1. Know Your Machine
This section provides an overview of the AUVON EasyStim TN28_OTC device and its components.
Device Diagram Description: The device features a digital LCD screen displaying program information, intensity levels, time, and mode. Control buttons include a power button, play/pause button, menu button, program selection button, intensity adjustment buttons (for Channel 1 and Channel 2), and channel selection buttons. The device also has a belt clip for portability.
Device Components:
- 1. Frequency (Hz)
- 2. Program
- 3. "P" (preset mode) / "M" (manual mode)
- 4. Channel 1 intensity
- 5. Paused indicator
- 6. Pause button (▶️ / ⏸️)
- 7. Program selection button
- 8. Channel 1 intensity increase (▲)
- 9. Channel 1 intensity decrease (▼)
- 10. Pulse width (uS)
- 11. Running time (min)
- 12. Waveform
- 13. Locked indicator (?)
- 14. Power button
- 15. Channel 2 intensity
- 16. Low battery indicator (?)
- 17. MENU button
- 18. Channel 2 intensity increase (▲)
- 19. Channel 2 intensity decrease (▼)
- 20. Channel 1
- 21. Belt Clip
- 22. Channel 2
2. Install Batteries
Follow these steps to install batteries into the device:
- Step 1: Push and press the corner of the clip as shown in the picture with your left thumb and pull down with your right hand to open the battery compartment.
- Step 2: Open the lid of the battery compartment.
- Step 3: Insert the batteries (AA Alkaline 1.5 volt batteries recommended). Ensure the ribbon is behind the batteries for easy removal.
CAUTION: There is a risk of explosion if batteries are fitted incorrectly. Do not mix old and new batteries. Do not dispose of batteries in fire. Keep batteries out of reach of children. Remove batteries if the unit will not be used for a long period.
Note: When batteries are low, a low battery indicator will flash on the screen. Change batteries as soon as possible.
3. Connect Lead Wires to CH1 or CH2
Decide whether to use one or two lead wires. If using two leads, insert the plugs into both jacks on the unit. If using only one lead, insert it into one jack.
(Image Description: Shows lead wires being plugged into the device's CH1 and CH2 ports.)
4. Connect Electrode Pads to Lead Wires
Take out electrode pads from the bag and connect them to the lead wires. Each lead wire should connect to one electrode pad.
(Image Description: Shows hands connecting electrode pads to the ends of lead wires.)
5. Place Electrode Pads
Remove electrode pads from their plastic film and place them on your skin. Ensure the skin area is clean and thoroughly dry. Position the electrode pads on your body as required.
NOTE: The system will default to "0" intensity on the respective channel if electrode pads are not attached correctly to the lead wires or placed on your body.
(Image Description: Shows electrode pads being peeled from a backing and then applied to skin on an arm.)
6. Operation of the Device
Power On/Off: Press the power button for 2 seconds to turn the device on or off. The unit will automatically turn off if no other key is pressed within 5 minutes.
Pause/Continue: Press the pause button (▶️ / ⏸️) to pause the unit. Press it again to continue. When paused, the intensity level goes down to zero, and a pause symbol (⏸️) is displayed. The device will resume from where it was paused. If paused for over 5 minutes, it will shut off automatically.
Parameter Selection (Manual Modes): Press the MENU button to cycle through parameters one by one.
Intensity Adjustment: Use the CH1/CH2 ▲/▼ buttons to increase or decrease the intensity for Channel 1 or Channel 2, from level 0 to 60.
Program Selection: Press the program selection button to cycle through the 32 available programs. The LCD will display "P" for preset mode or "M" for manual mode. Preset modes are indicated by a small point on the display, showing the specific treatment area.
Locking: If no keys are pressed for 30 seconds, the unit will lock, and a lock symbol (?) will be displayed. To unlock, press the ▼ button on CH1 or CH2.
7. Introduction of Programs
The device offers TENS, EMS, and Massage programs.
TENS Programs (P1-P11)
For pain relief using TENS programs, start with the lowest intensity and gradually increase it until you feel a "tingling" sensation. All programs differ in feel. Try different programs to find what feels pleasant. Never increase intensity to the point of pain; stay within the point of discomfort.
| Program | P1 | P2 | P3 | P4 |
|---|---|---|---|---|
| Mode | TENS | TENS | TENS | TENS |
| Preset/Manual | P | P | P | P |
| Frequency (Hz) | 50 | 85 | 2 | 100 |
| Pulse width (uS) | 100 | 200 | 300 | 150 |
| Time (min) | 30 | 30 | 30 | 30 |
| Waveform | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) |
| Suggested site for use | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) |
| Program | P5 | P6 | P7 | P8 | P9 | P10 | P11 |
|---|---|---|---|---|---|---|---|
| Mode | TENS | TENS | TENS | TENS | TENS | TENS | TENS |
| Preset/Manual | P | P | P | P | P | P | M |
| Frequency (Hz) | 100 | 10 | 80 | 50 | 120 | 80 | 1-150 |
| Pulse width (uS) | 150 | 250 | 50 | 150 | 250 | 150 | 50-250 |
| Time (min) | 30 | 30 | 30 | 30 | 30 | 30 | Continuous time (10,20,30,45,60,90 min) |
| Waveform | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Alternative mono-phasic rectangular) |
| Suggested site for use | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) |
EMS Programs (P12-P22)
For muscle stimulation (EMS), programs P12-P22 are recommended for muscle strains, massage, and restoring muscle vitality. Start slowly with low intensity levels and increase intensity and treatment time as you progress. Use regularly for benefits similar to passive "exercise".
| Program | P12 | P13 | P14 | P15 |
|---|---|---|---|---|
| Mode | EMS | EMS | EMS | EMS |
| Preset/Manual | P | P | P | P |
| Frequency (Hz) | 6 | 7 | 49 | 65 |
| Pulse width (uS) | 200 | 300 | 200 | 300 |
| Time (min) | 30 | 40 | 30 | 25 |
| Waveform | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) |
| Suggested site for use | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) |
| Program | P16 | P17 | P18 | P19 | P20 | P21 | P22 |
|---|---|---|---|---|---|---|---|
| Mode | EMS | EMS | EMS | EMS | EMS | EMS | EMS |
| Preset/Manual | P | P | P | P | P | P | M |
| Frequency (Hz) | 5 | 75 | 85 | 12 | 5 | 40 | 1-120 |
| Pulse width (uS) | 300 | 200 | 100 | 400 | 200 | 200 | 50-400 |
| Time (min) | 30 | 30 | 30 | 30 | 30 | 25 | Continuous time (10,20,30,45,60,90 min) |
| Waveform | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Alternative mono-phasic rectangular) |
| Suggested site for use | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) |
Massage Programs (P23-P32)
For Massage, programs P23-P32 may be used to relax anywhere anytime. These gentle massage modes are preprogrammed for ultimate relaxation.
| Program | P23 | P24 | P25 | P26 |
|---|---|---|---|---|
| Mode | MASSAGE | MASSAGE | MASSAGE | MASSAGE |
| Preset/Manual | P | P | P | P |
| Frequency (Hz) | 8 | 2 | 1 | 15 |
| Pulse width (uS) | 300 | 200 | 200 | 200 |
| Time (min) | 27 | 36 | 44 | 30 |
| Waveform | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) |
| Suggested site for use | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) |
| Program | P27 | P28 | P29 | P30 | P31 | P32 |
|---|---|---|---|---|---|---|
| Mode | MASSAGE | MASSAGE | MASSAGE | MASSAGE | MASSAGE | MASSAGE |
| Preset/Manual | P | P | P | P | P | P |
| Frequency (Hz) | 15 | 15 | 15 | 85 | 25 | 1 |
| Pulse width (uS) | 300 | 200 | 300 | 100 | 200 | 200 |
| Time (min) | 30 | 30 | 30 | 30 | 30 | 30 |
| Waveform | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Symmetrical Bi-phasic Rectangular) | (Alternative mono-phasic rectangular) | (Alternative mono-phasic rectangular) | (Symmetrical Bi-phasic Rectangular) |
| Suggested site for use | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) | (Diagram: Torso, arms, legs) |
8. Other Features
- The intensity will immediately go to zero and flash if the unit is not properly connected to the body.
- When the output intensity level of CH1 and CH2 is over 0, the corresponding output sockets will light up. If an open circuit occurs, the sockets will light off after 5 seconds.
- After switching on, if no keys are pressed for 10 seconds, the LCD backlight will turn off automatically. Press any key to relight the LCD.
- Treatment time is accumulated when the output level is above zero. To display accumulated time, press and hold MENU and CH2 ▼ for 3 seconds. To clear the treatment time to zero, press and hold MENU and CH1 ▼ for 3 seconds.
9. Store Properly After Use
a. After Use
Always ensure the unit is switched OFF before removing electrodes. After use, return the electrodes to their clear plastic shields. There is no need to separate the leads from the electrodes.
b. Use TENS Pads Holder
The TENS Pads Holder is made of high-quality ABS material for safe use. It offers wide compatibility for patches in different sizes. Its salient point design is intended to lessen damage to the patches.
Instructions for Holder:
- Step 1: Stick the electrode patches onto the holder to avoid dust.
- Step 2: Wind the lead wires around the holder for easy storage, as shown in the picture.
(Image Description: Shows a TENS pads holder with multiple circular indentations for electrode pads, and a diagram illustrating how to wrap the lead wires around it.)
10. Trouble Shooting
Always check the unit and accessories before use to prevent damage and defects.
| If this happens... | Cause | Try this solution... |
|---|---|---|
| Device doesn't turn on. | Batteries are not detected or expired. | Replace batteries. |
| The device turns on and then off again. | Batteries are not detected or expired. | 1. Re-insert batteries according to instructions. 2. Or replace batteries. |
| The device turns on, but intensity cannot be increased beyond "1" for extended period. Auto intensity reset safety feature is initiated. | System is not set-up properly or resistance to pads is not detected by device. | 1. Connect lead wires to device, electrodes to lead wires, and place on body part. 2 small or 1 XL electrode pad per channel is required. 2. Replace used electrode pads. The quality of the gel may be diminished. |
| The device turns on, but does not generate electric pulses. | 1. Lead wires or electrode pads are broken or disconnected. 2. Treatment time expired. |
1. Replace/reconnect lead wires. 2. Ensure lead wires are properly seated in CH1/CH2. 3. Switch the device to the OFF position and then power ON. |
| Intensity goes to "0". | The intensity will go to "0" if any adjustment on any parameters are changed, such as change on time, waveform, frequency, pulse width, etc. | N/A (This is a feature, not a fault) |
| The device doesn't turn on even though new batteries are installed. | System is not set-up properly or resistance to pads is not detected by device. | Contact customer service at support@iauvon.com. |
Disposal and Customer Service
Disposal: Follow all laws and regulations regarding the proper disposal of batteries and electronic devices relevant in your area. Consult your municipal authority or dealer for information about proper disposal.
Customer Service: The product comes with a 12-Month Limited Warranty and Lifetime Technical Support. Registering with AUVON® may provide an additional 12-month warranty extension, totaling 24 months of protection.
