Initializing the Micro-Tech
Test Duration
2-12 Micro-Tech 9101/9201 Reference Manual, Rev J Thermo Fisher Scientific
(If this number is less than 3, you must lengthen the time of the
test so that the belt completes the required minimum of three
complete revolutions.)
3. Because one belt revolution takes 75 seconds to complete, it takes
375 seconds (5 x 75) to complete the required test revolutions. Thus,
—Time to complete the test revolutions = 375 seconds
4. In summary, the data we have collected so far is as follows.
—Belt length = 120 feet
—Time for one belt revolution = 75 seconds
—Number of revolutions needed for test = 5
—Time to complete the five test revolutions = 375 seconds
5. Now it’s your turn to collect your own data and enter it into Table
2–1 or Table 2–2.
You are now going to collect data from your own particular conveyor
system to determine the Test Duration. Here’s how.
1. Using a 100 ft tape measure, measure the length of the belt to the
nearest 0.1 feet. Enter the result for “Belt Length” in your
“Initialization Data Summary,” Table 2–1 or Table 2–2.
2. When the belt is stationary, draw a chalk line across the belt.
3. Start the belt and wait until it is running at maximum speed.
4. Use the chalk mark to time one complete revolution of the belt. Enter
the result (in seconds) in Table 2–1 or Table 2–2.
5. Calculate (to at least one decimal place) the number of revolutions
the belt makes in six minutes—as described in the example above.
Round up the number of revolutions to the next whole number. Enter
Manually
Determine Test
Duration
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