2.2
Push Buttons
2.2.1
Center (Yellow) Function Switch
Turns ON the Thermo-Hygrometer and selects the %RH or °C/°F setting.
Slide the button to OFF after use.
2.2.2
Back-Light
•
Press the
•
Press the
•
Press the
°C or °F. The temperature scale °C or °F is displayed in the lower right
hand corner of the display.
2.2.3
MAX Button
•
Press the MAX button to enter the MAX mode. The "MAX" annunciator
appears in the upper right hand corner of the display.
•
The selected range (%RH or °C/°F) records and updates the maximum
absolute values.
•
Press the MAX button again to exit the MAX-recording mode ("MAX"
goes out).
•
The HOLD button may be used in the MAX mode to "Freeze" (no longer
updates) the MAX measurement on the display.
2.2.4
HOLD Button
The Hold button "freezes" the reading on the display. Press the "HOLD"
button to toggle (activate/release) HOLD. In the HOLD mode, the "HOLD"
annunciator is displayed in the upper part of the LCD display and the last
reading is displayed until released.
Thermo-Hygrometer Model CA846
and °C/°F Button
button to turn the Back-Light ON.
button again to turn the Back-Light OFF.
button for 2 seconds to change the temperature scale to
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