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Daily Maintenance and Precautions of Laboratory Drying Ovens

Drying ovens are commonly used for drying, baking, melting, and sterilization of industrial and mining enterprises, laboratories, and research institutes. Henan Lanphan adopts high-tech technology microcomputer intelligent temperature control system, which has the characteristics of temperature control protection, correct and reliable. The working temperature is arbitrarily set, and has a deviation alarm function, the air inlet switch is free, and the hot air circulation is cycled. I carefully cleaned up the daily maintenance and cautions of laboratory drying oven and shared it with you.

Laboratory Drying Ovens 

Laboratory Drying Ovens

  • I. Daily Maintenance of Laboratory Drying Ovens

1. Be sure to check if the power supply voltage matches before using. When using, it is necessary to ground the power outlet ground wire according to the regulations.

2. When using the power supply, avoid touching the electrical department in the space on the left side of the box or using a damp cloth and water. The power should be blocked during the inspection.

3. The power cord should not be wrapped around metal objects. It should not be placed in a hot or humid place to prevent the rubber from aging and causing leakage.

4. Do not over-extrude the contents of the laboratory drying oven. It is necessary to leave room for natural convection of the air so that the humid air can accelerate out on the wind top.

5. Check if the contact of the temperature regulator is hairy or uneven, if necessary, sand the contact with a fine gauze before using. Always wipe with a cleaning cloth to make it in good contact (be aware of the need to block the power supply). Do not hit the metal pipe of the indoor temperature regulator to avoid agility.

Laboratory Drying Ovens 

Laboratory Drying Ovens

1. Explosive, flammable and volatile materials should not be placed in the laboratory drying oven to avoid explosion.

2. The uniform load of the sample shelf should not exceed 20kg.

3. Items cannot be placed on the shelf between the sample chamber and the heating chamber to avoid affecting heat exchange.

4. Be sure to check the nickel wire for overlap and short circuit before using.

5. The heating indicator does not light up. There are generally three reasons: 1 the bulb is broken; 2 the bulb is in poor contact; 3 the heating system is faulty.

6. Turn on the heating switch and do not heat it.

There are generally four reasons:

(1)nickel-chromium wire breaking

(2)switch and line desoldering

(3)temperature control knob refers to zero position (rotation temperature control knob to the specified temperature scale)

(4)relay damage.

7. Temperature control is out of order.

There are generally three reasons:

(1)temperature probe damage (replacement of thermistor)

(2)relay damage

(3)other components of the temperature control system failure (using a universal meter to detect the fault, repair according to circumstances).

Laboratory Drying Ovens 

Laboratory Drying Ovens

  • III. Protection and Repair of Laboratory Drying Ovens

1. The using of the instrument should be handled by a special person. When the equipment is used, the external power supply should be blocked to avoid accidents.

2. When placing the sample in the workroom, it should not be too dense, so as not to affect the normal activities of the airflow in the working room. There must be a gap of 10-20 mm between each item, and it should be placed symmetrically. The items on each shelf should be staggered. The interval between the shelf and the bottom of the studio must be more than 100mm.

3. A certain space should be left near the equipment to facilitate heat dissipation and operation and maintenance.

4. Prevent sharp and sharp objects from scratching the device.

5. Do not disassemble the electrical components and parts of the equipment at will, so as not to damage the electrical control circuit, causing human error of the equipment and affecting its function.

6. Before using, please check whether the power supply voltage matches the rated voltage of the drying oven to avoid unnecessary damage.

7. Do not place the drying oven in a corrosive environment containing acid or alkali to avoid damage to electronic components.

8. When carrying the box, try to be as light as possible to avoid loosening of the internal electrical circuit contacts after severe vibration.

9. Pay attention to protect the exterior paint surface of the drying box, otherwise it will not only affect the appearance of the outer shape of the box, but more importantly, it will shorten the life of the drying oven.

Laboratory Drying Ovens 

Laboratory Drying Ovens

  • In order to allow the user to repair the general failure of the box, the following describes some troubleshooting methods when the fault occurs.

1. After the drying box is connected to the power supply, the green indicator light is on. After a period of time, there is no heating phenomenon. At this time, it is necessary to check whether the heating wire connector at the bottom of the box is loose or blown, and if necessary, replace the heating wire.

2. If the green indicator light is off after the power is turned on, there is no contact connection sound. It should be checked whether the voltage used is the same as the model of the machine, or whether it has been transported to cause the wire connection to fall off.

The above mentioned text is a brief introduction to daily maintenance and cautions of laboratory drying oven. If you want to know more the drying oven, please contact with henan lanphan. Henan lanphan is a qualified company, which boasts good reputation both home and abroad. For several years, we are dedicated to the manufacture of laboratory equipment and pipe fittings. If you want to know more more about this or possess the intention to buy it, please contact with us as soon as possible. We are willing to provide you as much information as possible. Our email address is the [email protected]

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