Initial Setup Operations:
Regulated Power Supply Voltage:
Module 1 (FP-AI-110) = 10V
Excitation voltage for pressure transducers = 10V
Module 2 (FP-AI-100) = 25V
Pressure Gauge:
Read pressure gauges and ensure the pressure is between 12 and 18 psi.
Gate Valve Settings:
Initially open all gate valves. Then close desired valves for various
configurations (pump 1 only, pump 2 only, both pumps in series, both pumps in
parallel).
Pump 1 only:
Valves 2, 4, and 7 closed
Valves 1, 3, 5, and 6 open
Pump 2 only:
Valves 1, 4, and 6 closed
Valves 2, 3, 5, and 7 open
Pump 1 and Pump 2 in Series:
Valves 2 and 6 closed
Valves 1, 3, 4, 5, and 7 open
Pump 1 and Pump 2 in Parallel:
Valve 4 closed
Valves 1, 2, 3, 5, 6, and 7 open
Flow Control Valve Settings:
Initially set flow control valve 5 to 6.5 (fully open). During operation ensure that at least
one flow control valve is at least partially open at all times. Counterclockwise rotation to
open; clockwise rotation to close.
Microsoft Excel Data Collection Spreadsheet:
Open “Large Pump Data.xls” from “C:\My Documents\Large Pump Experiment\Data
Collection”. By selecting entire rows and right clicking and using the delete option,
delete all rows of data leaving only the header row (see Figure 1). Save the file. This
will create a blank data collection sheet to begin with.
Select rows
of data here
Figure 1: Clearing the Excel Data Collection Sheet
LabView Calibration:
Open “Large Pump Experiment.vi” from “C:\My Documents\Large Pump Experiment”.
Run the vi, by clicking the run icon, for approximately 10 seconds or until the “channel
readings” stabilize. Stop the vi using the large red stop button on the control panel.
Press ctrl+t to tile the control panel and the diagram. Use the scroll bars on the control
panel window to make the “channel readings” visible. See Figure 2.
RUN ICON
STOP BUTTON
ZERO
FACTOR
CONTROL
SCROLL BAR
CHANNEL
READINGS
Figure 2: VI: control panel and diagram windows tiled.
On the diagram locate the zero factor control. Press the tab button until the pointer turns
to a “hand”. Change the channel number using the up/down arrows until the control
shows channel zero. Change the zero value to correspond with the channel reading on
the control panel (for example: 5.189 in figure 2). Do this for each channel (0-7). Once
this is completed, maximize the control panel window and use the horizontal scroll bar to
re-center.
Clear the excel data collection spreadsheet again per previous steps (see “Microsoft Excel
Data Collection Spreadsheet” section).