14
THE SMOKE TEST
(ASTM METHOD D2156)
The smoke test accessory, shown below, is required to perform smoke tests. If you
wish to take a measurement of the smoke using the smoke spot method, press and
hold the PUMP button for 3 seconds. The pump will stop and the first screen
shown below will appear on the display.
The instrument is waiting for you to take out a piece of the smoke paper and insert
it in the cut out provided in the probe handle. To do this you must first loosen the
thumbscrew to make room for the paper and then screw it back tightly so that there
is no leak. When you are ready, push the ENTER key.
The smoke test will begin and the display will read “Running 1:26” and will count
down. The pump will be on and drawing a sample at 750 cc/min. At the end of the
test the pump will stop again and the message “Completed!” will appear. Remove
the smoke paper as instructed. Tighten the thumbscrew to avoid any leaks and push
any button to continue with your measurements. Take out the smoke chart that
comes with the instrument and compare the paper's discoloration with the standard
shades of grey on the chart. The number corresponding to the closest match is the
smoke number.
0 1 2 3 4 5 6 7 8 9
SMOKE TEST
Enter to Begin
Shift to Abort
SMOKE TEST
Running 1:26
Shift to Abort
SMOKE TEST
Completed!
Remove Paper
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