Voltage Measurement Configuration
Input Channels
The meter has two independent input channels for measuring dc Volts.
You can make measurements on either or both channels, measure the
difference between the channels, or measure the ratio between the
channels. Each channel has an independent settings for null and range.
The figure on page 19 shows connections for two input channels.
• Channel 1 is the default input channel. Both channels use the same
integration time setting.
• The maximum measurable input on Channel 1 is 120V, on
Channel 2 is 12 V.
• For two channel operation, the maximum voltage difference between
Channel 1 LO and Channel 2 LO is ±150 V.
• For either channel, the maximum non-destructive input is ±150 V.
• If you enable input filters, the filters are active for both input
channels. Switching between the channels will reset the digital filter
reading count (see page 57).
Channel • Front Panel operation: Toggle the input channel by pressing the
Channel key on the front panel. The CH1 or CH2 annunciator will
light in the display. The meter keeps range and null settings
independently for each channel.
Scan
Shift Channel Choose the scan mode to alternately show the CH1 and CH2 readings.
Disable the digital filter when using the scan mode. In scan mode, the
meter alternates between the CH1 and CH2 readings every 3 seconds
or for each measurement (whichever is longer).
Chapter 3 Features and Functions
Voltage Measurement Configuration
66
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