©
National Instruments Corporation
5
SCXI-1104 Calibration Procedure
6.
Call
MIO_Config
to enable dithering on your E Series device. Set the
following parameters:
•
deviceNumber
—The value obtained from Measurement &
Automation Explorer
•
dither
—1
•
useAMUX
—0
7.
Connect the calibrator to the appropriate analog input, starting with
channel 0. Refer to Figure 1 to determine the pins on the 96-pin front
connector that correspond to the positive and negative inputs of the
specified channel. For example, the positive input for channel 0
(CH0+) is pin C32. The negative input for channel 0 (CH0–) is pin
B32. If you are using an SCXI-1300 breakout module connected to the
SCXI-1104, connect your calibrator to the CH0+ and CH0– inputs.
8.
Call
SCXI_Single_Chan_Setup
to configure the module for
single-channel measurements. Set the following parameters:
•
SCXIchassisID
—The value obtained from Measurement &
Automation Explorer
•
moduleSlot
—1
•
moduleChan
—The channel you are verifying
•
DAQdeviceNumber
—The device number assigned by
Measurement & Automation Explorer for the E Series DAQ
device
9.
Set your calibrator to output the test point voltage from Table 1.
10. Call
DAQ_Op
. Set the following parameters:
•
deviceNumber
—The device number of the DAQ device
•
channel
—0
•
gain
—1 for 16-bit E Series devices or –1 for 12-bit E Series
devices
•
count
—100
•
sampleRate
—100
11. Call
SCXI_Scale
. Set the following parameters:
•
SCXIChassisID
—The value obtained from Measurement &
Automation Explorer
•
moduleSlot
—
1
•
channel
—The channel you are verifying
•
SCXIgain
—0.1
•
TBgain
—
1
•
DAQboard
—The device number for the DAQ device
