FLIR MR77, Руководство пользователя

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5 Operation
3. The dew point temperature is displayed on the main display. The IR tempera-
ture of the surface is displayed on the secondary display. The bar graph indi-
cates the level of risk for condensation:
• If the IR temperature is more than 14 ℃ (25 ℉ ) above the dew point tem-
perature, the bar graph is empty.
• If the IR temperature is 3–14
℃
(5–25
℉
) above the dew point tempera-
ture, the bar graph indicates a percentage of full scale.
• If the IR temperature is less than 3 ℃ (5 ℉ ) above the dew point tempera-
ture, the bar graph is full.
4. Release the button to disable the IR sensor and the laser pointer diode.
The last IR temperature reading remains on the display for 8 seconds; then
the meter returns to a display of the ambient air temperature and the in-
dicator disappears.
5.6 Vapor pressure measurements
Vapor pressure measurement is a special variant of condensation measurement.
The meter calculates the vapor pressure based on measurements of the relative
humidity and the IR temperature of the surface.
1. Press the button to enter Condensation mode. The indicator is
displayed. The unit of measurement on the main display is
℃
or
℉
, depend-
ing on the unit setting.
2. Press the button once more to enter Vapor pressure mode. The unit
of measure on the main display changes to kPa or mBar, depending on unit
setting.
3. Aim the meter at the surface. Press and hold the button.
4. The vapor pressure is displayed on the main display. The IR temperature of
the surface is displayed on the secondary display.
5. Release the button to disable the IR sensor and the laser pointer diode.
The last IR temperature reading remains on the display for 8 seconds; then
the meter returns to a display of the ambient air temperature and the in-
dicator disappears.
#T559822; r. AE/ 10036/10036; en-US 17
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