TSI Incorporated Alnor RVD, Руководство пользователя

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6
Selecting the Display Units
The RVD is capable of displaying the measured values in several different
measurement units, as shown in Table 2-1.
Table 2-1: Choices of Measurement Units
Velocity Temperature Flow Rate
ft/min °F ft
3
/min
m/s °C m
3
/h
l/s
If you wish to change the display units on your RVD,
see Appendix A.
The Rotating Vane Head
The rotating vane head of the RVD contains the velocity and temperature
sensors along with stored calibration data. When using the rotating vane head,
make sure the blades are free to move and the flow arrow points along the air
flow path.
WARNING! Be sure to turn the meter off before connecting or
disconnecting rotating vane heads. Do
not expose the
vane head to excessive heat; it can damage the vane
head.
Attaching the Handle
To attach the handle, screw the handle into the bottom of the rotating vane
head until secure.
Using the Articulating Extension
The articulating extension allows you to secure the vane head at nearly any
angle. Once you have attached the articulating extension to the vane head
and handle, you can then unscrew the angle adjustment bolt and adjust the
angle of the elbow. You can also adjust the rotation of the head by partially
unscrewing the head from the handle and tightening it with the knurled
knob, located underneath the vane head.
Using the Optional Small Vane Head
The smaller optional rotating vane head is primarily intended for tests with
constricted flow area or those difficult to reach. The small rotating vane
head functions like the large vane head. With the unit turned off, unplug the
large head from the instrument and plug in the small head and then turn the
unit on again.