Megger LT300 Bruksanvisning
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Sida 1/65
M
LT300
High current loop tester
User guide
G SAFETY WARNINGS
■ Safety Warnings and Precautions must be read and
understood before the instrument is used. They must be
observed during use.
■ The earth loop impedance test creates a temporary low
resistance path between live and earth for the duration of the
test. This is particularly hazardous with both an instrument and
an installation fault.
■ Working practices and hazard avoidance must take care of this
risk
■ Continuity of protective conductors and earthed equipotential
bonding of new or modified installations must be verified
before carrying out an earth fault loop impedance tests.
■ Circuit connections and exposed metalwork of an installation
or equipment under test must not be touched in case of the
presence of hazardous touch voltages
■ Do not leave the instrument connected to the mains supply
when not in use.
■ Ensure that hands remain behind guards of probes/clips when
testing.
■ The instrument should not be used if any part of it is damaged.
■ Test leads, probes and crocodile clips must be in good order,
clean and with no broken or cracked insulation.
■ The battery cover must be in place whilst conducting tests.
■ Some national safety authorities recommend fused leads for
voltage measurement on high energy systems. If RCD or Loop
tests are made it may cause the fuse to rupture, and so they
must be used with caution on voltage testing.
CAT II - Measurement category II:
Equipment connected between the electrical outlets and the user’s
equipment.
CAT III - Measurement category III:
Equipment connected between the distribution panel and the
electrical outlets.
CAT IV - Measurement category IV:
Equipment connected between the origin of the low-voltage
mains supply and the distribution panel.
NOTE
THE INSTRUMENT MUST ONLY BE USED BY SUITABLY
TRAINED AND COMPETENT PERSONS.
Users of this equipment and/or their employers are reminded that
Produktspecifikationer
| Varumärke: | Megger |
| Kategori: | mätning |
| Modell: | LT300 |
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