User Manual

GMC-I Messtechnik GmbH 43
Measurements: V/Hz, , , Temp (°C/°F), , M
@UISO
, A/Hz
5.8.1 Direct and Pulsating Current Measurement, Direct Connection,
A DC and A (DC+AC)
First disconnect supply power from the measuring circuit or
the power consumer (1), and discharge any capacitors.
In accordance with the current to be measured, set the rotary
switch to A or A .
Select the type of current appropriate for the measured
quantity by briefly pressing the FUNC | ENTER multifunction key.
Each time the key is pressed, the instrument is switched back
and forth between A DC and A (DC + AC)
TRMS
, which is indi-
cated by means of an acoustic signal. The current type is indi-
cated at the LCD by means of the DC or the (DC+AC)
TRMS
symbol.
Safely connect the measuring instrument (without contact
resistance) in series to the power consumer (2) as shown.
Switch supply power to the measuring circuit back on (3).
Read the display. Make a note of the measured value if the
instrument is not being operated in the memory mode or the
transmission mode.
Disconnect supply power from the measuring circuit or the
power consumer (1) once again, and discharge any
capacitors.
Remove the test probes from the measuring point and return
the measuring circuit to its normal condition.
COM mA A
V
Temp
MISO
~
R
x
~
R
x
1
3
2
!
A
A
003
.
50
mA
DC
003
.
50
mA
DC
AC
TRMS
A
A
A: 0.1 A . . . 11 A
A: 10 A . . . 11 A
6 ranges: 300 A, 3 mA, 30 mA, 300 mA, 3 A and 10 A
88
.
8
.
8
.
8
!
I > 11 A
Current
Current
Measuring Ranges:
Current measurement
may only be performed
with installed batteries!
FUNC
ENTER
MEASURE
SETUP
... SET ... CL IP
FUNC
ENTER
FUNC
ENTER
 0ff