Leica Geosystems Leica DISTO A3 - Manual (Page 8)

5 Appendix Leica DISTO™ A3 1.1.0 gb
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Technical Data
* maximum deviation occurs under unfavourable conditions
such as bright sunlight or when measuring to poorly
reflecting or very rough surfaces.
For distances over 30 m - without using a target plate - the
maximum deviation may increase to a maximum of ± 10 mm.
Measuring Conditions
Measuring Range
The measuring range is limited to 100 m.
At night, at dusk and when the target is shadowed
the measuring range without target plate is
increased.
Use a target plate to increase the measurement
range during daylight or if the target has a bad reflec-
tion.
Measuring Surfaces
Measuring errors can occur when measuring toward
colourless liquids (e.g. water) or dust free glass,
styrofoam or similar semi-permeable surfaces.
Aiming at high gloss surfaces deflects the laser beam
and measurement errors can occur.
Against non-reflective and dark surfaces the
measuring time can be increased.
Care
Do not immerse the unit in water. Wipe off dirt with
a damp, soft cloth. Do not use aggressive cleaning
agents or solutions. Treat the optical surfaces with
the same care that you would apply to eyeglasses
and cameras.
Range ( use target plate
for longer distances )
0.05 m to 100 m
0.2 ft to 328 ft
Measuring accuracy up
to 30 m (2
σ standard
deviation)
typ.: ± 3 mm*
Smallest unit displayed 1 mm
Laser class II
Laser type 635 nm, < 1 mW
Ø laser spot (at
distance) 6 / 30 / 60 mm
(10 / 50 / 100 m)
Automatic switch off after 180 s
Illumination of display 9
Minimum, Maximum,
Continuous Measuring 9
Addition/Subtraction 9
Historical storage 9 (19)
Battery life,
Type AAA, 2 x 1.5 V up to 5000
measurements
IP rating IP 54
splash proof, dust proof
Dimension and weight 135x45x31 mm, 145 g
Temperature range:
Storage
Operating
-25°C to +70°C
(-13°F to +158°F)
-10°C to +50°C
(-14°F to +122°F)