Testboy TV 325 Mode D'emploi page 22

Operation
Explanation of the buttons
Direction keys
The "Up" (2) and "Down" (3) buttons are used to activate
functions like background illumination, laser, lock mode,
selection F/°C; they are also used to navigate through the
menu.
MODE key
You can switch between the various measurement functions
in the display by pressing the MODE key (4):
Measurement is interrupted during the hold function!
Temperature measurement key
Press the (5) key to start measuring the temperature.
Temperature measurement
To measure the temperature point the IR sensor's opening towards the object to be measured
and press the key to measure the temperature.
Make sure that the measurement spot size is not larger than the object to be measured. The
currently detected temperature is shown in the LCD. To locate the hottest spots of an object,
point the Testboy TV 325 at a location outside the desired area. Then search for the hottest
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point by moving the detector across the surface of the object in a zigzag pattern holding down the
temperature measurement key all the while until you find the warmest spot.
After releasing the temperature measurement key the temperature detected will be shown in the
display for approximately 60 seconds. During this time, "HOLD" will be shown. The device will
switch itself off to save batteries after approximately 60 seconds.
Choose the unit you wish to be displayed (°C/°F) using the "AB" key. The laser, when it is turned
on, shows the mid-point of the measurement area approximately. This means you can easily
make accurate readings. To activate the laser, press the temperature measurement key and the
"Down" key until the laser is turned on. The LCD then shows the laser symbol. To turn the laser
off again, press the temperature measurement key and the "Down" key again until the laser
symbol disappears.
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Testboy TV 325
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