Low-Pressure High-Altitude Test Chamber (Available for customized size according to customer requirements)

Self-owned Brand: HONGJUN / Hongjun

Product Model: HJ/CQ-512DQY

24-Hour Wealth Hotline: 186-8865-3088

Hongjun Factory can customize products according to customer's specifications and dimensions!

One. Specifications and dimensions of low-pressure high-altitude test chamber:

1. Internal dimensions: 800 (width) × 800 (depth) × 800 (height) mm (customized for non-standard specifications)

2. External dimensions approx.: 1100 (width) × 1050 (depth) × 1680 (height) mm + 150mm casters; actual item measurement applies.

3. Control Panel: The control panel is located at the bottom of the machine (as shown in the figure).

4. Door Opening: Single door opens from right to left.

5. Partitioning: Internally divided into two layers, with a bottom layer of 50mm, and the remaining distance evenly divided; equipped with two partition boards.

6. Visual Window: Door with a visual window, size W350*H350mm.

7. Sealing material: High-temperature-resistant silicone strips.

8. The cabinet structure consists of: the lower section being the product chamber, and the upper section housing the electrical control box and vacuum pump installation.

9. Vacuum Pump Installation: The vacuum pump is installed at the bottom of the machine.

10. Inner box material: High-temperature-resistant SUS304# stainless steel industrial plate, with a thickness of 5.0mm, reinforced treatment for vacuum-packing without deformation.

11. Outer case material: 1.2mm thick cold-rolled steel plate, double-sided powder coating (milk white) finish.

12. Insulation Material: Fiber rock wool, excellent thermal insulation, thickness 100mm;

13. Equipment Operating Environment: Operating temperature 5 to 25°C, operating humidity 35% to 75%.

14. Equipped with movable casters and adjustable fixed foot cups at the bottom of the machine.

15. For detailed technical information, please contact Dongguan Hongjun Instrument Equipment Co., Ltd. at our wealth hotline: 138-2697-1056 for inquiries.

Low-pressure High-altitude Test Chamber Temperature Control System:

1. The temperature controller is a digital indicator (Tai Song Indicator), featuring single-point temperature control, automatic calculation, simultaneous display of PV/SV, and key setting.

2. Timer Function: 0-9999 hours/minutes/seconds, temperature countdown timer; heating stops and an alarm提示 is triggered upon time completion.

3. The thermocouple wire is of type (K).

Output: 3-32V

5. Current controller: SSR solid-state relay

6. Heating Method: Three-sided radiant heating (left, right, and bottom sides of the inner box wall)

7. Heating element: High-temperature-resistant stainless steel heating tube.

8. Temperature Range: adjustable from +20 to 60℃ at room temperature;

9. Instrument Control Accuracy: ±0.5℃

10. Instrument Accuracy Display: 0.1℃

11. Temperature Deviation: ±6°C (no-load test)

Section 3: Low-pressure High-altitude Test Chamber Vacuum System

1. The machine utilizes high-density silicone sealing strips for door sealing, ensuring excellent overall sealing performance.

2. Utilize a Panasonic digital vacuum gauge (negative pressure) to display the relative vacuum level inside the box.

3. Vacuum sensor: Automatic air pressure induction

4. Vacuum Range: 0.0KPa to -95.0KPa; vacuum levels vary by region.

5. Vacuum Pressure Leak Rate: Approximately 1.0 KPa per hour

6. The vacuum control method is automatic, stopping at the upper limit and starting below the lower limit, with a cyclic operation.

7. Test Low Pressure: At an altitude of 4,000 meters, the approximate pressure is 61.6KPa. The standard pressure is calculated as 101.3KPa - 61.6KPa = 39.7KPa. Set the vacuum gauge to -39.7KPa, with the set data representing the pressure extracted. The other parameters are set similarly using relative pressure calculations.

8. Pressure Control Accuracy: ±0.2 KPa (when ≤ 2 KPa), ±0.5 KPa (2 KPa to 40 KPa), ±2 KPa (40 KPa to 80 KPa)

9. Vacuum Pump Configuration: Goodkade YC0020 Direct Drive Vacuum Pump, Motor Power 220V/0.9KW; (As shown in the figure)

10. Dedicated vacuum pump exhaust unit; exhaust to the outdoors is the responsibility of the off-site party.

Four: Low-pressure High-altitude Test Chamber Over-temperature and Circuit Protection System

1. Over-temperature Protection System: Independent over-temperature protection device that automatically stops heating power supply when the temperature exceeds the set over-temperature protection threshold, thereby ensuring the safety of both the product and the machine.

2. Circuit Protection System: Phase sequence protection, ground protection, overload protection, circuit breakers, etc.

V. Low-pressure High-altitude Test Chamber Machine Power Supply:

1. Voltage: 380V/50Hz, three-phase five-wire system

2. Current: 11A

3. Power: 7KW

Section 6: Other Configurations for Low-Pressure High-Altitude Test Chamber

1. Power Supply: Equipped with two 10A power outlets for product use, voltage 220V/3KW.

2. Power Monitoring: Install integrated voltage, current, and power display meters.

3. For details, please contact Dongguan Hongjun Instrument Equipment Co., Ltd.