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ProfiScale LASER METER 50 PS 7550

English 

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Measurement functions

Length measurement

Length measurement is preset when the device is switched on. The display 
indicates the length measurement symbol. Aim at the end of the measured 
distance and press the button “A” again. The reading is indicated below in  
the “12” display.

Surface area measurement

Press the button “C” once in order to select surface area measurement. The 
display indicates the symbol for surface area measurement, the first surface 
length flashes. Aim at the desired target and press the button “A” once to  
take the measurement. The reading is indicated above in the “10” display,  
while the second surface length flashes. Use the laser to aim at the next target 
and press the button “A” to take the measure ment. The reading is indicated  
in the “11” display, while the resulting surface area has been calculated and 
indicated in “12”.

Volume measurement

Press the button “C” twice in order to select volume measurement. The 
display indicates the symbol for volume measurement, the first volume length 
flashes. Aim at the desired target and press the button “A” to take the first 
measurement. The reading is indicated above in the “10”display, while the 
second volume length flashes. Use the laser to aim at the next target and press 
the button “A” to take the measurement. Proceed in a similar way for the third 
length. The reading is indicated in the “11” display, while the resulting volume 
has been calculated and indicated in “12”. Indirect length measurement Using 
this function you can measure directly inaccessible distances (e. g. exterior wall 
heights), as two or three measurable lengths are mutually related based on 
trigonometric functions.

Measurement based on two lengths

Press the button “D” once in order to select indirect length measurement.  
The display indicates the indirect measurement symbol, the first length flashes. 
Aim at the desired target and press the button “A” once to take the first 
measurement. The reading is indicated above in the “10” display, while the 
second length in the display flashes. Use the laser to aim at the next target and 
press the button “A” to take the measurement. The reading is indicated in the 
display, while the re sulting length has been calculated and indicated in “12”.

Measurement based on three lengths

Press the button “D” twice in order to select indirect length measurement based 
on three lengths. The display indicates the indirect measurement symbol, the  
first length flashes. Aim at the desired target and press the button “A” once to 
take the first measurement. The reading is indicated above in the “10” display, 
while the second length in the display flashes. Use the laser to aim at the next 
target and press the button “A” to take the measurement. The reading is 
indicated in the display. Proceed in a similar way for the third length. The reading 
is indicated in the display, while the re sulting length has been calculated and 
indicated in “12”.

Continuous measurement

The continuous measurement function is intended for deriving dimensions 
for instance from construction plans. The minimum and maximum 
values can also be determined in this way. When this function is used, 
the measurement device moves relative to the target, while the reading is 
updated approx. every 0.5 sec. During this, the minimum distance is indicated 
in the “10” display and the maximum distance in the “11” display. The 
currently measured value is always indicated in the “12” display. Press the 
button “5“ for approx. 3 sec until you receive an indication and move the 
measure ment device. The distances are indicated in the display. To deactivate 
the function, press the button “A”. The function switches off automatically 
after 100 measurements.

Computing operations

Addition

This is intended to add two or more lengths. When you have measured  
the first length, press the add symbol “K”. The reading is indicated above  
in the “10” display, while the “+” symbol in the display flashes. Press the 
button “A” again, and the total is indicated in the bottom line. You can  
add more values in this way.

Subtraction

When you have measured the first length, press the subtract symbol “J”.  
The reading is indicated above in the “10” display, while the “–“ symbol in 
the display flashes. Press the button “A” again, and the total is indicated in 
the bottom line. In this way, you can subtract more values from each other.

Memory function

The memory function contains the 10 last readings. For this purpose, press 
the button “G”. The memory values can be scrolled using the Add and 
Subtract buttons (buttons “J” and “K”) and thus shown in the display. 
Individual readings can be deleted from the list using the Delete button “H”.

Lighting and unit selection button

The display lighting can be switched on and off by pressing the lighting or 
unit selection button briefly. When the button is pressed for a longer time,  
the unit of measure of the readings changes (m, ft, in, ft+in).

Causes and removal of errors

The device will help you in case of measurement troubles, as various codes 
are indicated in the display.

Error Codes

Correction

204

Calculation error

Repeat the process

208

Received signal is too weak, 
measurement takes too long
Measured distance > 50m.

Measurement with  
a target plate

209

Received signal is too strong.

Measurement with a target plate

252

Temperature is too high

Cool the device down

253

Temperature is too low

Warm up the device

255

Device failure

Switch the device on and off 
several times. In case the error 
message persists, please contact 
your dealer.

Disposal of the device

Dear customer,

please help us to reduce waste. Should you ever intend to dispose of 
this device, please bear in mind that many components of the device 
contain precious materials, which can be recycled. Please do not dispose 
of this device as common waste, but rather request information from the 
responsible local authority on the collecting points for electric waste.

The dustbin symbol indicates:

 

Discharged batteries or accumulators must not be disposed as 
common waste. Please return the batteries/accumulators to 
their vendor or the local recycling yard. Their return is free of 
charge and it is legally required.

Errors and changes reserved.

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