High and low temperature low pressure test chamber
The low-pressure test chamber is mainly used in the fields of aviation, aerospace, information, electronics, etc., and determines the environmental adaptability and reliability test of instrumentation, electrical products, materials, parts and equipment under low pressure, high temperature and low temperature single or simultaneous action. And at the same time, the test piece is energized to measure the electrical performance parameters.
Product principle and function
High and low temperature and low pressure test chambers are mainly used in aviation, aerospace, electronics, national defense, scientific research and other industrial sectors to determine the storage of electrical and electronic products (including components, materials and instrumentation) under high or low temperature and low pressure single or simultaneous operation. The transportation reliability test can be carried out to test the electrical performance parameters of the test piece at the same time.
High and low temperature low pressure test chamber structure device editing
1. Shell cold-rolled steel plate sprayed or stainless steel, liner stainless steel
2. Insulation layer: ultra-fine glass wool and hard polyurethane
3. Refrigeration method: compression refrigeration mode (air-cooled condenser)
4. Refrigerator: original French Taikang fully enclosed compressor unit
5. Heater: military grade stainless steel fin heater
6. Convection system: multi-blade fan, special motor for air conditioner
7. Temperature controller: Digital intelligent temperature controller, temperature adopts PT-l00 sensor.
8. The control cabinet electrical components are arranged in a reasonable arrangement, the wiring is neat, and the sheathed terminal blocks printed with the logo are used.
9. Castel solenoid valve, Danfoss expansion valve
10. High quality vacuum pump.
High and low temperature low pressure test chamber vacuum system editing
1. Vacuum system composition: The vacuum system is a component of the vacuum degree and the measurement control vacuum degree. It consists of a vacuum measurement system and a vacuum acquisition unit.
2. Vacuum measurement: The vacuum measurement is measured by a pressure sensor. The vacuum gauge uses vacuum strain to measure the vacuum. The measurement data is a linear electrical signal, which can be directly input into the device controller for display and control.
Environmental conditions
Temperature: 5 ° C ~ 28 ° C (average temperature within 24 hours ≤ 28 ° C)
Relative humidity: ≤85% RH
Air pressure: 86kPa ~ 106kPa
Power supply condition three-phase four-wire protection ground wire, voltage range: AC (380 ± 38) V
Frequency allowable fluctuation range: (50 ± 0.5) Hz
Protective earthing wire grounding resistance is less than 4Ω
High and low temperature low pressure test chamber technical indicators
1. Studio size:
FA-4 4 cu ft (113L)
-73°C to 177°C
N/A
FA-10 10 cu ft (283L)
-73°C to 177°C
20% to 95% RH
FA-16 16 cu ft (453L)
-73°C to 177°C
20% to 95% RH
FA-35 35 cu ft (991L)
-73°C to 177°C
20% to 95% RH
FA-64 64 cu ft (1812L)
-73°C to 177°C
20% to 95% RH
FA-96 96 cu ft (2718L)
-73°C to 177°C
20% to 95% RH
2. Temperature range: -40 to 150 ° C
3. Temperature deviation: ± 2 ° C
4. Temperature fluctuation: ±0.5 °C
5. Temperature uniformity: ≤ 2 ° C
6. Air pressure level: 4 ~ 84kpa
7. Heating rate 1.0~3.0°C/min
8. Cooling rate 0.7~1.0°C/min
9. Control system controller Siemens PLC controller, Siemens color LCD touch screen
10. Accuracy range setting accuracy: temperature ± 0.1 ° C, indicating accuracy: temperature ± 0.1 ° C, resolution: ± 0.1 ° C
11. Temperature sensor platinum resistance PT100Ω/MV
12. Pressure sensor electronic pressure transmitter
13. Heating system fully independent system, nickel-chromium alloy electric heating heater
14. Refrigeration system French original "Taikang" fully enclosed air-cooled single-stage / multi-stage compressor refrigeration
15. Circulating system temperature resistant low noise air conditioning type motor. Multi-leaf centrifugal wind wheel
Safety device
1. Overload, short circuit protection
2. Over temperature protection
3. Refrigerator high and low voltage protection
4. Alarm alert
High and low temperature low pressure test chamber Q8-902 controller description
Operation interface
Touch screen Chinese interface, digital display, instant curve, operation selection, timing setting, program setting, alarm, parameter setting, etc.
Curve recording function
The set value, sample value and sampling time of the device can be saved; the maximum storage time is 30 days. At the same time, there are 5 real-time curves with different capacity and resolution for 30 days, 7 days, 24 hours, 8 hours and 1 hour, and can display real-time data to meet different needs of users.
Printing function
Micro printer can be connected (optional)
Program capacity
Program: up to 30 curves
Block: Up to 50 segments per program (1200 segments total)
Block grouping: Each curve can be divided into sections by any continuous segment, up to 10 sections can be combined, and sections can be overlapped.
Internal loop: The block in the program is the minimum loop unit in the section, and can be looped up to 99 times per section.
Program loop: up to 99 times
Program connection: the end of the program can be connected to the selected next program
Related standards
In addition to the content specified in this technical requirement, the equipment meets the requirements of the following standards: GB/T10591, GB/T10592.
Information and services
1. Provide technical information such as electrical schematic diagram, consumable parts list, operation and maintenance manual, etc., and provide technical information of major purchased parts.
2. Train 1~2 equipment operation and maintenance personnel to fully master the equipment operation skills and general maintenance and maintenance skills.
3. Provide the buyer with unpaid after-sales service within one year from the date of acceptance of the equipment, and provide the buyer with accessories at a cost price one year later.
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