2600S-901-01 Rev. C / January 2008 Return to Section Topics 4-7
Series 2600 System SourceMeter® Instruments Reference Manual Section 4: Basic Operation
Front panel auto zero
Set the auto zero from the front panel as follows:
1. Press the CONFIG key, and select MEAS from the menu.
2. Select AUTO-ZERO, then press ENTER or the Rotary Knob.
3. Select the desired mode (OFF, ONCE, or AUTO), and then press ENTER or the Rotary
Knob.
4. Press EXIT as necessary to return to the normal display.
Remote command auto zero
Use the auto zero command with the appropriate option shown in Table 4-5 to set auto zero via
remote. (See Section 4 for more details). For example, send the following command to turn
automatic reference measurements on:
smua.measure.autozero = smua.AUTOZERO_AUTO
Table 4-5
Auto zero command and options
Command
1
Description
smuX.measure.autozero = smuX.AUTOZERO_OFF
smuX.measure.autozero = smuX.AUTOZERO_ONCE
smuX.measure.autozero = smuX.AUTOZERO_AUTO
Disable auto zero.
2
Force one ref and zero.
Force ref and zero with each mea-
surement.
*smuX = smua for the Model 2601/2611/2635; smuX = smua (Channel A) or smub (Channel B) for
the Model 2602/2612/2636.
**Old NPLC cache values will be used when auto zero is disabled. See "NPLC caching" earlier in
this section.
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