Screen printing oven, heating automatically jumps

1. When the set temperature is reached, the contactor jumps and stops heating.

2. Check the circuit to see if there is a short circuit touching the line.

3. In addition, whether the heating and fan are interlocked.

The shell of the oven is generally made of thin steel plate, the surface is painted, and the studio is made of high-quality structural steel plate. The housing is filled with aluminium silicate fibers between the enclosure and the studio. The heater is mounted on the bottom, or on top or on both sides.

The temperature control instrument adopts a digital display smart meter, PID adjustment: the hour time controller is configured and connected to the alarm device. It makes the operation of the oven easier, faster and more effective.

1.Before use, it is necessary to pay attention to whether the power supply voltage used can be compliant. When operating, it is necessary to stop grounding the power socket grounding wire according to the rules.

2.When the power is on, do not touch the electrical part of the left space of the box with your hands or wipe it with a damp cloth and rinse it with water, and the power supply should be cut off during the inspection.

3.The power cord should not be wound around metal objects, and should not be set at low temperature or wet ** to avoid leakage caused by rubber aging.

4.Do not overcrowd the contents of the box, and leave room for natural convection of the atmosphere, so that the moist atmosphere can slow down and escape on the wind top.

5.If so, the contacts can be smoothed with fine gauze before use, and should be wiped with a clean cloth to make the contact good (note that the power supply must be cut off). Do not hit the metal pipes of the room temperature conditioner to avoid affecting the flexibility.

6.Do not put flammable materials in the boring box without explosion-proof installation.

7.After each use, the power supply must be partially cut off, and the inside and outside of the box must always be clean.

The oven heater is jointly controlled by the temperature controller, the supporting protection circuit, and the heating pipe connected to the electrical appliances.

Check the temperature controller settings as well as status indication, set value, target value, over-temperature alarm action value, and action type.

Check if the overtemperature protector is working properly.

Check whether there is a fault in the supporting electrical components such as AC contactors, solid state relays, intermediate relays, time relays and other electrical components.

ENOHK Oven Professional Manufacturer Friendly Reminder).

1.Use a clamp ammeter to check the starting current when heating up, the current of the heating tube, calculate the resistance, and if there is a motor, check the motor current. The main thing is to check whether the oven is abnormal, the short circuit of the heating pipe or the short circuit of the motor may cause tripping, and there is a motor failure, resulting in excessive current and tripping.

2.The air opening configuration is too low, or the air opening is faulty, and now the weather is hot, the temperature is high, and the air opening configuration is low, and it is easy to trip. Leakage, or tripping caused by overload, if it is suspected that it is a problem with the water machine, you can roughly judge it with a multimeter.

Unplug the water dispenser, turn on the water dispenser switch, and use the multimeter to measure the resistance between the two plugs (do not measure the grounding terminal) to the metal shell of the water dispenser, as long as there is obvious resistance, it means that there is a problem with the water dispenser. For high-power water dispensers, both the line and the heating wire should be tested. The resistance value measured by a megohmmeter should be above the ohm to be considered normal.

It is possible that the trip is caused by leakage.

There is a temperature control switch on the wall of the heating pipe behind the oven electrical box, which generally limits the temperature to a maximum of 110 degrees. If the element is not accurate, it may only rise to 90 degrees, and the general oven cannot add 130 degrees, and there is generally a label on the outside of the oven that says the maximum temperature of 110 degrees

Is the temperature control good, check if there is any problem with the tube.

It depends on how you set it, generally speaking, after the temperature rises to the set temperature, it will automatically keep the temperature, which means that the temperature is basically constant.

If it is used with a time relay, when the time is up, it will automatically stop heating, and it will naturally cool down.

If you have any questions, you can contact Wujiang Haochen Oven Manufacturing Factory.

When the heating temperature arrives, you don't set the insulation, of course it cools down.

I feel that there is a temperature protection inside, and when it reaches 173, the heating will automatically stop, so I recommend talking to the equipment manufacturer.

Well, if the set temperature is mechanical. The Xuanyao is only an approximate temperature, and if it is electronic, it will be more accurate. When it reaches the set temperature, it is basically disconnected and not heated.

1 by the fault phenomenon. Identify parts that may be damaged. 2. Disassemble the parts that may be faulty. 3. See, smell, hear, and measure the condition of the fault part and compare it with the normal state to determine the loss of the device. 4. Replace or repair damaged parts.