DMI 552
The DMI 552 is a laboratory optimized, highly integrated, versatile digital measuring instrument for AC and DC in high voltage laboratories according IEC 61083-3:2020.
High voltage measurements are done by connecting a specialized voltmeter (like the DMI 552) to the secondary unit of a voltage divider or to a current to voltage transducer (like a shunt).
Measured values are shown as large digits on the computer screen using Haefely CaMS software. In addition, for pass/fail criteria during dielectric tests, Peak by √2 voltage is recorded & last value before breakdown is shown.
Graphical indications as scope function, FFT, datalogger or flash detetion 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 can generate reports based on templates which can be printed or saved as PDF. Snapshots of the display or charts can be easily included in the reports.
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 current channel (optional)
- Computer controlled with Haefely CaMS graphical user interface
- Optically decoupled from computer
- Compact, reliable, and EMC hardened design, IP50
- Mains powered
