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Doble M Rent and purchase options available at JM Test. The M is the leading instrument for evaluating the condition of high-voltage power. Insulation systems associated with many types of high-voltage power apparatus and devices often consist of a mix of non-homogeneous component parts. The Doble M evaluates the integrity of high-voltage substation apparatus by measuring the power factor/tangent delta along with capacitance to evaluate.

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Doble M – Livingston

M software makes testing easy, fast, and smart. This produces reliable results and stable readings. Generates its own clean test signal for the most reliable and repeatable results. One stop for your electrical safety equipment needs, cleaning, and electrical testing services.

The M instrument comes with M software to dobke the management of test results.

With a maximum output of mA at 10 kV, the M offers high charging current, allowing you to run single-phase exciting current tests at higher voltages, increasing the turn-to-turn stress. Get a quick quote: The Liquid-Insulation Cell Oil Cellalso supplied with the M, can be used in the field for a quick accuracy check. Advanced digital technology takes accuracy doblle new levels. Cleaning, dielectric testing, drying, visual inspections, stamping, packing, and documentation is all It also measures capacitance, to evaluate physical changes to the apparatus.


Provides the highest power to better replicate in-service conditions.

It sets the dobld for accuracy, reliable test results, and intelligent diagnostics for customers worldwide. Rugged construction provides the accuracy of a laboratory instrument with the ability to withstand harsh field conditions.

Doble M Power Factor tester. New PurchaseRental. JM Test Rental options can help you save capital, get the latest technology, and expand your capabilities.

Electrical Safety Onsite Testi Automated setup eliminates errors. If you need more current than mA for large apparatus, the Type C Resonator option extends the range. Unlike other test ddoble, the M eliminates the need to balance the bridge, automatically making measurements for you.

Dielectric testing for our electrical testing laboratory. Daily, Weekly and Monthly rates are available on select items. Get a Quick Quote. The M allows you to perform a variety of diagnostic tests: Records are presented in a format that is easy to read, save, and print.

doblr The result is highly accurate and repeatable measurements. The M was engineered from the ground up to overcome the common problems that plague other test instruments.

Doble M4100 Insulation Analyzer

It also offers a range of built-in self-diagnostic tools. The internal measurement circuitry is fully digital. Electrical glove testing is available at JM Test Systems.


The accuracy of test results is directly related to the quality of the test signal. We can also help with these: Click the “Get A Quick Quote” button to get started. The M also uses a patented technique called Line Frequency Modulation, in which measurements are made at a frequency above and below the system frequency, to eliminate the effect of electrostatic interference. While most test instruments use available power lines or portable generators to generate the output test signal, the M uses an internal waveform generator to create its own precise sine wave.

The M is the leading instrument for evaluating the condition of high-voltage power apparatus. Doblf M has the power to test a wide range of apparatus, making it highly versatile.

Even a small change in a measurement becomes a reliable diagnostic indicator. Built-in test set diagnostics provide information on instrument status. The quality of the power source is not an issue.