LEM SATURN 100 plus Instrucciones De Uso página 11

Measuring
Connecting the Specimen
In plant featuring three-pin outlets, the supplied measuring lead with three-pin plug
should always be used for measuring. This precludes mis-wiring and permits
optimum use of all measuring facilities and switch positions. The instrument will
automatically effect any required pole-changing of the connections in case the L
and N-wires are exchanged.
Note: To avoid spurious displays, use only the supplied three-pin-
plug measuring cable.
Measuring cables from any previous versions are not compatible and
must therefore not be used!
For resistance and continuity and rotary-field-direction measurement as well as
measurements in distribution boxes or with fixed connections, the supplied 3-wire
measuring lead should be used.
If measurements with probe are to be performed, connect the included measuring
lead to the jack „ Probe " with the safety plug of 4 mm diameter. The other side of
the lead should be connected with the included earth-probe to earth/ground.
Correct connection, both on the instrument and at earth/ground, is automatically
checked and displayed. In RCD-circuit-breaker testing mode, the measuring
method is simultaneously switched from lowering of voltage to current-voltage
measurement. In function R the connection to the probe jack activates the
LOOP
measurement of earth electrode voltage.
Prompting and Control of Measuring Sequence
Before each measurement, the instrument automatically checks the current
measuring conditions and prevents measurement while simultaneously displaying
the error if any of the following conditions applies:
– illegal mains voltage
– illegal mains frequency (< 46 Hz, > 65 Hz)
– excessive temperature inside the case (display flashes)
– low battery voltage (display „LO-BAT")
– connection of an external voltage during insulation or resistance measurement
– excessive probe voltage
– mis-connection or incomplete connection
Voltage and frequency measurements can be performed at all times.
Any required corrections of measured values or zero compensations for voltage
fluctuations are performed automatically for all measurements.
If „- E - " is displayed, a defect has been recognised in the instrument.
(see section 3.11 Display hints)
Display of Measured Value and Additional Values
All measured values are displayed with correct decimal point and with indication of
the unit and an abbreviation for the current measured value. In addition, the display
may show various
special characters for plant assessment, prompting and explanation of error
S
messages. With key „Display" it is possible, before triggering the measurement,
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