Programming instructions

Chapter 12 SC-204X Accessories
DAQ Hardware Overview Guide 12-2 www.ni.com
SC-2042-RTD Accessory
The SC-2042-RTD is a low-cost input accessory that connects directly to
RTDs and provides current source excitation and RTD input signal routing
to the Lab and 1200 Series devices, and the MIO and AI E Series devices.
The SC-2042-RTD has eight channels, each of which has one current
excitation source (1 mA) and differential input signal routing to the DAQ
device. The SC-2042-RTD works with RTDs from 10 Ω to 2 kΩ over their
full temperature range, 4-wire ohms measurements of up to 6 kΩ, and
overvoltage protection of 25 VDC.
To use the SC-2042-RTD, you must configure your DAQ device for
differential mode.
SC-2043-SG Accessory
The SC-2043-SG is a low-cost input accessory for bridge completion
and calibration of strain gauge bridge circuits and input signal routing to
the Lab and 1200 Series devices, and the MIO and AI E Series devices. The
SC-2043-SG has eight channels; each channel has one-quarter or one-half
(and full) bridge completion, a bridge-balancing circuit, and nonreferenced
single-ended input signal routing to the DAQ device. There is one
half-bridge reference common to all channels, with a jumper disable for
full-bridge connections. The excitation supply is external and is common
to all channels.
If you have configured your device in Measurement & Automation
Explorer, you do not have to call the NI-DAQ function
Set_DAQ_Device_Info or LabVIEW
Set_DAQ_Device_Information because NI-DAQ will retrieve the
SC-2043-SG settings from the configuration file.
Configure your DAQ device for NRSE mode to use the SC-2043-SG using
the NI-DAQ function
AI_Configure or LabVIEW AI_Config.vi or
AI_Hardware_Config.vi.