Kilovoltmeter Instrument for AC & DC – DMI 552/553

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HAEFELY / Tettex

A kilovoltmeter is an indispensable instrument for accurately measuring voltage and current in high voltage applications. High voltage measurements are done by connecting a specialized voltmeter to the secondary unit of a voltage divider or to a current to voltage transducer, such as a shunt.

Haefely has now introduced two new and modern solutions – the DMI 552 laboratory-optimized version or DMI 553 portable, battery-operated version. The DMI 552 / 553 have been developed to measure, record, and visualize events during dielectric and breakdown tests in high voltage applications according to IEC 61083-3:2020.

Measured values are shown as large digits on the computer screen using the Haefely CaMS software. In addition, for pass/fail criteria during dielectric tests, Peak by √2 voltage is recorded and last value before breakdown is shown. Graphical indications as scope function, FFT, datalogger or flash detection are included. To facilitate easy comprehension, voltage divider ratio or shunt conversion factor (A/V) can be incorporated in the calculation to display parameters directly in kV or A. Fiber optic connection guarantees galvanic isolation between the operator and high voltage test lab, increasing safety.

The DMI 552 and 553 can generate reports based on templates, which can be printed or saved as a PDF. Snapshots of the display or charts can be easily included in the reports.

Brochure:  

DMI 552 & DMI 553

Datasheets:

Lab-Optimized DMI 552
Portable DMI 553

DMI 552 / 553 Kilovoltmeter Instrument Features

Designed to measure voltage and current in high voltage applications

Measures AC voltage and currents as RMS, Peak, and Peak/√2, among others

Measures DC voltage and currents as Mean, Peak, and Ripple

Flash detection with voltage indication

Real time scope and frequency analysis FFT

Additional AC/DC input channel (optional)

Computer controlled with Haefely CaMS graphical user interface

Optically decoupled from computer

Compact, reliable, and EMC hardened design, IP50

DMI 553 is battery-operated and delivered in a convenient transport case

Tehnical Data

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text_align3=”center” text_align4=”center” text_align5=”center” rowspan5=”1″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][/tfdt_module_row][tfdt_module_row text1=”Input impedance” text_align1=”center” rowspan1=”1″ css_class1=”blue-bold-td” text2=”1 MΩ || 3 pF” text_align2=”left” text_align3=”center” text_align4=”center” text_align5=”center” rowspan5=”1″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][/tfdt_module_row][tfdt_module_row text1=”Frequency” text_align1=”center” css_class1=”blue-bold-td” text2=”DC, 10…600 Hz (Fundamental), 20th Harmonic (12 kHz)” text_align2=”left” text_align3=”center” text_align4=”center” text_align5=”center” _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][/tfdt_module_row][tfdt_module_row text1=”Accuracy” text_align1=”center” css_class1=”blue-bold-td” text2=”±0.1 % of reading ±10 V” text_align2=”left” text_align3=”center” text_align4=”center” text_align5=”center” 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DMI 552 / 553 Standard Package

Digital Measuring System

  • DMI 552 – Rugged
  • DMI 553 – Portable

Software on USB stick

Fiber Optic – USB/Ethernet adapter (Fiber Link)

Fiber Optic Cable, 20 m

Battery (DMI 553)

Transport case (DMI 553)

Connection set (per channel)

Instruction Manual & Quick Start Guide

Optional Extended Warranty (2 or 3 years)

DMI 552 / 553 Accessories

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” tag1=”th” text_align1=”center” rowspan1=”0″ colspan1=”0″ width1=”12%” css_class1=”blue-bold-td” text2=”The 9231 High Voltage Divider (25 … 200 kV) have been specially developed for AC high voltage measurement. Includes a double base to allocate the measuring instrument.” text_align2=”left” text_align3=”center” text_align4=”center” text_align5=”center” text_align6=”center” text_align7=”center” _builder_version=”4.27.5″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][/tfdt_module_row][tfdt_module_row text1=”9241 ” tag1=”th” text_align1=”center” width1=”12%” css_class1=”blue-bold-td” text2=”The 9241 High Voltage Divider (25 … 200 kV) have been specially developed for AC & DC high voltage measurement. Includes a double base to allocate the measuring instrument.” text_align2=”left” text_align3=”center” text_align4=”center” text_align5=”center” _builder_version=”4.27.5″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][/tfdt_module_row][tfdt_module_row text1=”SEK463 ” tag1=”th” text_align1=”center” width1=”12%” css_class1=”blue-bold-td” text2=”Secondary unit for AC & DC measurement. 140V output voltage. Other voltages on request.” text_align2=”left” text_align3=”center” text_align4=”center” _builder_version=”4.27.5″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][/tfdt_module_row][/tfdt_module]

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