Manual Distanciometro

Table of Contents Title
I II III IV V VI VII UT391 Product Introduction Unpacking Inspection Safety Instruction Meter Structure Setting and Operation of Meter Technical specifications Maintenance 3 4 5 9 12 23 28

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I UT391 Product Introduction UT391, Handheld Laser Distance Meter, is specially designed for users. It is a meter with high-precision and multi-function distance measurement.UT391 can measure distance, area and volume, Pythagorean Laws can also be used in UT391 to measure indiectly.UT391 which is light, easy to use and reliable to measure,can make sure your measurement more accuracy, easier and faster. UT391 can widely apply to Construction, Upholster, Property, Traffic, Fire-Fighting, Gardens, Urban Planning, Water Mornitoring, Electric Power Overhaul,etc. As thereplacer of traditional measuring instrument(for example,measuring tape),UT391 is your best choice.
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II Unpacking Inspection Unpack and check, if there is any damage or loss, contact with the nearest local sales service agency. 1. Mainframe one unit 2. User manual one copy 3. AAA battery(2×1.5V) one piece 4. Carrying case one unit 5. Mini screwdriver one piece

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III Safety InstructionPermitted use ● Measuring distances ● Computing functions, e. g. areas and volumes ● Indirect Measuring with Pythagorean Prohibited use ● Using the instrument without instruction ● Using outside the stated limits ● Deactivation of safety systems and removal of explanatory and hazard labels ● Opening of the equipment by using tools (screwdrivers, etc.), as far as
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● ● ● ● ●

not specificallypermitted for certain cases Carrying out modification or conversion of the product Use of accessories from other manufacturers without the express approval of UNI-T. Deliberate or irresponsible behavior on scaffolding, when using ladders, when measuring near machines which are running, or near parts of machines or installations which are unprotected Aiming directly into the sun or glareDeliberate dazzling of third parties; also in the dark Inadequate safeguards at the surveying site (e.g. when measuring on roads, construction sites,etc.)
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Laser classification The UT391 produced a visible laser beam which emerges from the front of the instrument. Laser Class II products: Do not stare into the laser beam or direct it towards other people unnecessarily. Eye protection is normallyafforded by aversion responses including the blink reflex. WARNING Looking directly into the beam with optical aids (e.g. binoculars, telescopes) can be hazardous.
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Precautions: Do not look directly into the beam with optical aids. CAUTION Looking into the laser beam may be hazardous to the eyes. Precautions: Do not look into the laser beam. Make sure the laser is aimed above or below eye level.8

IV Meter Structure Keypad 1. ON / MEAS (On/measuring) button 2. Area / volume button 3. Indirect measurement button 4. Continuous measurement button 5. Plus (+) button 6. Minus (-) button 7. Storage button 8. Reference level button 9. Illuminating button 10. Clear/off button
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LCD Display 1 Laser active 2 Reference level (front) 3 Reference level (rear) 4 Reference level (End piece)5 Continuous measurement 6 Instrument error warning 7,8,9,10,11 Variable measuring functions Length measurement Area measurement Volume measurement
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Indirect (2 times) measurement Indirect (3 times ) measurement 12 Battery status 13 Historical memory, call up values 14 First value display line, minimum value 15 Second value display line, maximum value 16 Third value display line 17.Summary line for last measure or calculation result

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V Setting and Operation of Meter Switching on and off Switches on the instrument and laser. Press this button lo longer to switch off the instrument.. The instrument switches off automatically after three minutes of inactivity.

CLEAR button The last action is cancelled or the data display is cleared.
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Reference level setting...