Metrel MI-3155 InstalTest IT-XD

The Metrel MI 3155 Instaltest IT-XD is the flagship of Metrel’s most advanced line of multi-functional measuring instruments and is designed specifically for testing in the industry. What differentiates this instrument from the rest is its ergonomic design and an intuitive user interface, encompassing a memory organizer and fully programmable AUTO SEQUENCEs, managed through a large color touch screen display. It is fully compliant with functionality standards (e.g. IEC/EN 61557) and other reference standards for testing (e.g. IEC/EN/HD 60364-4-41,…) as is required for any instrument that performs TRMS current measurements, RCD tests, line and loop impedance tests with 3 (and 4) wires and earth resistance measurements. Besides those, the instrument supports a wide range of tests and measuring functions, including on-line voltage monitoring, phase sequence testing, varistor testing, PI/DAR calculation, luminance measurement, discharge time testing, ISFL measurements, IMD tests as well as functional and visual inspections. The IT-XD is pre-set with AS/NZS3017 limits for pass/fail indication on tests.

Measuring functions:

• Live Transformer’s Impedance Measurement with Four Wire Test; Hi-precision
• Short Circuit Current evaluation with Calculated Hot factor
• 3-wire test of PE (RPE function) without extension lead conductor
• Autotest insulation function between L-N, N-PE and L-PE (R ISO ALL function)
• 4 wire continuity test
• Insulation resistance with DC voltage from 50 V to 2500 V and PI, DAR calculation
• Varistor test
• Continuity of PE conductors with 200 mA DC test current with polarity change
• Continuity of PE conductors with 7 mA test current without RCD tripping
• 2-wire and 3-wire loop impedance (L-PE) measurement with Trip Lock RCD function
• Touch voltage / Contact voltage measurement with external P/S probe.
• 2-wire and 3-wire line impedance (L-L, L-N) measurement
• 1-phase / 3-phase TRMS voltage and frequency measurements
• Line, loop and RCD measurements at frequency range 16 … 400 Hz
• Phase sequence
• Power and THD measurement (up to the 12th harmonic)
• RCD testing (general and selective, type AC, A, F, B, B+, MI RCD, EV RCD, PRCD, PRCD-K, PRCD-S)
• Earth resistance (3-wire and 2-clamps method)
• Specific earth resistance with Ro-adapter (option)
• TRMS leakage and load currents (option)
• First fault leakage current (ISFL)
• Testing of Insulation Monitoring Devices (IMDs)
• Machine mode support with time discharge
• Illumination (option)
• High resolution Loop impedance (mΩ) (option)
• EVSE (Electrical Vehicle Supply Equipment) support (option)
• Determining location of cables (option)
• QR and/or barcode scanner support (option)

Features:

• High resolution colour touch screen, 4.3” TFT
• Functional inspections.
• Visual inspections.
• Custom inspections (visual and functional) which may be incorporated into AUTO SEQUENCEs.
• EVSE AUTO SEQUENCEs and function inspections.
• Machine functional and visual inspections.
• Built-in help screens for referencing on site.
• Built-in fuse tables for automatic evaluation of the line / loop impedance result.
• Monitoring of all 3 voltages in real-time.
• Automatic polarity reversal on continuity test.
• Automated RCD testing procedure (RCD AUTO).
• Barcode scanning of RCD for test/retest for faster testing
• Automated Impedance testing procedure (Z AUTO).
• Measurement filtering according to the selected area group.
• Built-in charger and rechargeable batteries as standard accessory.
• BT communication with PC, Android tablets and smart phones via built-in BT.
• PC SW Metrel ES Manager (structure and report creation, data upload/download).
• Optional aMESM Android APP (structure and report creation, data upload/download).
• Programmable AUTO SEQUENCEs .
• Predefined profile dependent
• AUTO SEQUENCEs.

Predefined Automatic tests:

• Auto TT (U, Zln, Zs, Uc)
• Auto TN/RCD (U, Zln, Zs, Rpe)
• Auto TN (U, Zln, Zlpe, Rpe)
• Auto IT (U, Zln, Isc, Isfl, IMD)