HP 34401A, User Manual

Page: 55 / 236

Resolution
Resolution is expressed in terms of number of digits the multimeter can
measure or display. You can set the resolution to 4, 5, or 6 full digits ,
plus a “ 1
⁄
2
” digit which can only be a “0” or “1”. To increase measurement
accuracy and improve noise rejection, select 6 1
⁄
2
digits. To increase
measurement speed, select 4
1
⁄
2
digits.
Applies to all measurement functions. The resolution for the math
operations (null, min-max, dB, dBm, limit test) is the same as the
resolution for the measurement function in use.
The correspondence between the number of digits selected and the
resulting integration time (in
power line cycles ) is shown below.
The autozero mode is set indirectly when you set the resolution.
See also “Autozero,” on page 59.
Resolution is local to the selected function. This means that you can
select the resolution for each function independently. The multimeter
remembers the resolution when you switch between functions.
Resolution Choices
Fast 4 Digit
* Slow 4 Digit
Fast 5 Digit
* Slow 5 Digit
(default)
* Fast 6 Digit
Slow 6 Digit
Integration Time
0.02 PLC
1 PLC
0.2 PLC
10 PLC
10 PLC
100 PLC
* These settings configure the multimeter just as if you had pressed
the corresponding “DIGITS” keys from the front panel.
Chapter 3 Features and Functions
Measurement Configuration
54