Safety Warnings - PEWA Megger DLRO-10 Guia Del Usuario

These safety warnings must be read and understood before the instrument is used.
n
Whenever possible, circuits should be de-energised before testing.
n
If it is impossible to de-energise the circuit, (e.g. high voltage batteries cannot be switched off while their connections are tested) the user must
be aware of the dangers. The instrument terminals will become live when connected to the circuit. Therefore when used on hazardous voltages
custom Megger DH6, DH6-C test leads must be used.
Testing inductive circuits can be hazardous:
n
After testing an inductive load there will be an amount of energy stored in the inductance. This energy is released in the form of a discharge
current. Disconnecting an inductive load while current is still flowing will cause a high voltage arc, which is a danger to both the user and the
item under test.
Although the DLRO 10 and DLRO 10X are not designed as transfromer ohmmeters the DLRO 10 is fitted with a DISCHARGE lamp, marked 'I',
which indicates that current is flowing in the C1-C2 loop. This lamp will flash at end of a test on an inductive load while a discharge current is
still flowing and will stop flashing when the current has decayed to less than 1mA. DLRO 10X uses a message on the display to achieve this.
For testing large inductive resistances the current carrying leads should be connected securely to the item under test before starting the test.
It is not recommended that duplex handspikes be used to carry out tests on inductive loads. If inadvertently using the DH4 handspikes on an
inductive load, the L1 lamp on the handspikes will flash amber while discharge current flows, thereby duplicating the function of the 'I' lamp on
the instrument. It is important to maintain contact until the L1 light stops flashing amber and turns green indicating the end of the test.
This product is not intrinsically safe. Do not use in an explosive atmosphere.
n
Please note. The neck strap is specifically designed to break if subjected to a strain of approximately 50 kg.
n
CAT II
Measurement category II: Equipment
connected between the electrical outlets and
the user's equipment.
2
G

SAFETY WARNINGS

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.