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Chapter 3. Programming Site Data
Transport® Model PT878 Portable Liquid Flowmeter User’s Manual 43
3.7 Entering the Energy Option Parameters (cont.)
2. The next prompt asks if you are using a heating or cooling system.
a. Use the [W] and [X] keys to scroll to the appropriate radio button.
b. Press [ENTER] to confirm your selection.
3. The program now asks if you are measuring flow at the point of supply
or return.
a. Use the [W] and [X] keys to scroll to the appropriate radio button.
b. Press [ENTER] to confirm your selection.
4. The final prompt asks if you wish to use the standard or Custom Cp
method for energy calculations. If you choose Custom Cp, you must
enter tables for fluid enthalpy and density in the Custom Cp tab (see
page 46).
a. Use the [W] and [X] keys to scroll to the appropriate radio button.
b. Press [ENTER] to confirm your selection.
Pressing the [
S] key returns the meter to the Energy prompt, and then to
the Energy Option tab.
• 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.