Taking Measurements - VOLTCRAFT HT-200 Bedienungsanleitung

Display lighting
The display lighting is activated by depressing the „HOLD" button for 2 seconds.
MIN/MAX function
Only the minimum or maximum value is shown in the display during continuous
measurements. This measurement function makes it easier for you to determine
peak values.
Press the „MIN/MAX" (3) button to activate this function. The active function is indi-
cated in the display by „MIN" or „MAX". To deactivate this function, depress the
„MAX/MIN" button (3) for two seconds.
°C /°F/ WET BULB/ DEW POINT measuring functions
Button (4) for switching over the display units can be used to determine the display
of the second measuring value in addition to relative humidity. Each time the button
is pressed, the display switches between the following display values:
°C
°F
WET BULB
DEW POINT
The „WET BULB" evaporation temperature and the „DEW POINT" temperature can
be displayed in °C or °F. The temperature unit selected is shown in the display.

Taking measurements

Never immerse the temperature/humidity sensor (1) in liquids. The
high-quality HT-200 brand sensor is only designed for measuring
humidity.
The sensor is a highly-sensitive semi-conductor component. Do
not expose the sensor to direct sunlight and do not touch it.
Observe the permissible ambient temperatures (Technical Data) to
avoid faulty measurements.
To measure the humidity, switch the HT-200 on by pressing the „ON/OFF"
button (5).
Once the device is switched on, the current humidity will be displayed in %RH as
well as the current temperature in °C. The response time for measuring humidity is
10 seconds. Wait until the display value has stabilised. If the measuring range is
exceeded, „OL" (Overload) will be shown in the display.
Using the button (4) for switching over the display units, it is possible to change to
the temperature display, as described in the „Device functions" section.
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Displays the current temperature in degrees Celsius
Displays the current temperature in degrees Fahrenheit
Displays the evaporation temperature at the curr ent humidity
Displays the dew point. The dew point is the temperature at
which humidity condenses.