RADIO PRODUCTS
Observe the usage limitations of radio products at filling stations, in chemical plants, in systems
with explosives or potentially explosive locations.
The product may not be used in airplanes. Exercise particular caution near personal medical
aids, such as pacemakers and hearing aids. Never perform work on the antenna system during
a thunderstorm.
To fulfill human safety, a minimum separation distance of 20 cm or more should be maintained
between the antenna of the product and personnel during operation.
ELECTROSTATIC DISCHARGE (ESD)
Prevent electrostatic discharge damage to internal electronic parts by discharging your body to
a grounding point (e.g. use a wrist strap).
HOT SURFACE
Be aware that the surface of this product may become hot. When it is operated at high
temperatures, the external surface may exceed Touch Temperature Limit according to the
product's relevant electrical safety standard.
CABLE TEMPERATURE RATING FOR FIELD TERMINAL
WIRES
There may be a requirement on the minimum temperature rating of the cable to be connected
to the field wiring terminals, see chapter Interface Specifications.
2.3. Care Recommendations
Follow the care recommendations below to maintain full operation of the product and to fulfill the warranty
obligations:
• Do not drop, knock or shake the product. Rough handling above the specification may cause damage to
internal circuit boards.
• Use a dry or slightly water-damp cloth to clean the product. Do not use harsh chemicals, cleaning solvents or
strong detergents.
• Do not paint the product. Paint can clog the product and prevent proper operation.
If the product is used in a manner not according to specification, the protection provided by the equipment may
be impaired.
If the product is not working properly, contact the place of purchase, the nearest Westermo distributor office or
Westermo technical support.
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Merlin 4400 Series