© National Instruments Corporation
A-1
SC-207X Series User Manual
Appendix A
Specifications
This appendix contains specifications for the SC-207X boards. These specifications are typical at 25
°
C unless
otherwise noted.
Analog Input
Number of channels ................................................................Eight differential, 16 single-ended
Field connections ....................................................................36 labeled or numbered screw terminals with direct
connection to all analog and digital signals on
multifunction DAQ board
Cold-junction temperature sensor
Accuracy ..........................................................................
±
0.5
°
C from 0
°
to 110
°
C
Output ..............................................................................10 mV/
°
C, jumper selected on channel 0
Compensation ..................................................................Performed by software on host computer
Conditioning capability ...........................................................Seven open component positions per channel that
include connections from each input to ground, +5 V,
each other, and series connections to the inputs of the
DAQ boards
Breadboarding Area
SC-2070 and SC-2071 ............................................................10.2 by 3.8 cm (4.0 by 1.5 in.)
SC-2072 ..................................................................................10.9 by 7.6 cm (4.3 by 3.0 in.)
Feedthrough size .....................................................................0.09 cm (0.0351 in.) diameter on 0.25 cm (0.1 in.)
center spacing
Features ...................................................................................Eight undedicated screw terminal connections
40 feedthroughs connected to +5 VDC
40 feedthroughs connected to ground
Voltage available.....................................................................+5 V and DGND, on two bus strips
Power Requirement (from DAQ board)
+5 VDC ...................................................................................5 mA (typ with no user circuitry connected)
Note:
The power specifications pertain to the power supply of the host computer when using internal power or
to the external supply connected at the +5 V screw terminal when using external power. The maximum
power consumption of the SC-2070 board is a function of the signal conditioning components installed
and any circuits constructed on the general-purpose breadboard area. If the board is being powered
from the host computer, the m5 V current draw is fuse-limited to 800 mA.
Содержание SC-207 Series
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