K824 Intermediate Frequency Electrotherapy Apparatus

Xiangyun K824 Medium Frequency Electrotherapy Device is a medical device used for physical therapy. This unit employs microcomputer control technology, composed of medium and large-scale integrated circuits, featuring two groups of four channels (synchronous or asynchronous) output. The output current intensity is adjusted via increment and decrement buttons (200 levels, 0.5mA per level). When the prescription program concludes, the device automatically cuts off the output current and emits an audible prompt.

The device stores 99 specific series program prescriptions. Its main feature is multi-step program prescription current therapy. This innovative multi-step program prescription is stored in the computer memory, with the CPU controlling the output of various waveforms (such as square wave, sine wave, exponential wave, triangular wave, spike wave, sawtooth wave) modulated medium frequency current, which acts on the human body through electrode pads. During the entire treatment process, patients may experience various sensations such as pushing, grasping, pressing, squeezing, tapping, and vibration. It is this variability that prevents the treated area from developing adaptability. Within a certain frequency range, the impedance of human tissue is inversely proportional to frequency, so medium frequency current can penetrate deeper into human tissue than low frequency current and is more comfortable on the skin. Therefore, this multi-step program prescription current therapy has effects including pain relief, anti-inflammation, scar softening, muscle exercise, and improved local blood circulation.

Xiangyun K824 Medium Frequency Electrotherapy Device Main Technical Parameters

3.1 Medium Frequency Carrier Frequency: (1000, 2000, 3000, 4000, 5000, 6000, 8000, 10000) Hz ±10%

3.2 Low Frequency Modulation Frequency: (0-150) Hz ±10%

3.3 Modulation Waveforms: Square wave, triangular wave, exponential wave, sine wave, sawtooth wave, spike wave

3.4 Modulation Depth: The modulation depth of the electrotherapy device is divided into three levels within the 0-* range: 25%, 62.5%, and *. Allowable modulation depth error ±5%

3.5 Output Current: Under a reference load of 500Ω, the maximum output current should be no less than 50mA, and the output current limit should not exceed 100mA. It should be continuously adjustable from the minimum to the maximum output value.

3.6 Output Current Stability: The variation rate of the output current should not exceed ±5%

3.7 Continuous Operation Time: Not less than 4 hours

3.8 Short Circuit Resistance: At maximum output, short-circuit the electrodes for 5 seconds, open circuit for 15 seconds, repeat the test 10 times. The electrotherapy device should remain functional.

Normal Operating Conditions:

Power Supply: AC 220V ±22V, 50Hz ±1Hz

Operating Environment: Temperature 5-40°C, Relative Humidity ≤80%

Input Power: ≤80VA

Product Classification: Class II

Safety Classification: Class I, Type BF, symbol indicates the applied part's degree of protection against electric shock is Type BF.