GMC-I Messtechnik GmbH
37
Measurements: V/Hz –
–
– Temp –
– m – A/Hz
5.7.1 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
a
E
b
~
R
x
~
R
x
1
3
2
!
A
A
0
03
.
50
mA
DC
0
03
.
50
mA
DC
AC
TRMS
A
A
A
:
0.1
A . . . 1.1 A
A
:
3
A . . . 1.1 A
5 ranges:
300
A, 3 mA, 30 mA, 300 mA and 1 A
8
8
.
8
.
8
.
8
!
I > 1.2 A
Current
Measuring ranges:
FUNC
ENTER
Current measurement may
only be performed with
installed batteries!
Summary of Contents for METRAHIT T-COM PLUS
Page 5: ...GMC I Messtechnik GmbH 5 Standard Equipment Contact Persons ...
Page 11: ...GMC I Messtechnik GmbH 11 Safety Warnings ...
Page 25: ...GMC I Messtechnik GmbH 25 Control Functions ...
Page 41: ...GMC I Messtechnik GmbH 41 Measurements V Hz Temp m A Hz ...
