Device Calibration Signal Connections for AO Series Devices
Self-Calibration
When you self-calibrate your AO Series device, no signal connections are necessary. However, values generated on the analog output channels change during the calibration process.
External Calibration
When externally calibrating your AO Series device, connect the signals as described below for the type of AO Series device you are calibrating. Set the reference voltage between +6.000 V and +9.999 V. 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 for AO Series devices:
- Connect the positive output of your reference voltage source to the EXT REF terminal.
- Connect the negative output of your reference voltage source to the AO GND terminal.
For more information about calibration procedures for static AO devices, refer to the device documentation or to Calibration Procedures.