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 Measurement
A 1 kHz 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, which are indicated at
the display if present.
Voltage Measurement with 1 MΩ Input Resistance
In addition to the usual voltage input with a input
resistance of 9 MΩ, which is selected via the VAC or VDC switch
position, the measuring instrument is also equipped with an
additional V1MΩ
TRMS (AC + DC) switch position for electricians with an input
resistance of approximately 1 MΩ. Negative influences resulting from
capacitive coupling during voltage measurement in power
supply systems are thus avoided.
Diode Testing with Constant Current Ic = 1 mA
This function can be used to test the polarity of
diodes, and to test electrical circuits for short-circuiting and
interruptions. The test voltage source makes it possible to measure
LEDs and reference diodes up to 5.1 V, e.g. also white LEDs.
Fast Acoustic Continuity Test Ik = 1 mA
Testing for short-circuiting and interruption is
possible with the selector switch in the position.
The threshold value for acoustic signaling can be set to 1, 10, 20,
30, 40 or 90 Ω.
Insulation Resistance Measurement with
Interference Voltage Detection
Depending upon the utilized instrument variant,
insulation resistance can be measured with an adjustable test
voltage of 50 to 1000 V.
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.
