WPI EVOM Manual - Page 37

EVOM™ Manual
World Precision Instruments 33
For Windows users that can not use a USB keydrive, or
only have one USB port, or for Linux OS or Mac OS users
1. For Windows, Linux or Mac users that already have Python 3.8.0 or higher
installed, skip to step 2. If you do not have Python installed, download and install
Python for your operating system from www.python.org . Be sure to download
the version appropriate for your operating system. The minimum supported
Python version is Python 3.8.0
2. Make sure all the Python libraries are available as keyboard, serial and glob. From
a command line window, run these commands (all lower case) :
pip install glob
pip install serial
pip install keyboard
3. Download the le EVOM™ Manual digital output archive for your operating
system from https://www.wpiinc.com/support/software-download/. This archive
has all the Python program les to use the external data output.
4. Extract the les to a WPI directory or a directory of your choice.
5. Connect the EVOM™ Manual to the USB port of the PC. The active remote
connection port for the EVOM™ Manual service port is in the back of the unit as a
USB-B connector [ marked in red].
Fig. 49—Plug the USB-B (red) connector into the port on the back of the EVOM™ Manual.
6. Open Python or a command window on your system.
7. At a command line or from python type this command : python WPI_
EVOMCNX_3.E.py and press enter. If you are not running Python from the
directory where WPI_EVOMCNX_3.E.py was extracted, you will have to change
directory to that location.
8. Enter the lename for the Output File (ENTER for WPI_EVOM_Manual.csv). Type in
a lename and add the .csv extension or enter to accept the default.
9. Enter the time between readings in seconds. (ENTER for minimum delay.) Enter a
time of 0, 1, 2 or 5 seconds. (0 is fastest at about 0.3 seconds.) The program will
run and update until ^X (control X) is typed. The readings are continuous at 12.5
Hz, always on. The time entered is the averaged 20s/s reading taken at that time
interval. Note: 2 seconds is recommended.