Brookfield PFT Powder Flow Tester Operating Instructions Manual page 62

which saves the stress data file in ADTG format (Access Database). The location of the raw data
file is found in the HELP menu under the "About" Tab.
Problem Resolution
If there are any technical issues when running the test, save the Technical Support Display file
(communications log between PFT and PC when using Powder Flow Pro software) which is
displayed on the Setup tab page.
Data Analysis
Average the values for major principal consolidation stress and unconfined failure strength from
all tests. Use the table in the attached document (BCR Limestone Calibration Verification Table)
to determine whether your PFT is in calibration.
Email the ADTG file for each test to Brookfield for our PFT records database, using
sales@brookfieldengineering.com.
Calibration Verification Tables
When running the flow function test described above, the average values for major principal
consolidating stress and unconfined failure strength should fall between the MIN PASS and MAX
PASS values in the tables below to verify calibration. Note that there are 5 levels of consolidating
stress. All stress and strength values listed are in units of kilopascals (kPa).
If the values are below MIN PASS or above MAX PASS, contact Brookfield or your local dealer
for service.
Consolidating Stress
MIN PASS
MAX PASS
Failure Strength
MIN PASS
MAX PASS
Consolidating Stress
MIN PASS
MAX PASS
Failure Strength
MIN PASS
MAX PASS
AMETEK Brookfield
STANDARD VOLUME SHEAR CELL (263cc)
1
st
0.566
0.658
0.471
0.613
SMALL VOLUME SHEAR CELL (43cc)
1
st
1.420
1.684
0.782
1.238
Page 62
2 3
nd rd
1.110 2.209
1.278 2.487
0.737 1.285
0.999 1.602
2 3
nd rd
2.969 6.004
3.227 6.372
1.305 2.142
1.965 3.066
4 5
th th
4.426 8.950
4.842 9.540
2.090 3.316
2.591 4.087
4 5
th th
12.11 24.66
12.63 25.65
3.220 5.318
4.999 8.015
Manual No. M09-1200-F1016