National Instruments CFP-CB-4 用户手册

下载
页码 20
© National Instruments Corp.
15
cFP-CB-1/2/3/4
Safety Guidelines for Hazardous Locations
The cFP-CB-x is suitable for use in Class I, Division 2, Groups A, 
B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4 
and Ex nA IIC T4 hazardous locations; and nonhazardous 
locations only. Follow these guidelines if you are installing the 
cFP-CB-x in a potentially explosive environment. Not following 
these guidelines may result in serious injury or death.
Caution
Do not disconnect I/O-side wires or connectors 
unless power has been switched off or the area is known 
to be nonhazardous.
Caution
Do not remove modules unless power has been 
switched off or the area is known to be nonhazardous.
Caution
Substitution of components may impair 
suitability for Class I, Division 2.
Specifications
The following specifications are typical for the range –40 to 70 °C, 
unless otherwise noted.
Installation
Terminal wiring
1
cFP-CB-1 and cFP-CB-3............ 16–26 AWG copper 
conductor wire with 6 mm 
(0.24 in.) of insulation 
stripped from the end
cFP-CB-2.................................... 18–22 AWG copper 
conductor with 7 mm 
(0.28 in.) of insulation 
stripped from the end
cFP-CB-4.................................... 16–28 AWG copper 
conductor with 9 mm 
(0.35 in.) of insulation 
stripped from the end
1  
Use only copper conductor wire unless you are working with a sensing device, such 
as a thermocouple, that requires a different type of wire.