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My USB-6008/USB-6009 Ouputs Incorrect Voltage Readings

Hardware: Multifunction DAQ (MIO)>>Portable>>USB-6009

When I connect my signals to the analog input channels of my NI USB-6008/6009, I receive readings that are unexpected. This is regardless of the input configuration. What is reason for this and how can I fix this problem?

The reason for this is that you could have the channels labeled incorrectly.  To fix this issue first, check to make sure you are actually reading the analog input channels with the specified input terminal configuration. 

When you receive the NI USB-6008/6009, there are labels that you are supposed to adhere to the device. Make sure you place Labels 1 - 16 on the Analog side of the device and Labels 17 - 32 on the Digital side of the device.

Below are the pinouts for the NI USB-6008/6009. Make sure each channel corresponds to the correct input pin. 

Figure 1: NI USB-6008/USB-6009 Analog Pin Diagram and Table


Figure 2: NI USB-6008/USB-6009 Digital Pin Diagram and Table

Another thing to note is that the pinouts for the NI USB 6008/6009 OEM cards are not the same as the pinouts for the non-OEM version.  If you are using the OEM version, the correct pin diagrams (shown below) are found in the NI USB 6008/6009 OEM User Guide.  Please note that the pinout diagram in Measurement and Automation Explorer is for the non-OEM version.  If you are using the correct pinouts and are still reading incorrect values from your USB device, please contact National Instruments Technical Support.

Pinout diagram for the USB 6008/6009 OEM

Figure 3: NI USB-6008 OEM/USB 6009 OEM Pin Diagram

Related Links:
Product Manuals: USB-6008/6009 User Manual
KnowledgeBase 3RH97BRM: USB-6008/6009 Analog Input Reads Approximately -1.4V Offset with RSE Connections



Report Date: 03/10/2006
Last Updated: 09/21/2017
Document ID: 3V9J741O

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