Scanning
When a scan is configured, each channel can have its own unique relative offset value. For remote
programming, the channel list parameter is used to configure channels for a scan.
For example:
To attach a 1 µV relative offset level to a configuration, send the following commands:
-- Select DC volts function.
dmm.func = "dcvolts"
-- Reset DC volts only.
dmm.reset("active")
-- Set the relative offset level.
dmm.rel.level=1e-6
-- Enable relative offset.
dmm.rel.enable = dmm.ON
-- Call the configuration myconfig.
dmm.configure.set("myconfig")
-- Set channels 1001 to 1030 to use myconfig configuration.
dmm.setconfig("1001:1030", "myconfig")
-- Create scan list of channels 1001 to 1030 using myconfig.
scan.create("1001:1030")
Math calculations
The Series 3700A has three built-in math calculations:
• mX+b
• percent
• reciprocal (1/X)
The various instrument operations, including math, are performed on the input signal in a
predetermined order:
1. Measure made.
2. Overflow check is done on the measurement.
3. Filters are applied.
4. Relative offset is applied.
5. Math operations are applied.
6. Limit checking is performed.
Basic math operation
1. Select the measurement function.
2. Configure and enable the mX+b, percent, or reciprocal (1/X) math function.
3. Apply the signal to be measured to a switching channel input.
4. Close the input channel. The result of the math calculation is displayed when a reading is
triggered.
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