im

Typically ±1.5% ±10 LSD

4,5,6

Magnitude

Typically ±1.5% ±10 LSD

4,5,6

Phase

Typically ±5°

4,5,6

Measurement Sample Rate

0.5Hz

1.5Hz

2Hz

 

Peak test voltage (across O/C)

-1.05V

 

+1.05V

 

Peak test current (thru S/C)

-5.0mA

 

+5.0mA

 

Test frequency

accuracy

1kHz

Typically ±0.5%

 

14.9254kHz

7

200kHz

 

Sine purity

Typically -60dB 3rd harmonic

 

Operating temperature range

10°C

 

40°C

3

 

50°F

  

104°F

 

Battery operating voltage

8.5V

 

13V

 

Notes for table above:
1. Within 12 months of factory calibration. Please contact us if you require a full re-calibration and/or certification of traceable calibration.
2. Specified at temperatures between 15°C and 30°C.
3. Subject to acceptable LCD visibility.
4. For inductances between 100µH and 100mH in fully auto mode.
5. For capacitances between 200pF and 500nF in fully auto mode.
6. For resistances between 10Ω and 1MΩ in fully auto mode.
7. For clarity, the 14.9254kHz test frequency is shown as 15kHz.

 

 

Typical Resolutions For Capacitance and Inductance

Atlas LCR - Passive Component Analyser - Model LCR45