NI Digital Multimeters Getting Started Guide 6 ni.com5. Installing the HardwareCautions Unless you are using a USB device, you must power off the PC or PXI chassis beforeinstalling the DMM hardware.To prevent damage due to ESD or contamination for all PXI, PCI, and PCI Express devices, handlethe DMM by the metal bracket or edges. Refer to the Read Me First: Safety and Radio-FrequencyInterference document for more information.Notes Install the NI-DMM software before installing the hardware.Refer to the Appendix B: Chassis Recommendations and System Considerations section for moreinformation about installing the DMM in a PC or PXI chassis.Installing a PXI DMMTo determine if your DMM is a PXI or PXI Express compatible DMM, refer to Figure 2. To install aPXI DMM, refer to Figure 1 and complete the following steps.Figure 1. PXI Installation1. Power off and unplug the PXI chassis.2. Slide the PXI DMM into an available slot until the ejector handle locks in the up position, andtighten the captive screw(s).3. Plug in and power on the PXI chassis.1 PXI Chassis 2 Ejector Handle 3 Captive Screw 4 PXI DMMNI PXI-104223 41