Adopting imported microcomputer intelligent controller, fully digital PID intelligent regulation function, expert function without user debugging, equipped with RS485 interface for direct connection to computer, realizing data and curve recording, export, printing and network query functions, BTC balance temperature control system.

External pressure bearing box structure, stainless steel inner liner, cold-rolled steel plate shell coated with polyurethane orange paint.

1、 Main technical parameters:

1. Temperature range: 20.0-400.0 ℃

2. Volatility: ± 0.5 ℃

3. Uniformity: ± 3.5%

4. Heating rate: less than 100 minutes from room temperature to 400 ℃

5. Pressure range: atmospheric pressure to 20.0kPa

6. Pressure reduction rate: atmospheric pressure to 20.0 kPa, time ≤ 40 minutes

7. Pressure recovery rate: 10 kPa/min (adjustable)

8. Pressure error:

a. ≥ 40 kPa ±2.0 kPa

b. 4kPa ≤ pressure<40kPa ± 5% kPa

c. ≤ 4kPa ±0.1 kPa

9. Temperature deviation of temperature/pressure comprehensive test:

a. ± 3.0 ℃ when ≥ 10 kPa

b. 4kPa ≤ pressure<10kPa ± 7.0 ℃

c. ≤ 4.0kPa ±10.0℃

10. Wind speed: ≤ 1.7m/s

12. Machine noise: ≤ 80db

13. Power supply: AC 380V/50Hz three-phase four wire system

2、 Structure and material configuration:

1. Pressure bearing material: cold-rolled thick steel plate coated with polyester orange paint, using an external pressure bearing box structure, with an overall pressure bearing strength greater than 10T/㎡

2. Inner liner: stainless steel, capable of withstanding a pressure of 20kg

3. Shell: Cold rolled thick steel plate coated with polyester orange paint

4. Gate: Square gate, using high-temperature resistant silicone rubber vacuum sealing strip

5. Insulation layer: polyurethane foam+glass fiber, with a thickness of 100mm

6. Observation window: 1, vacuum coated anti frost, high-strength pressure resistant tempered glass observation window, size (width) 300 × (height) 300mm

7. Box: Five 3/8 internal threaded holes are opened on the flat surface of the box to facilitate the external threads of the product to be screwed into a depth of 2cm

8. The charging interface is determined by the user

3、 Heating system:

1. Heating component: Armored stainless steel flat plate electric heater

2. Installation method: evenly distributed between the pressure bearing box and the stainless steel inner liner

3. Control mode: SRR contactless control mode

4、 Circulating system:

1. Stainless steel extended shaft motor, centrifugal stainless steel fan blades

2. Rear mounted air duct in the studio, forced circulation air supply

3. Multi stage membrane air heat exchanger

5、 Pressure system:

6、 Control system

1. Control method:

BTC balanced temperature control system, fully digital PID self-tuning adjustment, contactless thyristor triggering, making the heating amount of the system equal to the heat loss, without the need for expert parameter debugging by users.

2. Sensor: 1 armored Pt100

7、 Security protection measures:

1. A safe and reliable grounding protection device;

2. Power undervoltage and phase loss protection

3. Independent studio overheating protection

4. Heater short circuit/overload protection

5. Overload protection for blower motor