Setting The Area; Reading Absolute Pressure; Carrying Out A Reset Of The Setting Menus; Carrying Out A Reset Of The Measuring Instrument - TESTO 425 Instruction Manual

7 Using the product
◄
3 Press
and confirm with MENU/ENTER.

Setting the area

Configuration mode is open, "AREA" is displayed.

◄
1 Press
entered in m² or in mm² and confirm with MENU/ENTER.
◄
2 Press
MENU/ENTER.

Reading absolute pressure

Thanks to a built-in absolute pressure sensor (measurements are taken on the
measuring instrument, not on the probe head), no additional input of the air
density is required.
Configuration mode is open.

◄
1 Press
(absolute pressure) is displayed.

The current ambient air pressure is displayed.

Carrying out a reset of the setting menus

Configuration mode is open, "M. RES" (menu reset) is displayed.

◄
1 Press
MENU/ENTER:
o NO: Do not carry out reset.
o YES: Carry out reset. All concealed menus that were hidden
via the testo Smart App are displayed again.

The instrument returns to measurement view.
Carrying out a reset of the measuring
instrument
Configuration mode is open, "RESET" is displayed.

14
►
/ to set the required unit for the bottom line (m
►
/ to select whether the cross-sectional area is to be
►
/ to set the cross-sectional area and confirm with
► to scroll through the configuration menus until "P_ABS"
/
►
/ to select the required option and confirm with
3
/h, l/s, cfm)