A new digital computing algorithm replaces moving parts and bridge components and allows digital calibration of the system. Application and system integration is simpliﬁed. The PDTech DELTAMAXX is ultracompact, can be battery operated, and uses differential ampliﬁers, thus allowing easy application to grounded and non-grounded test objects. The system automatically adapts to a wide range of test frequencies and locks into the main frequency while rejecting higher harmonics by the new algorithm. Typical 3rd and 5th harmonics are automatically eliminated. Its robustness against external disturbance and ease of application allows retroﬁt to many older high voltage test benches.
Test Frequency : 10 to 100Hz
Maximum Current : depends on external components (shunts), standard is 10A, 50 mA and 2A also available.
Reference Capacitor : 1nF nominal up to 20 kV at 23°C, correction in settings, see QA certiﬁcate for precise values