OfiTE 900, Инструкция по эксплуатации, Страница: 22 / 58

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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a. Press MUD . The following steps will be performed. At each interval,
the viscometer stabilizes and then records a reading. If you prefer
not to wait for the 10 minute Gel test, you may hit NEXT to cancel that
particular operation, while still obtaining readings on everything else
that was measured.
1) Mixing Speed
2) 600 RPM for 15 seconds
3) 300 RPM for 10 seconds
4) 10 second Gel (Wait 10 seconds)
5) Mix for 10 seconds
6) 10 minute Gel (Wait 10 minutes)
b. After the completion of the test, the following is displayed:
1) “PV” =
2) “YP” =
3) “10 Sec Gel” =
4) “10 Min Gel” =
PV is always displayed in cP. YP is displayed in the shear stress units
selected in SET UP (see page 19 to set shear stress units).
8. CEM
By pressing this button once, the viscometer will automatically
measure, calculate and display shear stress dial readings as per
API Recommended practice 10. This automation enables the technician
to simultaneously perform other tasks. It also assures increased
accuracy and reproducibility, as each test is conducted in the same
manner and for the same time periods.
a. Press CEM . The viscometer will automatically begin ramping up
to 300 RPM and back down, taking readings at specific intervals
along the way. At each interval, the viscometer maintains the RPM
speed for 10 seconds for stabilization and then records a reading. If
you prefer not to wait for the 10 minute Gel test, you may hit NEXT
to cancel that particular operation, while still obtaining readings on
everything else that was measured. The RPM intervals at which data
is gathered include:
1) 3 RPM
2) 6 RPM
3) 30 RPM
4) 60 RPM
5) 100 RPM
6) 200 RPM
7) 300 RPM
8) 200 RPM