EN Technical Data

Distance measurement

Typical Measuring Tolerance* ± 1.5 mm / 0.06 in ***

Maximum Measuring

± 2.5 mm / 0.10 in ***

Tolerance**

 

Range of target plate

60 m / 197 ft

Typical Range*

60 m / 197 ft

Range at unfavourable

50 m / 164 ft

condition ****

 

Smallest unit displayed

0.1 mm / 1/32 in

Ø laser point

6 / 30 / 40 mm

at distances

(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:

-25 to 70 °C

- Storage

- Operation

-13 to 158 °F

-10 to 50 °C

 

14 to 122 °F

*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

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

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:

No.

Cause

Correction

204

Calculation error

Perform measurement

 

 

again.

252

Temperature too

Let device cool down.

 

high

 

253

Temperature too

Warm device up.

 

low

 

255

Received signal too

Change target surface

 

weak, measuring

(e.g. white paper).

 

time too long

 

256

Received signal too

Change target surface

 

high

(e.g. white paper).

257

Too much back-

Shadow target area.

 

ground light

 

258

Measurement

Correct range.

 

outside of meas-

 

 

uring range

 

260Laser beam inter- Repeat measurement. rupted

Care

Clean the device with a damp, soft cloth.

Never immerse the device in water.

Never use aggressive cleaning agents or solvents.

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Milwaukee 2281-20

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Milwaukee 2281-20 manual EN Technical Data, Message Codes, Care