Contents
Contents
1Safety and disposal.............................................................................. 3
1.1 About this document..............................................................................3
1.2 Security ..................................................................................................3
1.3 Warning notices .....................................................................................4
1.4 Disposal .................................................................................................5
2Description of the instrument ............................................................... 6
2.1 Use.........................................................................................................6
2.2 Overview of testo 440 ............................................................................6
2.3 Display overview ....................................................................................7
2.4 Magnetic holder .....................................................................................8
2.5 Power supply .........................................................................................9
2.6 Probe overview ....................................................................................10
2.6.1 Compatible cable probe ........................................................10
2.6.2 Compatible Bluetooth®probe ...............................................11
2.6.3 Compatible NTC probe .........................................................11
2.6.4 Compatible Smart Probes .....................................................12
3Operation........................................................................................... 12
3.1 Commissioning ....................................................................................12
3.2 Switching the testo 440 on/off .............................................................13
3.3 Making basic settings ..........................................................................14
3.3.1 Establishing a Bluetooth®connection ...................................14
3.3.2 Setting power options ...........................................................15
3.3.3 Setting the ambient conditions..............................................16
3.3.4 Configuring the unit system...................................................17
3.3.5 Setting the date and time ......................................................17
3.3.6 Setting the language..............................................................18
3.3.7 Showing general device information .....................................18
3.3.8 Humidity adjustment..............................................................19
3.3.9 Resetting the instrument or probe to default settings ...........20
3.4 Managing saved measurement data....................................................20
3.4.1 Printing ..................................................................................23
3.4.2 CSV export ............................................................................24
3.5 Carrying out measurements.................................................................26