Datasheet
3-349-415-03
4/5.09
GMC-I Messtechnik GmbH
DQS Certified per
DIN EN ISO 9001 reg. no. 1262
Quality Management System
Calibration Certificate
METRAHITISO
TRMS Multimeter with Insulation Measurement
600 V CAT III
1000 V CAT II
Included
Application
The METRAHITISO multimeter is a rugged portable measuring
instrument. It is suitable for servicing household appliance,
machines (e.g. forklifts) and systems (e.g. photovoltaic). The
instrument can be used in the field and is equipped with an inter-
nal, mains-independent power supply.
Features
RMS Value with Distorted Waveshape
The utilized measuring method allows for waveshape independent
TRMS measurement of periodic quantities (AC) and pulsating
quantities (AC and DC) for voltage and current at up to 10 kHz.
Activatable Filter for V AC Measurement
A 1 kHz low-pass filter can be activated if required, e.g. for
measurements at 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, which are indicated at
the display if present.
Diode Testing with Constant Current I
c
= 1 mA
This function can be used to test the polarity of diodes, and to
test electrical circuits for short-circuiting and interruptions. The
test voltage source makes it possible to measure LEDs and
reference diodes up to 5.1 V, e.g. also white LEDs.
Fast Acoustic Continuity Test I
k
= 1 mA
Testing for short-circuiting and interruption is possible with the
selector switch in the position. The threshold value for
acoustic signaling can be set to 1, 10, 20, 30, 40 or 90 .
Insulation Resistance Measurement with Interference Voltage Detection
Depending upon the utilized instrument variant, insulation resistance can
be measured with an adjustable test voltage of 50 to 1000 V.
If the instrument detects interference voltage of greater than
15 V AC or 25 V DC during insulation testing, an error message is
briefly displayed at the LCD panel. The instrument is then
automatically switched to voltage measurement TRMS (AC + DC)
with an input resistance of approximately 1 M and the currently
measured voltage value is displayed.
Analog Scale for Quick Trend Display – Pointer
The analog scale (with additional negative axis range for zero-
frequency quantities) allows for faster recognition of measured
value fluctuation than is possible with a digital display.
Automatic/Manual Measuring Range Selection
Measured quantities are selected with the rotary switch. The
measuring range can be automatically matched to the measured
value, or selected manually.
High Resolution Mode
Via mem function „Set Resol“, the multimeter (in V DC and Ohm-
function) can be switched to a high-resolution operating mode
with 30,000 digits and enhanced accuracy.
• Insulation resistance measurement with interference voltage
detection, test voltages: 50 V, 100 V, 250 V, 500 V, 1000 V
• Multimeter with diverse functions (V, , F, Hz)
•
TRMS measurements:
TRMS AC / AC+DC for current/voltage up to 10 kHz
• Activatable low-pass filter, 1 kHz/–3 dB in the V AC range
• Direct current measurement, 100 nA to 10 A
• Current measurement with clip-on current sensors – CLIP
A transformation ratio of 1 mV:1 mA to 1 mV:1 A can be
selected and is taken into consideration at the display.
• Precision temperature indicator, °C or °F, for Pt100/Pt1000
sensors and type K thermocouples
•
Diode measurement
(I
K
= 1 mA, U
flow
to 5.1 V) and
continuity testing
• Display: 4¾ place, 30000 digits, illumination can be activated
•
Acoustic signals
for: continuity testing, dangerous contact
voltages, exceeded overload limits
• Min-Max value storage
• Data memory and internal clock, power pack adapter socket
• IP 54
Housing
protection, dust and splash protected, protective cover
• Bidirectional infrared interface
for exchanging data with a PC
• Windows software available as accessory for processing and
graphic display of measured values via USB interface