ECM99-IC Intermediate Frequency Therapy Apparatus Technical Parameters:

1. Operating voltage and input power: AC 220V, 50Hz, 70VA.

2. Operating conditions: Ambient temperature 5℃~40℃, relative humidity ≤80%. Permissible load impedance 250-750Ω.

3. Operating frequency: 1kHz～12kHz, tolerance ±10%.

4. Output current: Under a 500Ω load resistance, the output current shall not exceed the following limits: frequency ≤1500Hz, 80mA (r.m.s); frequency >1500Hz, 100mA (r.m.s).

5. Output current stability: Under a 500Ω load resistance, the output current variation rate shall not exceed 10%.

6. Output waveform data includes any DC component of output voltage or current, pulse width, pulse repetition frequency, maximum amplitude, etc. Influence of load impedance on these parameters: When measured with a load resistance of 500Ω±10%, the measured values for the device's intermediate frequency and output amplitude, including any DC component, shall deviate by ≤±10%.

7. Modulation frequency range: 0Hz～220Hz.

8. Beat frequency range: Within 0～200Hz.

9. Modulation depth: Set at 0%, 25%, 50%, 75%, 100% modulation depth, with a tolerance of ±5%.

10. Two sets of interference electricity

11. Dynamic rhythm: 4s～10s.

12. Beat frequency variation period: 15s～30s.

13. Fundamental frequency and waveform: Square wave, frequency 1kHz～12kHz (corresponding pulse width 500μs-42μs).

14. Modulation wave frequency and waveform: Includes square wave, spike wave, triangular wave, exponential wave, sawtooth wave, sine wave, continuous wave, trapezoidal wave, fan wave, fan exponential wave, and their combinations.

15. Modulation modes: Continuous, intermittent, burst, frequency conversion, sparse-dense, and alternating modulation.

16. Output current adjustment method: Incremental and decremental via buttons (100 levels, 1mA per level).

17. Influence of power supply voltage fluctuation: Power supply voltage fluctuation ±10% shall cause ≤±10% variation in output amplitude, intermediate frequency, and modulation low frequency.

18. Continuous operation time: Not less than 4h. 

19. DC output [when using iontophoresis]: Maximum effective output voltage shall not exceed 60V.

20. Adjustable time: Default prescription time: 10min～45min, error ±10%. Adjustable time 1min～99min, step 1min, error ±10%.

21. Adjustable temperature: Heating electrode temperature 37℃～41℃, adjustable via software control (six levels).

22. Four channels can operate synchronously (same prescription, same amplitude), asynchronously (different prescriptions, different amplitudes), or with asynchrony within synchrony.

23. Short-circuit and open-circuit resistance: At maximum output, after open-circuit operation for 10min and short-circuit operation for 5min, the therapy apparatus shall function normally.

24. Safety type: Class I, Type BF.

25. Fuse: F2AL250V, Φ5×20.

26. Dimensions: 510mm×350mm×92mm.

27. Weight: 8kg.