10 kV Insulation Tester
10 kV Insulation Tester
Operates from mains supply or
rechargeable battery
Real time data output and on-board
storage for subsequent download
Integral lead storage
Results displayed as insulation resistance
or leakage current
Integral timer for automatic Insulation
Resistance and Polarisation Index tests
indicate the presence of a dangerous voltage.
The Megger MEG10-01 is a compact, microprocessor
controlled high voltage d.c. insulation tester, which may be
powered by internal rechargeable batteries or by
connection to an a.c. supply. It is built into an extremely
robust moulded case with internal provision for test lead
and mains power cord storage.
The battery condition is continually monitored while the
instrument is switched on and the battery condition is
shown by a 5-segment bar graph on the display.
Measurement results are clearly displayed on the custom
digital and analogue LCD display as either an Insulation
Resistance or a Leakage Current.
The measurement range, subject to test voltage, is up to
500 GW on the digital display, and to 1TW at all voltages
on the analogue scale. Test voltages of 500V, 1000V,
2500V, 5000V and 10,000V are available and are selected
by a two buttons on the front panel.
IEEE43: 2000 "IEEE Recommended Practice for Testing
Insulation Resistance of Rotating Machinery" now offers
the option of testing machines rated above 12kV at 10 kV
instead of the previous 5kV maximum. The 10kV range
on the MEG10-01 allows this test to be easily achieved.
An integral timer is started automatically on
commencement of a test, which displays elapsed time in
minutes and seconds. This timer may also be used to
automatically stop an insulation resistance test and an
automatic Polarisation Index test. At the end of any test,
capacitive loads are automatically discharged and the
decaying voltage is displayed until it reaches a safe level.
At any point, a flashing LED and segments on the display
Power is provided by an a.c. supply or from an internal
rechargeable battery which when fully charged is capable
of providing at least 4 hours continuous testing at 10kV
before requiring recharge.
For those users who prefer to store their test results for
later download, the MEG10-01 has on-board memory
capable of storing typically 30 test summaries although this
will vary according to the type of test and test duration.
This summary information is suitable for reporting
However, if long term testing is required with more
detailed data, the MEG10-01 outputs data over its RS232
port every second, in real time. A PC may be used to
capture this data and under these circumstances the
amount of data is limited by the amount of storage space
available on the PC. The volume of data only consumes
approximately 2.4 kB for every minute of output. This
real time feature allows detailed data to be captured for
later analysis.
Manufacturers, users and maintainers of rotating machinery
will find the Megger MEG10-01 a perfect every day work
10 kV Insulation Tester
Designed in accordance with the requirements of IEEE43:
2000 the MEG10-01 is the ideal instrument for measuring
the insulation resistance of armature and field windings in
rotating machines rated 1hp (750 W) or greater. The
standard applies to synchronous, induction and d.c.
machines as well as synchronous condensers.
Accuracy (23°C)
±2% ±1V.
The Megger MEG10-01 also performs automatic
Polarisation Index tests. This test is routinely performed
on a variety of equipment and cables to assess the general
condition of the insulation before applying a potentially
destructive applied voltage test at voltages greater than
rated voltage.
0:00 to 99:59 minutes. Instrument can be set to stop a test after a
time limit, or to run indefinitely.
Interference rejection
1 mA r.m.s. per kV to a maximum of 2 mA.
Capacitor discharge time
<2 s per µF to discharge from 10 kV to 50 V.
Instrument Display
3 digit LCD Analogue/Digital
Power supply
Rechargeable, sealed lead-acid batteries (12 V, 4 Ah), or 95 V to
265 V 50/60 Hz supply.
Battery life
Typically 4 hrs continuous testing at 10 kV, increasing to
8 hours at 5 kV and lower. Remaining battery life indicated on
Test Voltages (d.c.)
500 V, 1000 V, 2500 V, 5000 V, 10000 V
Test Voltage Accuracy
±5% on 100 MΩ load and above
Battery charging
Charging takes approximately 12 hours from ac supply in the
range 95 to 265 V.
Insulation resistance ranges
10 kΩ to 50 GΩ @ 500 V
10 kΩ to 100 GΩ @ 1000 V
Temperature range
10 kΩ to 250 GΩ @ 2500 V
-20°C to +50°C (4°F to 122°F)
10 kΩ to 500 GΩ @ 5000V
10 kΩ to 500 GΩ @ 10000 V
-25°C to +65°C (-12°F to 149°F)
100 kΩ to 1 TΩ @ all voltages
Humidity: 90% R.H. @ 40°C (104°F)max.
Accuracy (at 23°C)
±5% on 100 MΩ load
Temperature coefficient
±0,1% per °C over the test voltage over the temperature range 0°C
to +30°C. (±0.06% per °F)
Basic Accuracy
±5% of reading 10 MΩ to 100 GΩ, all voltages
Instrument protection.
IP54 with case closed.
Current Range
0,01 nA to 999 µA
The instrument meets the requirements of EN61010-1:2001 for
operation at an altitude of 2000 m above sea level or less.
Accuracy (at 23°C)
±5% +/- 1nA on 100 MΩ load.
Basic Accuracy
±5% of reading 10 MΩ to 100 GΩ all voltages
The instrument meets the requirements of EN61326-1:1998 for use
in areas other than domestic.
2% error guarding 500 kΩ leakage with 100 MΩ load.
385mm x 265mm x 250mm (15 x 10 x 9 inches)
Short circuit current
5mA nominal.
7 kg (15 lb) approx
Voltmeter range
50 to 1000 V d.c. or a.c.
Item (Qty)
10kV Insulation Tester
Complete with
3m Lead set
AVO Download Manager
User Guide on CD-ROM
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
Order No.
4271 Bronze Way
Dallas TX 75237-1019 USA
T 800 723 2861 (USA only)
T +1 214 333 3201
F +1 214 331 7399
Item (Qty)
RS232 download cable
Quick Start Guide (English)
Quick Start Guide (French)
Warranty card
Norristown USA, Toronto CANADA,
Mumbai INDIA, Trappes FRANCE,
and the Kingdom of BAHRAIN.
Order No.
Registered to ISO 9001:2000 Reg no. Q 09290
Registered to ISO 14001 Reg no. EMS 61597
Megger is a registered trademark
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