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Chapter 3. Programming Site Data
56 Transport® Model PT878 Portable Liquid Flowmeter User’s Manual
3.9 Entering the Analog Output (cont.)
3. The next prompt asks you to enter the zero (base) value for the analog
output. This value represents the 0/4 mA output (in flow units).
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.
4. The next prompt asks you to enter the span (full scale) value for the
analog output. This value represents the 20 mA output (in flow units).
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.
5. The last prompt, On Error, asks you to select how the PT878 will handle
the analog outputs in the event of a fault condition. The meter offers
three alternatives:
• Hold Last Value (hold the last good reading)
• Force Low (force the reading to 0 or 4 mA)
• Force High (force the reading to 20 mA).
a. Press [ENTER] to open the drop-down menu.
b. Scroll to the desired selection.
c. Press [ENTER] to confirm your selection.
You have completed entering data in the Analog Output option.
• To confirm the entries and return to Operate mode, press [F3] (OK). The
PT878 returns to Operate Mode.
• To leave the window without confirming the entries, press [F2] (Cancel)
or the
[ESC] key. The PT878 returns to Operate Mode.