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152 Multimeter Command Reference Chapter 3
Example Query the Resolution
VOLT:DC:RES 1E-03
Set resolution to 1 mV.
VOLT:DC:RES?
Query multimeter to return the present resolution.
enter statement
Enter value into computer.
ZERO:AUTO
[SENSe:]ZERO:AUTO <mode> enables or disables the autozero mode. Autozero
applies to dc voltage, dc current and 2-wire ohms measurements only. 4-wire ohms
and dc voltage ratio measurements automatically enable the autozero mode.
Parameters
Comments • You can substitute decimal values for the OFF (“0”) and ON (“1”) parameters.
• The ON parameter enables autozero. This is the default parameter which
causes the multimeter to internally disconnect the input signal following each
measurement and make a zero measurement. The zero reading is subtracted
from the input signal reading to prevent offset voltages present on the
multimeter’s input circuitry from affecting measurement accuracy.
• The OFF parameter disables autozero. In this mode the multimeter takes one
zero measurement and subtracts it from all subsequent input signal
measurements prior to a change in function, range or integration time. A new
zero measurement is made following a change in function, range or integration
time. This mode increases measurement speed because a zero measurement is
not made for each input signal measurement.
• Autozero ONCE issues an immediate zero measurement and can be used to get
an update on the zero measurement for a specific input signal measurement.
This helps to increase measurement time since you update the zero reading
without making zero measurements for every measurement.
• *RST Condition: ZERO:AUTO ON (enables autozero mode)
Example Disable Autozero
ZERO:AUTO OFF
Autozero disabled.
ZERO:AUTO?
[SENSe:]ZERO:AUTO? queries the autozero mode. Returns one of the following
responses to the output buffer:
• “0” (OFF or ONCE) if autozero is disabled or set for one time.
• “1” ON if autozero is enabled.
Example Query the Autozero Mode
ZERO:AUTO?
Queries the autozero mode.
enter statement
Enter response into computer.
Parameter Name Parameter Type Range of Values Default Units
<mode>
boolean OFF|0|ON|1|ONCE none