Справочник Пользователя для National Instruments PCI-1428

measurements on household appliances, portable tools, and other 
similar equipment.

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Installation Category I—for measurements performed on circuits not 
directly connected to mains

1

. Examples include measurements on 

circuits not derived from mains, and specially-protected (internal) 
mains-derived circuits.

Figure 2-1 illustrates a sample installation.

Figure 2-2.  Sample Installation

You can install the PCI-1428 in any available PCI expansion slot in your 
computer. However, to achieve the best noise performance, leave as much 
room as possible between the PCI-1428 and other boards and hardware.

You must install the NI-IMAQ driver software before installing the 1428 device. For 

information on how to install NI-IMAQ, see the Getting Started with Your IMAQ System 
document and the NI-IMAQ Release Notes.

Use the following guidelines for installing the PCI-1428:

1.

Verify that NI-IMAQ is installed on your computer.

2.

Turn off and unplug your computer.

To protect yourself and the computer from electrical hazards, the computer 

should remain off until you finish installing the PCI-1428.

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Mains is defined as the electricity supply system to which the equipment concerned is designed to be connected for either 
powering the equipment or for measurement purposes.