Tianchangfu T99-FIV Type Intermediate Frequency Electrotherapy DeviceProduct Performance

The T99-FIV type computer intermediate frequency therapy device is a medical device used for physical therapy. This unit employs microcomputer control technology, composed of medium and large-scale integrated circuits, featuring four intermediate frequency channels (A, B, C, D) and four drug iontophoresis channels. It can synchronously control four output channels or operate individual channels, with each channel having independent heating function, capable of regulating high or low temperatures. Each channel can use different prescriptions or the same prescription simultaneously. It can treat four patients or multiple different treatment areas for two patients. Additionally, based on doctors' needs, four DC output ports are provided for drug iontophoresis according to patient conditions. The device stores 99 specific series program prescriptions.

1T99-FIV Type Intermediate Frequency Electrotherapy Device Main Technical Parameters

2. Operating Frequency:

a) Intermediate frequency carrier frequency (2000, 3000, 4000, 5000, 6000, 7000, 8000) Hz, frequency tolerance ±10%

b) Low frequency modulation frequency: single frequency not narrower than 0-150 Hz range, frequency tolerance ±10%

3. Modulation Waveform: Square wave, spike wave, triangle wave, sawtooth wave, exponential wave, sine wave.

4. Modulation Depth: 25%, 50%, 75%, and 100%

5. Output Current: At reference load 500Ω, output current value should not be less than 50mA, output current limit not exceeding 100mA (tolerance ±10%), and adjustable from 0 to output value range.

6. Output Current Stability: Output current variation rate ≤5%.

7. Timing: Output timing respectively (20±10%)

8. Continuous Operating Time: Not less than 4h

9. During output, after electrode short circuit for 5s, open circuit for 15s, turn off output for 1min, repeat test 10 times, the electrotherapy device operates normally.

10. Temperature Control Requirements: High gear 42℃±2℃, Medium gear 38℃±2℃, Low gear 34℃±2℃

11. Pulsating ion input, select prescription 33 for rectified pulsating current used in drug iontophoresis.

12. Operating Power Supply: AC 220V; Frequency 50Hz

13. Ambient Temperature: 5-40℃, Relative Humidity ≤80%

14. Input Power: ≤80VA

15. Safety Classification: Class I BF Type