MEGABRAS MD-5060x Guia Del Usuario página 29

value of Rx will be measured with an insignificant error. For example: Let us con-
sider Rx = 3.000 MΩ and R1 = R2 = 100 MΩ, the reading without using the
GUARD terminal would be 187.5 MΩ, which is quite wrong. On the other hand, if
the GUARD terminal is properly used, we would have 3.000 MΩ.
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