RMS Value with Distorted Waveshape
The utilized measuring method allows for waveshape
independent TRMS measurement of periodic quantities (AC) and
pulsating quantities (AC and DC) for voltage and current at up to 10
kHz.
Filter for V AC Measurements
A 200 Hz low-pass filter can be activated if
required, e.g. for measurements at cables with parasitic external
signals. The input signal is checked by a voltage comparator for
dangerous voltages as
long as the low-pass filter is activated.
Display of Negative Values at the Analog Scale
Negative values are also displayed at the analog
scale for zero frequency quantities (V DC), allowing for observation
of measured quantity fluctuation around the zero-point.
Loop Impedance Measurement
Loop impedance can be measured within a range of 100
mΩ and 3.1 kΩ with a
constant current of IC = 2 mA. The threshold value for acoustic
signaling is adjustable.
Insulation Resistance Measurement with
Interference Voltage Display
Whether insulation testing will be conducted between
E-a, b-E or a-b can be selected by turning the selector switch to
the appropriate position.
If the instrument detects interference voltage of greater than 15 V
AC or 25 V DC during insulation testing, an error message is briefly
displayed at the LCD panel. The instrument is then
automatically switched to voltage measurement, and the currently
measured voltage value is displayed.
Error Localization (with capacitance measurement
and cable length comparison)
Interruption of a single core or contact with an
open-circuit core (capacitive asymmetry) can be recognized at the
display by quickly reversing test voltage polarity.
The conductor is good if the bar graph lengths are the same in the
a-E and b-E selector switch positions.
Cable Length Measurement
Bar graph length is directly proportional to cable
length. Capacitance per meter also appears as a digital display.
Automatic Storage of Measured Values
The DATA HOLD function automates the storage of
measured values after they have settled in. A patented process
assures that random values are not saved to memory in the case of
rapidly
changing measured quantities, but rather the actual measured value.
The stored measured value appears at the digital display. The analog
display continues to read out the current measured value.
