Electric blast Drying Oven 101 series operation instructions

(1) Instructions for use

1. Before turning on the power, please make sure that the switch is set to the "off" position, and check whether there is an open circuit or leakage.

2. Because there will be a slight smoking process when heating for the first time, it is recommended not to put the sample before the official use, close the door, unscrew the exhaust cover on the top of the box, turn on the electric heating switch, the blower switch, the indicator light is on, Put the heating switch on the "slow" gear, set the temperature controller at 100°C, and the temperature inside the box will start to rise. When the temperature rises to 100°C, the temperature controller will automatically maintain the temperature, and then you can cut off the power supply, open the door to dissipate heat and loose smoke.

3. When in official use, first put the sample on the shelf, close the door, unscrew the exhaust cover on the top of the box, and after connecting the power supply, turn on the electric heating switch and the blowing switch. You can choose to heat up quickly or slowly when using. Then set the temperature controller to the required temperature, and then the temperature inside the box starts to rise. When the temperature is constant, the heating gear should be set to the "slow" gear, so as to ensure the fluctuation of the constant temperature and the uniform temperature in the box.

4. The sample should not be placed too crowded during use, so as not to affect the convection in the box. When placing the box, please ground the box effectively according to the regulations to ensure safe use. Do not touch the electrical circuit on the left side of the box with your hands or wet cloth when the power is on.

5. When the temperature rises, please do not splash water on the observation window of the box door to prevent the glass from bursting due to cold.

6. This series of Drying Ovens are non-explosion-proof products.

7. Please do not put volatile, flammable and explosive items into the box for heating to prevent explosion.

Electric Forced Air Drying Oven 101 Series Operating Instructions with Figure 1

(two), maintenance and repair:

Daily maintenance of equipment:

1. The drying box should always be kept clean. The door glass should be wiped with a soft cotton cloth. Do not wipe with corrosive chemical solutions to avoid chemical reactions and scratches on the glass.

2. If the drying box is not used for a long time, it should be coated with neutral grease or vaseline on the electroplated parts to prevent corrosion, and put a plastic film dust cover on it, and put it in a dry room to prevent the electrical appliances from being affected by moisture.

3. Daily maintenance of equipment:

When you operate according to our manual, if there is equipment failure, please follow the following troubleshooting methods for preliminary troubleshooting; if you fail, please call the after-sales service department of our company, and we will wholeheartedly provide you with timely and accurate services.

Equipment failure phenomenon and failure analysis and solution:

Symptoms	Failure analysis and solution
1. Plug in the power and turn on the power switch equipment without response	＊Please ask an electrician to help solve the problem of power supply. ＊The electric heating tube is burnt out, you can measure the resistance value at both ends of the electric heating tube with a multimeter in the "ohm" range. If the resistance value is 0, it means that the electric heating wire is short-circuited, which means that the switch always trips; if the resistance value is several hundred thousand ohms or infinite, then Indicates that the heating wire is blown, that is, an open circuit. ＊The plug of the power switch fell off. ＊When the power switch is on, you can check the control circuit board and corresponding connecting wires.
2. The temperature cannot rise	＊Check whether the timing has reached the set value; ★Most users don’t understand this function. When the timing reaches the set value, the heating tube will not work and the fan will not turn, resulting in no heating and the temperature will not go up. . * Check the circuit control board, use a multimeter to measure whether there is output, and check according to the drawing; (the drawing is attached).
3. The motor does not run	＊Results: There is heating, but the air volume of the inner tank cannot circulate, causing the temperature to rise slowly. Check whether the fan is running. If it is broken (you can use a multimeter to measure whether there is 220V voltage at the two ends of the fan pin), then notify the company to mail the accessories to solve it.
4. The handle is damaged	＊Notify the company of replacement processing
5. There is a difference between the temperature displayed on the control panel and the temperature measured by the mercury thermometer in the box	Judgment premise: 1. The thermometer needs to be measured after passing the inspection by the testing department. 2. The measurement installation position of the mercury thermometer: please suspend the thermometer in the center of the inner cavity, and it cannot be directly placed on the shelf for measurement. ＊Refer to the attached parameter adjustment table.
6. The temperature display appears to be jumping or standing still, or abnormal such as "□□□"	＊It can be judged that there is a problem with the temperature sensor, and it can be replaced to solve it. Remarks: The sensor uses Pt100 platinum resistance, and the wire ends are two blue and one red.

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