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RLH-401 Model

Thermal Air Aging Test Chamber

User Manual

I. Overview

The thermal aging chamber is a product designed and manufactured according to national standards, featuring advantages such as customizable size, lightweight construction, excellent thermal insulation performance, and more. It includes automatic cold-end compensation, superior vibration and interference resistance, as well as precise automatic temperature control—delivering high accuracy in both temperature measurement and regulation.

This chamber provides high-temperature operating conditions for industrial production and research institutions, primarily used for thermal air aging tests of rubber, roll materials, wires and cables, and plastic specimens.

II. Structural Description

This chamber features a cabinet made from cold-rolled steel plates. The space between chambers is filled with high-quality aluminum silicate fiber cotton and asbestos boards, serving as an insulation and heat-retention layer. The electric heater utilizes a DRB wave-shaped carbon-silicon far-infrared radiator, delivering remarkable energy-saving performance. Additionally, a built-in blower has been added to enhance automatic air circulation, ensuring more balanced convection within the chamber. A digital display controller manages all programmed functions, while the internal temperature is clearly shown in numerical form.

III. Technical Specifications

1. Power supply: 220V

2. Power: 2.5 kW

3. Internal dimensions: 45 × 45 × 55, turntable speed: 5–10 r/min

4. Controllable Temperature: Room Temperature to 200°C, Accuracy: ±1°C

5. Instrument external dimensions: 83 x 66 x 136 cm,

6. Volume weight: 0.96 cubic meters, 57 kg

IV. Instructions for Use

(1) Connect all the leads of the aging chamber properly, place the test specimen inside, and use a megohmmeter to verify that the insulation resistance is greater than 2 megohms.

(2) Adjust the setting button on the instrument to the desired temperature. If it’s a digital display, simply enter the number corresponding to your desired temperature until the correct value is reached.

(3) Connect the power supply and turn on the power switch. At this point, the green light will illuminate, indicating that heating has begun. Simultaneously, activate the automatic speed-control blower; you can adjust the fan speed, and the rotating disc will move accordingly.

(4) Once the workshop reaches the desired temperature, the temperature controller will operate in a constant-temperature mode.

(5) After using the instrument, release all the hot air from the chamber, return all switches to the OFF position, disconnect the power supply, and wipe dry with a cloth.

V. Product Applications

The thermal aging chamber can be used to evaluate and determine the adaptability of electrical and electronic products or materials when stored and used under high-temperature aging conditions caused by cyclic temperature changes on their surfaces. The equipment employs forced air circulation to ensure uniformity of temperature throughout the working chamber.

VI. Important Notes

When using a new aging chamber or after prolonged periods of disuse, inspect it for any damage and perform an insulation resistance test. The insulation resistance between each live part and the enclosure, as well as between phases, should exceed 2 megohms. Ensure that the aging chamber is securely connected to the power supply; otherwise, poor contact could lead to damage. Additionally, never place flammable materials inside the chamber to prevent potential accidents.

7. Troubleshooting

Company Profile

Hebei Yinfeng Experimental Instrument Co., Ltd. is a high-tech enterprise dedicated to the research and development, production, and sales of experimental instruments. The company is headquartered in Hebei Province, relying on the strong industrial foundation and technological innovation resources in the Beijing Tianjin Hebei region. It is committed to providing high-precision and high reliability testing equipment and solutions for material testing, engineering quality control, scientific research experiments and other fields.

Customized Delivery Process

We provide customers with full-process services ranging from pre-sale consultation, customized solution design, equipment installation and commissioning to after-sale technical support.

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TJSS-III Type Automatic Cement Standard Curing Water Tank

RLH-401 Type Hot Air Aging Test Chamber

Instruction Manual for RLH-401 Thermal Air Aging Test Chamber I. Overview The thermal aging chamber is designed and manufactured in accordance with national standards. It features adjustable dimensions, lightweight construction, excellent thermal insulation performance, and a host of other advantages. Equipped with automatic cold-end compensation, the chamber boasts superior vibration and interference resistance. Temperature measurement and control are fully automated, ensuring high precision in both temperature sensing and regulation. This chamber provides high-temperature testing conditions for industrial production and research institutions, making it ideal for conducting thermal air aging tests on rubber, roll materials, wires, cables, and plastic specimens. II. Structural Description The chamber is constructed with a cabinet made from cold-rolled steel plates. The working space is filled with aluminum silicate fiber cotton and asbestos boards, serving as an effective insulation and heat-retention layer. The electric heating element utilizes a DRB-type carbon-silicon far-infrared radiator, delivering significant energy-saving benefits. A built-in blower enhances air circulation, ensuring more uniform convection within the chamber. Temperature control is managed via a digital display controller, which clearly shows the current temperature inside the chamber. III. Technical Specifications 1. Power Supply: 220V 2. Power Rating: 2.5 kW 3. Internal Dimensions: 45 × 45 × 55 cm 4. Rotating Tray Speed: 5–10 rpm 5. Controllable Temperature Range: Room Temperature to 200°C, with Accuracy of ±1°C 6. External Dimensions of Instrument: 83 × 66 × 136 cm 7. Chamber Volume & Weight: 0.96 cubic meters, 57 kg IV. Operating Instructions (1) Connect all grounding wires of the aging chamber properly. Place the test samples inside and use a megohmmeter to verify that the insulation resistance exceeds 2 MΩ. (2) Adjust the temperature setting on the instrument’s control panel to the desired level. If using a digital display model, simply input the target temperature through the keypad. (3) Turn on the power supply and activate the main power switch; the green indicator light will illuminate, signaling that heating has begun. Simultaneously, activate the automatic-speed-adjustable blower, allowing you to fine-tune the airflow. The rotating tray will also start moving along with the blower. (4) Once the chamber reaches the set temperature, the temperature controller will maintain a constant temperature environment. (5) After completing the test, release any remaining hot air from the chamber. Then, return all switches to their OFF positions, disconnect the power supply, and wipe the interior dry with a cloth. V. Application Scope The thermal air aging chamber is specifically designed to evaluate and determine the adaptability of electrical and electronic products—or their constituent materials—under cyclic temperature changes and prolonged exposure to high-temperature aging environments. The equipment employs forced-air circulation to ensure uniform temperature distribution throughout the working space. VI. Precautions Before using a new or long-unused aging chamber, thoroughly inspect it for any signs of damage. Conduct an insulation resistance test, ensuring that the insulation resistance between live components, the chamber casing, and between phases exceeds 2 MΩ. Verify that the chamber’s power connections are secure, as loose connections may lead to overheating or even equipment failure. Additionally, never place flammable materials inside the chamber to prevent potential hazards. VII. Troubleshooting

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