Current Measurement; The Range Of 10 A; Range Of Ma, Μa - Sonel CMM-30 Manual De Uso

5.8 Current measurement

WARNING
To avoid the electric shock, the device must not be
connected to circuits in which the measuring voltage
exceeds 1000 V.
CAUTION!
Do not make current measurements of 10 A for longer than
30 seconds. Exceeding this time may cause damage to the
meter and/or test leads. When the current of 10 A, the in-
terval between successive tests should be approx. 15 mi-
nutes.

5.8.1 The range of 10 A

To perform the current measurement:
 set the rotary switch at
 press MODE
display:

, if you are measuring Alternating Current,

, if you are measuring Direct Current,
 connect black test lead to COM terminal and red test lead to 10A
terminal,
 disconnect the power supply from the tested circuit and then con-
nect the meter in series (for DC circuits: connect the red probe to
the positive pole),
 turn on the power supply of the circuit,
 read the measurement result on the display.
5.8.2 Range of mA, µA
To perform the current measurement:
 set the rotary switch at
(it is recommended to start the measurement from the posi-
tion of the rotary switch in the higher range)
 press MODE
play:

, if you are measuring Alternating Current,
10A ,
button to display the following symbols on the
mA or
button to display the following values on the dis-
CMM-30 – USER MANUAL
μA
55