General Description - Megger S1-5001 Guide De L'utilisateur

The S1-5001 is a compact, battery powered, high voltage d.c.
insulation tester. The instrument is microprocessor controlled
and features a large, clear LCD combining digital and analogue
readings of insulation resistance.The digital full scale of 5 TΩ
can be set to display leakage current instead of resistance. In
this mode of operation, higher resistances can be measured.
The S1-5001 has selectable test voltage options of 500 V,
1000 V, 2500 V and 5000 V. A variable output voltage setting
provides a range of 25 V to 5000 V incremental in 25 V steps.
At switch on, the instrument carries out a calibration self check
which automatically adjusts the measurement system. The
calibration sequence inhibits any testing if the measurement
system fails to meet preset limits.
On starting a test, the HV warning LED on the front of the
instrument flashes, together with the display HV warning
symbols. The integral timer starts automatically and displays
minutes and seconds elapsed since the start of the test. The
timer can be used to set the duration of a test, and will
automatically stop the output voltage when the set time has
expired.
Battery capacity is continuously displayed by a segmented
indicator. The indicator flashes when the battery requires
recharging. Power is obtained from two parallel connected
sealed rechargeable lead acid batteries. If either battery fails (or
an internal protection fuse ruptures) the instrument will continue
to operate on the alternative battery. The battery is recharged by
external 95 - 265V a.c., 50-60 Hz, or 12 V d.c.supply.
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General Description

Charging connections, mains power indicator and instrument
protection fuses are located in a splashproof protected recess in
the front panel.
Specially designed lid hinges enable the lid to be removed and
replaced as required, and will protect the lid from strain or
damage by unclipping itself if unintentionally opened past its full
extent.
Design safety features include:-
• The flashing HV warning LED on the front of the instrument,
and the flashing H.V. symbols on the display remind the user
that hazardous voltage is present when testing.
• External voltage >50 V displayed with flashing H.V. symbols
on the display.
• Load automatically discharged at the end of a test, and
decaying voltage (> 50 V) displayed.
• Interlocked sliding cover to prevent simultaneous access of
charging and test terminals.
• Test terminal sockets lock test leads into the case and
prevent accidental disconnection.