National Instruments PCI-6251 User Manual

1-6 | ni.com
Chapter 1 Getting Started
4. Replace the computer cover, and plug in and power on the computer.
5. Self-calibrate the PCI Express DAQ device in MAX by following the instructions in the
Device Self-Calibration section.
Note Connecting or disconnecting the disk drive power connector can affect the
analog performance of your device. To compensate for this, NI recommends that you
self-calibrate after connecting or disconnecting the disk drive power connector, as
described in the
Device Self-Calibration section.
Getting Started with M Series USB Devices
The following sections contain information about M Series USB device features and best
practices.
Applying the Signal Label to USB Screw Terminal
Devices
(USB-622
x/625x/628x Screw Terminal Devices) The supplied signal label can be adhered to
the inside cover of the USB-62xx Screw Terminal device with supplied velcro strips as shown
in Figure 1-2.
Figure 1-2. Applying the USB-62xx Screw Terminal Signal Label
USB Device Chassis Ground
(USB-622
x/625x/628x Devices) For EMC compliance, the chassis of the USB M Series device
must be connected to earth ground through the chassis ground.
The wire should be AWG 16 or larger solid copper wire with a maximum length of 1.5 m (5 ft).
Attach the wire to the earth ground of the facility’s power system. For more information about
earth ground connections, refer to the KnowledgeBase document, Earth Grounding for Test and
Measurement Devices, by going to
ni.com/info and entering the Info Code earthground.

National Instruments PCI-6251 Specifications

General

Brand	National Instruments
Model	PCI-6251
Category	I/O Systems
Language	English