AC/DC high-voltage transmitter for True RMS measurement Input signals from IIN = 100 mA AC up to IIN = 5 A AC.
The Varitrans® P 43000 AC/DC high-voltage transmitter series has been specially conceived for measurements of AC currents up to 5 A. They reliably isolate high potentials at the input circuit. Through True RMS determination in the transformer also distorted input signals are correctly recorded and converted to so-called True Root Mean Square (T-RMS) output signals.
The isolation unit is designed to permanently withstand potential differences up to 3600 V AC/DC and transient overvoltages up to 20 kV. Protection against dangerous currents is achieved through protective separation to EN 61140 from input to output and power supply.
A new 45 mm wide modular housing is used for the Varitrans® P 43000 D2 TRMS AC/DC high-voltage transmitters. It can be fixed on a standard DIN rail. The front panels of the adjustable models provide a rotary coding switch for selecting the ranges.
The Varitrans® P 43000 TRMS are available for any input current from 100 mA AC to 5 A AC. At the output analog standard signals are available: 0...20 mA, 4 ... 20 mA, or 0...10 V. The True-RMS conversion is performed precisely up to a crest factor of 5. Most widely used nominal frequencies from 16.7 Hz to 1000 Hz are supported.
16 customer-specific input/output signal combinations can be chosen and conveniently selected using a rotary coding switch on the device front. Tedious adjustments using screwdriver, calibrator, and multimeter are not necessary. Drift problems due to instable trimming components (e.g. potentiometers) are avoided. Thanks to the easy range selection, the devices can be flexibly suited to the individual needs of the application.
The integrated 20 to 253 V AC/DC broad-range power supply offers highest flexibility. It ensures problem-free operation with every AC or DC supply voltage utilized world-wide. Even instable power supply systems do not cause a problem. Installation is safe and easy: Erroneous connection of mains supply is practically impossible. Expensive standstill times and repair work during the commissioning are prevented.
Vacuum encapsulation provides maximum long-term protection against aggressive environmental influences, shock, and vibrations and ensures the high disruptive strength required for working voltages up to 3600 V AC/DC. The isolation unit meets the safety requirements of EN 61010-1.
In this product line Knick utilizes the new TransShield® technology which enables the construction of very compact and low-leakage high-voltage transformers. Due to the resulting space savings, a just 45 mm modular housing is sufficient for input currents up to 5 A AC. Another significant advantage of this technology: high transient overvoltages (common-mode voltages) are safely isolated and are practically not causing any error at the output.