Ermenrich Gd40 Reel Laser Meter User Manual (+ PDF)

Ermenrich GD40 Reel Laser Meter

Overview

1 Laser emitter
Laser receiver
LCD screen
Bubble level
POWER/MEASURE button
–/UNIT SWITCH button
CLEAR/EXIT/OFF button
Bubble level
+/REFERENCE SWITCH button
FUNCTION/SOUND button
Battery compartment

Getting started

Open the battery compartment cover and insert 2 AAA batteries according to the correct polarity. Close the cover.

Using

Press (5) to turn the device on. The laser beam will switch on automatically and then off after 30 seconds. To switch it off manually, press (7).
Aim the laser beam at the target. Press (5) to take a measurement.
Press (10) for 3 seconds to turn the buzzer on/off.
Press (7) for 3 seconds to turn the device of

Reference point

The default reference point is the bottom end of the device. Press (9) for 3 seconds to change the measurement point from the bottom to the top of the device (Fig. A).

Units of measurement

Press (6) for 3 seconds to change the unit of measurement.

Units of measurement options

	Distance	Area	Volume
1	0.000m	0.000m2	0.000m3
2	0.00ft	0.00ft2	0.00ft3
3	0.0in	0.0in2	0.0in3

Mode selection

Press (10) to change the measurement mode one by one.
The setting order: Single distance measurement mode > Area measurement mode > Volume measurement mode > Calculations with 2 additional measurements (Pythagorean theorem) > Calculations with 3 additional measurements (Pythagorean theorem) > History records.

Display information

Single distance measurement mode
Area measurement mode
Volume measurement mode
Calculations with 2 additional measurements (Pythagorean theorem)
Calculations with 3 additional measurements (Pythagorean theorem)
History records
Battery status

Single distance measurement

In Single distance measurement mode, aim the laser beam at the target and press (5). The value will be displayed on the screen.

Continuous measurement

In Single distance measurement mode, press (5) for 3 seconds. The device will keep taking measurements one after another. MAX, MIN,
and the last measured values (Fig. B) will be displayed on the screen.

Area measurement

Select the Area measurement mode. Aim the laser beam at the target and press (5) to measure 2 sides of the target. The area will be calculated automatically (Fig. C).

Volume measurement

Select the Volume measurement mode. Aim the laser at the target and press (5) to measure the length, width, and height of the three-dimensional target. The volume will be calculated automatically (Fig. D).

Calculations with 2 additional measurements (Pythagorean theorem)

Select the Calculations with 2 additional measurements (Pythagorean theorem) mode. Aim the laser at the target and press (5) to measure the lines А and В (Fig. E). Line C will be calculated automatically

Calculations with 3 additional measurements (Pythagorean theorem)

Select the Calculations with 3 additional measurements (Pythagorean theorem) mode. Aim the laser at the target and press (5) to measure the distance D by making 3 additional measurements. Make measurements of lines А, В and С one by one (Fig. F). Length of line D will appear in the main line on the display.
! Note! The length of line C will not be displayed.

Addition and Subtraction

Aim the laser at the target and press (5). Press (9), then press (5) again to plus another value. The summation will be calculated automatically. The subtraction works accordingly with the minus button (6).
! Note! The addition and subtraction functions are available in Single, Area, and Volume measurement modes.

History records

Press (9)/(6) to view the recorded values. Press (7) to delete the recorded values one by one.

Specifications

	GD40	GD60	GD80	GD100
Measuring range, m	0.05–40	0.05–60	0.05–80	0.05–100
Measuring accuracy		2.0mm
Units of measurement		m, ft, in
Laser class		class II, 620–690nm, < 1mW
Laser beam / device auto-off		30 / 180 seconds
History records		20 groups
Battery life		> 5,000 measurements
Power supply		2 AAA batteries
Operating temperature range		0… +40°C (32… 104°F)
Dimensions		110x46x25mm / 4.3×1.8×0.9in
Weight		72g / 0.15lb

The manufacturer reserves the right to make changes to the product range and specifications without prior notice.

Care and maintenance

Please carefully read the safety instructions and user manual before using this product. Otherwise, it may result in hazardous laser radiation and electric shock. Keep away from children.
This is a class II laser product. Please DO NOT look directly into the beam with unprotected eyes or through an optical device at any time and never direct it toward other people. Do not remove any safety labels. Do not aim the device directly at the sun. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Do not use the product in explosive environment or close to flammable materials. Store the device in a dry cool place. Only use accessories and spare parts for this device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts! If a part of the device or battery is swallowed, seek medical attention immediately.

Battery safety instructions

Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your country’s laws.

Levenhuk International Lifetime Warranty

All Levenhuk telescopes, microscopes, binoculars, and other optical products, except for their accessories, carry a lifetime warranty against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions are met.
For further details, please visit: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.