ZES ZIMMER LMG450, Руководство пользователя

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Instructions and Warnings LMG450
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repair work must then be carried out by a suitably qualified person who is familiar with any
dangers involved.
It must be considered unsafe to operate the instrument:
•
if there is visual evidence of physical damage
•
if the instrument fails to operate correctly
•
after long-term storage under unfavourable circumstances
•
if there are condensation forms due to excessive temperature changes
•
following rough transport conditions
If the instrument was opened, a high voltage test according to the technical data and a test of
the protective conductor are necessary following the closing of the instrument.
Storage temperature range: -20°C to +55°C
Climatic class: KYG according to DIN 40040
0°C...40°C, humidity max. 85%, annual average 65%, no dewing
The instrument conforms to protection class I. A suitable mains cable is supplied with the
instrument for connection to an earthed mains supply point. When in use the unit must be
securely earthed; continuity of the mains earth connection should be checked. Make sure that
attention is paid to the following points:
Warning! The green/yellow safety jack on the back of the instrument must be used
for additional earthing in case an earth current in excess of 10A might
result accidentally in the system under test. Since the earthing conductor
of the mains supply is unable to carry such currents, the instrument have
to be connected to a suitable earth point via an adequately rated cable. If
reliable earthing cannot be realised, the connections between the system
under test and the instrument must be fused appropriately. The earth
terminal on the instrument must not be used as the only earth connection
for the instrument nor must the test circuit be earthed from this terminal.
Attention! Before connecting the mains cable to an electricity supply, confirm that
the mains supply voltage corresponds to the voltage printed on the
model’s identification plate.
Warning! Remove all power supplies to a test circuit before connecting a probe for
measurement purposes.