MD5KVR
Introduction to the MD5KVR:
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The digital insulation tester model MD5KVR is TENTECH’s cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 5 TΩ, with 4 preselected test voltages, 500 V - 1 kV - 2.5 kV - 5 kV. Other test voltages may be selected in steps of 25 V or 500 V.
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A state-of-the-art microprocessor controls the equipment operation and enables the incorporation of advanced features which make measurements easier: auto-range selection, AC/DC voltmeter, automatic measurement of absorption index, polarization index, leakage current and capacitance, timer enabling programming of test duration, configurable pass-fail test, ramp test, step voltage test, dielectric discharge, built-in printer, real time clock and calendar.
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Measured values are transmitted through the USB interface and are printed in the built-in printer as a registration of the performed test. Furthermore, the measured values are stored in a non-volatile internal memory. Up to 16,000 measured values may be stored to be transferred afterward to a computer running the T-Logger program. This software allows a further analysis of the test results, including a graphical representation and automatic report generation. The real time clock and calendar, and the sequential test number, facilitates the identification of each test, and the organization of a predictive maintenance system by trend analysis.
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The MD5KVR is powered by a rechargeable LFP battery. The cabinet is strong and lightweight, easy to carry, impact-resistant and suitable to be used under severe weather conditions. Thus the megohmmeter supplies very reliable and accurate measurements both in laboratory and out in the field.
The MD5KVR
Technical Specifications
Test voltage
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500 V, 1 kV, 2.5 kV, 5 kV directly, one button selectable
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50 V to 5 kV in 25 V or 500 V steps
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DC, negative
Maximum resistance reading
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5 TΩ @ 5 kV
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250 GΩ @ 250 V
DC voltmeter
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15 V up to 1,000 Vdc
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Accuracy: ± (5 % of reading + 3 digits)
AC voltmeter
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15 V up to 1,000 Vrms
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Accuracy: ± (5 % of reading + 3 digits)
Overvoltage category
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CAT III - 600 V
Leakage current measurement
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1 nA up to 3,000 μA
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Accuracy: ± (10 % of reading + 3 digits)
Capacitance measurement
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50 nF up to 10 µF @ 500 V
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50 nF up to 5 µF @ 1,000 V
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30 nF up to 2 µF @ 2,500 V
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30 nF up to 1 µF @ 5,000 V
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Accuracy: ±10% of reading ± 3 digits
Short circuit current
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Max. 3 mA
Test voltage accuracy
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± 3 % of nominal test voltages on 10 GΩ
Insulation tester basic accuracy
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± 5% of reading from 1 MΩ to 1 TΩ @ 5 kV
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± 20% of reading from 1 TΩ to 5 TΩ @ 5 kV
(for lower test voltages, the upper limit will be reduced proportionally) -
± 20% of reading ± 5 digits from 10 kΩ to 100 kΩ
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± 10% of reading ± 5 digits from 100 kΩ to 1 MΩ
Advanced features
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Dielectric discharge
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Ramp test
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Automated polarization index calculation
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Automated dielectric absorption ratio calculation
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Programmable pass-fail test
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Step voltage test
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16,000 readings memory
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Switchable filter to remove external noise interference
Built-in printer
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Prints elapsed time, actual voltage, and resistance measured every 15 seconds
Interface
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USB
Built-in chronometer
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Shows elapsed time in mm:ss format
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Count starts automatically for each measurement
T-Logger Software
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Friendly, easy-to-use software
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Tests are represented in graphic and tabular views
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Includes automatic report generator with operator comments
Environmental protection
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IP65 (with closed lid)
Safety Class
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In accordance with IEC 61010-1
E.M.C.
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In accordance with IEC 61326-1
Electromagnetic irradiation immunity
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In accordance with IEC 61000-4-3
Electrostatic immunity
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In accordance with IEC 61000-4-2
Power supply
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Internal rechargeable (LiFePO4 12 V - 6,000 mAh)
Battery charger
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12 V - 2 A
Operating temperature range
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14 °F to 122 °F (-10 °C to 50 °C)
Storage temperature range
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-13 °F to 158 °F (-25 °C to 70 °C)
Humidity range
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95% RH (non-condensing)
Equipment weight
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Approx. 9.48 lb (4.3 kg)
Dimension
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13.6" x 10.7" x 6.3" (345 x 272 x 159 mm)
Features
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Insulation resistances up to 5 TΩ
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Remote control through an Android app
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Automated tests: absorption index, polarization index, capacitance, leakage current
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Step voltage test
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Dielectric discharge test
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Ramp test
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AC/DC voltmeter
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Real time clock and calendar
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Built-in printer
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16,000 readings memory
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USB interface
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Software for data management
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Rechargeable LFP battery
Included accessories
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2 Measuring test leads.
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1 GUARD test lead.
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1 AC Adapter.
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1 T-Logger software (CD-ROM).
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1 User guide.
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1 Protective bag.
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1 USB cable.
Desktop software
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Equipment's internal memory can be accessed by a desktop software that allows to download all memory data. It also can be used to make analysis of the test results and automatic report generation. (Software included with purchase)
