7 µA/mA measuring jack
8 COM measuring jack (reference potential, “Minus”)
9
VΩ measuring jack (with commensurability “Plus”)
10 Light button for display lighting
11 Hz/% button for function switching in the voltage, power and frequency range
12 HOLD key
13 NVC lighted display for AC voltage detection
14 Sensor aperture for indoor air humidity measurement (relative humidity and temperature)
15 Light sensor
16 Sensor aperture for sound volume measurement
17 Clamp for measuring prod attachment
18 Battery compartment
19 Foldable mounting brackets
8. 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
AC Alternating current for voltage and current
DC Direct current for voltage and current
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