Data Sheet
METRAHITIM XTRA & METRAHITIM E-DRIVE
Isolation Tester, Milliohmmeter,
TRMS Multimeter, Short-Circuited Coil Tester
2 GMC-I Messtechnik GmbH
Kelvin Connection for 4-Wire Measurement (4-L) (milliohm measurement)
The 4-wire measurement compensates for influences resulting
from cable and contact resistances which must not be neglected
when measuring very small resistances. Measuring current can
be set to 200 mA or 1 A. In this way, even extremely small con-
tact resistances can be measured, for example at welded and riv-
eted joints and on aircraft outer skins (lightning protection and
wick test), or equipotential bonding is measured in accordance
with UN ECE R100 in hybrid and electric vehicles.
2-Wire Rlo Measurement with 200 mA Test Current per EN 61557 / VDE 0413
Low-resistance measurement per EN 61557-4 / VDE 0413, part
4, for earth, protective and equipotential bonding conductors.
RMS Value with Distorted Waveform
The utilized measuring method allows for waveform-independent
TRMS measurement of periodic quantities (AC) and pulsating
quantities (AC and DC) for voltage and current at up to 100 kHz.
Activatable Filter for V AC Measurement
A 1 kHz low-pass filter can be activated if required, for example
when measuring cables with parasitic external signals. The input
signal is checked by a voltage comparator for dangerous voltages
as long as the low-pass filter is activated, and these are indicated
at the display if applicable.
Diode Testing with Constant Current I
k
= 1 mA
Testing of the polarity of diodes and checking for short-circuits
and interruptions in electrical circuits. The test voltage source
makes it possible to measure LEDs and reference diodes up to
4.5 V, e.g. also white LEDs.
Fast Acoustic Continuity Test I
k
= 1 mA
Testing for short-circuiting or interruption in the switch posi-
tion. The threshold value for acoustic signaling can be set to 1,
10, 20, 30, 40 or 90 .
Automatic/Manual Measuring Range Selection
Measured quantities are selected with the rotary switch.
The measuring range can be automatically matched to the mea-
sured value, or selected manually for quick, repetitive measure-
ments.
Color Graphic Display
A high-resolution transmissive 3½" TFT color graphic display with
320 x 480 dots is used for measured values and menu navigation.
The display is easily readable from all directions, as well as under
difficult lighting conditions (controllable with light sensor). Graphic
representation permits user-friendly menu navigation including
help texts.
Analog Bar Graph for Quick Trend Displays
The bar graph (with additional negative axis range for zero-fre-
quency quantities) permits faster detection of measured value
changes as compared with digital value displays.
Display Resolution
High resolution with 30,000 digits and a basic accuracy of 0.15%.
Automatic Storage of Measured Values
The DATA HOLD function automates the storage of measured val-
ues after they have settled in. A patented process assures that
random values are not saved to memory in the case of rapidly
changing measured quantities, but rather the actual measured
value. The stored measured value is displayed as a digital value.
The bar graph continuously indicates the momentary measured
value.
Overload Protection
Overload protection safeguards the instrument in all measuring
functions for up to 1000 V. Voltages of greater than 1000 V and
currents of greater than 1 A are indicated acoustically. FUSE
appears at the display if the fuse for the current or m
measure-
ment input
blows.
Battery Charge Level – Power Saving Circuit
The battery charge level is accurately indicated in the graphic dis-
play.
The device is switched off automatically if the measured value
remains unchanged for a period of between 10 and 59 minutes
(adjustable), if none of the controls are activated during this time
and continuous operation is not activated.
Automatic Blocking Sockets (ABS) *
All current ranges are implemented via a single connector jack
which prevents any possibility of operator error.
The automatic blocking sockets prevent incorrect connection of
the measurement cables, as well as selection of the wrong mea-
sured quantity. Danger to the user, the instrument and the device
under test resulting from operator error is thus ruled out.
* Patented (patent no. EP 1801 598 and US 7,439,725)
Housing and Protective Cover for Harsh Conditions
• New housing design
• Separate fuse compartment
• Quick-change rechargeable battery
The instrument is protected against damage in the event of
impacts or dropping by means of a soft rubber cover with tilt
stand. The rubber material also assures that the instrument
doesn’t wander if it’s set up on a vibrating surface
Data Interfaces
The instrument can be remote configured and momentary and
saved measurement data can be read out via a bidirectional wire-
less interface, Bluetooth or WLAN, or the USB port at the optional
mains module. IZYTRONIQ software is required to this end.
Interface protocol and device driver software for LabVIEW (National
Instruments™) are available upon request.
Voluntary Manufacturer’s Guarantee
36 months for materials and workmanship.
1 year for calibration.
DAkkS calibration certificate
The METRAHIT IM XTRA multimeter is furnished with a DAkkS cali-
bration certificate, which is also recognized internationally (EA,
ILAC).
After the user-specified calibration interval has elapsed (recom-
mended interval: 1 to 3 years), the multimeter can be inexpen-
sively recalibrated in our own DAkkS calibration laboratory.