TSI Incorporated VelociCalc Plus 8384, Руководство по эксплуатации и обслуживанию

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Operation 9
new value which can be adjusted from 0.01 to 999.9. Use the

to
scroll through the K
f
choices, then press
ENTER
to accept the choice.
NOTE: This measurement can only be made with the thermal
anemometer sensor, not the Pitot tube.
•
If pressure units (in H
2
O, mm Hg, Pa, hPa, or mm H
2
O) are chosen:
Use

keys to select the K factor, then press
ENTER
to accept the
choice. The K factor choices will be shown in the following order: last 5
values used, then a new value which can be adjusted from 0.01 to 999.9.
You can zero the pressure while in flow rate from pressure mode by
pressing and holding the pressure key for three seconds. The unit will
double beep to confirm that the pressure has been zeroed.
NOTE: This
measurement method is intended for use with diffusers with pressure
taps and a manufacturer-supplied K factor.
When measuring velocity or flow rate, and the measurement type is
changed, the next time the
VELOCITY/FLOWRATE
key is pressed, the last
measurement used will be displayed. For example, if you were measuring
flow rate, switched to measuring humidity, and then back to
VELOCITY/
FLOWRATE
, the V
ELOCI
C
ALC
Plus will go back to displaying flow rate. If
you were measuring velocity, then humidity, and returned to
VELOCITY/
FLOWRATE
, the instrument will return to velocity.
PRESSURE
(zero) Key (Models 8385/8385A/8386/8386A Only)
Press and release to display pressure. Press and hold for three seconds to
zero the pressure reading. The unit will double beep to confirm that the
pressure has been zeroed.
NOTE: Make sure that all tubing is disconnected
or open to ambient conditions before zeroing .
TEMPERATURE
Key
Press and release to display temperature on the large digits instead of
showing it on the small digits. Temperature is usually displayed on the small
digits when other measurement types are on the large digits.
NOTE: For temperature and humidity measurements, make sure that at
least 3 inches (7.5 cm) of the probe is in the flow to allow the temperature
and humidity sensors to be in the air stream.