Measuring SAT, TV, CATV and Optical Signals
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16.7
Performing Optical Measurements
16.7.1
Safety Instructions
DANGER
Danger of death or severe injuries/damage to the device!
Incorrect commissioning can lead to serious or fatal accidents, or serious
damage to the device!
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Before commissioning the device, read through all instructions
completely and carefully.
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Perform all operating steps in the prescribed sequence.
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Ensure that the MSK 140 may be only be operated by personnel who
have received the necessary training in handling optical and electrical
devices and have been instructed in the safety rules for handling lasers.
WARNING
Danger of death or serious injuries due to laser beams!
The optical transmitter of the system transmits optical radiated power in the
form of invisible infrared radiation. Under normal operating conditions the
optical radiated power is transmitted by the fibre-optic cables and cannot
escape. Each optical transmitter and optical receiver is assigned a hazard
class in accordance with IEC 60825-2. This hazard class is determined on
the basis of the radiation that can be transmitted under reasonably foreseeable
conditions, for instance if the fibre-optic cables are disconnected or broken.
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Ensure that the signal meter may be operated only by staff who have received
the necessary safety training for working with lasers.
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As far as possible, optical transmission equipment should always be
switched off, set to the lowest possible power setting or disconnected
before any sort of work is performed on exposed fibre-optic cables,
connectors or the like.
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The optical energy in fibre-optic cables should be checked using a cali-
brated optical power meter.
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If fibre-optic cables or connectors must be visually inspected, it must
be ensured that they are not carrying any optical energy. This should be
checked using calibrated optical power meters.
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Never look directly into the beam and never use approved collimators to inspect
the ends of optical fibres or connection faces.
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Where required for the hazard class, always wear approved eye protec-
tion.
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Never point the ends of optical fibres at another person.
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If eye protection is necessary for work to be performed, use only
approved and approved protective equipment for the corresponding
wavelengths.