SIGOFIT optically isolated probes

The Micsig SigOFIT series is a state-of-the-art line of optically isolated probes specifically designed for precise measurements in high-frequency and high-voltage applications. These probes utilise Micsig's exclusive SigOFIT™ technology to provide exceptional common mode rejection ratio (CMRR) and isolation voltage performance. With a bandwidth of up to 1 GHz and a CMRR of up to 180 dB at DC and 108 dB at 1 GHz, SigOFIT probes are ideal for the precise measurement of differential signals in the presence of large common mode voltages.

Key features and functions:

Optical isolation technology: SigOFIT probes use optical fibre connections to ensure complete electrical isolation between the measurement device (such as an oscilloscope) and the test circuit. This enables safe measurements in high-voltage environments while minimising the risk of interference from common mode voltages.

Wide range of applications: The probes in the SigOFIT series are versatile and are suitable for the development of motor drives, power converters, electronic ballasts and for analysing GaN and SiC semiconductor components, among other things. They are also ideal for safety testing in high-voltage and high-frequency applications.

High precision: With a DC gain accuracy of 1 % and a noise suppression of less than 450 µV RMS, the SigOFIT probes offer extremely high measurement accuracy. This enables the precise acquisition and analysis of even the smallest signal details.

Versatile attenuation peaks: The SigOFIT series probes are available with different attenuation tips that offer attenuation ratios from 10:1 to 10,000:1. This allows them to measure a wide range of differential voltages from ±0.01 V to ±6250 V. In addition, the probe's gain function can amplify the signal by a factor of 10, so that two attenuation ranges are available for each attenuation peak. However, it should be noted that when using the gain function, interference and noise can also be amplified.

Fast calibration and easy handling: The SigOFIT probes have an automatic calibration function that is completed in less than a second and can be performed without disconnecting the test circuit. This ensures efficient and easy handling, especially for repeated measurements.

Robust and compact design: Despite their advanced technology, the SigOFIT probes are compact and robust in design, making them suitable for use in laboratories as well as in demanding industrial environments.

Overall, the SigOFIT series has been designed with the highest safety standards in mind to provide users with a safe and reliable measurement environment, especially when working in high-voltage and high-frequency environments. These safety features make the SigOFIT probes an excellent choice for demanding and hazardous measurement applications.