Lab Companion High Temperature Oven Safety Procedures

Safety Operation Procedures and Accident Prevention Measures for Lab Companion High Temperature Ovens

High temperature ovens are widely used in industrial drying, curing, high-temperature aging and other working conditions. With high operating temperature and heavy running load, they are prone to cause burns, fires, explosions, electrical short circuits and other safety accidents. To ensure personnel and equipment safety and standardize operation procedures, these safety operation procedures and accident prevention measures are formulated in accordance with industrial oven application standards.

1. Safety Operation Procedures for High Temperature Ovens

1.1 Pre-Start Safety Inspection

1.1.1 Environment Inspection

Keep the operation area ventilated, dry and tidy. No flammable and explosive materials, corrosive liquids, cartons, debris or other items are allowed within 1.5 meters around the oven. The ground shall be flat and stable, and sufficient space shall be reserved for equipment heat dissipation.

1.1.2 Equipment Status Inspection

Check that the door sealing gasket is intact without damage, and the inner chamber, air duct and heating elements are free of oil, debris and water. Confirm that the temperature sensor, over-temperature protector, fan and emergency stop switch function properly. For explosion-proof ovens, inspect that the gas monitoring, exhaust and pressure relief devices are intact.

1.1.3 Sample Compliance Inspection

It is strictly prohibited to place flammable, explosive, volatile, strong oxidizing or highly corrosive items. Sealed containers and pressurized components shall not be baked directly. Dangerous goods such as lithium batteries and chemical raw materials must be processed in dedicated explosion-proof ovens.

Samples shall be placed evenly without blocking air ducts or touching heating elements, and the loading capacity shall not exceed 1/3 of the effective inner chamber volume.

1.1.4 Power, Water and Parameter Inspection

Confirm that the supply voltage is consistent with the equipment nameplate and the grounding is firm and reliable. For water-cooled models, check that the cooling water flow and quality are normal.

Verify the set temperature, time and program. Operation beyond the rated temperature range of the equipment is strictly prohibited.

1.2 Standard Operation During Operation

• After placing samples, close and lock the chamber door tightly to ensure good sealing.

• Start the equipment according to procedures, and observe whether the temperature rise, fan operation and instrument display are normal, with no abnormal noise, odor or smoke.

• Assign dedicated personnel on duty during equipment operation. Check temperature and alarm information regularly; do not leave the post without permission or sleep on duty.

• Frequent door opening, modification of system protection parameters, and touching of high-temperature inner chamber, sample racks and heating components are strictly prohibited during operation.

• For live or liquid-containing samples, strictly control the load power and standardize wiring to prevent short circuits and liquid leakage.

• In case of over-temperature, alarm or fault prompt, immediately press the emergency stop switch, cut off the main power supply, and restart only after troubleshooting.

1.3 Shutdown and Final Operations

• After testing, stop heating first and keep the fan running to allow the internal temperature to naturally drop below 60°C before opening the door.

• Open the door slowly sideways to release residual heat first. Wear high-temperature resistant insulated gloves when handling samples to prevent scalding.

• Clean up residual debris and water in the inner chamber in a timely manner, wipe the inner chamber with soft cotton cloth, and keep the cabinet dry and clean.

• Turn off the main power and water supply. Drain water from pipelines for water-cooled models. Tidy up tools and samples, and restore the operation area to order.

• Fill in the equipment operation log truthfully, recording running time, temperature parameters, sample information and abnormal conditions.

1.4 Basic Requirements for Operators

• Operators must be professionally trained and qualified before taking post, and be familiar with equipment structure, operation procedures and emergency response methods.

• Wear insulated gloves, goggles and other protective equipment as required during operation. Do not wear loose clothing; tie long hair up to avoid entanglement with equipment.

• Unauthorized personnel are prohibited from approaching or touching the equipment. Warning signs shall be set in the operation area.

2. Prevention Measures for Typical Accidents

2.1 Fire Accident Prevention

• Baking of gasoline, alcohol, thinners, diluents and other flammable and explosive volatile substances is strictly prohibited. If necessary, use explosion-proof ovens with forced exhaust enabled.

• Regularly clean dust, oil and plastic residues in heating tubes, air ducts and fans to prevent heat accumulation and spontaneous combustion.

• Calibrate the independent over-temperature protection device quarterly to ensure automatic power cutoff of heating supply when temperature exceeds the limit.

• Equip dry powder fire extinguishers near the equipment. Water or foam fire extinguishers are prohibited for electrical and high-temperature fires.

• Avoid prolonged high-temperature operation without load to prevent overheating and burnout of heating elements.

2.2 High-Temperature Scald Prevention

• Post obvious "High Temperature Hazard" warning signs on the equipment. Touching the cabinet, door or inner chamber during operation is prohibited.

• Open the door sideways at high temperature: slightly open first for heat dissipation, then fully open.

• Use special high-temperature resistant gloves and clamps for sample handling; bare-handed operation is forbidden.

• Set up a warning area for equipment just shut down to prevent accidental contact and scalding by unauthorized personnel.

2.3 Explosion and Splash Accident Prevention

• Sealed glass bottles, canned liquids and pressurized components are strictly prohibited from direct baking. Open placement and reserved pressure relief space are required.

• For flammable and explosive samples such as batteries, cells and chemical powders, explosion-proof high-temperature ovens must be used, equipped with hydrogen/carbon monoxide monitoring, independent pressure relief and emergency exhaust functions.

• Vacuum ovens shall strictly follow the procedure: "vacuum first, then heat up; cool down first, then break vacuum" to prevent burst caused by excessive internal and external pressure difference.

• Place liquid samples in trays to avoid tilting and leakage, preventing high-temperature splashing injuries.

2.4 Electrical Safety Accident Prevention

• The equipment must be reliably grounded. Regularly inspect the insulation of power cords and terminals to prevent electric leakage and short circuits caused by aging or damage.

• Supply power according to rated power strictly. Unauthorized wiring and overloaded operation are prohibited to avoid tripping or fire.

• Keep the operating environment dry. Do not operate with wet hands or rinse the electric control cabinet with water.

• Keep the emergency stop switch unobstructed. Cut off power immediately in case of electrical abnormality; live maintenance is prohibited.

2.5 Equipment Failure and Damage Prevention

• Establish a hierarchical maintenance system: clean air ducts and filters monthly, calibrate temperature, humidity and safety devices quarterly, and conduct comprehensive inspection of heating, fan and control systems annually.

• Operation over temperature, overload or over weight is strictly prohibited. Forcible modification or disassembly of core components is not allowed.

• Replace worn parts such as sealing gaskets, sensors and heaters with original accessories in a timely manner.

• For long-term shutdown, run without load monthly to maintain component activity and prevent moisture damage.

2.6 Emergency Response Measures

• Over-temperature / Alarm: Immediately press emergency stop, cut off power, close the chamber door, and troubleshoot after cooling.

• Fire Danger: Cut off power immediately, extinguish with dry powder fire extinguisher. Do not open the door to supply oxygen. Alarm promptly if the fire spreads.

• Scald Accident: Rinse the burned area with running clean water immediately. Seek medical treatment in case of severe injury.

• Explosion / Leakage: Evacuate personnel quickly, cut off power and air supply, enhance ventilation, and allow professionals to handle the scene.

• Electric Leakage / Shock: Turn off the main switch immediately. Do not touch the injured person or equipment with bare hands. Administer first aid and contact a professional electrician.

3. Daily Management Requirements

• Organize regular safety training and emergency drills to improve operators’ risk prevention and emergency response capabilities.

• Implement dedicated personnel management, regular calibration and maintenance records for equipment to ensure safety devices remain effective at all times.

• Develop special safety plans separately for non-standard working conditions and dangerous goods baking; illegal operations are strictly prohibited.

• Contact the official after-sales service of Lab Companion promptly for complex equipment failures. Unauthorized disassembly by non-professionals is prohibited.