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MANUAL

202.40R – 202.60G – 202.80R [EN]

V1.0 – 06.2022

5

2)

Calculate the hypotenuse by measuring the length of two legs.

Calculate the hypothenuse by measuring the length of two legs. Press the Function – Back button [3] 5x 

till one leg of the triangle is blinking on the screen.

Press the Measure – ON button [2] to measure the length of one leg (a).

Press the Measure – ON button [2] again to measure the length of the other leg (b). 
The device will calculate the length of hypothenuse (x).

3)

Press the Function – Back button [3] six times till one side of the triangle is blinking on 

the screen.

Press the Function – Back button [3] 6x till one side of the triangle is blinking on the screen.
Press the Measure – ON button [2] to measure the length of one side (a).

Press the Measure – ON button [2] again to measure the length of the median line (b).

Press the Measure – ON button [2] a third time to measure the length of another side (c). 

The device will calculate the length of the length of the leg (x).

4)

Press the Function – Back button [3] seven times till the hypotenuse of the triangle is 

blinking on the screen.

Press the Function – Back button [3] 7x till the hypotenuse of the triangle is blinking on the screen.

Press the Measure – ON button [2] to measure the length of one hypothenuse (a).

Press the Measure – ON button [2] to measure the length of another hypothenuse (b).

Press the Measure – ON button [2] to measure the length of one leg (c). 
The device will calculate the length of the leg (x).

The legs must be shorter than the hypothenuse otherwise an “err” will be shown on the screen. In order 

to guarantee the accuracy, please make sure that all measurements are performed from the same starting 
point.

7. Addition/ subtraction

The device can be used for length addition and subtraction. 

Summary of Contents for DISTY 40R

Page 1: ...button 3 Function Back button 4 Beep Unit button 5 Addition Subtraction Next button 6 Reference point Timer button 7 Clear OFF button 8 Memory Save button a Battery indicator b Function indicator c A...

Page 2: ...seconds to turn the device on By starting up the device the laser will light up shortly The device is stand by for measurement Hold the Clear OFF button 7 for approx 3 seconds to turn off the device T...

Page 3: ...again to see appear the measured length You can see the measured results displayed on the major display f 2 Continuous measuring Hold the Measure ON button 2 and a continuous measuring mode will be ac...

Page 4: ...u can see the surface measure in the major display f Press the Measure ON button 2 to measure the bottom edge of another wall Afterwards you can get the sum of these two walls Repeat these steps for m...

Page 5: ...n to measure the length of the median line b Press the Measure ON button 2 a third time to measure the length of another side c The device will calculate the length of the length of the leg x 4 Press...

Page 6: ...ea cumulative function Measure the first area as showing in PIC1 Then press the Addition Subtraction Next button 5 and measure the second area as showing in PIC2 A is showing in the left bottom of the...

Page 7: ...he surface with weaker reflectance Use the reflecting plate Err3 Low battery voltage Change the power supply Err4 The working temperature is out of working range Use the device in the specified temper...

Page 8: ...te surface environment light 2000 LUX 25 Tolerance is usually affected by the distance reflectivity and environment light etc It probably gets tolerance around 2mm 0 2mm m Instrument maintenance The m...

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