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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The accuracy of test results is directly related to the quality of the test signal. Rugged construction provides the accuracy of a laboratory instrument with the ability to withstand dolbe field conditions.

Doble M – Livingston

Unlike other test instruments, the M eliminates the need to balance the bridge, automatically making measurements for you.

If you need more current than mA for large apparatus, the Type C Resonator option extends the range. Doble M Power Factor tester. The M instrument comes with M software to simplify the management of test results. Dble software makes testing easy, fast, and smart.

The M has dobke power to test a wide range of apparatus, making it highly versatile. One stop for your electrical safety equipment needs, cleaning, and electrical testing services. New PurchaseRental. It also measures capacitance, to evaluate physical changes to the apparatus. Dielectric testing for our electrical testing laboratory.


The result is highly accurate and repeatable measurements. Even a small change in a measurement becomes a reliable diagnostic indicator. JM Test Rental options can help you save capital, get the latest technology, and expand your capabilities. The Liquid-Insulation Cell Oil Cellalso supplied with the M, can be used in the field for a quick accuracy check.

The M was engineered from the ground up to overcome the common problems that plague other test instruments. Click the “Get A Quick Quote” button to get started.

Doble M4000 M4100 Power Factor Insulation Analyzer

Automated setup eliminates errors. This produces reliable results and stable readings. 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.

Electrical Safety Onsite Testi It also offers a range of built-in self-diagnostic dobpe.

Built-in test set diagnostics provide information on instrument status. Electrical glove testing is available at JM Test Systems.

Advanced digital technology takes accuracy to new levels. Provides the highest power to better replicate in-service conditions. Get a quick quote: 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.


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. It sets the standard for accuracy, reliable test results, and intelligent diagnostics for customers worldwide.

Records are presented in a format that is easy to read, save, and print.

The internal measurement circuitry is fully digital. Cleaning, dielectric testing, drying, visual inspections, stamping, packing, and documentation is all The M allows you to perform a variety of diagnostic tests: The quality of the power source is not an issue.

Doble M, 4th Gen | Accutech Rentals

Get a Quick Quote. Generates its own clean test signal for the most reliable and repeatable results. The M is the leading instrument for evaluating the condition of high-voltage power apparatus.

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