User's Manual

Screen Service SDT 200UB - 500UB ARK-1 ATSC General information
July, 2009 v 1.0 Page 1 - 7
1.5.3 ELECTRIC SAFETY PRECAUTIONS
All the parts making up the equipment have got danger identification tags (with a yellow background) to
highlight the parts dangerous for the operator that has access to the system.
Presence of hazardous energy levels
A hazardous energy level is defined as a stored energy level of 20 J or more, or an
available continuous power level of 240 VA or more, at a potential of 2 V or more.
1.5.4 COMPONENTS CONTAINING TOXIC MATERIAL HANDLING PRECAUTION
Beryllium (BERILLIUM OXIDE) is used in the construction of the some of the components in this equipment.
This material, when in the form of fine dust or vapor and inhaled into the lungs, can cause a respiratory
disease. In its solid form, as used here, it can be handled quite safely although it is prudent to avoid handling
conditions which promote dust formation by surface abrasion.
Because of this hazard, you are advise to be very careful in removing and disposing of these components.
Do not put them in the general industrial or domestic waste or dispatch them by post. They should be
separately and securely packed and clearly identified to show the nature of the hazard and then disposed of
in a safe manner by an authorized toxic waste contractor.
Before removing or replacing any RF COMPONENTS, make sure that all precautions comply with SAFETY
recommendations.
This WARNING tag is used for the RF COMPONENTS.
1.5.5 ELECTROSTATIC PRECAUTIONS
Before removing or replacing any PCB assembly within the equipment, make sure that all precautions
comply with ESD protections (ESD = Electro Static Discharge). Make sure that electrostatic discharge
protections are reset after maintenance and/or measurement operations.
This ATTENTION tag is used for the majority of electronic devices that are sensitive to
electrostatic discharges.
If electronic parts have to be touched during installation or repair, please observe the following precautions.
Operators must be equipped with anti-static protection devices such as:
Elastic wrist band. To be fixed on the operator’s wrist.
Flexible cord. To be connected to the elastic wrist band and the special plug on
the shelf highlighted with the ESD warning label.