Lock Function (Continuous Measurement); Targeting Laser; Size Of Measuring Surface - Distant-To-Spot Ratios (D/S) - Testboy TV 325 Instrucciones De Empleo

Lock function (continuous measurement)

The Testboy
lock function. To activate continuous measurement, press the "Up" key (ar-
row pointing upwards) on the operating panel with the device switched on.
You can see that the lock function is active as "Lock" is shown in the display.
To disable continuous measurement, press the "Up" key again.
You can switch the laser and the background illumination on and off during
continuous measurement.

Targeting laser

When the laser is turned on, the laser point shows you the approximate mid-
dle of the measuring surface. This makes more exact measurements possi-
ble. When the instrument is turned on, you can activate the laser by pressing
the "measure key" and the "down key". Hold until the laser symbol appears
in the LCD display. Now when you press the temperature measurement key,
the laser beam will point at the middle of the surface to be measured. In ad-
dition, the LED spotlight provides additional illumination for poorly lit meas-
urement objects. Press the "measure key" and the "down key" again until the
laser symbol disappears. This will turn off the laser.

Size of measuring surface - distant-to-spot ratios (D/S)

In order to get accurate measuring results, the object to be measured must
be larger than the measuring surface of the infrared thermometer. The de-
tected temperature is then the average temperature of the measured surface
area. The smaller the object is the shorter the distance to the infrared ther-
mometer should be. The exact size of the measurement area can be seen in
the following diagram. This is also printed on the outside of the instrument.
For exact measurements, the object to be measured should be at
least twice the size of the measured surface area!
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Testboy TV 325
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TV 325 can be turned to continuous measurement using the
Functions
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