Instructions
Table Of Contents
- 1 Safety Features and Precautions
- 2 Operating Overview – Connections, Keys, Rotary Switch, Symbols
- 3 Initial Start-Up
- 4 Control Functions
- 5 Measurements
- 5.1 Voltage Measurement
- 5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC)
- 5.1.2 Alternating Voltage Measurement with 1 MW Load Resistance and Frequency Measurement with Selectable Low-Pass Filter (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.1.3 Alternating Voltage and Frequency Measurement V AC and Hz with Selectable Low-Pass Filter (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.1.4 Frequency and Duty Cycle Measurements (METRA HIT Extra only)
- 5.2 Resistance Measurement, W
- 5.3 Continuity Test
- 5.4 Diode Testing with a Constant Current of 1 mA
- 5.5 Temperature Measurement
- 5.6 Capacitance Measurement (METRA HIT Extra and METRA HIT Etech only)
- 5.7 Current Measurement
- 5.7.1 Direct and Pulsating Current Measurement, Direct Connection, A DC and A (DC+AC) (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.7.2 Alternating Current and Frequency Measurement, Direct Connection, A AC and Hz (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.7.3 Direct and Pulsating Current Measurement with Current Clamp Sensors, A DC and A (DC+AC)
- 5.7.4 Alternating Current Measurement with Current Clamp Sensors, A AC and Hz
- 5.7.5 Direct, Pulsating and Current Measurement with Current Clamps Transformer A DC, A (DC+AC), A AC and Hz (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.1 Voltage Measurement
- 6 Device and Measuring Parameters
- 7 Interface Operation
- 8 Technical Data
- 9 Maintenance and Calibration
- 10 Accessories
- 11 Index
GMC-I Messtechnik GmbH 43
V/Hz, , Temperature, and A/Hz Measurements
5.7.3 Direct and Pulsating Current Measurement
with Current Clamp Sensors, A DC and A (DC+AC)
Transformer Output, Voltage/Current
When a current clamp sensor is connected to the multimeter
(V input (
METRAHIT EBASE
: V input)), all current displays appear with
the correct value in accordance with the selected transformation fac-
tor. The only prerequisite is that the current sensor is equipped with
at least one of the below listed transformation factors, and that the
factor has been previously selected in the following menu (
Cl ip
?
0FF
),
see also chapter 6.4.
Current Clamp Setup Menu
1nFo
... SET rAtE ... CLIP
1 / 10/100/1000 / 0ff
Maximum allowable operating voltage is equal to the current trans-
former’s nominal voltage. When reading the measured value, addi-
tional error resulting from the current clamp sensor must also be
taken into consideration.
(default setting:
METRAHIT E
XTRA
,
METRAHIT E
TECH
,
METRAHIT E
SPECIAL
:
OFF
,
METRAHIT E
BASE
:
1:1000
)
Trans. Factors
CL IP
Measuring Ranges DMM Clamp Types
600 mV 6 V
1:1
1mV/1mA
600.00 mA 6.0000 A
1:1
1mV/1mA
1:10
1mV/10mA
6.0000 A 60.000 A
1:10
1mV/10mA
1:100
1mV/100mA
60.000 A 600.00 A
1:100
1mV/100mA
1:1000
1 mV/1 A
600.00 A 6000.0 A
1:1000
1 mV/1 A
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
COM
V
Tem p
A
~
R
x
Current
003
.
50
A
1:1000
A
DC
003
.
50
A
1:1000
A
DC
AC
TRMS
A
A
FUNC
ENTER
R
i
R
i
= 9 M
COM
V
Tem p
V
~
R
x
Hz
Current
R
i
R
i
~ 1 M
METRAHIT EBASE
mA
METRAHIT EBASE
METRAHIT EXTRA,
V
V
METRAHIT ETECH,
METRAHIT E
SPECIAL
METRAHIT EXTRA,
METRAHIT E
TECH,
METRAHIT E
SPECIAL