High and Low Temperature Low Pressure Test Chamber-Linpin Instruments

Product Features

Product application:
High and low temperature low-pressure test chambers are primarily used in the fields of aviation, aerospace, information, electronics, etc., to determine the environmental adaptability and reliability of instruments, altimeters, electrical products, materials, components, equipment, etc.,

under the combined or individual effects of low pressure, high temperature, and low temperature.

These chambers also allow for the simultaneous application of electrical power to the test specimens to measure electrical performance parameters.

Compliance with standards:
GB/T.2423.21
GJB150.6-86
GJB.150-3-86
GJB150-4-86
GB/T2423.1-1989
GB/T?2423.2-1989
Chamber structure:
The high and low temperature low pressure test chamber is manufactured using CNC machining to achieve a beautifully shaped and generous design. It features non-reactive handles that simplify operation.

The interior of the chamber is lined with high-grade imported stainless steel (SUS304) mirror panels, while the exterior is crafted from A3 steel plates with a spray plastic coating, enhancing both the visual texture and cleanliness.

A large observation window equipped with a lighting fixture ensures the interior remains well-lit, and the use of embedded tempered glass within the heating element allows for clear observation of the chamber's conditions at any time.

The machine is equipped with high-quality, fixed casters made of PU (polyurethane) at the bottom, providing stability and ease of movement.
Control system:
The high and low temperature low-pressure test chamber is equipped with an imported touch screen temperature control instrument that features programmable microcomputer PID control with SSR (Solid State Relay) output operation, and a full-imported, large LCD color touch screen interface.

The controller's operation interface offers a choice between Chinese and English, and it can display real-time operation curves on the screen.

It has an automatic PID calculation function that can immediately correct temperature change conditions, making the temperature control more precise and stable.

Optional accessories include a printer and the ability to connect to a computer.
Refrigeration system:
The high and low temperature low pressure test chamber utilizes a fully enclosed compressor from the original French brand "Tecumseh" for its refrigeration unit.

It includes a drying filter from the American brand "Arico," an oil separator from the Taiwanese brand "GuanYa," and an electromagnetic valve from the Italian brand "Castel."

The refrigeration system is designed with either a single-stage or two-stage low-temperature circuit system.

A multi-blade blower is used for strong air circulation, which helps to eliminate any dead spots and ensures uniform temperature distribution throughout the test area.

The air circulation system is designed with both outlet and return air paths, ensuring that the air pressure and velocity meet the test standards and allowing for quick temperature recovery after the door is opened.

The heating, cooling, and other systems are completely independent, which can improve efficiency, reduce testing costs, extend the lifespan, and decrease the failure rate of the equipment.

Product Parameter

Model	Studio Size (DWH)mm	Dimension（DWH）mm
LRHS-101B-LF	450×450×500	1500×1120×1930
LRHS-225B-LF	500×600×750	1550×1270×2160
LRHS-504B-LF	700×800×900	2000×1470×2290
LRHS-800B-LF	800×1000×1000	1900×1560×2550
LRHS-1000B-LF	1000×1000×1000	2100×1560×2550

temperature range	A：-20℃～150℃ B：-40℃～150℃ C：-60℃～150℃ D：-70℃～150℃
Temperature uniformity	≤2℃ (at no load)
Temperature fluctuation	±0.5℃(at no load)
heating rate	atmospheric（100KPa）～1KPa
pressure deviation	atmospheric～50Kpa：±2Kpa；
heating rate	RT～150℃≤60min (at atmospheric pressure and no load)
cooling rate	RT～-40℃≤40min (at atmospheric pressure and no load)
decompression time	≤45min（atmospheric～30KPa）
Time Setting Range	1～60000M
Air cooling method	Multi-stage diaphragm air heat exchanger
Pressure adjustment method	Dynamic pressure equalization method
Outer case material	High quality A3 steel plate electrostatic spraying
Inner box material	Imported high-grade stainless steel SUS304, pressure layer using thickened stainless steel reinforcement
Insulation material	Rigid polyurethane foam + fiberglass
Temperature Controller	Imported “UEC” brand temperature meter
temperature sensor	PT100 platinum resistance temperature measurement body
Cooling method	Single or double cascade refrigeration
Compressor	Tycon, France / BITZER, Germany
security protection		Compressor overpressure overload, fan motor overheating, the overall equipment under phase / reverse phase Over-temperature, overall equipment timing, leakage protection, overload and short-circuit protection
Supply Voltage		AC380V±10% 50Hz
Power		（A）12kW/16kW/20kW/24kW/28kW （B）17kW/22kW/27kW/31kW/35kW （C）20kW/25kW/34kW/38kW/42kW
operating environment		5℃～＋28℃ ≤85% RH
Note: 1、the above data are in the use of ambient temperature of 25 ℃ and well ventilated conditions measured 2、Can be customized according to the specific requirements of the user non-standard high and low temperature low pressure test chamber etc 3、This technical information, subject to change without notice

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