TENTECH

DT70KV - 70 kVDC insulating gloves tester

felipe — Mon, 07 Jun 2021 18:22:25 +0000

DT70KV - 70 kVDC insulating gloves tester felipe Mon, 06/07/2021 - 18:22

Description

The dielectric tester DT70KV is an instrument specially developed to insulating gloves testing, in accordance with standards ASTM D120, ASTM F496 and IEC 60903 (annex E). It was designed with emphasis on safety, versatility and ease of use. The voltage output is adjustable (according to the glove class), with up to 70 kVDC. Its intuitive interface makes it possible to program the glove class and the maximum leakage current, allowing automatic tests.

Has one LED to indicate the presence of high voltage in the output terminal during a measurement and one bi-color LED to indicate the test result (Pass / Fail).

Meeting the most stringent security requirements, the system is divided into two modules, one for control and the other for high voltage. The high voltage module is equipped with an audible alarm and both modules have emergency stop switch. Through an Android device it’s possible to program all parameters of the hipot, besides remotely controlling the tests, further increasing the security.

Technical specifications

Test voltage

Up to 70,000 V

Test Voltage Resolution

100 V from 10 kV up to 70 kV
10 V up to 9.99 kV.

Test voltage accuracy

Up to 50 kV: ± (2 % of nominal value ± 2 digits) with 500 μA load
Above 50 kV: ± 1 kV

Polarity

Negative voltage, ground positive.

Leakage current

Max. 500 μA.

Leakage current resolution

1 µA.

Leakage current accuracy

± (2% of nominal value ± 2 digits).

Display

Alphanumerical LCD display, 4 lines / 20 characters (Big Number).

Ripple

< 2%.

Measuring modes

• Automatically configured tests, according to standards ASTM D120, ASTM F496 and IEC 60903 (annex E)
• Periodic tests for gloves class: 00, 0, 1, 2, 3 and 4
• “Pass / Fail” test
• Timed tests (within the limits of each standard)

Safety

Emergency stop switches, Sparks auto-detection, Visual indicators (LEDs) and Audible indicator.

Chronometer

Up to 3 min., indication in mm:ss.

Built-in memory

Memory for storing up to 107 tests with 3 minutes duration each.

Protocol

Modbus.

USB

For configuration, control and download the stored values.

Bluetooth

For configuration, control and download the stored values.

T-Logger software (Desktop)

For remote control, allowing to configure, run tests and generate reports.

Tentech app (Android device)

For remote control, allowing to configure, run tests and generate reports.

Environmental protection

IP65 (with closed lid).

Safety

In accordance with IEC 61010-1.

Power supply

Mains: 200-240 V, 50/60 Hz, 50 VA.

Operating temperature

23 °F to 122 °F (-5 °C to 50 °C).

Storage temperature

-13 °F to 158 °F (-25 °C to 70 °C).

Humidity range

95% RH (non condensing).

Equipment weight

Control module: approx. 16.76 lb (7.6 kg).
High voltage module: approx. 21.16 lb (9.6 kg).

Dimensions

Control module: 17.5" x 14.2" x 7.5" (450 x 360 x 190 mm).
High voltage module: 17.5" x 14.2" x 7.5" (450 x 360 x 190 mm).

MD15KVR - 15 kV digital insulation tester

admin — Tue, 24 Oct 2017 15:33:53 +0000

MD15KVR - 15 kV digital insulation tester admin Tue, 10/24/2017 - 15:33

Description

The digital insulation tester model MD15KVR is TENTECH’s cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A software allows for further analysis of tests results, including features such as graphical representation and automatic report generation. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 15 TΩ, with 4 preselected test voltages, 500 V - 5 kV - 10 kV - 15 kV. Other test voltages may be selected in steps of 25 V or 500 V.

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.

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.

The MD15KVR 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.

Specifications

Test voltage

500 V, 5 kV, 10 kV, 15 kV directly, one button selectable.
500 V to 15 kV in 25 V or 500 V steps. DC, negative.

Maximum resistance reading

15 TΩ @ 10 kV up to 15 kV.
10 TΩ @ 5 kV up to 9.99 kV.
5 TΩ @ 1 kV up to 4.99 kV.
1 TΩ @ 525 V up to 999 V.
500 GΩ @ 500 V.

DC voltmeter

15 V up to 1,000 Vdc.
Accuracy: ±(5 % of reading + 3 digits).

AC voltmeter

15 V up to 1,000 Vrms.
Accuracy: ±(5 % of reading + 3 digits).

Overvoltage category

CAT III - 600 V.

Leakage current measurement

1 nA up to 1,500 μA
Accuracy: ±(10 % of reading + 3 digits).

Capacitance measurement

50 nF up to 10 µF @ 500 V.
50 nF up to 5 µF @ 1,000 V.
30 nF up to 2 µF @ 2,500 V.
30 nF up to 1 µF @ 5,000 V.
30 nF up to 680 nF @ 10,000 V.
30 nF up to 680 nF @ 15,000 V.
Accuracy: ±10 % of reading ± 3 digits.

Short circuit current

Max. 2 mA.

Test voltage accuracy

± 3 % of nominal test voltages on 10 GΩ.

Insulation tester basic accuracy

± 5 % of reading 1 MΩ to 1 TΩ @ 15 kV.
± 20 % of reading 1 TΩ to 15 TΩ @ 15 kV.
(for lower test voltages, the upper limit will be reduced proportionally).
± 20 % of reading ± 5 digits 10 kΩ to 100 kΩ.
± 10 % of reading ± 5 digits 100 kΩ to 1 MΩ.

Advanced features

• Dielectric discharge
• Ramp test
• Automated polarization index calculation
• Automated dielectric absorption ratio calculation
• Programmable pass-fail test
• Step voltage test
• 16,000 readings memory
• Switchable filter to remove external noise interference

Built-in printer

Prints elapsed time, actual voltage and resistance measured each 15 seconds.

Interface

USB.

Built-in chronometer

Shows elapsed time in mm:ss format. Count starts automatically for each measurement.

T-Logger Software

Friendly, easy to use software. Tests are represented in graphic and tabular views. With automatic report generator, including the operator's commentaries.

Environmental protection

IP65 (with closed lid).

Safety Class

In accordance with IEC 61010-1.

E.M.C.

In accordance with IEC 61326-1.

Electromagnetic irradiation immunity

In accordance with IEC 61000-4-3.

Electrostatic immunity

In accordance with IEC 61000-4-2.

Power supply

Internal rechargeable (LiFePO4 12 V - 6,000 mAh).

Battery charger

12 V - 2 A.

Operating temperature range

14 °F to 122 °F (-10 °C to 50 °C).

Storage temperature range

-13 °F to 158 °F (-25 °C to 70 °C).

Humidity range

95% UR (non condensing).

Equipment weight

Approx. 13.88 lb (6.3 kg).

Dimension

17.5" x 14.2" x 7.5" (450 x 360 x 190 mm).

TM25t - High frequency earth ground tester

admin — Thu, 20 Jul 2023 19:26:20 +0000

TM25t - High frequency earth ground tester admin Thu, 07/20/2023 - 19:26

Description

Testing of the power transmission towers grounding (G) quality poses a serious problem as they are all electrically interconnected by means of Ground Wires which act as lightning rods, protecting the lines from atmospheric discharges. Due to the existence of this connection, any attempt to measure a tower grounding (G) resistance using a conventional earth meter leads to wrong results as what is really being measured is all the shunt towers grounding (G) resistance (or, more precisely, its impedance at low frequency).

To make this kind of test feasible, which is of vital importance to ensure the transmission of the electrical power without interruptions, TENTECH TM25t grounding resistance meter for high frequency has been developed. This is the appropriate tool for a fast, safe and reliable grounding resistance measurement in each tower of a working line transmission, without disconnecting the ground wire.

Its operation is based on the use of a high-frequency measurement current (25 kHz), for which ground wire inductive impedance - taking into account a typical length span - is reasonably high, making it possible to reduce the effect of the adjacent towers under measurement. The equipment only measures the ground resistance of the surveyed tower, including its base. The extensive G systems, such as meshes, buried wires, metal pipes, etc, are measured only considering the closest section to the connection point, so that the measured value represents the performance against a pulse signal similar to an atmospheric discharge. Thus, values that better represent the system capacity to ground lightning currents than the ones obtained with low frequency conventional equipments, even when disconnecting the ground wire, are obtained. TM25t is a strong equipment, easy to carry, resistant to the hard weather and geographical features of the tropical and high-mountain regions, that is why it is described as an excellent product for field works under the most severe environmental conditions.

Technical specifications

Measurement ranges

0 - 300 Ω

Operation frequency

25,000 Hz

Test current

20 mA automatic

Inductive component compensation

• Through bank of capacitors integrated to the equipment
• Maximum capacity: 4.2 μF
• Resolution: 10 nF

Measurement accuracy

± 2.5 % of reading ± 1 digit

Max. earth resistance of auxiliary rods

2,000 Ω (current rod)
2,000 Ω (voltage rod)

Display

Alphanumerical LCD display, 4 lines / 20 characters (Big Number)

Printer

Built-in thermal printer

Built-in memory

It allows for the storage of 2,000 tests readings in its internal NVRAM memory

Protocol

Modbus

USB

For configuration, control and download the stored values

Bluetooth

For configuration, control and download the stored values

Overvoltage protection

CAT IV - 300 V

Safety

IEC 61010-1

Desktop Software (PC/Notebook)

TLogger software: for remote control, allowing to configure, run tests and generate reports

Android App (Smartphone/Tablet)

TENTECH Remote Control app: for remote control, allowing to configure, run tests and generate reports

IP rating

IP65 (with closed lid)

Operating temperature

14 °F to 122 °F (-10 °C to 50 °C)

Storage temperature

-13 °F to 158 °F (-25 °C to 70 °C)

Humidity

95 % RH (non condensing)

Power supply

Internal rechargeable battery (LFP 12 V 6000 mA)

Battery charger

12 V - 2 A

Equipment weight

Approx. 10.80 lb (4.9 kg)

Dimensions

13.6" x 10.7" x 6.3" (345 x 272 x 159 mm)

MTD20KWR - Digital earth ground tester

felipe — Mon, 24 Apr 2023 18:49:50 +0000

MTD20KWR - Digital earth ground tester felipe Mon, 04/24/2023 - 18:49

Description

The MTD20KWR digital earth tester allows for the measurement of Earth Resistances and Soil Specific Resistivity, and also the spurious voltages caused by parasitic voltages present in the soil.

This equipment is suitable for fast and easy measurement of the grounding resistance in house and industrial buildings, hospital installations, lightning rods, antennas, substations, etc. Soil resistivity measurement allows for soil stratification in order to optimize the most complex grounding systems engineering.

Its state-of-the-art system of active and passive filters provides it with high immunity to electric interferences, making it possible to obtain reliable measurements even in the presence of spurious voltages, such as the ones that can be found in some urban areas and near primary substations.

A 1,470 Hz internal generator injects alternated current on the soil through an auxiliary rod. The voltage generated over the earth resistance is measured by the apparatus, and the resistance value is evaluated. The test current is automatically regulated.

It has abnormalities indications on the display which advises the operator when the generated current is not enough to carry out reliable measurements.

Because of its wide range of measurement (from 0.01 Ω up to 20 kΩ), this equipment allows for reliable testing in all kinds of soils, including those that offer very high resistivity.

This earth tester is supplied with a rechargeable internal battery. The smart charger is microprocessor-controlled, and can be powered from a 12 V car battery (or a similar one).

It has a sturdy, easy and safe to carry cabinet, with IP65 protection level (closed lid). It is suitable to work under adverse geographical and environmental conditions, with extreme temperatures in cold or tropical regions and in high mountain areas, showing a reliable performance in the field.

Technical specifications

Application

Measurement of grounding resistances (3 terminals), soil resistivity (4 terminals) and spurious voltages present in the soil.

Resistance measurement method

The equipment injects an electronically stabilised current in the soil, and measures, with high precision, the voltage developed in the soil by means of that current flowing through grounding diffusion resistances. Display shows the Resistance value.

Operation as a voltmeter

In the voltmeter function, the equipment operates as a AC conventional voltmeter, making it possible to check the presence and to measure voltages generated by parasitic currents.

Measurement ranges

Resistance: 0 - 20 kΩ.
Voltage: 0 - 200 V~.

Accuracy

Resistance and Resistivity measurements:
± 2% of the measured value ± 2 digits

Voltage measurement:
± 2% of the measured value ± 2 digits

Reading resolution

0.01 Ω in the resistance measurement;
0.1 V in the voltage measurement.

Output power and current

The output power is less than 0.5 W, and the output current is limited to less than 10 mA (max.).

Power supply

By means of an internal rechargeable NiMH battery, from a 12 V external battery.

Battery charger

A smart, microprocessor controlled, circuit adjusts the battery charge to the optimised parameters in order to ensure the maximum service life. It is supplied by means of an external AC adapter (provided with the equipment) or from a 12 V car battery.

Operation temperature

14 °F to 122 °F (-10 °C to 50 °C).

Storage temperature

-13 °F to 158 °F (-25 °C to 70 °C).

Humidity

95 % RH (without condensation).

Equipment weight

Approx. 3.3 lb (1.5 kg).

Dimension

8.70" x 7.44" x 3.90" (221 x 189 x 99 mm).

MPK105R - 100 A high current micro-ohmmeter

felipe — Mon, 07 Jun 2021 18:11:30 +0000

MPK105R - 100 A high current micro-ohmmeter felipe Mon, 06/07/2021 - 18:11

Description

The MPK105R high-current micro-ohmmeter is a portable, microprocessor-controlled instrument. Has optimized filters and protections for measurements in electrical substations. Can be used to accurately measure very low contact resistances of high voltage circuit-breakers and switches, busbars, etc., with test currents from 5 A up to 100 A. It employs the 4 terminals-method (U/I measuring principle) to avoid errors caused by test leads and their contact resistances.

Measurement accuracy is guaranteed by a state-of-the-arts signal amplification system, offset-free and of high long-term stability. Resistances readings are shown in the alphanumeric display with up to 4½ digits-resolution. It allows to measure resistances up to 300 mΩ, and the best resolution is 0.1 µΩ.

The high-current generation system is based on modern technology that allows to significantly decrease both its weight (approx. 11 kg) and size. The cabinet is made of plastic material highly resistant to impacts and to environmental challenges. Internal thermal sensors in all sensitive components avoid any damage caused to the instrument due to overheating.

This is a strong but lightweight equipment, and may be easily carried by one person. It is water-resistant and can be used under severe weather conditions (IP65 with closed lid) offering an excellent performance working both in the laboratory and out in the field.

Technical specifications

Test current

From 5 A up to 100 A (True DC)
The test current can be adjusted in steps of 0.2 A from 5 A to 20 A and steps of 1 A from 20 A to 100 A.

Resistance ranges

0.1 μΩ up to 2 mΩ (0.1 μΩ resolution)
2 mΩ up to 300 mΩ (10 μΩ resolution).

Measurement principle

Four-terminal, U/I.

Protections

Protections against overheating, overcurrent and short-circuit.

Programmable test time

Allows to setup the test duration from 15 seconds up to 120 seconds for current test from 5 A up to 100 A

Basic accuracy

± 1 % of reading from 50 μΩ to 300 mΩ.

Auxiliary clamp measurement range

0.1 ADC to 60 ADC.

Auxiliary clamp reading accuracy

1 % + 3 digits.

Advanced features

Digital direct reading of very low resistances in the alphanumerical display, with up to 4½ digits. Very fast and accurate measurements.

Communication protocol

Modbus.

Built-in memory

Memory for storing up to 4000 readings organized by records.

Serial data output

USB, for configuration, control and download the stored values.

Bluetooth

For configuration and control.

Environmental protection

IP65 (with closed lid).

Safety

In accordance with IEC 61010-1.

Power supply

Mains: 100-240 V~.

Operating temperature

14 °F to 122 °F (-10 °C to 50 °C).

Storage temperature

-13 °F to 158 °F (-25 °C to 70 °C).

Humidity range

95% RH (non condensing).

Equipment weight

approx. 24.25 lb (11 kg).

Dimensions

19.76" x 15.51" x 7.48" (502 x 394 x 190 mm).

MPK257 - 10 A low current micro-ohmmeter

felipe — Sat, 21 Apr 2018 15:05:08 +0000

MPK257 - 10 A low current micro-ohmmeter felipe Sat, 04/21/2018 - 15:05

Description

The MPK-257 digital very low resistance ohmmeter is a portable, microprocessor-controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1mA up to 10 A.

It uses the Kelvin-type, four-terminals measurement principle, thus eliminating errors caused by lead and contact resistances.

Resistance readings are shown in the alphanumeric display with up to a 4½ digit-resolution. It allows to measure resistances of up to 2,000 Ω, with a resolution down to 0.1 µΩ.

Measurements accuracy is guaranteed by the state-of-the-art system for signal amplification, offset-free and with long-term stability.The equipment has a USB interface that allows to download the measured values to a computer for their later analysis.

The open circuit output voltage is of up to 10 V, depending on the selected test current, reducing the stabilization time for the test current when highly inductive elements are measured.

The measurement circuit has an effective protection against voltage peaks originated by those inductances.

Operation is very simple: Just connect the leads, switch-on the equipment, select the test current and press the start button. After a few seconds (depending on inductance of the element), direct reading appears on the display with the measure unit indication (Ω, mΩ or µΩ). If it is necessary, the display will show messages to help the operator (Low battery, Over range, etc).

The equipment is housed in a rugged plastic case with a hinged lid and carrying handle. It is a portable, strong, impact resistant and lightweight equipment, suitable to be used in field, under severe weather conditions. It supplies very reliable and accurate measurements both in laboratory and out in the field.

Technical specifications

Test currents

1 mA - 10 mA - 100 mA - 1 A - 5 A - 10 A.
Each current may be continuously adjustable from 0 to 100 %.

Resistance ranges

0-200 mΩ @ 10 A.
0-1000 mΩ @ 5 A.
0-200 mΩ @ 1 A.
0-2000 mΩ @ 100 mA.
0-20 Ω @ 10 mA.
0-2000 Ω @ 1 mA.

Resolution

0.1 μΩ @ 10 A.

Output voltage

Up to 10 V_DC (open circuit) @ 1 A.

Measurement principle

Four-terminal, Kelvin-type.

Basic accuracy

±(0.10% of reading + 3 ULSD*).
*Units of the Least Significant Digit

Advanced features

Digital direct reading of very low resistances in the alphanumerical display, with up to 4½ digits Very fast and accurate measurements.

Serial data output

USB.

Environmental protection

IP65 (with closed lid).

Safety class

Meets the requirements of IEC 61010-1.

Power supply

Rechargeable LFP battery 12 V, 6000 mAh or 100 - 240 V~ mains supply.

Built-in battery charger

For 100 - 240 V~ mains supply or auxiliary 12 V supply input.

Operating temperature range

14 °F to 122 °F (-10 °C to 50 °C).

Storage temperature range

-13 °F to 158 °F (-25 °C to 70 °C).

Humidity range

95 % RH (non condensing).

Equipment weight

Approx. 14.33 lb (6.5 kg).

Dimensions

14.88" x 12.13" x 6.89" (378 x 308 x 175 mm).

MD1000R - 1 kV handheld insulation tester

admin — Sun, 29 Oct 2017 10:24:55 +0000

MD1000R - 1 kV handheld insulation tester admin Sun, 10/29/2017 - 10:24

Description

The TENTECH MD1000R is a smart, microprocessor controlled, 1 kV insulation tester for up to 200 GΩ resistance measuring with 250 V, 500 V and 1000 V test voltage. It is a portable, hand-held, battery powered equipment. Due to its measurement principle (actual voltage and current readings) it is a "true megohmmeter" and so the accuracy of resistance measurement is not affected by any test voltage error.

Operation is very simple and user-friendly: just connect the leads, switch-on the equipment, select the test voltage and press the Test button. Then the equipment automatically selects the most suitable range and shows the measured value in the 3½ digits display.

In order to guarantee the operator safety there are no accessible metallic parts. Output terminals are placed in the furthest and most protected area of the equipment. A light indicator shows high-voltage presence and is switched-off when the capacities (both internal and external) are discharged up to reaching a safe value.

Furthermore, it offers useful additional features: 200 mA continuity range, low resistance measurement, AC/DC voltage measurement up to 600 V, selectable timer, hold memory, and selectable resistance limits for pass-fail testing, with acoustic indication.

Surface leakage paths may affect the measurement of high value insulation resistance. The use of the GUARD terminal permits to remove the effect of this current, substantially improving the test result.

Due to its reduced dimensions and weight, power supply autonomy and mechanical resistance, this equipment is suitable for fieldwork.

Specifications

Nominal test voltages

250 V - 500 V - 1000 V.
Negative, DC voltage.

Resistance measurement range

From 10 kΩ up to 200 GΩ.

Short circuit current

1.5 ± 0.3 mA.

Test voltage accuracy

-0 / +15 % for resistances between 10 MΩ and open circuit.

Basic accuracy

R ≤ 50 GΩ: ± 5 % of reading ± 2 digits.
R > 50 GΩ: ± 10 % of reading ± 2 digits.

Low resistance measurement and continuity tester

Range: 0.05 Ω to 150 Ω.
Accuracy: ± 5 % of reading ± 2 digits.
Test current: up to 200 mA.
Continuity indicator: Activates at R < 5 Ω ± 0.5 Ω.

Built-in timer

5 - 10 - 15 - 30 seconds.
1 - 2 - 3 - 5 - 10 - 15 minutes.

Pass / fail test

1 - 2 - 5 - 10 - 20 - 50 - 100 - 200 - 500 MΩ.
1 - 2 - 5 - 10 - 20 - 50 - 100 GΩ.

Voltmeter True RMS.

Range: 0 - 600 V_AC/DC.
Accuracy: ± 3 % of reading ± 2 digits.

Additional features

• Automatic polarization index.
• Guard terminal.
• Hold function.

Overvoltage protection

600 V.

Safety class

In accordance with IEC 61010-1.

E.M.C.

In accordance with IEC 61326-1.

Electrostatic immunity

In accordance with IEC 61000-4-2.

Electromagnetic irradiation immunity

In accordance with IEC 61000-4-3.

Power supply

Built-in, NiMH battery.
Autonomy: 1000 tests of 5 seconds with an interval of 25 seconds according IEC 61557-2. During the measurement is used a test resistance which the value is UN x (1000 Ω / V).

Battery charger

Built-in, with external power supply of 12 V - 2 A.

Operation temperature

14 °F to 122 °F (-10 °C to 50 °C).

Storage temperature

14 °F to 158 °F (-10 °C to 70 °C).

Humidity

95 % RH (without condensation).

Equipment weight

Approx. 1.1 lb (0.5 kg).

Dimensions

4.01" x 7.68" x 1.81" (102 x 195 x 46 mm).

MD5060x - 5 kV digital insulation tester

admin — Sat, 28 Oct 2017 14:16:20 +0000

MD5060x - 5 kV digital insulation tester admin Sat, 10/28/2017 - 14:16

Description

The TENTECH MD5060x is a smart, microprocessor-controlled, 5 kV insulation tester. Besides the conventional measurement of insulation resistances up to 5 TΩ, its features allow to automatically measure both the polarization index and dielectric absorption index, thus significantly simplifying testing of transformers.

This insulation tester is a portable, battery-powered equipment. Test voltage may be chosen from 500 V up to 5 kV in 100 V increments. Due to its measurement principle (actual voltage and current readings) the accuracy of resistance measurement is not affected by any test voltage error. Nevertheless, the high-voltage generator is electronically stabilized with a better than 2 % accuracy in open-circuit condition and for any normal operation battery voltage.

The built-in chronometer automatically counts the elapsed time since the start of measurement. 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 4000 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.

Some other advanced features are useful to run the most sophisticated insulation analysis. Step voltage test, configurable pass / fail test and timed measurements are automatically performed, with a very simple and user-friendly setup. The measurement parameters are stored in the non-volatile memory for an easy configuration.

In order to guarantee the operator safety, the cabinet is made of a high breakdown strength plastic. High security output terminals are placed in the furthest and most protected area of the equipment. A light indicator shows high-voltage presence and is switched-off when the capacities (both internal and external) are discharged up to reaching a safe value.

The MD5060x is powered by a rechargeable LFP battery and has an automatic charger that may be connected to 100 - 240 V mains supply (AC Adapter). 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.

Specifications

Test voltages

500, 1000, 2500, 5000 V directly, one button selectable.
500 V to 5 kV in 100 V increments. DC, negative.

Maximum resistance reading

5 TΩ @ 5 kV.

Short circuit current

1.5 ± 0.5 mA.

Test voltages accuracy

± 3 % of nominal test voltages on R ≥ 10 GΩ.

Insulation tester basic accuracy

± 5 % of reading from 1 MΩ up to 1 TΩ.
± 20 % of reading from 1 TΩ up to 5 TΩ.

Advanced features

Automated polarization index calculation.
Automated dielectric absorption ratio calculation.
Step voltage test.
Programmable pass / fail test.

Built-in printer

Prints elapsed time, actual voltage and resistance measured each 15 seconds.

Built-in memory

Stores up to 4000 measured values.

Interface

USB.

Built-in chronometer

Shows elapsed time in mm:ss format. Count starts automatically for each measurement.

Real time clock and calendar

Allows a reliable identification for each test.

T-Logger software

Friendly, easy to use software. Tests are represented in graphical and tabular views. With automatic report generator, including the operator's commentaries.

Environmental protection

IP54 (with closed lid).

Safety class

In accordance with IEC 61010-1.

E.M.C.

In accordance with IEC 61326-1.

Electrostatic immunity

In accordance with IEC 61000-4-2.

Electromagnetic irradiation immunity

In accordance with IEC 61000-4-3.

Power supply

Internal rechargeable LFP 12 V - 3000 mAh battery.

Battery charger

12 V - 2 A.

Operating temperature range

14 °F to 122 °F (-10 °C to 50 °C).

Storage temperature range

-13 °F to 158 °F (-25 °C to 70 °C).

Humidity range

95 % RH (non condensing).

Equipment weight

Approx. 7.94 lb (3.6 kg).

Dimensions

10.78" x 9.84" x 4.88" (274 x 250 x 124 mm).