General Guidelines - Velleman DVM439 Manual Del Usuario

1.3.
• This device is battery-operated, using 2 type AAA, 1.5V batteries.
• Protect this device from shocks and abuse. Avoid brute force when operating the
device.
• Protected the device against extreme heat (see "Technical Specifications"), dust
and moisture.
• Familiarise yourself with the functions of the device before actually using it.
• 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.
1.4.
• 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
1.5.
00 (30/06/2008)

General Guidelines

Features
Use
DVM439
Display example
1. LCD display
2. Mode key
3. Battery cover
4. Infrared Lens
5. Laser
6. Meas. Key
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