Device Calibration Signal Connections for M Series and NI 6010 Devices

Self-Calibration

When you self-calibrate your M Series or NI 6010 device, no signal connections are necessary. However, values generated on the analog output channels change during the calibration process. If you have external circuitry connected to the analog output channels and you do not want changes on these channels, you should disconnect the circuitry before beginning the self-calibration.

External Calibration

When externally calibrating your M Series or NI 6010 device, connect the signals as described below for the type of device you are calibrating. Set the reference voltage between +6.0 V and +8.5 V for M Series devices, between +3.5 V and 4.0 V for NI 6010 devices. Typically, you use a calibrator or other stable voltage source for the reference voltage. Do not use a power supply as its signals are not very stable.

Follow these steps:

1. Disconnect any external connections or circuitry to your device.
2. Connect the positive output of your reference voltage source to physical channel ai0.
3. Connect the negative output of your reference voltage source to physical channel ai8.
4. If your reference voltage source and your computer are floating with respect to each other, connect the negative output of your reference voltage source to the AI GND terminal as well as to physical channel ai8.