VOLTCRAFT MT-52 Bedienungsanleitung Seite 37

9 Product description
The multimeter (referred to as DMM in the following) indicates measured values on the digital display� The measured
value display of the DMM comprises 4000 counts (count = smallest display value)� Voltage and current measurement
is performed as an effective median value�
The measuring device includes 4 environmental measuring functions for relative humidity, temperature (air and sensor
measurement), linear noise level (for orientation of noise sources) and strength of illumination� The lighting sensor
includes an IR filter that only measures the visible light range.
The display can be lit for a if you are working in a badly lit environment�
If the DMM is not operated for approx� 30 minutes, it automatically switches off� This saves battery power and extends
the period of operation� The meter can be used for do-it-yourself or for professional applications�
For better readability, the DMM can also be optimally mounted with the clip on the rear�
The measuring leads are equipped with transport protection caps at the plugs and measuring prods� Remove them
before using the measuring leads�
Rotary switch (4)
1
The individual measuring functions are selected via a rotary switch� The automatic
range selection is active if the "auto" symbol is displayed� The appropriate range
of measurement is set individually for each application� If the meter switch is set to
"OFF", the meter is switched off� Always turn the device off when it is not in use�
10 Display indications and symbols
This is a summary of all possible symbols and information on the MT-52�
Auto means "automatic measuring range selection"
Symbol for display illumination
Symbol for the integrated fuses
OL or I Overload = the measuring range was exceeded
OFF Switch position "Measuring device off"
Battery replacement symbol; please replace the batteries immediately to avoid measuring errors!
Symbol for the diode test
Symbol for the acoustic continuity tester
dBC Symbol for noise level measuring range (C-characteristic = linear)
CAP Capacity measuring range
Alternating current for voltage and current
AC
Direct current for voltage and current
DC
- Polarity indication in case of minus potential
mV Millivolt (exp�-3)
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