Promax HD RANGER+ Manual page 5

SAFETY RULES
The safety could not be assured if the instructions for use are not closely
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followed.
Use this equipment connected only to systems with their negative of
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measurement connected to ground potential.
The AL-103 external DC charger is a Class I equipment, for safety reasons plug it
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to a supply line with the corresponding ground terminal.
This equipment can be used in Overvoltage Category I installations and
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Pollution Degree 2 environments.
External DC charger can be used in Overvoltage Category II, installation and
Pollution Degree 1 environments.
When using some of the following accessories use only the specified ones to ensure
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safety.:
Rechargeable battery
External DC charger
Car lighter charger cable
Power cord
Observe all specified ratings both of supply and measurement.
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Remember that voltages higher than 70 V DC or 33 V AC rms are dangerous.
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Use this instrument under the specified environmental conditions.
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When using the power adaptor, the negative of measurement is at ground
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potential.
Do not obstruct the ventilation system of the instrument.
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Use for the signal inputs/outputs, specially when working with high levels,
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appropriate low radiation cables.
Follow the cleaning instructions described in the Maintenance paragraph.
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April 2013