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Wayne Kerr Electronics Replacement Guide

Here are a summary table for our LCR products from 1960 and suggests a suitable replacement.

replacement guide.png

4200 Series => 4300 Series

Specifications
Old Model
Replacement Model
Model
4200 Series
4300 Series
Available
Made between 1983 and 2013
First made in 2009 and still in production
Basic Accuracy
All 4200 Series models: 0.1%, except for the 4225: 0.25%
0.1%
Frequency Range
42(10, 25): 100Hz, 1kHz, 10kHz 4250: 100Hz, 1kHz, 10kHz, 100kHz 4230: 100Hz - 200kHz 4265: 50Hz - 100kHz 4270: 50Hz - 1MHz
20Hz to 100kHz

The recommended replacement for models in the 4200 Series is the 4300 Series Model. The 4300 Series Models offers significant improvements over the older models, including:

  • Lower minimum frequency (20Hz)

  • Many more measurement frequencies (557 steps)

  • Extra measurement parameters (Z, Y, θ, B, G, X)

  • Wider AC Drive range (10mV to 1Vrms)

  • Many more AC Drive levels (200 steps)

  • Faster measurement speed

  • DC resistance as a standard feature

  • Larger and easier-to-read display

  • Autoranging AC input voltage

For applications requiring a measurement frequency greater than 100kHz, three additional 4300 models are available:

  • 4320: 20Hz to 200kHz

  • 4350: 50Hz to 500kHz

  • 43100: 20Hz to 1MHz

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