Wohler TI 410 Mode D'emploi page 13

4. Handling
Illust. 3.4:
Bar indication
Hold function
4. Handling
4.1 Use of the measuring instrument
The TI 410 is switched off by pressing the On/Off button.
Following switch-on, the measured ambient temperature appears in the
display. If there is a rise in humidity when e.g the flexarm is passed into an ex-
haust-gas pipe and the sensor plate is surrounded by exhaust gas flow from
both sides, then a one-to-four-step bar is seen in the display, depending on
the degree of humidity. As soon as the third bar is shown, a controlled alarm
tone additionally sounds. Moreover, the increased temperature of the exhaust
gas is shown.
4.2 Adjusting the sensitivity
Activating the button "SENS" a number of times lets you adjust in four steps
the sensitivity of the TI 410 to an increased humidity. The respective current
step is shown in the display. Step 4 is the most sensitive step.
4.3 Freezing the display indication
By pressing the button "HOLD", you have the possibility during the measuring
to freeze the indication, when for example inaccessible positions are to be
measured and subsequently readings are to be comfortably made.
Wöhler TI 410 Dew-point Indicator
Illust. 3.5:
Temperature unit
Fahrenheit
Illust. 3.6:
Initial picture with battery
symbol, bar indication,
both temperature units
and hold function