GE PanaFlow MV80, User Manual

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PanaFlow™ MV80 & MV82 User’s Manual 63
Chapter 3. Operating Instructions
3.3.8 The Energy Menu for EMS Energy Meters Only
There are several possibilities regarding the measurement of water or steam energy, given the location of the meter and
the use of a second RTD.
Table 3 below summarizes the possibilities:
To use the above options, you must properly configure the meter in the Energy Menu (see Figure 60 on page 64 ) by
completing these steps:
1. Loc in Sent Flow? Select Yes or No based on where the meter is located. Refer to Table 3 above.
2.
Heating System?
Select
Yes
for a hot water system used for heating. Select
No
for a chilled water system used
for cooling. Always select
Yes
for a steam system.
3. % Returned. Select a number between 0% and 100% . Estimate the amount of water that returns. It is usually
100%, or can be less than 100% if historical data shows the amount of makeup water used. If a second RTD is
not used, set to 0%. When 0% is selected, the energy calculation represents the outgoing energy only (no return
energy is subtracted).
Note:
The meter ships from the factory assuming 0% return and has a 1000 ohm resistor installed in the RTD #2
wiring location. This needs to be removed if the meter is to be used in a manner other than with 0% return and
with the customer-supplied RTD in its place.
Table 3: Configuration Options
Fluid Meter Location Second RTD Measurement
Water “Sent” Flow Line “Return” Flow Line Change in Energy
Water “Return” Flow Line “Sent” Flow Line Change in Energy
Water “Sent” Flow Line None Outgoing Energy
Steam “Sent” Flow Line “Return” Flow Line (condensate) Change in Energy
Steam “Sent” Flow Line None Outgoing Energy