To Make Voltage Ratio And Difference Measurements - Agilent Technologies 34420A User Manual

Chapter 2 Front-Panel Operation

To Make Voltage Ratio and Difference Measurements

To Make Voltage Ratio and Difference Measurements
To calculate a voltage ratio, the meter measures the voltages applied
to the Channel 1 input terminals and Channel 2 input terminals. The
calculation is as follows:
Difference = ((Ch 1 voltage
(
Ch 1 voltage
Ratio =
(Ch 2 voltage
DIFFERENCE
RATIO
Maximum input signal on Channel 1 is 120 Vdc, the meter will
autorange on the actual input or can be manually set.
Maximum input signal on Channel 2 is 12 Vdc, the meter will
autorange on the actual input or can be manually set.
Maximum voltage difference between Channel 1 LO and
Channel 2 LO is 150 Vdc.
Null, if used, is independent for each channel. An additional null* of
the difference can also be made. If null is used on either input channel,
the 'Null' annunciator will flash when the difference function is
selected. If you null the difference, the 'Null' annunciator will be
steady.
*The difference null is only available from the front panel.
Ch 1 Null ) (Ch 2 voltage
Ch 1 Null )
Ch 2 Null )
Ch 2 Null ))
RED
DC Voltage
CH1 BLACK
CH2 GREEN
DC Voltage
WHITE
2
*
Null
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