Setting
the
“Area”
parameter / Activating
shape:
Five areas can be stored for the “Area” parameter. Three shapes are defined
in the default setting (one rectangles: edge length a and b, one circle:
diameter d, any shaped area: cross-section area A). The dimensions of the
areas can be adapted in the instrument. It is possible to reassign the shapes
using the PC software (435-2/-4 only).
When K-factor activated (see chapter
DEVICE, p. 13): An offset factor is stored
for each area. If parts of an area are covered (e.g. grilles on ventilation
openings), this can be calculated out using the offset factor. What must be
indicated is the free part of the area (20% covered --> 80% free area -->
offset factor 0.8).
For measurements made at outlets and volume flow regulators with defined
differential pressure measurement points, a component-specific correction
factor (k-Vol) prescribed by the manufacturer can be entered instead of the
area input.
For measurements at ventilation outlets with a funnel the parameter Funnel
must be activated. The funnel set (order no. 0563 4170) consists of a funnel
for measurements at plate outlets (200 x 200mm) and a funnel for
measurements at ventilation outlets (330 x 330mm) in combination with the
testo 435 and with the 100mm vane probe 0635 9435.
The main menu is open, Menu is displayed.
1 testo 435-2/-4 only: Parameter .
2 Press / to select Area and confirm with .
3 Press / to select the shape by which the area is to be described
and confirm the input with .
4 Press / to set the parameter(s) and confirm each one with .
- The settings are applied and the last shape to be set is activated.
6.2.7 Cyclical Print (435-1/-3 only)
The Cyclical Print function can be activated/deactivated. A measuring program
for cyclical printing can be programmed. This enables readings (up to 999) to
be printed in a defined measuring cycle (min. 1min). The readings are sent to a
Testo printer.
OK
OK
OK
OK
6. Setting the instrument 25
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