NIDMM_ATTR_AUTO_ZERO

Specific Attribute

Data type	Access	Coercion	High-Level Function
ViInt32	R/W	None	niDMM_ConfigureAutoZeroMode

Description

Specifies the Auto Zero mode.

Defined Values

NIDMM_VAL_AUTO_ZERO_AUTO (default)	-1	NI-DMM chooses the Auto Zero setting based on the configured function and resolution.
NIDMM_VAL_AUTO_ZERO_OFF	0	Disables Auto Zero. Note  The NI 4065 does not support this setting.
NIDMM_VAL_AUTO_ZERO_ON	1	The DMM internally disconnects the input signal following each measurement and takes a zero reading. It then subtracts the zero reading from the preceding reading. Note  For NI 4065 devices, Auto Zero is always ON. Auto Zero is an integral part of the signal measurement phase and adds no extra time to the overall measurement.
NIDMM_VAL_AUTO_ZERO_ONCE	2	The DMM internally disconnects the input signal following each measurement and takes a zero reading. It then subtracts the zero reading from the preceding reading. Note  The NI 4060/4065 does not support this setting.