Remote Interface Reference 4
Keysight 34420A User’s Guide 145
Specify the resolution in the same units as the measurement function, not in
number of digits. For example, for volts measurements, specify the resolution in
volts. For resistance, specify the resolution in ohms.
You must specify a range to use the resolution parameter.
Using the READ? Command
The READ? command changes the state of the trigger system from the “idle” state
to the “wait-for-trigger” state. Measurements will begin when the specified
trigger conditions are satisfied following the receipt of the READ? command.
Readings are sent immediately to the output buffer. You must enter the reading
data into your bus controller or the meter will stop making measurements when
the output buffer fills. Readings are not stored in the meter’s internal memory
when using the READ? command.
Sending the READ? command is like sending the INITiate command followed
immediately by the FETCh? command, except readings are not buffered
internally.
<resolution>
Parameter
Integration Time
(NPLC)
< 0.0001 x Range 0.02
< 0.00001 x Range .2
< 0.000003 x Range 1
< 0.0000022 x Range 2
< 0.000001 x Range 10
< 0.0000008 x Range 20
< 0.0000003 x Range 100
< 0.00000022 x Range 200
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