TUF HD 50 User manual

Operating Manual
TUF HD 50
Congratulations on your purchase of laser distance meter TUF HD 50 Lite.
Safety instructions can be found in the end of this user manual and should be carefully read before you
use the product for the first time.
Functions/Applications
Laser distance meter TUF HD 50 is intended to measure distance, lengths, heights and calculate area and
volume of measured objects. The product is suitable for use at both indoor and outdoor building areas.
Specifications
Working range
0,05…50 m*
Smallest unit displayed
1 mm
Measuring accuracy
±2 mm**
Laser type
Class II, 635 nm, < 1 mW
Continuous distance measuring (Tracking)
Yes
Area/volume
Yes
Automatic shutdown
2,5 min
Sound
Yes
Battery life
Up to 6000 times
Storage temperature
-20…+60 °С
Working temperature
0…+40 °С
Storage humidity
RH85%
Battery
2 х1.5V AAA LR3 (alkaline)
Dimensions
105 mm х 47 mm х 27 mm
Weight
83 g
* Use a target plate to increase the measurement range during daylight or if the target has poor
reflection properties
** In favorable conditions (good target surface properties, room temperature) up to 10 m. In
unfavorable conditions, such as intense sunshine, poorly reflecting target surface or considerable
temperature variations, accuracy can decrease by ± 0.35 mm/m.
Set
1. Laser distance meter – 1 pc.
2. Carry pouch with a strap – 1 pc.
3. User manual – 1 pc.
4. Batteries LR3 (AAA) – 2 pcs.
Insert/replace batteries

Remove the battery cover. Insert the batteries, observing correct polarity. Put the battery cover back.
Remove the batteries when the product is not used for a long time to avoid corrosion and battery
depletion. Both batteries should be replaced at the same time.
Both batteries must be of the same brand with the same charge level. Replace batteries when symbol
is constantly flashing on the display.
Prepare replaceable batteries when symbol is illuminated on the display. You can produce around
100 measurements after this symbol appeared.
Switch on/off
Switch on: press
The product will switch on and enter measuring mode.
Switch off: press and hold during 3 seconds.
In order to save battery power the product will switch off automatically within 2,5 minutes after the last
operation.
Product description
Functions of buttons
Button №
Short press
Long press
1
Switch on the
product/switch on laser
beam/measurement
Continuous measuring
(tracking)
2
Calculation of
area/volume*
Choose reference point
3
Clear
Switch off
*- Double press

Display
1
2
3
4
5
6
7
8
1. Laser indicator
2. Reference point
3. Area/volume measuring mode
4. Continuous distance measurement mode (Tracking)
5. Battery charge level
6. Area/volume unit
7. Unit
8. Display line
Operation
Reference point setting
It is possible to set the reference point - from the top or bottom end of the product.
The default reference point is the bottom end of the product.
Press and hold during 3 seconds to change the reference point.
Display backlight
When the product is on, backlight switches on automatically when you press any button. The backlight
will shut off automatically without any operation after 15 seconds.
Measurements
1) Single distance measurement
Press to switch on the laser beam. Point the laser beam at the target and press
again for single distance measurement. The result of measurement will be shown on the display. To
delete measuring results press .

2) Continuous distance measurement (Tracking)
Press and hold during 2 seconds. Symbol will be blinking on the display. The product
will take measurements one after the other, showing the last measured value. To exit the mode press
or .
3) Area
Press . Symbol will appear on display. Press to measure the first side
(length). Press again to measure the second side (width). Calculation result (length and
width multiplication) will be shown on the display.
Press to exit area measuring mode.
4) Volume
Press twice. Symbol will appear on display. Press to measure the first
side (length). Press to measure the second side (width). Press again to measure
the third side (height). Calculation result (length, width and height multiplication) will be shown on the
display.
Press to exit volume measuring mode.
Message codes
While operation, the following codes/symbols may appear on the display:
Message
Cause
Solution
Err1
Received signal is too weak
Choose the surface with
stronger reflectance. Use the
reflecting plate.
Err2
Received signal is too strong
Choose the 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
temperature.
Err5
Record damaged
Contact the distributor.

Measuring conditions
Measuring range
The range is limited to 30 m.
At night or dusk and if the target is in shadow the measuring range without target plate may increase.
Use a target plate to increase the measurement range during daylight or if the target has poor reflection
properties.
Target surfaces
Measuring errors can occur when measuring toward colorless liquids (e.g. water) or dust free glass,
styrofoam or similar semi-transparent and high gloss surfaces. Measuring time may increase if
measurements are taken against non-reflective and dark surfaces.
Safety regulations
The user manual should be read carefully before you use the product for the first time. Unintended use
of the product can be dangerous for human’s health and cause serious injury. Keep this user manual. If
the product is given to somebody for temporary use, be sure to enclose user manual to it.
-Do not misuse the product
-Do not remove warning signs and protect them from abrasion, because they contain
information about safe operation of the product.
The device belongs to laser product class 2 in accordance with EN60825-1 with a 630-670 nm
wavelength.
Laser radiation!
Do not stare into beam
Class 2 laser
<1 mW 630-670nm
EN60825-1: 2007-03
-Do not look into the laser beam or its reflection, with unprotected eye or through an optical
instrument. Do not point the laser beam at people or animals without the need. You can dazzle
them.
-To protect your eyes close them or look aside.
-It is prohibited to disassemble or repair the product yourself. Intrust product repair to qualified
personnel and use original spare parts only.
-Do not use the product in explosive environment, close to flammable materials.
-Avoid heating the batteries to avoid the risk of explosion and electrolyte leakage. In case of
liquid contact with skin, wash it immediately with soap and water. In case of contact with eyes,
flush with clean water during 10 minutes and consult the doctor.

Care and maintenance
Attention! The instrument is a precision device and requires careful handling. The following
recommendations will extend the life of the product:
-Do not point the product at the sun
-Protect the product from bumps, falls, excessive vibration; do not let liquids, construction dust
and foreign objects get inside the product.
-Do not expose the product to extreme temperatures.
-If liquids get inside the product first remove the batteries, then contact a service center.
-Do not store or use the product under high humidity conditions for a long time.
-Clean the product with soft wet cloth.
-Keep device optics clean and protect it from mechanical damage.
-Сarry out control measurements occasionally, especially if the product is subject to excessive
mechanical or other impact, before and after taking important measurements.
Warranty
All TUF products go through post-production control and are governed by the following warranty terms.
The buyer's right to claim about defects and general provisions of the current legislation do not expire.
1) TUF agrees to eliminate all defects in the product, discovered during the warranty period, that
represent the defect in material or workmanship in full volume and at its own expense.
2) The warranty period is 24 months and starts from the date of purchase by the end consumer (see the
original supporting document).
3) The warranty does not cover defects resulting from wear and tear or improper use, malfunction of
the product caused by failure to observe the instructions of this user manual, untimely maintenance and
service and insufficient care, the use of non-original accessories and spare parts. Modifications in design
of the product relieves the seller from responsibility for warranty works. The warranty does not cover
cosmetic damage, that doesn’t hinder normal operation of the product.
4) TUF reserves the right to decide on replacement or repair of the device.
5) Other claims not mentioned above, are not covered by the warranty.
6) After holding warranty works by TUF warranty period is not renewed or extended.
7) TUF is not liable for loss of profit or inconvenience associated with a defect of the device, the rental
cost of alternative equipment for the period of repair.