Metrahit Especial Only) - Gossen MetraWatt METRAHIT EXTRA Operating Instructions Manual

5.7.2 Alternating Current and Frequency Measurement,
Direct Connection, A AC and Hz
(METRAHIT E , METRAHIT E
XTRA
METRAHIT E only)
SPECIAL
Ð First disconnect supply power from the measuring circuit or
the power consumer (1), and discharge any capacitors.
Ð In accordance with the current or frequency to be measured,
turn the rotary switch to A~ or Hz.
Ð Select the desired measured quantity by briefly pressing the
FUNC | ENTER multifunction key. Each time the key is pressed,
AC and Hz are alternately selected, and
TRMS
switching is acknowledged with an acoustic signal.
Ð Safely connect the measuring instrument (without contact
resistance) in series to the power consumer as shown.
Ð Switch supply power to the measuring circuit back on (3).
Ð 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.
Ð Disconnect supply power from the measuring circuit or the
power consumer (1) once again, and discharge any
capacitors.
Ð Remove the test probes from the measuring point and return
the measuring circuit to its normal condition.
GMC-I Messtechnik GmbH
and
TECH
V/Hz, , Temperature,
A~
Hz
Current measurement
!
may only be performed
with installed batteries!
8.8.8.8.8
Measuring Ranges:
METRAHIT E
SPECIAL
6 A / 10 A (16 A max. 30 s)
METRAHIT E
TECH
60 mA / 600 mA
6 A / 10 A (16 A max. 30 s)
METRAHIT E
XTRA
600 A / 6 mA
60 mA / 600 mA
6 A / 10 A (16 A max. 30 s)
1
~
R
x
and A/Hz Measurements
003.50
A~
AC
TRMS
A
FUNC
ENTER
050.10
Hz
AC
Hz
COM mA A
!
I > 10 A
2
3
I > 16 A
~
Strom
R
x
43