TESTO 440 - Page 4

Contents
3.5.1 Connecting the cable probe with testo 440 .......................... 26
3.5.2 Connecting the Bluetooth
®
probe with testo 440 ................. 26
3.5.3 Basic View ............................................................................ 27
3.5.4 Selecting application menus ................................................. 28
3.5.5 Volume flow application [Volume Flow] ................................ 29
3.5.6 Funnel volume flow application [Funnel Volume Flow] ......... 31
3.5.7 Pitot volume flow application [Pitot Volume Flow] ................ 33
3.5.8 K-factor volume flow application [K-Factor Volume Flow] .... 35
3.5.9 Heating/cooling load application [Heating/Cooling Load] ..... 36
3.5.10 Mold indication application [Mold Indication] ....................... 38
3.5.11 Turbulence measurement application [Draft Rate] ................ 40
3.5.12 Performing long-term measurement application [Logger
Mode] .................................................................................... 41
4 Maintenance ...................................................................................... 43
4.1 Battery replacement ............................................................................ 43
4.2 Cleaning testo 440 ............................................................................... 43
4.3 Calibration ........................................................................................... 43
4.4 Carrying out a firmware update ........................................................... 44
5 Technical data ................................................................................... 45
6 Tips and assistance ........................................................................... 47
6.1 Questions and answers ....................................................................... 47
6.1.1 LED status Bluetooth
®
probe ................................................ 47
6.1.2 Hot wire measurement not possible ..................................... 47
6.2 Accessories and spare parts ............................................................... 47
7 Authorisations and certification .......................................................... 49