I. Technical Parameters of HY-D02 Intermediate Frequency Drug Introduction Therapy Device

1. Ambient temperature: +10°C to +40°C; Ambient humidity: 30% to 75%; Atmospheric pressure: 700 hPa to 1060 hPa

2. Power supply: 220V ±22V/50Hz ±1Hz; Input power: 30 VA

3. Intermediate frequency: 2.5 (1±10%) kHz; 7.5 (1±10%) kHz

4. Pulse width: 66 (1±10%) μs; 200 (1±10%) μs

5. Modulation wave frequency: 0 to 440 Hz

6. Modulation depth: 0 to 100%; Tolerance: ±10%

7. Output voltage: Intermediate frequency mode: VOPP ≥ 90V; Introduction mode: VOPP ≥ 80V

8. Output modes:

① Intermediate frequency (low-frequency modulated intermediate frequency bidirectional)

② Drug introduction (low-frequency modulated intermediate frequency unidirectional)

③ Thermotherapy

④ Normal temperature

9. Output waveforms: ① Base wave: Pulse square wave

② Modulation wave: Exponential wave, forward/backward slanted sawtooth wave, square wave, spike wave, triangular wave, sine wave, step wave, constant amplitude wave

10. Heating function: The temperature of the electrode plate should not exceed 60°C during heating.

11. Continuous operation time: Not less than 4 hours.

12. The effective load resistance of this product is 500 Ω. The above technical parameters should be measured under this load resistance (with an error not exceeding ±10%). The measured values should not deviate by more than ±30% from the pulse width, pulse repetition frequency, and amplitude values specified in the accompanying documents or marked on the device.

13. This product mainly consists of the main unit, output electrode plates, therapy leads, power cord, and fixing straps.

14. Environmental conditions for transportation and storage: Ambient temperature: -20°C to +55°C; Ambient humidity: ≤93%; Atmospheric pressure: 500 hPa to 1060 hPa

Intermediate frequency: Indicator light on indicates the device is in intermediate frequency therapy mode (default mode upon startup).

Introduction: Indicator light on indicates the device is in drug introduction therapy mode.

Frequency increase: Indicator light on indicates the device is in frequency increase therapy mode.

Frequency decrease: Indicator light on indicates the device is in frequency decrease therapy mode (default frequency decrease mode upon startup).

Therapy: Indicator light on indicates the device is currently in therapy mode.

Protection: Indicator light on indicates the device is in automatic safety protection mode, indicating an output circuit break.

Thermotherapy: Indicator light on indicates the device is in heating operation mode.

Repeat: Indicator light on indicates the device is outputting a repeated waveform.

Prescription: Displays the sequence number of the selected program prescription.

Dosage: Displays the output dosage (i.e., output intensity).

Time: Displays the therapy time (countdown).