Wohler TI 410, Operating Manual

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Handling
21
EN
7 Handling
7.1 Use of the meas-
uring instrument The TI 410 is switched on and off by pressing the
On/Off button.
After switching on the device, all display possibili-
ties appear in the display. During this short stabili-
zation phase, the device will redetermine the zero
point for the measurement of the dew point.
NOTE!
Please take care that the sensor is located in dry
air during the stabilization phase.
After that, the measured ambient temperature
appears in the display. If there is a rise in humidi-
ty, 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 second
bar is shown, a controlled alarm tone additionally
sounds. Moreover, the increased temperature of
the exhaust gas is shown.
7.2 Adjusting the
sensitivity Activating the button ”SENS” a number of times
lets you adjust the sensitivity of the Wöhler TI 410
to an increased humidity in four steps. The re-
spective current step is shown in the display. Step
4 is the most sensitive step.
7.3 Freezing the dis-
play indication By pressing the button ”HOLD”, you have the
possibility during the measuring to freeze the indi-
cation, when for example inaccessible positions
are to be measured and subsequently readings
are to be comfortably made.
7.4 Changeover of
the temperature
indication Simultaneous pressing of the ”HOLD” and
”On/Off” buttons; when the meter is switched on,
lets you change between the degree celsius and
degree fahrenheit indications.