Section 3
3-61
Test Voltage:
a number greater than or equal to 15.7 must be entered here for a
valid measurement configuration. Resistance measurements are
generally done at a 10 mW power level on the Rs resistor. Note that
Test Voltage is the voltage applied to the Rx resistor.
Max Voltage:
a number greater than or equal 15.7 and greater than Test Voltage
must be entered here for a valid measurement configuration. It is the
maximum voltage that the Rs and Rx resistors can safely handle.
Once editing is complete press the <Ok> softkey to accept the changes made, then
press and release the <PREVIOUS> key several times until the display returns to
the Main Menu.
Step 5) Now that you are back to the Main Menu proceed to the <Measure>
menu to start the measurement, as in the Normal- mode.
3.8.4. Resistance Measurement - Low Ohms.
Typically Rs = 1 , Rx 100 m. This setup requires an external high current power
supply and Guildline model 6623 Range Extender. A typical "Low Ohms" measurement
configuration, using the model 6623 Range Extender is shown in Figure 3-9.
Ratio measurements made with the Guildline Range Extender should be made such that the
condition :
Rs = (Rx) x (EXTENDER RATIO)
is maintained.
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