31929 - Rangefinder Berger & Schröter - Free user manual and instructions

Product type	Laser rangefinder
Brand	Berger & Schröter
Model	31929 (PRO X7)
Dimensions (L x W x H)	102 x 34 x 71 mm
Weight	149 g
Power supply	Rechargeable lithium-polymer battery via wireless charging station (USB)
Battery life	Rechargeable; auto-off after 20 s of inactivity
Magnification	6x
Lens diameter	21 mm
Field of view	7.2°
Eye relief	16 mm
Measuring range	5 to 600 m
Accuracy	±0.5 m (<200 m); ±1 m (>200 m)
Units	Meters / yards (switchable)
Water resistance rating	IPX4
Measuring modes	Single distance, scan, flag lock, golf distance correction, fog, horizontal distance, vertical altimeter, speed
Care and cleaning	Soft cloth; store in the provided carrying case
Safety instructions	Do not point at eyes; do not look into the beam; do not open the device; avoid temperatures >50°C or <-10°C; do not immerse
Warranty	Limited warranty; excludes damage due to misuse (drop, opening, etc.)
General information	High-precision optical device; recommended for outdoor use; do not use in rainy weather, snow, or heavy fog

Frequently Asked Questions - 31929 Berger & Schröter

How to turn on the rangefinder?

Press and hold the On/Off button for about 1 second. The display turns on in standard mode (horizontal distance).

How to change the unit of measurement (meters/yards)?

Press and hold the M button for 3 seconds to switch between meters (M) and yards (Y).

How to recharge the battery?

Connect the USB cable to the wireless charging station and to a power source. Place the rangefinder on the station; the indicator lights up and flashes once charging is complete.

What different measuring modes are available?

The modes are: single distance, continuous scan, flag lock, golf distance correction, fog, horizontal distance, vertical altimeter, and speed measurement. They are selected by pressing the M button.

How to use flag lock mode?

In scan mode, press and hold the button to activate lock. The viewfinder flashes then locks onto the flag, isolating its distance from background elements.

What to do if no value is displayed?

Check that the battery is charged, no object is blocking the lens, and you are aiming correctly at a suitable target (size >1 m², perpendicular surface).

What is the maximum and minimum range?

The range is from 5 m (minimum) to 600 m (maximum) depending on target reflectivity.

How to clean and maintain the device?

Use a soft cloth to clean the lenses and housing. Always store the device in the provided carrying case for protection.

Is the rangefinder waterproof?

Yes, it is rated IPX4, meaning it is splash-resistant but cannot be immersed.

What safety precautions should be followed?

Never point the laser at people or animals. Do not look directly into the beam. Do not open the device. Avoid extreme temperatures (>50°C or <-10°C) and immersion in water.

USER MANUAL 31929 Berger & Schröter

Line drawing of a handheld device with three circular ports and a curved handle (no text or symbols)

CE

- - - M A A CFE

4. Drahtloses Laden

Line drawing of a medical or laboratory device with a curved body and connector (no text or symbols)

Line drawing of a handheld device with a circular lens and handle (no text or symbols)

5. Modi ändern

- - - M - - - - A A I

Prinzip:

laser d

$$ d = c / t $$

186 M Scan

- - - M / - Scan A A

186 M Scan

- - - M :: Fog

368 M :: Fog

Nebel-Modus

167 M VH Top Scan

Speed KM/H

Prinzip:

$$ v = (d 2 - d 1) / t $$

Methode:

ode: laser laser // v ← v →

laser laser ⊥ v v

Speed 68.5 KM/H

KM/H

Speed 88.5 M/H

M/H

Ziele messen:

CE Wireless charging of lithium polymer batteries in the charging station

Warning! Please read these instructions completely before using the optical instrument. These instructions for use must be kept and transmitted when the laser device is passed on.

• Do not point the laser beam at people (also class 1 lasers should not be aimed at people, as glare can cause accidents).
• Do not look into the direct or reflected beam.
• When using class 1M and 2M laser devices, optical instruments should not be used to observe the radiation source. This may result in exceeding the exposure limit values.

1. Power On

Hold power button for about 1 second.

The display screen is default range mode.

For thereafter usage, the display screen is last time usage screen.

M

2. Changing Units of Measurement

Hold Button for 3 seconds to toggle meters (M) or yards (Y).

When in mode of “Ranging”, “Scan”, “Pin Lock”, “Golf distance correction”, “Fog”, “Horizontal distance measure” “Vertical height”

and "Speed", long press key to change unit between Metric and Yard.

In Speed Mode, Unit has to be changed independent.

- - - - y x z A A I

3. Low power warning

When battery power is too low, the low battery icon will appear all the time to remind user to change battery.

- - - M A A CFPB

4. Wireless Charging

1. Connect USB cable to the wireless charging base and the power source (USB power adapter/Power Bank/PC/Vehicle etc. USB port connector all ok ), then power indicator turns on.

Line drawing of a medical or laboratory device with a curved body and connector (no text or symbols)

1. Put the rangefinder in the charging base, the indicator light stay on which means it's charging. When it's full charged, the indicator light will flash

Line drawing of a handheld device with a circular lens and handle (no text or symbols)

5. Changing Modes

Hold Button to choose between “Ranging”, “Scan”, “Pin Lock”, “Golf distance correction”, “Fog”, “Horizontal distance measure”, “Vertical height” and “Speed” Mode circularly.

5-1 Ranging mode

- - - M - - - - A A I

Principle:

laser d

$$ d = c / t $$

Press key to start ranging.

598"

5-2 Scan Mode

Principle:

graph TD
    O["Object"] --> d_a["d(a)"]
    O --> d_b["d(b)"]
    O --> d_c["d(c)"]
    O --> d_n_minus_1["d(n-1)"]
    O --> d_n["n"]
    O --> d_n_plus_1["d(n+1)"]
    d_a -.-> A["A"]
    d_b -.-> B["B"]
    d_c -.-> C["C"]
    d_n_minus_1 -.-> N["N"]
    d_n_plus_1 -.-> N_plus_1["N+1"]

In scan mode, the laser will emit a continuous, each distance to be measured will be displayed one by one.

When Power on, in the ranging mode, press and hold key to set the Scan mode.

186 M Scan

Automatically exit after 20 seconds continuous ranging.

5-3 Pin Lock Mode

Principle:

O d1 D A B C N N+1 N+2

In the Pin Lock Scan mode, the point D may be isolated from a number of points in the background out and keep only the distance d1 to the point.

So as to achieve the automatic locking flagpole distance. The other goals were shielded behind the flagpole.

Pin Lock

- - - M / - Scan A A

When the flagpole Scan mode screen appears, press and hold key to start the pin lock scan function, the flag symbol in the screen box around the icon flashes.

The ranging machine aiming point in the measured scan back and forth on both sides of the flagpole, the flagpole of the measured data to the data will be retained, and the screen banner around the box is no longer flashing, which means that the flagpole data is locked.

186 M Scan

5-4 Golf Distance Correction (Golf Slope Compensated Distance) Principle:

The measured distance values AB, the slope value is substituted into the equation in golf ball flight. Calculate the recommended distance.

The slope is positive, long distance shots.

2 1 B C A D E

1. Uncorrected parabola batting
2. The actual distance the ball parabola

Point B is the pole position

The slope is negative, the distance to be close to hitting.

2 1 A E D B C

Press and release button to set Golf Distance Correction mode.

△ M Scan

After the measured distance values and flagpole slope value, the trajectory can be calculated. Distance and slope value turns the display.

∠ 56" Scan

Angle compensated distance

∠ 17° Scan

Angle

5-5 Fog Mode

Principle:

O A d1

Press and release button to set Fog Mode.

- - - M :: Fog

Short Press to start Ranging. Fog Mode will solve the interference caused by foggy.

368 M :: Fog

Fog Mode

Note:

1. In Fog Mode, effective distance should be over 25m
2. The device can only be used outside

5-6 Horizontal distance measure

Principle:

-6 Horizontal distance measure Principle: A a -a HD C D B

Press and release Button to set the Horizontal distance Mode.

HD M

Short press power

HD 125 M /———

Horizontal distance

HD 09° /———

Angle

key to measure distance and angle, after calculation, horizontal distance and angle will display alternatively.

5-7 Vertical height measure mode

Principle:

3-7 vertical height measure mode Principle: Top a VH A Bottom Measuring distance between two points (Bottom and Top) in the vertical direction, and the angle (a) between the two points, to calculate the vertical height between the two VH.

Measuring distance between two points (Bottom and Top) in the vertical direction, and the angle (a) between the two points, to calculate the vertical height between the two VH.

Bottom

The aiming point is aligned at the bottom of the measured object, hold down the koy.

VH M

Aim the bottom of the target, press

VH 163 N Bottom Scan

Bottom side

167 N VH Top Scan

Top distance

and hold power key "Bottom" & "Scan" will show up in the screen, the rangefinder will start to measure to the bottom. When the distance to the bottom is measured, the screen will show "Up" & "Scan", then start to look for the top. Then distance to top position will be continuously displayed in the screen.

△ VH 12" A A

Vertical Height

5-8 Speed Mode

Press and release button to set the Speed Mode

Speed KM/H

Principle:

nciple: d1 v d2

$$ v = (d 2 - d 1) / t $$

laser laser // v ← v →

laser laser ⊥ v v

Hold M switch the Unit KM/H and M/H

Press to start measuring Speed

Aim moving targets at two times, then the speed of moving object will display.

Press key to start the measurement speed.

Speed 68.5 KM/H

KM/H

Speed 88.5 M/H

M/H

Measure Targets:

1. High reflection targets (Highway guidepost)
2. Medium reflection target (Building wall)
3. General reflection target (Land/Wood)
4. Low reflection target (Golf flagpole)

Different targets influence the performance of measurement. Higher reflection will measure longer distance, vice versa.

The ranging distance based on below conditions:

1. Medium reflection target: like wall of a building.
2. Surface of the reflection target is vertical with the laser emission direction.
3. Measure in a clear weather is the best, but not direct to the sunlight.
4. Low reflection target's area not less than 1 m x 1 m.

Note: Measure result is different according to different reflection targets, we will not guarantee the usage under below conditions:

1. Measure to the sky or non-target.
2. Heavily rainy/snow/fog/haze etc. Weather condition.
3. Too small of the reflection target (like wire cable), or it's difficult to measure, like water and clear glass.

If no measured value is displayed:

1. Make sure that the battery is charged and press power key.
2. Make sure no object block vision of objective lens, like transparent window glass or hand etcs.
3. When measure, please hold product steadily and aim target correct,
   then press power

Features:

Objective lens diameter: 21 mm

Magnification power: 6x

Field of view: 7.2°

Eye relief: 16 mm

Resolution: +/- 0.5 m when distance <200 m;

+/-1 m when distance >200 m;

Max range: 600 m

Min range: 5 m

Unit: Meter/Yard

Akku: Lithium Polymer

Waterproof: IPX4

Size: Length 102 mm x Width 34 mm x height: 71 mm

Weight: 149 g

Attention:

This product is high precision optic products, things listed below but not limited to will cause unrecoverable problems to products, which will not be covered by warranty.

For example:

1. Expose products outside with surrounding temperature above 50 Celsius degree or below -10 Celsius degree.
2. Soak products in water.
3. Drop rangefinder or do other physical damage to products.
4. Dismantle products.

Transport / Storage / Disposal

When not in use, always store it in the transport bag to protect it from damage.

Clean only with a soft, lint-free cloth.

Dispose of the device and according to the legal regulations.

Line drawing of a handheld device with three circular buttons and a curved handle (no text or symbols)

CE

- - - - γ x = A A A I

- - - M A A CFE

4. Chargement sans fil

Line drawing of a medical or laboratory device with a handle and connector (no text or symbols)

Line drawing of a handheld device with a circular lens and handle (no text or symbols)

- - - M z A I

Principe:

laser d

$$ d = c / t $$

186 M Scan

186 M Scan

- - - M :: Fog

368 M :: Fog

Mode brouillard

Speed KM/H

Principe:

ncipe: d1 v d2

$$ v = (d 2 - d 1) / t $$

Méthode:

ode: laser laser // v ← v →

laser laser ⊥ v v

Speed 68.5 KM/H

KM/H

Speed 88.5 M/H

M/H

Line drawing of a handheld device with three circular ports and a curved handle (no text or symbols)

CE

Draadloos opladen van de lithium- polymeerbatterij op het laadstation

- - - - γ x = z A A A I

- - - M A A CFE

Line drawing of a medical or laboratory device with a curved body and connector (no text or symbols)

Line drawing of a handheld device with a circular lens and handle (no text or symbols)

5. Modi wijzigen

Houd Mgedrukt om te kiezen tussen Ranging, Scan, Pin Lock, Golf Distance Correction, Fog, Horizontal Distance Measurement, Vertical Altitude en Speed Mode.

5-1 Range-modus

- - - M - I

Principe:

laser d

$$ d = c / t $$

186 M Scan

Automatische stop na 20 seconden ononderbroken afstandsmeting.

5-3 Pin lock-modus

Principe

O d1 D A B C N N+1 N+2

186 M Scan

- - - M :: Fog

368 M :: Fog

Mistmodus

167 M VH Top Scan

Speed KM/H

Principe

ncipe d1 v d2

$$ v = (d 2 - d 1) / t $$

Werkwijze:

wijze: laser laser // v ← v →

laser laser ⊥ v v

Speed 68.5 KM/H

KM/H

Speed 88.5 M/H

M/H

Doelen meten: