Belifu FM-B2402 - User Manual

This document describes the Belifu FM-B2402, a 4-independent channel TENS EMS unit designed for temporary pain relief and muscle stimulation.

Function Description

The device operates by applying electrical pulse waves to the human body. This electrical energy is absorbed, leading to physical and chemical changes that produce local or systemic physiological reactions, ultimately influencing pathological processes.

In TENS mode, the device is intended for temporary relief of pain and recovery from fatigue associated with sore and aching muscles due to strain from exercise or normal household work activities. In EMS mode, it is used to stimulate healthy muscles to improve and facilitate muscle performance.

The device is suitable for adults experiencing sore and aching muscles in the shoulder, waist, back, neck, upper extremities (arms), and lower extremities (legs) due to strain from exercise or normal household work activities. It should not be used by children, pregnant women, or individuals with implanted metallic or electronic devices. Consultation with a physician is recommended for any questions.

The device offers 24 modes, categorized into 6 main modes, each containing 4 built-in sub-modes. These modes include:

• Main Mode 1 (Kneading): Lateral palm kneading (TENS) for joint pain, sciatica, muscle spasms, back, neck, and shoulder pain; Flat palm kneading (TENS) to enhance function, aid healing, decrease muscle reflex activity, and promote relaxation; Crosscut fist kneading (EMS) as an alternative medicine technique using finger and palm pressure, stretches, and other massage techniques; Vertical fist kneading (TENS) for manipulating superficial and deeper muscle and connective tissue layers.
• Main Mode 2 (Acupuncture/Moxibustion): Acupuncture (EMS) for Chinese meridian pressure points, headaches, various ailments, and muscle/joint pain, particularly for acute pain relief; Moxibustion (EMS) to relieve pain, relax mind/muscle, and promote sleep; Acupuncture kneading (EMS) for muscle reduction, relaxation of muscle spasms, increased range of motion, injury recovery, and post-surgery recovery; Moxibustion kneading (EMS) for chronic conditions like insomnia, constipation, headaches, and stress-related tension.
• Main Mode 3 (Rubbing/Tapping): Rubbing (TENS) for scratching and kneading sensation, releasing unhealthy elements from injured areas, and stimulating blood flow; Rubbing reduction (TENS) for acute and chronic internal organ disorders, pain, stiffness, fever, cough, wheeze, nausea, and vomiting relief; Tapping (TENS) for hard thumping sensations to massage muscles, providing an invigorated and revitalized feeling; Fibrillation massage (TENS) for muscle reduction, relaxation of muscle spasms, increased range of motion, injury recovery, and post-surgery recovery.
• Main Mode 4 (Manipulation): Lifting-pinching manipulation (TENS+EMS) to strengthen and firm muscles in abs, back, thighs, and arms; Vibrating manipulation (TENS+EMS) for muscle strains, herniated discs, stenosis, spondylosis, spondylolisthesis, and general arthritis pain; High frequency manipulation (TENS) as an auto-combination of modes for full body relaxation after workouts or hard work; Fibrillation manipulation (TENS) for muscle knots and tightness caused by strain or overworking.
• Main Mode 5 (Shiatsu/Thai Massage): Shiatsu-Deep (TENS) for foot pain (plantar fasciitis, scarring, collagen breakdown, micro-tears, heel spurs, muscle/ligament strains); Thai Massage (TENS) for pain and stiffness from sports injuries, whiplash, osteoarthritis, muscle spasms, fibromyalgia, and carpal tunnel syndrome; Shiatsu (TENS+EMS) to facilitate healing from minor ailments (headaches, back pain, digestive, sinus, skin problems); Strength Alternate Massage (TENS+EMS) for neck and shoulder pain relief.
• Main Mode 6 (Cupping): Twinkling Cupping (TENS) using low frequency vibrations to promote blood circulation and pain relief, specifically for lower back; Cupping (TENS) for back/neck pains, stiff muscles, anxiety, fatigue, migraines, rheumatism, and cellulite; Fibrillation Cupping (TENS) for muscle strains, herniated discs, stenosis, spondylosis, spondylolisthesis, and general arthritis pain; Cup retaining (TENS) for Achilles bursitis, sprains, strains, heel pain, bone spurs, tendonitis, ankle impingement, and general arthritis.

Important Technical Specifications

• Product Name: 4 independent channel TENS/EMS unit
• Model: FM-B2402
• Power Supply: Lithium battery, 3.7V/300mAh capacity
• Charge Time: Approximately 2 hours
• Battery Run Time: Approximately 8 hours
• Load Resistance: 500Ω
• Output Frequency: 0Hz~199Hz
• Maximum Pulse Width: 180uS
• Velocity Pulse Amplitude: 0~98 Vpp
• Low Voltage Protection: MAX≤3.3V
• Weight: 120g
• Size: (L)120mm*(W)60mm*(H)11mm
• Number of Channels: 4
• Treatment Time: 10-80mins (adjustable in 10-minute increments)
• AC Adapter: 110V-240V
• Charging Interface: TYPE-C USB
• Backlight Current: 20-30mA
• Operating Current: 0~60mA
• Standby Current: 0~10mA
• Quiescent Current: 0~5uA
• Display: LCD liquid crystal
• Operating Environment Temperature: 5°C~40°C (41.0 °F ~104 °F)

Usage Features

• 4 Independent Channels: Allows for different modes and intensity settings on each channel simultaneously.
• Intuitive Controls: Features buttons for power on/off, charging, mode selection (main and sub-modes), intensity adjustment (+/-), time setting, pause, and lock.
• Screen Display: LCD screen shows channel indicators, mode icons, time icon, pause icon, lock status, and battery level. An indicator light shows charging status (red for charging, green for full).
• Intensity Adjustment: Intensity levels can be increased or decreased. Treatment starts when intensity is above 0. Intensity resets to 0 if the mode is changed or pads fall off.
• Time Setting: Default treatment time is 20 minutes, adjustable from 10 to 80 minutes in 10-minute increments.
• Pause Function: A dedicated "PAUSE" button suspends treatment, displaying a pause icon. Settings cannot be changed in pause state. Press again to resume.
• Lock Function: The device automatically locks after 180 seconds of inactivity or can be manually locked via the "LOCK" button to prevent accidental presses. An "On" icon indicates locked status. Press "LOCK" again to unlock.
• Backlight: The screen backlight automatically turns off after 30 seconds of inactivity but can be manually toggled on/off.
• Memory Function: Remembers the last selected mode and intensity level after a short pause or shut down.
• Safety Checks: Before use, users must check pads and wires for damage, and the unit for physical damage. The device should not be used while charging.
• Electrode Pad Connection: Ensure snap connections are fastened. At least one pair of pads must be used. Wires must be fully inserted to prevent loose connections and decreased output power.
• Pad Placement: When using one wire with two connectors, both pads must be stuck to the body. When using two wires, at least two pairs of pads (blue and white snaps paired) must be stuck to the body.
• Channel Selection: The default channel is CH1. Users can press the "CH" key to select other channels (CH2, CH3, CH4) and set independent modes and intensities for each.

Maintenance Features

• Device Cleaning: The main unit should be cleaned frequently with a soft, dry cloth. Avoid water, detergents, thinners, or volatile oils containing chemical substances.
• Electrode Pad Care:
  • The gel surface should be kept clean from dust, oily substances, and sticky materials to maintain stickiness.
  • After use, place pads back on pad holders or protective films.
  • If stickiness weakens or a tingling sensation occurs, gently wipe the gel surface with a damp cloth (using a little water). Stickiness will recover after drying. Avoid overusing water, paper towels, nails, or brushes on the gel surface.
  • Massage pads are consumables with a service life of generally 20-30 uses. Replace pads when they lose stickiness or pulse weakens.
• Storage:
  • Do not place the main unit in direct sunlight, high temperature, humidity, dusty areas, near fire, or places prone to vibration or shock.
  • Keep out of reach of children.
  • Store pads on pad holders or with plastic film to keep the gel moist.
• Battery Maintenance: The product uses built-in polymer batteries. If not used for a long time, charge it every 6 months.
• Skin Care Tips:
  • Wash the skin area where electrodes will be placed with mild soap and water before and after application. Rinse thoroughly and dry well.
  • Excess hair may be clipped; do not shave the stimulation area.
  • Wipe the area with skin preparation wipes and let it dry before applying electrodes.
  • Apply electrodes from the center outward to avoid "pulling stress" from excessive stretching.
  • Tape extra lengths of lead wires to the skin in a loop to prevent tugging on electrodes.
  • Remove electrodes by pulling in the direction of hair growth.
  • Rub skin lotion on electrode placement areas when not wearing electrodes.
  • Never apply electrodes over irritated or broken skin.

Troubleshooting Guidance

The manual provides solutions for common issues such as:

• Painful burning sensation or weakened stimulation: Check pad adhesion and dryness.
• No sensation despite unit being on: Check pad adhesion, connections, and intensity level.
• Pads not sticking: Replace pads.
• Unit not turning on or dim screen: Recharge battery.
• Inadequate pain relief: Use massager 20-30 minutes, 3-6 times per day.
• Modes/channels flashing, unable to select mode/adjust intensity: Ensure two or four pads are used simultaneously and correctly placed.
• Strong pulses on one side, weak on the other: Wipe skin with a wet towel before use to ensure adequate contact; ensure symmetrical electrode placement.
• Key failure (locked or paused): Press "LOCK" or "PAUSE" to continue.
• Feeling unwell (too strong): Reorient electrode position, decrease intensity, or replace damaged electrodes/conductors.