TESTO 445 - Pressure Probe Initialization and Velocity Activation

Initializing pressure probe / Activating velocity and volume flow
17
4. Parameter settings
Differential pressure probe (testo 445 only):
Activating/deactivating m/s, m
3
/h, in addition to mbar;
initialisation
Velocity probes (testo 445 only):
Activating/deactivating m
3
/h, in addition to m/s
Zero adjustment of differential pressure probe (hPa) and
return to current measurement.
Switch velocity speed (m/s) in the display on and off.
 Switch ON/OFF
The respective flashing setting is confirmed with .
Switch volume flow (m3/h) in the display on and off.
 Switch to ON/OFF
OFF flashes  return to measurement.
ON blinkt  Input of duct cross-section:
22.73
11::
2:
M.05
MAN
N.0017
mbar
m/s
td°C
hhppaa
=0 m/s
ON OFF
m/s
ON OFF
m3/h
Once the cross-section is entered, return to the current volume flow measurement.
/
= scroll
value
=
Next
position
A
B
Ø
Ø
AxB
FUNNEL
m
2
100. cm
0.500 m
2
20
100. cm
100, cm
Ø = round duct cross-section;
enter diameter.
AxB = rectangular duct;
enter side lengths A and B.
m
2
= known cross-section
area in m
2
; enter cross-
section area.
FUNNEL = Funnel factor in
volume flow funnel used
(See Instruction manual on
volume flow funnel).
...
...
The setting functions are activated in accordance with
reading line selected - flashing cursor in display.
i