2. Technical Specifications

3. Key Features

• Standard Compliance: Meets GB/T 8019 and ASTM D381 for accurate gum content analysis.

• Dual Control: Digital temperature controller (±0.1°C) and independent flowmeters for each jet.

• Efficient Testing: 3 simultaneous test positions with uniform heat distribution.

• Safe Design: Over-temperature protection, stainless steel bench, and oil-water separator.

• Easy Operation: Desktop structure, intuitive controls, and built-in silent air compressor.

4. Operating Instructions

1. Preparation: Place on a horizontal surface, connect power and air supply. Ground the unit securely.

2. Warm-up: Turn on the heater; wait for the bath to stabilize at 160–165°C.

3. Sample Loading: Pipette 50mL of cooled sample into a pre-weighed beaker (φ51×70mm). Insert into a test hole.

4. Air Adjustment: Set air pressure to 0.035MPa; adjust each jet flow to 1000±100mL/min.

5. Test Run: Start the timer (30min for gasoline). The instrument maintains temperature and airflow automatically.

6. Completion: After 30min, stop airflow. Remove beakers, cool in a desiccator, and weigh to calculate gum content.

5. Safety Warnings

• High Temperature: Avoid contact with the 160°C bath during operation—risk of burns.

• Ventilation: Use in a fume hood or well-ventilated area to prevent vapor accumulation.

• No LPG: Do not test liquefied petroleum gas—risk of overpressure.

• Disconnect Power: Unplug before cleaning, maintenance, or moving the unit.

• Grounding: Ensure proper grounding to prevent electric shock.

6. Maintenance

• Daily: Clean beakers and jets after use; check air filters for contamination.

• Weekly: Verify temperature calibration with a precision thermometer; adjust if needed.

• Monthly: Drain and clean the oil-water separator; inspect hoses for leaks.

• Storage: Keep in a dry, dust-free environment; cover to prevent contamination.