Gw Instek LCR-821 Digital-Multimeter, DMM, LCR-821 Hoja De Datos

 Warning 

If the test failed, ensure your cables or test fixtures are 
open and not shorted. Ensure R.H is OFF. After 
inspection try again. 

Short circuit 

The short test will calibrate the short circuit 
impedance of the cables or test fixtures. This is 
used for low impedance measurements 

 

4.  Short the cables or test fixtures 

using a short thick copper wire 
if necessary. 

 

 

5.  Press R/L offset in the offset menu.  

 

 

6.  Wait for the calibration to finish. If the SHORT 

TEST was successful the following message is 
displayed. 

 

 

 

 Warning 

 

If the test failed, ensure your cables or test fixtures 
are shorted. Ensure R.H is OFF. After inspection 
try again.  

 

 

 

 

7.  Press EXIT when both tests are OK. 

 

 Warning 

Failure to pass both tests will result in erroneous 
measurements. 

Component Measuring Guidelines 

 

Background 

For measuring Impedance, Capacitance, 
Inductance, and Resistance, series or parallel 
equivalent circuit models are available. Usually a 
component manufacturer will specify how a 
component should be measured and at what 
frequency. If not, use the guidelines below. Select 
the equivalent circuit and frequency according to 
the component value. For more information about 
equivalent circuit models and theory see page 124. 

General Inductors 

Inductors have always traditionally been 
measured in series equivalent circuits. For large 
inductors a lower test frequency yields more 
accurate results. For small inductors, higher 
frequencies are more accurate.     

Test 

Frequency 

Expected Inductance 

<10uH 10uH~1mH 1mH~1H  >1H 

 

0.1kHz 

 

 

 

Series 

 

1kHz 

 

 

Series 

 

 

10kHz 

 

Series 

 

 

 

100kHz Series