
Patent No. 6,766,028 - OFI Testing Equipment, Inc.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Software
Onboard Program
Manager
From the Onboard Functions screen, you can create custom test programs
to be uploaded to the Model 900 unit. These programs can then be run from
the onboard control panel, without requiring the ORCADA
®
software.
1. Begin on the Main Screen. On the “Utilities” menu, choose, “900
Onboard Functions” then “Onboard Program Builder”. When the screen
opens, the unit will transfer the programs stored in the unit’s memory to
the PC. These will be displayed in the “Onboard Programs” list in the
upper left-hand corner of the screen.
2. If you are editing an existing onboard program, select the program name
from the “Onboard Programs” box and click the “>>” button. This will
copy the steps of the selected program into the “Program Steps” box
where they can be edited.
3. At the bottom of the screen, select the desired temperature units (°F/°C).
4. Enter the required information in the “Program Steps” box. To insert or
delete a row, click the corresponding “Program Actions” button.
a.
“Temperature”
- temperature setpoint
b.
“Time”
- time to heat the sample (mm:ss)
c.
“RPM”
- rotational speed
d.
“CMD Char” -
i.
“a”
- This option calculates the average shear stress over the
conditioning period.
ii.
“m”
- This option performs a mudsweep when both the
“Temperature” and “Time” conditions are met. During the
mudsweep, the rotor is turn at 300 RPM for 15 seconds,
then 600 RPM for 15 seconds, then the software
calculates plastic viscosity (PV) and yield point (YP).
e.
“Gel Time”
- time to let the sample stand before calculating gel
strength (mm:ss)
5. When you have finished entering all of the test steps, select a slot on
the “Onboard Programs” box and click the “<<” button. This will copy the
steps from the “Program Steps” box to the Model 900 unit. Each slot in
the “Onboard Programs” box corresponds to a program number on the
Model 900. The first slot will be #1 on the unit, the second slot will be #2,
etc.
If the slot you choose is already storing a program, that program will be
overwritten by the new one.