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T99-C Computer Medium Frequency Electrotherapy Apparatus Main Technical Parameters:

1. Operating frequency: Medium frequency carrier frequency 2-6kHz, single frequency tolerance ±10%

2. Modulation waveforms: Square wave, spike wave, triangular wave, sawtooth wave, exponential wave, step wave, sine wave, and several combined waveforms 

3. Modulation degree: 33%, 50%, 75%, and 100% Low-frequency modulation frequency: 0-150Hz, beat frequency variation period: 15-30s 

4. Modulation methods: Continuous modulation, interrupted modulation, intermittent modulation, frequency conversion modulation, and alternating modulation. Alternating modulation includes 1-element modulation, 2-element modulation, and 3-element modulation

5. Output current adjustment method: Key increment and decrement (100 levels, 1mA per level) 

6. Maximum output current: 50mA ≤ maximum output current ≤ 100mA (load 500Ω) 

7. Output current stability: Output current variation rate ≤ 5% 

8. Output channels: Two independent channels A and B. (Two medium frequency channels, two iontophoresis channels) 

9. Storage capacity: 64K bytes, 40 built-in prescriptions 

10. Operating power supply: AC 220V+10%; due to the wide operating range of the switching power supply, it can be directly used with a 110V+10% power supply without modification. Frequency 50Hz±2% 

11. Operating environment: Temperature 5-40℃, relative humidity <80% 

12. Operating voltage: AC 220V±10%, 50Hz±2% 

13. Output power: ≤35VA 

14. Input power: ≤80VA+15% 

15. Safety classification: Class I, BF type 

16. Duty cycle: Continuous operation, intermittent loading

17. Net weight: 6kg 

18. Dimensions: 455x308x50mm 

19. Equipment classification: Class I, BF type