Display Lighting - Testboy TV 326 Instrucciones De Empleo

Functions

Display lighting

With the instrument switched on and measuring button (3) pressed, the display background
lighting can be activated and deactivated by the button (7).
Target laser and LED
With the laser switched on, the laser ring points to the approximate size of the measurement
area. This makes it easier to make exact measurements. To activate the laser and the LED,
press the measuring button (3) and button (8). The symbol [1] appears on the LCD display. The
laser beam now points to the approximate centre of the measurement area. To deactivate, press
the measuring button and button "Down", the laser symbol goes off.
WARNING
Never point the laser beam towards the eyes directly or indirectly, via reflective
surfaces. Laser radiation can cause irreparable damage to the eyes. The laser
beam must be deactivated when measuring close to people.
Size of measurement area – distance to Spot Ration (D/S)
In order to attain more accurate measurement results, the measurement object must be greater
than the measurement area of the infrared thermometer. The temperature determined is the
average temperature of the area measured. The smaller the measurement object, the shorter the
distance must be to the infrared thermometer. The ratio distance to the size of the measurement
area 12:1 and can be taken from the following diagram.
Unit: mm
For accurate measurements, the measurement object should be a minimum of
double so large as the measurement surface!
20
®
Testboy TV 326