Velleman EVM439 Notice D'emploi page 4

• Use the original packaging if the device is to be transported.
• All modifications of the device are forbidden for safety reasons.
• Only use the device for its intended purpose. Using the device in an unauthorised
way will void the warranty.
• Readings may be affected if the unit is operated within radio frequency
electromagnetic field strength of about 3 volts per meter, but the performance
of the instrument will not be permanently affected.
Note: under an EM field of 3V/m from 350 to 550MHz, the maximum error is
8°C (14.4°F).
• This device contains a class 2 laser (Output power < 1 mW, wavelength
635~660nm). DO NOT STARE INTO BEAM, eye damage may result.
4. Features
• non-contact infrared laser thermometer
• LCD display with backlight
• temperature readout in °C or °F
• Continues Real-Time maximum data
• hold mode
• Auto power-off (± 15 sec.)
• 'trigger-to-scan' temperature function
5. Use
• Simply aim the infrared lens (4) at the target and press the Meas. key (6) to
display the target's surface temperature. A red laser spot will appear on the target
during measurement. The distance to target ratio is 8:1, meaning that at e.g. 8
cm, the target must be larger than 1 cm to have a proper measurement. Make
sure the target area is within this field of view.
00 (30/09/2008)
EVM439
4
Display example
1. LCD display
2. Mode key
3. Battery cover
4. Infrared lens
5. Laser
6. Meas. Key