1200°C Pneumatic Top-Opening Box-Type Electric Furnace for Laboratories

GWL-1200XL

See the drawing for details

380V; 50HZ

Maximum operating temperature

Maximum service temperature

1200 degrees

1200 degrees

Long-term operating temperature

Can be used for a

long time temperature

1150 degrees

1150 degrees

The control range is

Control range is

100 to 1200 degrees

100 to 1200 degrees

Temperature sensing element

temperature measurer

Thermocouple type K, temperature range 0-1320 degrees Celsius

ThermocoupleindexnumberK,temperaturerange0- 1320degrees

Heating element

heater element

High-temperature alloy resistance wire

High temperature alloy resistance wire

Heating element mounting position

Location of Heating element

Three-sided heating, with additional heating on both sides and bottom.

Heat on three sides, add the bottom on both sides

Temperature control accuracy

Temperature

control accuracy

±1 degree (integrated circuit control, no overshoot)

±1 degree (integrated circuit control, no overshoot)

Furnace temperature uniformity

Furnace temperature

uniformity

±1 degree (depending on the size of the furnace; larger furnaces can use multi-point control to achieve better furnace temperature uniformity).

±1degree (depending on the size of the furnace, multi-point control can be used in large furnaces to achieve better furnace temperature uniformity)

heating rate

heating rate

The heating rate is freely adjustable, with the following range: fastest heating rate 40 degrees per minute (non-linear), slowest heating rate 1 degree per hour (non-linear).

The heating rate can be freely adjusted, the adjustment

range: the fastest heating rate of 40 degrees per minute (non-linear), the slowest heating rate of 1 degree per hour (non-linear)

furnace body

The furnace body is machined using CNC machine tools and undergoes polishing, grinding, pickling, phosphating, powder coating, and high-temperature baking. It features a two-tone design, a novel and attractive appearance, and boasts advantages such as oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning .

Thefurnacebody is processed by CNCmachinetool, andismade by polishing, polishing, pickling, phosphating, spraying plastic powder, high temperature baking, etc. The two-color combination has beautiful appearance, and has the advantages of oxidation resistance, acid and alkali resistance

corrosion resistance, high temperature resistance, and easy cleaning.

Furnace body structure

furnace binding

The electric furnace body adopts an advanced air-cooled double-layer furnace body structure, ensuring a good working environment.

The electric furnace adopts the advanced air-cooled double-layer furnace structure to ensure a good working environment.

Furnace door opening method

How the furnace door opens

Electric top-opening door + foot pedal control panel

Electric upper door + pedal control panel

Refractory matter

The furnace lining uses vacuum-formed high-purity alumina fiber lightweight board material. The parts prone to material handling (furnace bottom) use high-purity lightweight hollow spherical alumina plates. It has high operating temperature, low heat storage, resistance to rapid heating and cooling, no cracking, no slag shedding, and good heat preservation performance (energy saving effect is more than 80% of that of old-style electric furnaces ).

The furnace lining is made of vacuum forming high-purity alumina fiber polylight plate material, and the material is easy to touch (the bottom of the furnace) is made of high-

purity lightweight hollow ball aluminum oxide plate, which has high temperature, small heat storage, resistance to acute heating and cooling, no cracks, no slag, and good thermal insulation performance (energy saving effect is more than 80% of the old electric furnace).

thermal insulation materials

thermal insulation material

It adopts four layers of insulation: alumina fiber cotton, alumina fiber board, and alumina polycrystalline fiber board. It uses imported materials and its energy-saving effect is more than 80% of that of old-fashioned electric furnaces .

Using four layers of insulation, respectively: alumina fiber cotton, alumina fiber board, alumina polycrystalline fiber board, imported materials, energy saving effect is more than 80% of the old electric furnace.

Furnace shell temperature

Furnace shell temperature

For long-term use without shutting down the furnace, the outer casing temperature should be less than 45 degrees Celsius .

Long-term use of non-stop furnace, shell temperature is less than 45 degrees.

Protect

protect

The system employs an integrated modular control unit, ensuring accurate control precision. It also features dual- loop control and dual-loop protection, providing protection against overshoot, over-adjustment, under-adjustment, thermocouple breakage, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start.

The integrated module control unit is adopted, the control precision is accurate, and the double circuit control and double circuit protection are designed, with overshoot, overshoot, undershoot, segment pair, phase loss, overvoltage, overcurrent, overtemperature, current

feedback, soft start and other protection.

control

control

Employing closed-loop technology with thyristor module trigger control, phase-shift trigger control, or zero-crossing triggering, the output voltage, current, or power is continuously adjustable, exhibiting constant voltage, constant current, or constant power characteristics. The current loop is the inner loop, and the voltage loop is the outer loop. When a sudden load is applied or the load current exceeds the current limit, the output current of the voltage regulator is limited to the rated current range, ensuring normal operation of the output and the voltage regulator.

Simultaneously, the voltage loop also participates in the regulation, limiting the output current of the voltage regulator to the rated current range, and maintaining the constant output current and voltage with sufficient adjustment margin; thereby protecting the heating element from excessive current and voltage impact, achieving a safe and reliable control effect and control accuracy.

Closed-loop technology thyristor module trigger control, phase-shift trigger control or zero-crossing trigger mode, output voltage, current or power continuously adjustable, with constant voltage, constant current or constant power characteristics; The current ring is the inner ring, and the voltage ring is the outer ring. When the load is suddenly added or the load current exceeds the current limit value, the output current of the regulator is limited to the rated current range to ensure that the output and the regulator work normally. regulation, so that the output current of the regulator is limited within the rated current range,

and the output current and voltage are maintained under the premise of sufficient adjustment margin. Thus to protect the heating element from excessive current and voltage impact, to

achieve safe and reliable control effect and control accuracy.

Display parameters

Display parameter

Temperature, temperature range number, time interval, remaining time, output power percentage, voltage, current, etc.

Temperature, temperature segment number, segment time, remaining time,percentage of output power, voltage, current, etc

button​

The imported button has a service life exceeding 100,000 uses and includes an LED indicator.

100,000 times, and has an LED indicator.

curve setting

Employs an intelligent temperature controller with standard PID control. Artificial intelligence adjusts APID or MPT It features multiple adjustment modes, self-tuning and self-learning functions, excellent control characteristics with no overshoot and no undershoot, and a 30... The segmented program control function can realize temperature rise and fall control with arbitrary slope, and has programmable / operable commands such as jump (loop), run, pause and stop, and allows modification of the program at any time during program control operation; it adopts an artificial intelligence adjustment algorithm with curve fitting function to obtain a smooth curve control effect .

Adjustment methods, with self-tuning, self-learning function, no overshoot and no undermodulation of excellent control characteristics, with 30 program control function, can achieve any slope of rise and drop temperature control. It has programmable/operable commands such as jump (loop), run, pause and stop, and modification allows of the program at any time during the control operation of the program; Using

artificial intelligence adjustment algorithm with curve fitting function, smooth curve control effect can be obtained.

Number of segments in the heating curve

50 segments, and the input settings are as follows: 50 segments for one curve , 28 segments for two curves , 15 segments for three curves , and 9 segments for five curves ; multiple curves can be input simultaneously and can be called up at will during use.

50 segment program control function, you can input Settings: one curve for 50 segments, two curves 28 segments/section, three curves 15 segments/section, five curves 9

segments/section; Multiple curves can be entered at the same time, and can be called arbitrarily when

used.

Number of

temperature rise curve segments

One electric furnace, two heating elements, two sets of rods, one crucible tongs, one pair of high-temperature gloves, one instruction manual, one certificate of conformity, one acceptance report (factory inspection report), and one sales delivery note.

Packing list

packing list

Warranty coverage and period

Warranty coverage and

Precautions

Notes

1. To avoid affecting the lifespan of the electric furnace, we recommend a maximum heating and cooling rate of 10-20℃/min (too rapid heating will shorten the lifespan of the heating element).

2. This electric furnace does not use a vacuum-sealed structure, so flammable and explosive gases must not be introduced.

3. After a period of use, minor cracks may appear in the furnace chamber of this electric furnace. This is normal and will not affect its use. It can be repaired with an alumina coating.

4. It is not recommended to introduce corrosive gases. If it is necessary to introduce a highly corrosive gas such as sulfur dioxide, please do so .

or other substances such as Na , so that we can perform special treatment on the furnace.

5. High-temperature solution must not leak onto the furnace bottom. To prevent this, a pad or alumina powder can be used for isolation.

6. The instrument should be placed in a well-ventilated, dry place.

1, in order not to affect the service life of the electric furnace, we recommend the maximum heating rate and cooling rate of 10- 20℃/min, (heating too fast heating element life will be shortened)

2. This electric furnace does not have a vacuum sealing structure, so flammable and explosive gases cannot be passed into it

3. After the electric furnace is used for a period of time, there will be small cracks in the furnace, which is a normal phenomenon and will not affect the use of the furnace, and it can be repaired with aluminum coating

4, it is not recommended to enter corrosive gases, if you want to enter highly corrosive gases such as S, Na, etc., please inform us in advance, we will carry out special treatment of the furnace

5, can not leak the high temperature solution to the bottom of the furnace, avoid the solution can use the pad or aluminum oxide powder isolation

6, the instrument should be placed in the air circulation, not humid place.