Isolation Ampilfier for Direct Current measurement Input = 0.1A ... 5A Isolation test voltage up to 15kV Working voltage up to 3600V AC/DC 3 port galvanic isolation Up to 16 different switchable settings.
The Varitrans® P 43000 isolation amplifier series has been specially conceived for direct measurement of currents up to 5 A AC/DC. They reliably isolate high potentials at the input circuit.
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.
For the VariTrans P 43000 high-voltage isolation amplifiers a new 45 mm wide modular housing is used. It can be fixed on a standard DIN rail. The front panels of the adjustable models provide a rotary decoding switch for selecting the ranges.
The Varitrans® P 43000 are available for any input currents from ±100 mA to ±5 A. At the output analog unipolar or bipolar (standard) signals are available: ±20 mA, ±10 V or 4 ... 20 mA. 16 input/output signal combinations can be 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. Up to 16 customized signal combinations can be implemented in one device.
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 and EN 50124-1 (railway applications: insulation coordination).
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/DC. Another decisive advantage of this technology: High transient overvoltages (common-mode interferences) are reliably separated and do not cause any notable measurement error at the output.