Safety guidelines for hazardous voltages – National Instruments NI 9217 User Manual

Page 3

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© National Instruments Corp.

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NI 9217 Operating Instructions and Specifications

Hot Surface

This icon denotes that the component may be

hot. Touching this component may result in bodily injury.

Safety Guidelines for Hazardous Voltages

If hazardous voltages are connected to the module, take the
following precautions. A hazardous voltage is a voltage greater
than 42.4 V

pk

or 60 VDC to earth ground.

Caution

Ensure that hazardous voltage wiring is

performed only by qualified personnel adhering to local
electrical standards.

Caution

Do not mix hazardous voltage circuits and

human-accessible circuits on the same module.

Caution

Make sure that devices and circuits connected to

the module are properly insulated from human contact.

Caution

When module terminals are hazardous voltage

LIVE (>42.4 V

pk

/60 VDC), you must ensure that devices

and circuits connected to the module are properly
insulated from human contact. You must use the NI 9939
connector backshell kit to ensure that the terminals are
not accessible.

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