Datasheet

2 GMC-I Messtechnik GmbH
METRAHIT ISO and METRAHIT COIL
TRMS Multimeter with Insulation Measurement
and Interturn Short-circuit Measurement (C
OIL only)
Automatic/Manual Measuring Range Selection
Measured quantities are selected with the rotary switch. The mea-
suring 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.
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 appears at the digital display.
The analog display continues to read out the current measured
value.
Overload Protection
Overload protection safeguards the instrument in all measuring
functions against voltage of up to 1000 V. Voltages of greater than
1000 V and currents of greater than 10 A are indicated acousti-
cally. FUSE appears at the display if the fuse for the current mea-
suring input blows.
Battery Charging Status – Power Saving Circuit
The battery charging status is indicated by means of four symbols.
The device is switched off automatically if the measured value
remains unchanged for a period of between 10 and 59 minutes
(adjustable), and if none of the controls are activated during this
time. Automatic shutdown can be deactivated by switching the
instrument to continuous operation.
Three Connector Jacks with Automatic Blocking Sockets (ABS) *
All current ranges are implemented via a single connector jack
which prevents any possibility of operator error. Beyond this, the
automatic blocking sockets prevent incorrect connection of the
measurement cables, as well as selection of the wrong measured
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 battery and fuse compartments
• Intelligent key functions with SMD button
The instrument is protected against damage in the event of
impacts or dropping by means of a soft rubber cover with tilt
stand and test probe holder. The rubber material also assures
that the instrument does not wander if it is set up on a vibrating
surface.
Infrared Data Interface
The device can be remote configured, and momentary and saved
measurement data can be read out via the bidirectional infrared
interface. The USB⏐ X-
TRA interface adapter and METRAwin 10 soft-
ware are required to this end (see accessories). 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 to 3 years for calibration (depending upon application)
DAkkS calibration certificate
METRAHIT ISO cable multimeters are furnished with an
internationally valid DAkkS calibration certificate (recognized by
EA and ILAC).
In addition to standard quantities, our DAkkS calibration lab is also
accredited for high value ohmic resistance of up to 30 G
Ω / 1000 V.
A
fter the specified calibration interval has elapsed (recommended
interval: 1 to 3 years), the multimeters can be inexpensively
recalibrated at our own DAkkS calibration center.
Overview of Features Included
1
For 15,000 measured values, sampling rate adjustable from 0.1 seconds to 9 hours
Scope of Delivery
1 Insulation multimeter METRAHIT ISO or METRAHIT COIL
1 Protective rubber cover
1
Pair of safety measurement cables with 4 mm test probes,
1000 V CAT II, 600 V CAT III (KS17-2)
1 DAkkS calibration certificate
2 Batteries, 1.5 V, type AA, installed
1 COIL TEST ADAPTER for interturn short-circuit measurement
(only in combination with METRAHIT COIL)
1 Condensed operating instructions*, English/German
* Detailed operating instructions are available for download on the Internet
at www.gossenmetrawatt.com
Function METRAHIT ISO METRAHIT COIL
V AC+DC TRMS (Ri = 1 M Ω )
••
V AC / Hz TRMS (Ri ≥ 9 M Ω )
•
filter
•
filter
V AC+DC TRMS (Ri
≥ 9 M Ω )
••
V DC (Ri ≥ 9 MΩ)
••
Hz (V AC)
... 300 kHz ... 300 kHz
Bandwidth, V AC
15 Hz ... 10 kHz 15 Hz ... 10 kHz
A AC / Hz TRMS
300 μA
3/30/300 mA
3 A / 10 A
300 μA
3/30/300 mA
3 A / 10 A
A AC+DC TRMS
A DC
Fuses
10 A / 1000 V 10 A/1000 V
Transformation Ratio
mV/A, mA/A mV/A, mA/A
Hz (A AC)
... 30 kHz ... 30 kHz
Insulation resistance M Ω @
UISO
test voltage selectable test voltage selectable
Interturn short-circuit
measurement M Ω
COIL
— •
Duty cycle measurement %
— •
Resistance Ω
••
Continuity
••
Diode ... 5.1 V
••
Temperature TC (K)
••
Temperature RTD
••
Capacitance
••
Min-Max / data hold
••
4 MBit memory
1
••
IR Interface
••
Power pack socket
••
Protection
IP 54 IP 54
Measuring category
1000 V CAT II, 600 V CAT I II 1000 V CAT II, 600 V CAT II I
1 kHz
1kHz