MIT520/2 and MIT1020/2
5 kV and 10 kV Insulation Resistance Testers
MIT520/2 and MIT1020/2
5 kV and 10 kV Insulation Resistance
Testers
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CAT IV 600 V
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Mains or battery powered
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Variable test voltage from 50 to 5000 or
10,000 V
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Automatic IR, PI, DAR, SV and DD tests
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Measures to 15 TΩ (5 kV) and 35 TΩ
(10 kV)
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RS232 and USB download of results to
Megger Download Manager
DESCRIPTION
The new 5 and 10 kV insulation resistance testers from
Megger are designed specifically to assist you with the testing
and maintenance of high voltage electrical equipment. IEEE
43-2000 recommends the use of 10 kV for motor windings
rated above 12 kV and the Megger MIT1020/2 facilitates this.
The case is incredibly rugged and easy to carry, being made
of tough polypropylene and achieving an ingress protection
rating of IP65. In addition, the model number is marked on
both sides of the case for ease of identification in stores or
vehicles.
The instruments have a large easy to read backlit LCD
display making it equally suitable for use in both bright
sunlight and poorly lit environments. Information displayed
includes resistance, voltage, leakage current, capacitance,
battery status and time constant. In addition, the elapsed
time of the test is displayed constantly, removing the need
for separate timers. Adjustable timers and limit alarms are
included.
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On board memory for results storage
The instrument is fitted with a guard terminal to enhance
accuracy. The guard test lead is included as standard with the
instrument.
To further enhance the flexibility of the instruments both
have the facility to set the test voltage in steps from 50 V to
the maximum output voltage avoiding the expense of several
insulation resistance testers to meet your application needs.
These IR instruments are designed to meet the highest safety
standards and meet the requirements of EN61010. In addition,
the instrument measures the voltage at the terminals and if
this is above 50 V then the instrument will display the high
voltage warning and inhibit testing. At the end of the test the
instrument will automatically discharge the energy transferred
to the equipment during the test phase.
The MIT520/2 and MIT1020/2 are equally suited to routine
testing and diagnostic regimes being pre-programmed with
IR, PI, DAR, SV and DD profiles.
The instrument can test when being powered by the mains
or its internal rechargeable battery, a great benefit when site
conditions are unknown or long term testing is required.
The controls of the instrument are clear and unambiguous
and a “quick start” guide is included in the lid of the instrument
removing the need to carry bulky manuals under site conditions.
MIT520/2 and MIT1020/2
5 kV and 10 kV Insulation Resistance Testers
SPECIFICATION
Voltage input range
85-265 V rms, 50/60 Hz, 60 VA
MIT520/2 battery life
Typical capacity is 6 hours continuous testing at 5 kV with a 100 MΩ
load
MIT1020/2 battery life
Typical capacity is 4 hours continuous testing at 10 kV with a
100 MΩ load
MIT520/2 test voltages
50 V to 1 kV in 10 V steps, 1 kV to 5 kV in 25 V steps
MIT1020/2 test voltages
50 V to 1 kV in 10 V steps, 1 kV to 10 kV in 25 V steps
MIT520/2 accuracy (23 °C, 5 kV)
5000 V 2500 V 1000 V 500 V 250 V
±5% to 1 TΩ 500 GΩ 200 GΩ 100 GΩ 50 GΩ
±20% to 10 TΩ 5 TΩ 2 TΩ 1 TΩ 500 GΩ
MIT1020/2 accuracy (23 ºC, 10 kV)
10 kV 5000 V 2500 V 1000 V 500 V 250 V
±5% to 2 TΩ 1 TΩ 500 GΩ 200 GΩ 100 GΩ 50 GΩ
±20% to 20 TΩ 10 TΩ 5 TΩ 2 TΩ 1 TΩ 500 GΩ
Guard
2% error guarding 500 kΩ leakage with 100 MΩ load
Display range
Digital display (3 digits) 10 kΩ to 15 TΩ (MIT520/2)
to 35 TΩ (MIT1020/2)
Analogue display 100 kΩ to 1 TΩ
Short circuit/charge current
3 mA @ 5 kV (MIT520/2) or 10 kV (MIT1020/2)
Capacitor charge time
<3 seconds per µF at 3mA to 5 kV (MIT520/2)
<5 seconds per µF at 3mA to 10 kV (MIT1020/2)
Memory capacity
32 kB
Test regimes
Auto IR, PI, DAR, SV and DD.
Interface
RS232 and USB
Data store
Voltage, test time, leakage current, resistance, PI, DAR, DD,
capacitance and time constant
Real time output
Serial, once per second of test voltage, current and resistance
Operating temperature
-20 °C to 50 °C
Storage temperature
-25 °C to 65 °C
Ingress protection (lid closed)
IP65
Humidity
90% RH non-condensing at 40 °C
Safety
Meets the requirements of IEC61010-1 CATIV 600 V
EMC
Meets the requirements of IEC61326-1
Dimensions
305 x 194 x 360 mm (12.7 x 6 x 14.2 inches)
Weight
7.1 kg (16lb) approx.
Capacitor discharge time
<120ms per µF to discharge from 5000 V to 50 V (MIT520/2)
<250ms per µF to discharge from 10000 V to 50 V (MIT1020/2)
Capacitance measurement (above 500 V)
10 nF to 50 µF (dependent on measurement voltage)
Capacitance measurement accuracy (23 °C)
±5% ±5 nF
Voltage output accuracy (0 °C to 30 °C)
+4%, -0%, ±10 V of nominal test voltage at 1 GΩ load
Current measurement range
0.01 nA to 5 mA
Current measurement accuracy (23 °C)
±5% ±0.2 nA at all voltages
Default voltmeter range:
50-600 V a.c. or d.c. Accuracy (23 ºC) + or -2% + or -1 V
Interference rejection
MIT520/2 1 mA per 250 V up to a maximum of 2 mA
MIT1020/2 1 mA per 600 V up a maximum of 2 mA
Timer range
Up to 99 minutes and 59 seconds from start of test
15 second minimum setting for test voltage ≥1000 V
30 second minimum setting for test voltage <1000 V
MIT520/2 and MIT1020/2
5 kV and 10 kV Insulation Resistance Testers
ORDERING INFORMATION
Item (Qty) Order Code
5 kV insulation resistance tester MIT520/2
10 kV insulation resistance tester MIT1020/2
Included Accessories
3 m lead set insulated clips 1002-531
User guide on CD-ROM 2000-213
RS232 cable 25955-025
USB cable 25970-041
3 x 3 m lead set insulated clips (MIT1020/2 only) 1002-534
Optional Accessories
HV test lead sets
3 x 3 m with un-insulated small clips 8101-181
3 x 8 m with un-insulated small clips 8101-182
3 x 15 m with un-insulated small clips 8101-183
3 x 5 m with medium insulated clips 1002-641
3 x 8 m with medium insulated clips 1002-642
3 x 10 m with medium insulated clips 1002-643
3 x 15 m with medium insulated clips 1002-644
3 x 5 m with large insulated clips 1002-645
Item (Qty) Order Code
3 x 8 with large insulated clips 1002-646
3 x 10 m with large insulated clips 1002-647
3 x 15 m with large insulated clips 1002-648
Control circuit test lead sets
2 x 3 m control circuit, small insulated clips 6220-822
Screened HV test leads
1 x 3 m, 5 kV screended un-insulated
small clips 6220-835
1 x 15 m, 5 kV screened un-insulated
small clips 6311-080
1 x 3 m, 10 kV screended un-insulated
small clips 6220-834
1 x 10 m, 10 kV screened un-insulated
small clips 6220-861
1 x 15 m, 10 kV screened un-insulated
small clips 6220-833
UK
Archcliffe Road, Dover
CT17 9EN England
T (0) 1 304 502101
F (0) 1 304 207342
UNITED STATES
4271 Bronze Way
Dallas, TX 75237-1019 USA
T 1 800 723 2861
T 1 214 333 3201
F 1 214 331 7399
OTHER TECHNICAL SALES OFFICES
Norristown USA, Sydney AUSTRALIA,
Ontario CANADA, Trappes FRANCE,
Dubai UAE, Mumbai INDIA, Durban
SOUTH AFRICA, Conjure THAILAND,
Tåby SWEDEN, Oberursel GERMANY,
Aargau SWITZERLAND
ISO STATEMENT
Registered to ISO 9001:2008 Cert. no. Q 09250
Registered to ISO 14001-2004 Cert. no. EMS 61597
MIT520-2_MIT1020-2_DS_en_V08
www.megger.com
Megger is a registered trademark
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