Somat eDAQlite - 4.3 Running a Test

Somat eDAQ lite
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I2773-4.4 en
NOTE
For quadrature decoder channels, the eDAQ lite resets the internal counter value to
zero before performing a zero adjust.
Delete Calibration
Delete the calibration to clear the calibration date field and modify calibration-related
parameters before recalibrating the channel.
Shunt Calibration Loop
Not applicable to the eDAQ lite .
4.2.3 Calibration Specifications
ELHLS and ELBRG Channels
To measure calibration signal voltages for ELHLS and ELBRG channels, the
eDAQ
lite down samples the A/D converter subsystem by a factor of 1000 or 960
(depending on the MSR) to 100 or 102.4, respectively, using a Butterworth 8-pole
digital filter with a 15-Hz break frequency. The eDAQ
lite manipulates the signal
conditioner gains and offsets in an auto ranging mode to yield near maximum
resolution of the input signal (i.e., the eDAQ
lite sets the gains as high as possible).
The eDAQ
lite acquires one A/D sample to determine the signal voltage of the input
channel.
High Level Channels
For most high-level input channels (i.e., pulse counter, vehicle bus, serial bus and GPS
input channels), the eDAQ
lite acquires a set of data samples at the user-specified
sample rate and averages these to provide a single signal value for calibration
purposes. If the sample rate is 50 Hz or more, the eDAQ
lite uses 100 data samples.
Otherwise, the uses a number of data samples equal to twice the sample rate (down
to the minimum of one data sample).
Thermocouple Channels
For standard thermocouple input channels, the eDAQ lite uses only one data sample
to provide a single signal value for calibration purposes.
4.3 Running a Test
Use the controls in the Test Control menu or in the toolbar to perform test run tasks.
Alternatively, use the Control Panel, opened from the Test Control menu, for quick
access to common test run tasks. The Control Panel also shows a continuously
updating display of the amount of RAM and PC Card memory available for data
storage.
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