Stabila LD 420 User guide

Laser Distancer LD 420

en

Operating instructions

Stabila LD420

1

EN

Table of Contents
Instrument Set-up

- - - - - - - - - - - - - - - - - - - - - - -2

Introduction- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2
Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Display- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3
Insert batteries - - - - - - - - - - - - - - - - - - - - - - - - - - - -3

Operations- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -4

Switching ON/OFF - - - - - - - - - - - - - - - - - - - - - - - - -4
Clear - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -4
Message Codes - - - - - - - - - - - - - - - - - - - - - - - - - - -4
Adjusting measuring reference / tripod - - - - - - - - - - -4
Multifunctional endpiece- - - - - - - - - - - - - - - - - - - - - -5

Measuring Functions - - - - - - - - - - - - - - - - - - -6

Measuring single distance - - - - - - - - - - - - - - - - - - - -6
Permament / Minimum-Maximum measuring - - - - - - -6
Add / Subtract / Multiply / Divide - - - - - - - - - - - - - - - -6
Area- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -7
Volume- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -8

Special Functions- - - - - - - - - - - - - - - - - - - - - - -9

Pythagoras 1 - - - - - - - - - - - - - - - - - - - - - - - - - - - -10
Pythagoras 2 (3-point) - - - - - - - - - - - - - - - - - - - - - -10
Pythagoras 3 (partial height)- - - - - - - - - - - - - - - - - -11
Stake out - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -12
Trapezoid- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -13
Memory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -14
Set or change value- - - - - - - - - - - - - - - - - - - - - - - -14

Settings- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -15
Technical Data - - - - - - - - - - - - - - - - - - - - - - - - -16
Message Codes - - - - - - - - - - - - - - - - - - - - - - - -17

Care- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -17
Warranty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -17
Safety Instructions - - - - - - - - - - - - - - - - - - - - -17

Areas of responsibility - - - - - - - - - - - - - - - - - - - - - -17
Permitted use - - - - - - - - - - - - - - - - - - - - - - - - - - - -18
Prohibited use - - - - - - - - - - - - - - - - - - - - - - - - - - - -18
Hazards in use - - - - - - - - - - - - - - - - - - - - - - - - - - -18
Limits of use - - - - - - - - - - - - - - - - - - - - - - - - - - - - -18
Disposal - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -18
Electromagnetic Compatibility (EMC)- - - - - - - - - - - -18
FCC statement (applicable in U.S.) - - - - - - - - - - - - -19
Laser classification- - - - - - - - - - - - - - - - - - - - - - - - -19
Labelling- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -19

Stabila LD420

2

Instrument Set-up

Introduction

The safety instructions and the user manual should be
read through carefully before the product is used for the
first time.

The person responsible for the product must ensure that
all users understand these directions and adhere to them.

The symbols used have the following meanings:

WARNING

Indicates a potentially hazardous situation or an unintended use
which, if not avoided, will result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation or an unintended use
which, if not avoided, may result in minor injury and/or appreci­able material, financial and environmental damage.

Important paragraphs which must be adhered to in practice
as they enable the product to be used in a technically
correct and efficient manner.

i

Overview

Display

On/

Measure

Area /

Volume

Clear / Off

Memory

Menu /
Calculate /
Additional
results

Divide / Right

Reference

Add / Up

Subtract /

Down /

Set value

Multiply /

Left

Set value

Stabila LD420

Instrument Set-up

3

EN

Display

Units

Stake out

Ceiling area

Circumfer-

ence

Measuring

reference

2nd result

Area / Volume

Info

Wall area

Addition /

Subtraction

Timer

Memory

Pythagoras

Battery
Min/Max

Measuring

Illumination

Main line

Tilt angle

Battery

Insert batteries

i

To ensure a reli­able use, do not
use zinc-carbon
batteries.
Change batter­ies when battery
symbol is flash­ing.

Stabila LD420

4

Operations

Switching ON/OFF Clear Message Codes

i

Press ON button 2
sec to start contin­uous laser mode.
If no key is
pressed for 180
sec, the device
switches off auto­matically.

2 sec

Device is
turned OFF.

1x

Undo last action.

2x

Leave actual
function, go to de­fault operation
mode.

If the info icon appears with a
number, observe the instructions
in section "Message Codes".
Example:

Adjusting measuring reference / tripod

Next distance is measured from
the front of the device.

1

i

Press button 2
sec and refer­ence from
front is set
permanently.

Distance is meas­ured from the tripod
thread permanently.

2

Distance is measured from the rear
of the device (standard setting).

3

Stabila LD420

Operations

5

EN

Multifunctional endpiece

i

The orientation of
the endpiece is
automatically de­tected and the
zero point is ac­cordingly adjust­ed.

Stabila LD420

6

Measuring Functions

Measuring single distance

1

Aim active laser at target.

2

8.532 m

3

Tipp: To avoid jitter
problems, set Timer
ON and time to 1 sec.

i

Target surfaces: Measuring
errors can occur when meas­uring to colourless liquids,
glass, styrofoam or semi-per­meable surfaces or when
aiming at high gloss surfac­es. Against dark surfaces the
measuring time increases.

Permament / Minimum-Maximum measuring

1

2 sec

22.328 m

23.804 m

20.675 m
–––––

Used to measure room diagonals (maximum val­ues) or horizontal distance (minimum values)

Max and min values are displayed in 1st
and 2nd row. The last value measured is
displayed in the main line. If no measure­ment is possible, 3rd row shows a line.

min. max.

2

Stops permanent / minimum­maximum measuring. With
pressing the MENU key, the max
or min value can be moved in the
main line for calculation after­wards.

3

Add / Subtract / Multiply / Divide

7.332 m

1

The next meas­urement is added
to the previous
one.

2

The next meas­urement is sub­tracted from the
previous one.

The next meas­urement is multi­plied with
previous one.

2

The next
measurement
is divided with
previous one.

i

The measured value is shown in the
main line. After pressing the equal
button, the result is shown in the
main line. This process can be re­peated as required. Multiplying a
length more than 3 times is not pos­sible. The same process can be
used for adding or subtracting are­as or volumes.
Values from memory also can be
used for calculations.