ESU Analyzer

The Model ESU-2400 Electrosurgical Unit Analyzer is a high-accuracy, true RMS RF measurement system designed to be used in the calibration and routine performance verification of Electrosurgical Generators. It offers a higher degree of accuracy than previously attainable with conventional Electrosurgical Unit Analyzer designs. The ESU-2400 provides an advanced low reactance internal load bank with a range of 0 to 6400 ohms in 1-ohm increments. It is microprocessor-based and utilizes a combination of unique hardware and software to provide accurate and reliable test results, even from “noisy” ESU Generator waveforms such as “Spray”. The Patent Pending DFA® Technology utilized in the ESU-2400 allows the system to aggressively digitize the complex RF waveforms produced by Electrosurgical Generators, analyze each individual digital data point and provide highly accurate measurement results.

The ESU-2400, unlike many conventional ESU Analyzers, has internal HV setup relays to control the measurement path, allowing the user to switch between power measurements, leakage measurements, CQM/RECQM/ARM testing or even run an auto sequence that could include any or all of these tests – without even moving wires around.

The current transformer internal to the ESU-2400 senses the RF current flowing through the internal test load and produces a ratiometric voltage which is digitized and analyzed by the microprocessor. Combining the standard and low ranges of the ESU-2400 with the use of the current transformer, the user has full control over the ability to get high accuracy and high-resolution readings from all types of Electrosurgical Generators.

The following are some of the main features:

  • True RMS readings using DFA® technology
  •  Industry standard current sensing technology
  • mV, mV peak, ma, crest factor and power (wattage) ranges
  • Color QVGA display with touchscreen
  • 1% of reading measurement accuracy
  • Digital calibration – no pots to turn
  • Selectable display options
  • Graphical on-screen representation of measured RF signal
  • Standard (1000 mV) and low range (100 mV) with autoscaling capability
  • Pulsed RF waveform measurement mode for low duty cycle pulsed outputs offered by some electrosurgical manufacturers