Лабораторная высокотемпературная программируемая небольшая металлическая керамическая муфельная

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laboratory high temperature programmable small metal ceramic muffle furnace

The muffle furnace is a universal heating equipment, which can be divided into box furnace, tube furnace and crucible furnace according to its appearance.

The muffle furnace is a cyclic operation type. It is used for the element analysis and determination of laboratories, industrial and mining enterprises, and scientific research units and for heating during the quenching, annealing and tempering of general small steel parts. The high-temperature muffle furnace can also be used for the sintering, dissolution, analysis and other high temperature heating of metals and ceramics.

Working Principle

The working principle of the box-type high-temperature sintering furnace (SX2 series): After the temperature measuring element thermocouple converts the temperature into an electrical signal (voltage), it is connected to the microcomputer temperature controller. The temperature controller compares this signal with the programmed value, and then the microcomputer generates a control signal that reflects the temperature change of the furnace after calculating the difference, the positive and negative values, and the time. Use this signal to drive electrical components (power modules, solid-state relays, AC contactors, etc.) to achieve the purpose of controlling the furnace temperature. The high-precision PID program is used to automatically control the entire process and digitally display the furnace temperature and process information.

According to the different heating elements used, three temperature ranges are reached, namely 1200℃ 1400℃, and 1700℃. At 1200℃, molybdenum-containing resistance wires are used as heating elements. At 1400℃, silicon carbide rods are used as heating elements. At 1700℃, silicon molybdenum rods are used as heating elements.

Product Application

(1) Thermal processing, industrial workpiece processing, cement, building materials industries, and thermal processing or treatment of small workpieces.

(2) Pharmaceutical industry: used for drug inspection, pretreatment of medical samples, etc.

(3) Analytical chemistry industry: as sample processing in water quality analysis, environmental analysis and other fields. It can also be used for petroleum analysis.

(4) Coal quality analysis: used to determine moisture, ash, volatile content, ash melting point analysis, ash composition analysis, element analysis. Can also be used as a general ashing furnace.

Product Features

1. 30-segment intelligent temperature control regulator, PID control, temperature control accuracy is ±1 degree.

2. The temperature upper limit alarm can be set, and the main circuit can be automatically cut off when the temperature exceeds the upper limit.

3. Using high-purity alumina ceramic fiber as the furnace material, and the thermal insulation effect is good.

4. Different furnace chamber sizes can be customized according to customer requirements.

5. Simple air inlets, exhaust outlets and observation windows can be added according to customer requirements.

Product Parameters

Model	Maximum temperature(℃)	Furnace size(mm)	Input power(V/KW)
SX2-1-12TP	1200℃	100X100X100	220V/1KW
SX2-2-12TP	1200℃	200X150X150	220V/2KW
SX2-6-12TP	1200℃	300X200X200	220V/6KW
SX2-9-12TP	1200℃	400X300X300	220V/9KW
SX2-2-14TP	1400℃	100X100X100	220V/2KW
SX2-4-14TP	1400℃	200X150X150	220V/4KW
SX2-7-14TP	1400℃	300X200X200	220V/7KW
SX2-16-14TP	1400℃	400X300X300	380V/16KW
SX2-2-17TP	1700℃	100X100X100	220V/2KW
SX2-4-17TP	1700℃	200X150X150	220V/4KW
SX2-9-17TP	1700℃	300X200X200	380V/9KW
SX2-16-17TP	1700℃	400X300X300	380V/16KW

 

Product Classification

1. According to the heating elements, it is divided into: electric furnace wire muffle furnace, silicon carbide rod muffle furnace, silicon molybdenum rod muffle furnace.

2. According to the operating temperature, it is divided into: low temperature muffle furnace (electric furnace wire muffle furnace below 1000℃), medium temperature muffle furnace (silicon carbide rod muffle furnace 1100 ~ 1300℃), high temperature muffle furnace (silicon molybdenum rod muffle furnace 1700℃).

3. According to the insulation materials, it is divided into two types: ordinary refractory brick muffle furnace and ceramic fiber muffle furnace.

Product Advantages

1.Adopt advanced AI artificial intelligence adjustment algorithm, no overshoot, with self-tuning function, can realize any slope rise and drop temperature control, with jump (cycle), run, pause, stop and other programmable/operable commands.

2.The input and output adopt digital correction system, the measurement is accurate and stable, and it can be extended to use non-linear sensors with any index number.

3.The second-order digital filtering function and watchdog circuit can maintain accurate measurement and stable work even in a strong interference environment.

4.Measurement accuracy: 0.2 level

5.Alarm function: upper limit, input open circuit.

6.30/50 segment program control function.

7.Power-down protection: Due to the EPROM chip, various input data can be reliably saved even when the meter is powered off or interfered.

8.Power supply: 100 ~ 240VAC 50 ~ 60Hz

9.Power consumption: ≤ 5W

Common Faults and Solutions

Failures	Causes	Solutions
Turn on the control power switch LOCK, but no power indication	The fuse of control line FU1 2A is broken	Check whether there is short circuit, and replace the fuse after elimination
The green POWER indicator is off, and the red OPEN CIRCUIT indicator is on.	The fuse of main circuit FU2 32A is broken	Check whether there is short circuit, and replace the fuse after elimination
Maximum voltage, but no current.	Resistance wire fracture	Replace the electric furnace wire
Meter SV alternately displays Oral	Thermocouple break	Replace the thermocouple
Meter SV alternately displays HIAL	The furnace body exceeds the upper limit temperature	When the temperature drops to the safe temperature, the meter automatically returns to normal (check the cause of overtemperature)
Power supply and resistance wire are normal, but the furnace body can not be heated	The control circuit is damaged	Inform professional maintenance personnel

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