TESTO 645 - Unit Selection and Factory Reset

26
°C °F
The selected parameter flashes.
 Select

confirms the selection.
m/s
fpm (ft/min) (testo 445 only)
The selected parameter flashes.
 Select

confirms the selection.
m3/h
m3/m (m3/min) m3/s
l/s cfm (ft3/min) (testo 445
only)
The selected parameter flashes.
 Select

confirms the selection.
hPa
mbar psi in W (”H2O) (testo 445 only)
The selected parameter flashes
 Select

confirms the selection.
Factory reset
Factory reset (confirm with ”Yes”) resets all of the settings in the
instrument configuration to the factory settings.

confirms the selection and switches to the display of the cur-
rent setting.
6. Instrument configuration
Unit selection / Factory reset
°C
m
m3
Unit
hPa
mbar
20.0
51.8
2:
2:
M.05
MAN
N.0017
°C
%RH
Current measurement

Factory reset
The
ESC
Location
button enables you to change to the current
measurement from every menu item.
i
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