User manual

8 GMC-I Messtechnik GmbH
8 Current Measurement
➭ First disconnect supply power from the measuring circuit
or the consuming device, and discharge any included
capacitors.
➭ Select the A range with the rotary selector switch for
current greater than 600 mA, or the mA range for
current less than 600 mA. Activate the highest measuring
range first when measuring current of an unknown
magnitude.
➭ Select the current type appropriate for the measured
quantity by briefly pressing the FUNC key. Each time the
key is pressed, DC and AC are alternately selected, and
switching is acknowledged with an acoustic signal. The
selected current type is indicated at the LCD by means of
the DC and AC symbols.
DC current is always active immediately after range
selection with the rotary selector switch.
➭ Securely connect the measuring instrument to the
consuming device in series as shown (without transfer
resistor).
FUNC
brief
1x
A
...6 A
!
00.00
A
Current
~ ~
1
3
2
A: 6A  10.00 A
Measuring Range:
MM
>11A:
!
0.000
A
acoustic signal
acoustic
signal
...10 A
DC  AC~
AC ~  DC
DC
AC ~
TRMS
DC
AC ~
TRMS