User Manual

GMC-I Messtechnik GmbH 3
• Use original accessories only.
• Max. permissible voltage between test probe and ground is
300 V!
• Maximum permissible voltage between the test probes is
300 V!
1.4 General Device Description
The test instrument is enclosed in a compact housing with a pat-
ented means of retaining the test probes.
The high-contrast, four-color OLED display assures excellent legi-
bility. When performing measurements under unfavorable light
conditions, measuring point illumination can be switched on –
white LED at the front.
The following measurements can be performed with the Metraline
Z
check
:
• Fault loop impedance with short-circuit current
• Fault loop impedance with short-circuit current without trip-
ping the RCCB
• Line impedance with short-circuit current
• Line voltage
•Phase detection
The Metraline Z
check
allows for the evaluation of measured imped-
ance in consideration of type, nominal current and disconnection
time. A table with the parameters of various protective devices is
included in device memory (see section 5 on page 8 in these
operating instructions.
1.5 Applicable Standards
Measurement EMC Safety
EN 61557-1 EN 55022 class B EN 61010-1
EN 61557-2 EN 61326-1 EN61010-031
1.6 Environment
The shipping package is made of recyclable cardboard. Batteries
must be disposed of in accordance with applicable regulations.
This device may not be disposed of with the trash. Further infor-
mation regarding the WEEE mark can be accessed on the Inter-
net at www.gossenmetrawatt.com by entering the search term
“WEEE”.
2 Device Description
2.1 Housing
Figure 2.1: Top View
For transport purposes, the movable test probe can be attached
to the housing and retained by a magnet such that both metal tips
are simultaneously recessed and protected.
In order to charge batteries which have been inserted into the
instrument, the flexible test probe’s connector plug must be
removed and the slide must be pushed to the left, so that the
socket at the right is made accessible and the charger can be
plugged into it.
Figure 2.2: Detail View of the Back Panel with Battery Compartment Lid
2.2 Control Panel
1 Graphic OLED Display
2 START key:
– Switch on:
Press and hold until the
display lights up.
– Start measurement:
Press and hold until measure-
ment starts.
– Measurement point illumina-
tion:
Press briefly to switch illumi-
nation on and off.
– Switch off:
Press twice briefly to switch
the instrument off.
3 ~ / RCD key
Measuring function selection:
with/without RCCB
4The T
A
key is used to select
the value from the table of
protective devices, which is
used to adjust disconnection
time for evaluating measured
values.
5 DISP
▲ and
DISP ▼ keys for selecting the
protective device for the evaluation of measured values
Figure 2.3: Control Panel and OLED Display
Data can be represented at the OLED display in two different
ways:
• Brief representation: Measured quantities appear at the display
with large numbers, but no evaluation of the measurement
data is included.
• Detailed representation: Measured quantities appear at the dis-
play along with information from the protective devices data-
base, as well as the symbol for “corresponds / does not cor-
respond with the measured impedance”.
Phase and battery level are displayed in both modes.
Refer to the description in section 3.5 on page 6
!
Fixed Test Probe Attached to the Device
LED
OLED Display
Socket for Flexible Test Probe
Socket for Charger
P
l
u
g
-
I
n
M
o
b
i
l
e
T
e
s
t
P
r
o
b
e
Plastic
Control Panel
Housing
Figure 2.4: Example of Brief
Representation
Figure 2.5: Example of Detailed
Representation
Screws for Battery Compartment Lid
Battery Compartment with Fuse
Battery Compartment Lid
Serial Plate
3
1
2
4
5
5