Section 17: Frequently asked questions Model 2601B-PULSE System SourceMeter Instrument Reference Manual
17-2 2601B-PULSE-901-01A April 2020
How do I optimize performance?
The primary factors that affect measurement accuracy and speed are:
• Warm-up: For rated measurement accuracy, allow the 2601B-PULSE to warm up for at least two
hours before use.
• Speed setting: The speed setting affects both speed and accuracy. For more information, see
Setting speed (on page 4-60).
• Autozero: Autozero can be disabled to increase speed at the expense of accuracy (for more
information, see Disabling autozero to increase speed (on page 17-2)).
Disabling autozero to increase speed
Disabling autozero (setting it to OFF) can increase measurement speed. If autozero is disabled,
accuracy will drift with time and temperature.
Turning autozero OFF will disable the autozero function and possibly increase measurement speed.
To minimize drift, setting autozero to ONCE will perform an autozero operation one time (at the time
when it is selected), and then disable the autozero function. For a more detailed discussion of
autozero, see Autozero (on page 4-41).
When the pulser is enabled, autozero is automatically disabled.
To configure autozero from the front panel:
1. Press the CONFIG key, and then select MEAS from the menu.
2. Select AUTO-ZERO, and then press the ENTER key or the navigation wheel .
3. Select the mode (OFF, ONCE, or AUTO), and then press the ENTER key or the navigation wheel
.
4. Press the EXIT (LOCAL) key to the normal display.
Refer to Remote command autozero (on page 4-42) for details about configuring autozero from a
remote interface.
How do I upgrade the firmware?
For information on upgrading the firmware, see Upgrading the firmware (on page 8-5).
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