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6.4 Operation
Consult an expert when in doubt about the operation, safety or connection of the appliance.
If it is no longer possible to operate the product safely, take it out of operation and protect
it from any accidental use. DO NOT attempt to repair the product yourself. Safe operation
can no longer be guaranteed if the product:
– is visibly damaged,
– is no longer working properly,
– has been stored for extended periods in poor ambient conditions or
– has been subjected to any serious transport-related stresses.
6.5 (Rechargeable) batteries
Correct polarity must be observed while inserting the (rechargeable) batteries.
The (rechargeable) batteries should be removed from the device if it is not used for a long
period of time to avoid damage through leaking. Leaking or damaged (rechargeable) bat-
teries might cause acid burns when in contact with skin, therefore use suitable protective
gloves to handle corrupted (rechargeable) batteries.
(Rechargeable) batteries must be kept out of reach of children. Do not leave (rechargeable)
batteries lying around, as there is risk, that children or pets swallow them.
All (rechargeable) batteries should be replaced at the same time. Mixing old and new (re-
chargeable) batteries in the device can lead to (rechargeable) battery leakage and device
damage.
(Rechargeable) batteries must not be dismantled, short-circuited or thrown into fire. Never
recharge nonrechargeable batteries. There is a risk of explosion!
6.6 Laser
When operating the laser equipment, always make sure that the laser beam is directed so
that no one is in the projection area and that unintentionally reflected beams (e.g., from
reflective objects) cannot be directed into areas where people are present.
Laser radiation can be dangerous, if the laser beam or its reflection enters unprotected
eyes. Therefore, before using the laser equipment, familiarise yourself with the statutory
regulations and instructions for operating such a laser device.
Never look into the laser beam and never point it at people or animals. Laser radiation can
seriously damage your eyes.
If laser radiation enters your eyes, close your eyes immediately and move your head away
from the beam.
If your eyes have been irritated by laser radiation, do not continue to carry out tasks with
safety implications, such as working with machines, working from great heights or close to
high voltage. Also, do not operate any vehicles until the irritation has completely subsided.
Do not point the laser beam at mirrors or other reflective surfaces. The uncontrolled, re
-
flected beam may strike people or animals.
Never open the device. Setting or maintenance tasks must only be executed by a trained
specialist familiar with potential hazards. Improperly executed adjustments might result in
dangerous laser radiation.
The product is equipped with a class 2 laser. Laser signs in different languages are in-
cluded in the package. If the sign on the laser is not written in the language of your country,
please affix the appropriate sign onto the laser.
Caution: if operation settings or procedures other than those described in these instructions
are used, it could lead to exposure to dangerous radiation.
7 Product overview
1 Button for measuring
mode “MEAS”
2 Button for measuring
memory “MEM”
3 DC-connector for the
mains supply adapter
4 Illuminated LC-Display
5 Laser outlet
6 Button to choose the
measuring mode “MODE”
7 Laser caution label
8 Battery compartment for
9 V battery block
Operating Instructions
Laser Revolution Counter DT-10L
Item No. 122624
1 Intended use
This measuring equipment is an optical rev counter with a precise measuring laser for use in
private and commercial fields. The measurement is carried out via reflection. Self-adhesive
reflective markers are provided and can be fixed to revolving objects. The rev counter emits a
red laser beam which is reflected by the reflective marker. A photo diode inside the rev counter
records the reflected laser light and analyses it. Due to the precise laser beam even small ob
-
jects with a large clearance of 5 to 50 cm can be measured. The measured values can be read
in RPM (Revolutions Per Minute) in the 5-digit-display or as an event (incremental counter).
The appliance can be operated with a 9 V battery or with an optional mains supply adapter of
9 V/DC output voltage.
If you use the product for purposes other than those described above, the product may be
damaged. Beyond this there is the risk of injuries, e.g. to the eyes.
The product complies with the statutory national and European requirements. For safety and
approval purposes, you must not rebuild and/or modify the product.
Read the operating instructions carefully and store them in a safe place. Make this product
available to third parties only together with the operating instructions.
All company names and product names are trademarks of their respective owners. All rights
reserved.
2 Delivery content
Laser Revolution Counter DT-10L
9V battery block (NEDA 1604/IEC 6F22)
3 self-adhesive reflective markers (20cm)
Operating instructions
3 Latest product information
Download the latest product information at
www.conrad.com/downloads
or scan the QR code
shown. Follow the instructions on the website.
4 Symbols in this document
The symbol warns of hazards that can lead to personal injury. Read the information
carefully.
The arrow symbol indicates special information and advice on operation.
5 Symbols on the product
Laser radiation. Never look into the laser beam and never point it at people or ani-
mals.
6 Safety instructions
Read the operating instructions carefully and especially observe the safety
information. If you do not follow the safety instructions and information on
proper handling in this manual, we assume no liability for any resulting per-
sonal injury or damage to property. Such cases will invalidate the warranty/
guarantee.
6.1 General information
The device is not a toy. Keep it out of the reach of children and pets.
Do not leave packaging material lying around carelessly. This may become dangerous
playing material for children.
If you have questions which remain unanswered by these operating instructions, contact
our technical support service or other technical personnel.
Maintenance, modifications and repairs must only be completed by a technician or an au
-
thorised repair centre.
6.2 Handling
Please handle the product carefully. Jolts, impacts or a fall even from a low height can
damage the product.
6.3 Operating environment
Do not place the product under any mechanical stress.
Protect the appliance from extreme temperatures, strong jolts, flammable gases, steam
and solvents.
Protect the product from high humidity and moisture.
Protect the product from direct sunlight.
Do not switch the product on after it has been taken from a cold to a warm environment.
The condensation that forms might destroy the product. Allow the product to reach room
temperature before you use it.