LRF-7 - Rangefinder Praktica - Free user manual and instructions

Product Type	Laser Rangefinder
Brand	Praktica
Model	LRF-7
Measurement Range	5 – 800 m
Measurement Accuracy	± 1 m
Magnification	6x
Display	LCD with backlight
Laser Class	Class 1 (eye-safe)
Measurement Modes	Distance, Speed, Angle
Power Supply	1x CR2 lithium battery
Battery Life	Approx. 3000 measurements
Dimensions (W x H x D)	120 x 80 x 40 mm
Weight (with battery)	200 g
Material	Rubber armored plastic
Waterproof Rating	IPX4 (splash resistant)
Tripod Mount	Yes (1/4 inch thread)
Warranty	2 years
Included Accessories	Carrying case, strap, battery, cleaning cloth

Frequently Asked Questions - LRF-7 Praktica

How do I measure distance with the Praktica LRF-7?

Press the power button to turn on the device. Aim the crosshair at the target and press the measurement button. The distance will appear on the LCD display within seconds.

How do I change the battery?

Slide the battery cover open on the bottom of the rangefinder. Remove the old CR2 battery and insert a new one with the positive side facing outward. Close the cover securely.

What is the accuracy of the LRF-7?

The accuracy is ±1 meter for distances up to 800 meters under normal conditions.

Can the LRF-7 measure speed?

Yes, it has a speed measurement mode. Select the speed mode using the mode button, then aim at a moving target and press the measurement button. The speed will be displayed in km/h or mph.

Is the Praktica LRF-7 waterproof?

It is splash resistant with an IPX4 rating, meaning it can withstand light rain or splashes but should not be submerged.

How do I clean the lens?

Use the included soft cleaning cloth to gently wipe the lens. For stubborn dirt, moisten the cloth slightly with lens cleaning solution. Avoid using paper towels or abrasive materials.

What does the display show?

The LCD display shows the measured distance, speed, or angle depending on the mode. It also indicates battery level and measurement units.

What is the maximum measurement range?

The maximum range is 800 meters for reflective targets. For non-reflective targets like trees or buildings, the range may be reduced to around 500 meters.

Can I mount the LRF-7 on a tripod?

Yes, the bottom has a standard 1/4 inch tripod thread. Attach it to a tripod for stable measurements.

What should I do if the device does not turn on?

Check the battery by replacing it with a fresh CR2. Ensure the battery is inserted correctly (+/-). If the problem persists, contact Praktica customer support.

USER MANUAL LRF-7 Praktica

The PRAKTICA LRF-7 features target seeking technology, allowing you to quickly and easily zone in on your target. Weighing less than 200g and designed to fit in the palm of your hand, the LRF-7 is the perfect range finding accessory. It features an adjustable eyepiece, 7x magnification and an impressive 7.1° angular field of view.

The LRF-7's advanced processor results in a quick and accurate reading every time. Distance is calculated by measuring the time it takes for each pulse to travel from the rangefinder, to the target and back again.

Getting Started

1. Laser Output
2. Laser Receiving Lens
3. Mode Switching Key
4. Power Button
5. Observation Eyepiece
6. Dipoter Adjustment
7. Battery Cover

Inserting the Battery

In order to use your new rangefinder, you will need to insert a CR2-3V battery. Slide the battery cover down to reveal the battery compartment. Insert the battery so the negative end is in contact with the spring, as shown below. The attached ribbon should be under the battery. Once the battery has been inserted, put the cover back on.

To remove the battery, pull the ribbon towards you. If you intend on storing your rangefinder for a long time, please ensure the battery is removed.

Measured Angle

Operating Instructions

1. Start

The PRAKTICA LRF-7 Laser Rangefinder has two buttons; a POWER ( ) button and a MODE button. Press the POWER button for roughly one second and your rangefinder will turn on.

2. Diopter Adjustment

To focus on a subject, turn the diopter ring left or right while looking through your rangefinder.

3. Changing the measuring unit

To change the measuring unit from M(metres) to Yd(yards), hold down the MODE button for two seconds.

4. Target Seeking

Press the POWER button to turn the rangefinder on. Next align the aiming circle onto your target and press and hold the POWER button. Once target seeking has been activated, an aiming circle will appear over your chosen object and the distance will appear in metres or yards. This distance will remain on your display until you press the POWER button again while focusing on another object.

Target Seeking not activated

Target Seeking activated

5. Compensated distance explained

The compensated distance technology built into this rangefinder automatically adjusts the distance displayed in the viewfinder based on the target being level or at an incline/decline. The measured angle (4) in the viewfinder indicates the angle of the target in relation to your position. Measurement is accurate within -1/+1° of an angle.

6. Scanning

Hold the POWER button down and scan across the target area. The data on the LCD screen will change with the target.

7. Automatic Power Off

Your rangefinder will automatically turn off after 20 seconds of inactivity.

Important Notes

• The PRAKTICA Laser Rangefinder does not emit a visible beam. It uses a non-destructive infrared pulse laser then reflects from the visible target back into the optical receiver.
• Although this unit has a very low transmission rate and is harmless to the human eye, we recommend avoiding direct eye contact with the laser output.
• The maximum measuring range of the device depends on the target reflectivity, colour, surface finish, size and actual shape.

PRAKTICA

Laser Rangefinder Specification

Magnification 7x

Objective Lens 25mm

Field of View @1000m 126m

Field of View @1000yds 378ft

Angular Field of View 7.1°

Min-Max. Distance 6-600m

Lens Coatings Fully Multi-Coated

Measuring Time 0.5 - 1 Second

Distance Measure Accuracy 1/-1 M/Y

Battery CR2-3V

Scan Mode Yes

Target Seeking Function Yes

Dimensions 103x39x72mm

Weight 184g