8100 : Performing a Ratio Measurement (8104 Only)

Modified on Wed, 3 Mar, 2021 at 8:24 AM

Note - Application note applies to firmware version 1.0.7 onwards.


To enter Ratio mode, select the function that the ratio is to be performed on (i.e. DC Voltage). Configure for either manual range (best performance) or auto range measurement.

Press the INPUT key to display the input menu which will indicate the currently active input along with the RATIO soft key which allows access to the Ratio submenu.

If the multimeter is already in a Ratio Mode the RATIO key will be highlighted in YELLOW text, if not already in a ratio mode the key will be WHITE.

Pressing the RATIO soft key will display the ratio submenu which provides access to all ratio modes.


The multimeter will enter Ratio Mode and start performing measurements. The screen indicates the current measurement state (stabilising or averaging) as well as the calculated ratio.


The available ratio modes as of V1.0.7 are listed below : 



Mode [Soft key Text]
Description
Front : Rear [F:R]
In this ratio mode the measurement from the FRONT terminals is divided by the measurement from the REAR terminals.
Rear : Front [R:F]
In this ratio mode the measurement from the REAR terminals is divided by the measurement from the FRONT terminals.
Value
In this ratio mode the measurement from the REAR terminals is used to correct for internal errors of the multimeter, the scaling factor of which is used to correct the measurement on the FRONT terminals.
Front - Rear [F-R]
In this ratio mode the measurement from the REAR terminals is subtracted from the measurement on the FRONT terminals.
Rear - Front [R-F]
In this ratio mode the measurement from the FRONT input is subtracted from the measurement on the REAR terminals.



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