Atec Gossen-Metrawatt-5000DPI - Manual

3-349-209-03
11/6.13
GMC-I Messtechnik GmbH
METRISO 5000 D-PI
Digital High-Voltage Insulation Tester
DQS certifizied per
QUALITY MANAGEMENT SYSTEM
DIN EN ISO 9001:2008
Reg. No.1262QM
Deutsche
Akkreditierungsstelle
D-K-15080-01-01
Features
Test Voltages to 5000 V
The instrument is suitable for non-destructive measurement of
insulation resistance in electrical systems, as well as in machines,
transformers, cables and electrical equipment utilized in, for
example, locomotives, street cars and ocean going vessels with
selectable test voltages of up to 5 kV.
Voltage Measurement to 1000 V
Testing for absence of voltage at the device under test in systems
of up to 1 kV can be performed with the voltage measuring range.
Discharging Capacitive Devices Under Test
Capacitive devices under test such as cables and coils, which
may be charged by the test voltage, are discharged by the mea-
suring instrument. The falling voltage value can be observed at
the display.
Measurements per EN 61557 Parts 1 and 2 (VDE 0413)
Nominal current amounts to 1 mA at a test voltage of 100 V,
250 V, 500 V or 1000 V.
Highly Insulated Measurement Cables
The highly insulated measurement cables are permanently con-
nected for safety reasons, and due to technical measuring con-
siderations. Danger resulting from inadvertently disconnected
cables, for example in the event of charging caused by capacitive
devices under test, is thus avoided.
Polarization Index
A polarization index test is recommended for electrical machines.
This procedure involves expanded testing of insulation resistance.
DC measuring voltage from the METRISO 5000 D-PI is applied to
the insulation for a duration of 10 minutes. Measured values are
documented after one minute, and after ten minutes. If the insula-
tion is good, the value measured after ten minutes is higher than
the value measured after one minute. The relationship between
the two measurement values is the polarization index. Charged
material within the insulation is aligned due to the application of
measuring voltage over a long period of time, resulting in polariza-
tion. The polarization index indicates whether or not the charged
material contained in the insulation can still be moved, thus allow-
ing for polarization. This, in turn, is an indication of the condition of
the insulation.
Data Management and Report Generation
The data of each measurement can be stored under a selected
object number. Furthermore, a description for this object can be
entered via the keyboard of the optional PSI module (Feature I1).
The data management function allows for individual measurement
data of a previously selected object to be displayed and to be
deleted if required, or for previously entered objects to be deleted.
Depending on the number of stored objects (max. 254), up to
1,600 measurements can be stored. The current memory occu-
pancy is continuously displayed as a bar graph.
Report data can be printed out at an external printer with Cen-
tronics interface via PSI module (Feature I1) or via printer adapter
DA-II (accessory).
Furthermore, it is possible to create report templates at a PC
which can be downloaded to the test instrument.
• Large measuring range from 0.4 M
 ... 1 T
• Variable test voltages, or in fixed steps of
100 V, 250 V, 500 V, 1.0 kV, 1.5 kV, 2.0 kV, 2.5 kV, 5.0 kV
• Polarization index and absorption ratio
• Voltage measurements to 1000 V
• Frequency measurement from 15 Hz to 1 kHz
• Capacitance measurement from 0.1 to 5
F
• Measurement of electrical discharge
• Guard terminal for the compensation of surface currents
• 5 m extension cable included as accessory
• Supply power from mains, internal set of storage batteries or
external 12 V supply
• Backlit dot matrix display
• Digital display of measured values and limit values
• Timer function: 1 second to 100 minutes
• Data logger function
• DAkkS calibration certificate
Applications
Insulation measurement in large systems, and for cables, motors,
generators etc.