Milwaukee 2281-20 User Manual

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Milwaukee 2281-20
14
EN
Technical Data
* applies for 100 % target reflectivity (white painted 
wall), low background illumination, 25 ºC
** applies for 10 to 500 % target reflectivity, high back-
ground illumination, - 10 ºC to + 50 ºC
*** Tolerances apply from 0.05 m to 10 m with a confi-
dence level of 95%. The maximum tolerance may 
deteriorate to 0.1 mm/m between 10 m to 30 m and to 
0.2 mm/m for distances above 30 m
**** applies for 100 % target reflectivity, background 
illumination of approximately 30'000 lux
Message Codes
If the message Error does not disappear 
after switching on the device repeatedly, 
contact the dealer.
If the message InFo appears with a 
number, press the Clear button and 
observe the following instructions:
Care
• Clean the device with a damp, soft cloth.
• Never immerse the device in water.
• Never use aggressive cleaning agents 
or solvents.
Distance measurement
Typical Measuring Tolerance* ± 1.5 mm / 0.06 in ***
Maximum Measuring 
Tolerance**
± 2.5 mm / 0.10 in ***
Range of target plate
60 m / 197 ft
Typical Range*
60 m / 197 ft
Range at unfavourable 
condition ****
50 m / 164 ft
Smallest unit displayed
0.1 mm / 1/32 in
Ø laser point
at distances
6 / 30 / 40 mm
(10 / 50 / 60 m)
General
Laser class
2
Laser type
635 nm, < 1 mW
Protection class
IP54 (dust- and splash 
water protected)
Autom. laser switch off
after 90 s
Autom. power switch-off
after 180 s
Battery durability (2 x AAA)
up to 5000 measure-
ments
Dimension (H x D x W)
117 x 57 x 32 mm
4.6 x 2.4 x 1.3 in
Weight (with batteries)
0.14 kg / 4.938 oz
Temperature range:
- Storage
- Operation
-25 to 70 °C
-13 to 158 °F
-10 to 50 °C
14 to 122 °F
Functions
Distance measuring
yes
Min/Max measuring
yes
Permanent measuring
yes
Stake-out
yes
Addition/Subtraction
yes
Area
yes
Volume
yes
Pythagoras
2-point, 3-point
Memory
10 displays
Beep
yes
Illuminated display
yes
Multifunctional endpiece
yes
No.
Cause
Correction
204
Calculation error
Perform measurement 
again.
252
Temperature too 
high
Let device cool down.
253
Temperature too 
low
Warm device up.
255
Received signal too 
weak, measuring 
time too long
Change target surface 
(e.g. white paper).
256
Received signal too 
high
Change target surface 
(e.g. white paper).
257
Too much back-
ground light
Shadow target area.
258
Measurement 
outside of meas-
uring range
Correct range.
260
Laser beam inter-
rupted
Repeat measurement.