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Chapter 3. Programming Site Data
Transport® Model PT878 Portable Liquid Flowmeter User’s Manual 59
3.10 Entering the Digital Output (cont.)
a. Press [ENTER] to open the text box.
b. Use the numeric keys to enter the desired value.
c. Press [ENTER] to confirm your selection.
For Polarity:
a. Press [ENTER] to open the drop-down menu.
b. Scroll to the desired polarity, either Low to High or High to Low.
c. Press [ENTER] to confirm your selection.
If you selected Frequency:
The prompt asks for the minimum and maximum frequencies and the duty
cycle percentage. For each parameter:
a. Press [ENTER] to open the text box.
b. Use the numeric keys to enter the desired value.
c. Press [ENTER] to confirm your selection.
If you entered Test Points:
The prompt asks for the window (trigger) type from two choices, transmit
and receive. These two windows can be used to trigger an oscilloscope to
look at the receive signal output on another channel.
a. Press [ENTER] to open the drop-down menu.
b. Scroll to the desired signal.
c. Press [ENTER] to confirm your selection.