Low Temperature Test Chamber-Linpin Instruments

Product Features

Product application:
The low temperature test chamber is suitable for testing the various performance indicators of products under low-temperature conditions.

Compliance with standards:
GB/T2423.1-2008
GB/T2423.2-2008
Chamber structure:
The low temperature test chamber features a body that is machined and formed by a CNC machine tool, with an attractive and elegant appearance. It also uses a non-reactive handle, which makes operation very convenient.

The inner chamber is made of imported high-grade stainless steel (SUS304) mirror-finished plate, while the outer shell is made of A3 steel plate with plastic spraying, enhancing the appearance and cleanliness.

A large observation window with a lighting lamp is attached to keep the inside of the box bright. Moreover, by using an internally embedded tempered glass in the heating element, the conditions inside the box can be clearly observed at any time.

A test hole with a diameter of 50 mm is provided on the left side of the box, which can be used for connecting external test power lines or signal lines.
Control system:
The temperature control of the low temperature test chamber uses a fully imported touch-button instrument, which is easy to operate and set up. Once the data and test conditions are entered, the controller has a locking function to prevent changes to the temperature settings due to accidental human contact.

It features a PID automatic calculation function, which can immediately correct temperature changes, making the temperature control more precise and stable. A printer can be optionally equipped.
Refrigeration system:
The refrigeration unit of the low temperature test chamber employs a fully enclosed compressor from the original French brand "Tecumseh." The freezing system is designed with a single-stage or two-stage low-temperature loop system.

A multi-blade blower is used for strong air circulation, eliminating any dead zones and ensuring uniform temperature distribution within 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 can quickly stabilize the temperature after the door is opened.

The heating, cooling, and systems are completely independent, which can improve efficiency, reduce test costs, extend service life, and lower the failure rate.

Product Parameter

Model	Workshop size(DWH) mm	External Dimension(DWH)mm
LRHS-101B-LD	450×450×500	1160×1000×1610
LRHS-225B-LD	500×600×750	1210×1150×1870
LRHS-504B-LD	700×800×900	1260×1340×2070
LRHS-800B-LD	800×1000×1000	1370×1550×2170
LRHS-1000B-LD	1000×1000×1000	1560×1550×2170

temperature range	A：-20℃～RT B：-40℃～RT C：-60℃～RT D：-70℃～RT
Temperature uniformity	≤2℃ (at no load)
Temperature fluctuation	±0.5℃(at no load)
heating rate	1.0～3.0℃/min
cooling rate	0.7～1.0℃/min
Time Setting Range	1～9999H
test hole	Mounted on the left side of the machine for use with external test power or signal cables
viewing window	210 x 275mm or 395 x 395mm (effective field of view)
Outer case material	High quality A3 steel plate electrostatic spraying
Inner box material	Imported high-grade stainless steel SUS304
Insulation material	Rigid polyurethane foam + fiberglass
Temperature Controller	Korea Sangwon ST590 Meter
temperature sensor	PT100 platinum resistance temperature measurement body
Cooling method	Single or double cascade refrigeration
Compressor	Tycon Compressors
standard configuration		Sample racks, 2 tiers, with condensate catch pan and drain out of the box
security protection		Compressor overpressure overload, fan motor overheating, equipment phase failure/reverse phase Over-temperature, overall equipment timing, leakage protection, overload and short-circuit protection
Supply Voltage		AC380V±10% 50Hz
Power		（A）3.5kW/4.0kW/6.0kW/8.0kW/9.0kW （B）4.0kW/4.5kW/7.5kW/9.0kW/10.5kW （C）4.5kW/6.5kW/9.0kW/13.0kW/13.0kW
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 Low temperature test chamber etc 3、This technical information, subject to change without notice

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