Powerfix PTSI 9 A1 Manuel d'utilisateur télécharger pdf (Page 14)

PTSI 9 A1

Scanning a temperature deviation

♦ Press the measuring button and point the laser dot on the

spot to be measured. The temperature is shown in the display

♦ While scanning, hold the measuring button down and

move the laser dot slowly and continuously over the surface

to be measured. The temperature deviations between the

reference and measurement values are presented as follows:

Colour

display

Signal tone Result

Red fast

Upper temperature

threshold exceeded

Green not available

Within the temperature

threshold

Blue slow

Lower temperature

threshold not reached

Example of application

For example, to check the penetration of cold air into an interior

through a window, ﬁ rst scan the temperature around the frame

immediately adjacent to the closed window. Select the warmest

part of the frame as a reference temperature and then, for

example, a temperature diﬀ erence of 3°C/5°F.

Now scan again, evenly, all around the frame directly next to the

window. A possible ingress of cold air of more than 3°K diﬀ erence

is indicated by the blue colour display and by a slow signal tone

sequence.

Battery indicator

A battery icon appears in the display when the battery

voltage is too low.

♦ Insert a new battery as described in the section “Inserting/

Replacing the battery”.

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Powerfix PTSI 9 A1 Manuel d'utilisateur Page 14