TESTO 570 Series - Delta T

7 Using the product
34
7.2.6 Delta T
Temperature 1 and temperature 2 are measured. The difference is shown on
the display as the delta temperature.
Two testo 115i (clamp thermometers) or fixed cable probes are used to
carry out the measurement.
✓
The instrument is switched on and the measurement menu is
displayed.
✓
The steps described in the Preparing for measurement section have
been followed/carried out.
✓
testo 115i is switched on.
1
Place the testo 115i at the measuring points.
2
Press [Menu/Enter].
3
Press [▲] / [▼] to select Measuring
Mode and press [Menu/Enter] to
confirm.

The Measuring Mode menu is
displayed.
4
Press [▲] / [▼] to select Delta T and press [Menu/Enter] to confirm.