Stonex R20 – User Manual 7
2.2. Glare damage
Looking directly at hard light can cause eye discomfort, temporary blindness and residual images, and prolonged
exposure to direct bright light can cause permanent damage to the eyes.
• Viewing the sun through the instrument's telescope is prohibited at any time.
• Avoid using instruments to aim at objects that are strongly reflecting sunlight, such as mirrors, glass,
water, car surfaces, etc.
• Avoid observing strong lights and other light sources.
2.3. Fire risk
The design and manufacture of the instrument and its accessories follow the relevant standards and directives to
avoid as much as possible the danger of high temperature, fire and other dangerous conditions in normal
operation. However, using the instrument under special conditions, using it irregularly and disassembling it may
lead to localized high temperature, fire or even explosion.
• The use of this instrument in coal mines is prohibited.
• When there are dangerous, flammable or explosive gases or liquids in the vicinity of the workplace, it is
prohibited to operate the instruments.
• Do not use the instrument in a hot environment or near flames.
• Batteries must not be placed in fire or high temperature environments.
• The battery should not be covered by any object during charging to avoid the risk of overheating and
fire.
• The battery must not be disassembled.
• Avoid keys, metal objects connected to the electrodes of the battery, or the electrodes of the charger.
• Avoid the use of unqualified, faulty or damaged sockets when charging, and prohibit any operation that
uses wires directly connected to the plug.
• Avoid contact of the instrument, batteries, chargers, adapters, power cables, etc. with any liquid. Avoid
using, storing, or charging the instrument in a raining, dripping, or wet environment.
• Batteries shall be transported in proper packaging.
• Do not use any batteries, chargers, adapters, power cables, etc. that are not supplied by the Company.
• If any abnormality or damage is found in batteries, chargers, adapters, cables, etc., stop using them
immediately and dispose of them properly.
• Keep batteries, chargers, etc. clean to avoid excessive dust accumulation.
• Do not make any modifications to the instrument, batteries, chargers, adapters, cables, etc.
2.4. Electric shock risk
This instrument is powered by rechargeable batteries. The charger needs to be connected to city power during the
charging process, and any improper handling of electricity may result in electric shock.
• Prohibit operate near high-voltage power transmission and large power facilities.
• Whenever possible, avoid using centering rod near electrified railroads, power lines, etc.
• Outdoor work during thunderstorms is prohibited.
• Do not operate instruments, batteries, chargers, etc. with wet hands.
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