Sonel CMM-40 Manual De Uso página 50

6 Rotational selector
Selection of function:

μA – direct and alternative current measurement up to
4000μA,

4~20mA% – loop current measurement,

mA – direct and alternative current measurement up to
400mA,

10AHz% – direct and alternative current measurement up
to 10A, frequency and duty cycle measurement,

OFF – meter off,

Hz% – alternative voltage, frequency and duty cycle
V
AC
measurement,

V
DC

mV – direct and alternative voltage measurement up to
400mV,

Hz% – frequency and duty cycle measurement,

Ω
measurement and diode testing,

Temp – Celsius or Fahrenheit temperature measurement.
10 Backlight button
Display backlit
11 EXIT(AC+DC) button

Exit

Measurement of the trms value
12 HOLD(PEAKHOLD>) button

Holding the measurement result on the display
13 REL(+) button

Relative measurement
48
– direct voltage measurement,
CAP – resistance, capacitance and continuity
CMM-40 – USER MANUAL