Configuring Auto Zero
To enable, enable once, or disable Auto Zero:
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Note The NI 4050 does not support Auto Zero. |
LabVIEW—Use niDMM Configure Auto Zero.
CVI, C++, or Visual Basic—Use niDMM_ConfigureAutoZeroMode.
| AUTO (default) | -1 | NI-DMM chooses the Auto Zero setting based on the configured function and resolution. |
| OFF | 0 | Disables Auto Zero.
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| 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.
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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. |
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| ONCE | 2 | The DMM internally disconnects the input signal for the first measurement and takes a zero reading. It then subtracts the zero reading from the first reading and the following readings.
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Note The NI 4060/4065 does not support this setting. |
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