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SGSM
Drag Check
Before running a gel strength test, it is recommended you perform a drag
check in the software. Run the drag check in air.
Always perform a drag check after calibrating the transducer. During the drag
check, the SGSM will run at 2 RPM and the total time for the drag check will be
33 sec.
1. Carefully screw the assembled SGSM top cap onto the test cell.
The cell cap should turn smoothly in the test cell threads. If you encounter
resistance, stop turning and unscrew the cap slightly. Then continue
turning until the cap is completely tightened.
2. Once the cap is completely tightened, unscrew it one quarter turn. This
will facilitate disassembly later.
3. Install the SGSM head to the base.
4. Connect the SGSM Head to the UCA with the LPT cable. See page 11.
5. To get to the Drag Check screen in the software click Utilities
→
Drag
Check and select “Run”.
6. Allow the test to run for 33 seconds and select “Save”.
7. Repeat the drag check test to ensure consistency.
The test must have a peak drag less than 85 grams. If the value jumps
wildly from one check to the next, this is an indication that there is a
problem with one or more of the components of the system (bushing,
shaft, load cell, etc.). You will need to inspect the SGSM assembly for
problems. See page 68 for troubleshooting instructions.