• Gossen Metrawatt
  • Camille Bauer


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Item number: M520T

Measuring and test instrument for testing the effectiveness of protective measures at stationary electrical installations after completion, repair or expansion, and for periodic testing (DGUV regulation 3)

PROFITEST INTRO – universal, handy and rugged test instrument for performing all measurements for testing the effectiveness of protective measures at stationary electrical installations as required by IEC 60364-6 (DIN VDE 0100-600) and other country-specific standards, and as specified in the individual sections of DIN EN 61557 (VDE 0413). Measuring category: 300 V CAT IV/ 600 V CAT III.

The PROFITEST INTRO makes your investment decision easy because it’s the ideal test instrument for your routine daily work – day after day – thanks to the scope of functions which is perfectly matched to your requirements, the extremely rugged housing and a low price. Test report generation is quick and easy thanks to optimized operation and the practical memory concept. You save time with every measurement and you’re able to complete more measurements each day. Furthermore, once a system structure has been created it can be used for all PROFITEST instruments – from Intro to Master. As a result, all employees conduct testing in exactly the same way. And with the PROFITEST service guarantee, you can be sure that your test instrument will still be up to date even 10 years down the road.

Product Highlights

  • Measuring and test sequence – easy setup of the system structure / measuring and storage / report generation
  • Storage concept for up to 50,000 data records
  • Testing of all up-to-date AC/DC sensitive RCDs, and many others
  • User safety by means of PE detection when using finger contact

Your advantages

  • Intuitive user prompting with help function which provides support for pending measuring tasks
  • All decisive measuring functions can be quickly selected with the rotary switch.
  • Especially well suited for mobile use, even at construction sites and in industrial environments, thanks to the compact, impact-resistant housing with integrated rubber protector
  • Also suitable for international use thanks to extensive setting options for language etc.


Testing of the effectiveness of protective measures at stationary electrical installations per IEC 60364-6 (DIN VDE 0100-600), EN 50110-1 (DIN VDE 0105-100) and other country-specific standards.
  • Technical characteristics
    • Broad-range measuring device for all alternating and 3-phase electrical systems with voltages from 65 to 500 V and frequencies of 15.4 to 420 Hz
    • Loop and line impedance measurement with DC bias magnetization
    • Measurement of insulation resistance using nominal voltage, with variable or rising test voltage
    • Low-resistance measurement with automatic polarity reversal
    • Testing of residual current devices and special RCCBs (selective S, SRCDs, PRCDs, Schukomat, Sidos, types G/R, AC, A, F, B, B+ and EV)
    • Measurement of earth resistance (loop)

  • Particularities
    • User safety by means of PE detection when connected via finger contact
    • Quick access to measuring and test functions via the rotary switch with operating levels and softkeys
    • Individual measured value memory and memory structure setup
    • Transfer of system structures with the help of ETC software thanks to compatibility with the PROFITEST Master series
    • Data exchange via USB, DDS-CAD and epINSTROM
    • Connection of barcode and RFID readers
    • Intelligent OFFSET management

Product videos



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