TSI Instruments ACCUBALANCE 8371, Руководство по эксплуатации и обслуживанию

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Set-Up 9
The AccuBalance
®
capture hood will begin to display values on a
continuous basis. When you are ready to read a value, press the
SAMPLE
button or the button on the top of the right handle. The
display will show the word “
SAMPLE
” for the length of time as
determined by the
TIME CONSTANT
. When the sample is complete,
the unit will beep and the value will remain on the display until
SAMPLE
is pressed again and the meter will return to continuous
measuring mode.
If the readings are fluctuating, adjust the
TIME CONSTANT
to a slower
value. Changing the
TIME CONSTANT
is detailed in the Keypad
Function section of Chapter 2
When making a flow measurement, keep objects out of the flow
path at the base of the AccuBalance
®
capture hood (one foot
clearance minimum). However, it is acceptable to have a hand
supporting the air capture hood at the bottom of the base.
Notice : The AccuBalance
®
capture hood must be kept in place
during the entire sample interval and until the time-averaged
measurement appears on the display.
Turning the AccuBalance
®
Air Capture Hood Off
To turn off the AccuBalance
®
capture hood, simply press the
ON/OFF
button.
Automatic Shut-off
The AccuBalance
®
capture hood will automatically shut itself off if
no switches or buttons have been pressed for 10 minutes. This
feature minimizes accidental loss of battery power. This feature
may be disabled by changing the factory settings. This is discussed
in the
DIP Switch Setting section of the next chapter.