Leapfrogging - Suggested Sequence for Maximum Throughput
Leapfrogging is a procedure for running low and high pressure systems simultaneously to maximize throughput. This process describes leapfrogging a group of eight samples. It is possible to leapfrog groups of samples continuously.
If samples require longer vacuum preparation or heated evacuation, increase the throughput by preparing samples in a vacuum oven. |
- Prepare and weigh eight samples. Load eight penetrometers with samples then weigh them. Complete the Sample Data Worksheet and install samples 1 through 4 in the low pressure ports.
- Create sample files for at least the first four samples.
- Go to Unit [n] > Low pressure analysis to start the low pressure analysis.
- When the run is complete, remove samples 1 through 4 from the low pressure ports and weigh them. Install samples 5 through 8 in the low pressure ports.
- Start another low pressure run.
- Place samples 1 and 2 in the high pressure chambers.
- Go to Unit [n] > High pressure analysis to start the high pressure analysis.
While waiting for analysis to complete, samples files can be created and other samples can be prepared for analysis. |
- When the high pressure run is complete, remove samples 1 and 2 from the high pressure chambers and replace with samples 3 and 4.
- Start another high pressure run.
- Automatic reports specified in each sample file will print when that sample’s high pressure run ends.
- When the second low pressure run and the second high pressure run end, remove samples 3 and 4 from the high pressure chambers. Remove samples 5 through 8 from the low pressure ports and weigh them.
- Install samples 5 and 6 in the high pressure chambers. Start another high pressure run.
- When the third high pressure run is finished, install samples 7 and 8 in the high pressure chamber and start another high pressure run.
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