Safety Guidelines For Hazardous Voltages - National Instruments 9211A User Manual

4-channel, 24-bit thermocouple input devices
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Safety Guidelines for Hazardous Voltages

Caution
Ensure that hazardous voltage wiring is performed only by qualified personnel
adhering to local electrical standards.
Do not mix hazardous voltage circuits and human-accessible circuits on the same
Caution
module.
Make sure that devices and circuits connected to the module are properly
Caution
insulated from human contact.
Caution
When module terminals are live with hazardous voltages, make sure that the
terminals are not accessible by using the high voltage screw terminal enclosure. Refer to
the
Assembling the High Voltage Screw Terminal Backshell
Software
© National Instruments Corporation
If hazardous voltages are connected to the module, take the following
precautions. A hazardous voltage is a voltage greater than 42.4 V
60 VDC to earth ground.
Software support for your hardware depends on the carrier being used.
Refer to Table 1 for a list of software support.
Table 1. Devices and Corresponding Components
Device
USB-9211
USB-9211A
Examples are included with each software API. Refer to the corresponding
software Getting Started Guide for more information.
Carrier
NI 9161
NI 9162
3
USB-9211/9211A User Guide and Specifications
pk
section for more information.
Software Support
NI-DAQmx Base
NI-DAQmx
or

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