2 Safety instructions EFA-200/-300
2-2
2.3 AC Power Supply Unit
Caution
Malfunction
The accuracy and function of the instrument can be impaired by incorrect
use, damage and unauthorized repairs.
⇒ Only use the instrument under the conditions and for the purposes for
which it was designed.
⇒ Regularly check the instrument for any signs of damage.
⇒ Only allow repairs to be made by trained service engineers.
Unsuitable measuring range
The EFA series of instruments has a limited frequency range that extends
from 5
Hz up to 32 kHz. Fields outside this range will normally be assessed
incorrectly.
⇒ Select a suitable measuring range.
⇒ Only measure within the valid measuring ranges.
Danger
Electric shock
Parts carrying live voltages, which may cause injury can be exposed if the
Power Supply Unit is damaged.
⇒ Never use a damaged Power Supply Unit.
Caution
Damage
Incorrect AC line voltages, condensation, extreme temperatures and poor
ventilation can all result in damage to the Power Supply Unit.
⇒ Before connecting up the Power Supply Unit check that the operating
voltage of the Power Supply Unit matches the local AC line voltage.
⇒ Do not use a Power Supply Unit if condensation has formed on it. If
condensation is unavoidable, such as when the Power Supply Unit is
cold and is brought into a warmer environment, it must be allowed to dry
out completely before it is connected up.
⇒ Only use the Power Supply Unit indoors at temperatures between +5 °C
and +45 °C.
⇒ Ensure adequate ventilation for cooling during operation.
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