National Instruments CFP-CB-4 用户手册

Maximum cable diameter
for cFP-CB-1 and cFP-CB-3 ............ 8 mm (5/16 in.) with 

cable-grooved strain 
relief

Torque for screw terminals

cFP-CB-1 and cFP-CB-3............ 0.5–0.6 N

⋅ m 

(4.4–5.3 lb

⋅ in.)

cFP-CB-4.................................... 0.22–0.25 N

⋅ m 

(1.9–2.2 lb

⋅ in.)

Maximum current for terminals

1

V and C terminals....................... 4 A
All other terminals...................... 2 A

Cold-junction accuracy ..................... 0.15 °C typ, 0.3 °C max

There is typically an additional 0.2 °C difference between the 
temperature of the cold-junction sensor and that of the actual 
terminals.

Weight

cFP-CB-1.................................... 201 g (7.1 oz)
cFP-CB-2.................................... 135 g (4.8 oz)
cFP-CB-3.................................... 201 g (7.1 oz)
cFP-CB-4.................................... 141 g (5.0 oz)

Channel-to-earth ground

Continuous ................................. 250 V

rms

, 

Measurement Category II

Withstand.................................... 2,300 V

rms

, verified by a 2 s 

dielectric withstand test 

Channel-to-channel isolation ............ Refer to I/O module 

operating instructions

1  

Use fast-acting fuses to limit the current through screw terminals. Some I/O module 

terminals require a lower maximum current value. Refer to the I/O module operating 
instructions for more information.