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Contact person: Mr. Wang

18688631772 / 18925806499

dgkesion@163.com
zhouyi@kesionots.com(Sales Department)

No. 1, Building 1, Zhenrong Road, Wusha, Chang'an Town, Dongguan City, Guangdong Province

DQY High and Low Temperature (Low Pressure) Test Chamber

Evaluate the use and storage of electronic and electrical equipment under single or combined conditions simulating temperature and altitude changes (high altitude, low oxygen, high cold, plateau, etc.). Widely used in reliability testing of aerospace products, information communication, instrumentation, electrical, and mechanical products.

Category:

High and low temperature test chamber

Keyword:

Kexun

Mobile:18688631772 18925806499

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Product Introduction

Product Specifications: Inner box meets 225~3300L standard volume and other non-standard customized models

Product Introduction: Evaluates the use and storage of products, components, and materials in electronic and electrical equipment under single or combined conditions simulating temperature and altitude changes (high altitude, low oxygen, high cold, plateau, etc.). Widely used in the reliability testing of aerospace products, information communication, instrumentation, electrical engineering, and mechanical products.

Product Alias: Altitude Temperature Environmental Test Chamber, High Altitude Low Pressure Test Chamber, Low Pressure Chamber, Plateau Environmental Test Chamber, High Temperature High Cold Altitude Test Chamber, Low Temperature Low Pressure Environmental Chamber, Temperature Humidity High Comprehensive Test Chamber

I. Test Standards Met:

GB/T 2423.1-2008 Test A: Low Temperature Test Method;

GJB150.1A-2A-3A-4A-9A-24A-2009 Military Equipment Laboratory Environmental Test Methods.

GB/T 2423.21-2008 Test M: Low Pressure Test Method;

GB/T 2423.25-2008 Test Z/AM: Low Temperature/Low Pressure Combined Test.

GB/T 2423.26-2008 Test Z/BM: High Temperature/Low Pressure Combined Test;

GB/T 2423.2-2008 Test B: High Temperature Test Method.

GJB360A-1996 Method 105: Low Pressure Test;

GJB 367A-2001 "General Specifications for Military Communication Equipment" Appendix A General Environmental Test Methods.

II. Equivalent Altitude as shown in the table below ((extracted from GB/T 2423.21-2008))

Set Pressure (KPa)	1	2	4	8	15	25	40	55	70	84
Corresponding Altitude (m)	31200	26600	22100	17600	13600	10400	7200	4850	3000	1000

1. High-efficiency bipolar vacuum pump pumping unit + DPT electronic pressure regulating valve, balance compensation type pressure control;

2. Using centrifugal fan, magnetic fluid drive method internal circulation;

3. International brand (German Leybold) bipolar rotary vane vacuum pump;

4. Special design explosion-proof armored electric heating tube;

5. Special design mesh distributed evaporator;

6. High thermal radiation characteristic mesh inner box wall plate;

Technical Specifications

*Customizable arbitrary specification parameters non-standard models

High and Low Temperature (Low Pressure) Test Chamber
Model		KS-DQY-225L-A/B/D	KS-DQY-408L-A/B/D	KS-DQY-1000L-A/B/D	KS-DQY-1700L-A/B/D	KS-DQY-3300L-A/B/D
Internal Volume (L)		225 L	408 L	1000 L	1700 L	3300 L
Inner Chamber Dimensions (mm)	Width W	600	800	1000	1200	1500
	Depth D	500	650	1000	1200	1500
	Height H	750	850	1000	1200	1500
Performance Indicators		Temperature Performance Indicators
	Temperature Range	A: -40~+150℃, B: -20~+150℃, D: -70~+150℃
	Temperature Fluctuation	≤±0.3℃ (≤±0.5℃, according to GB/T5170-1996)
	Temperature Uniformity	≤2.0℃ (normal pressure, no-load)
	Temperature Deviation	≤±2℃ (normal pressure, no-load)
	Heating Rate	Average 3℃/min (normal pressure, no-load) (Temperature rate 4～25℃/minute linear/non-linear is a special condition that needs to be customized)
	Cooling Rate	Average 2℃/min (normal pressure, no-load); (Temperature rate 2～25℃/minute linear/non-linear is a special condition that needs to be customized)
		Humidity Performance Indicators (Optional)
	Humidity Range	20%R.h~98%R.h (other special conditions need to be customized)
	Humidity Uniformity	≤3.0%RH
	Humidity Fluctuation	≤±2.0%RH
	Humidity Deviation	±3.0%RH (>75%RH), ±5.0%RH (≤75%RH)
		Pressure Performance Indicators
	Pressure Range	Normal pressure~0.5KPa
	Pressure Deviation	Normal pressure~40kPa: ≤±1.8kPa; 40kPa~4kPa: ≤±4.5% kPa; 4kPa~1kPa: ≤±0.1kPa
	Pressure Drop Time	Normal pressure→0.5kPa ≤ 45min (no-load)
	Pressure Recovery Rate	≤10kPa/min
Cabinet Material	Inner box	SUS #304 stainless steel
	Outer box	Cold-rolled steel plate + double-sided electrostatic spraying process
	Insulation	Ultrafine glass wool
Pressure bearing method		Internal pressure bearing
Noise		≤70 (dB)
Controller		7-inch color touch screen controller (with pressure, temperature and humidity, with RS-485 or RS-232 communication, USB data baking)
Temperature, humidity and time resolution		Temperature: 0.01℃; Humidity: 0.1%; Time: 0.01min
Cooling method		Water cooling, air cooling
Refrigerant model		Environmentally friendly refrigerant R404A, R23
Environmental requirements		Air cooling environment temperature requirement +5~+30℃/Water cooling environment temperature requirement +5~+40℃ (Water cooling requires a water tower or chiller)
Power supply		AC380V±10%, 50Hz±1 three-phase four-wire + ground wire (3/N/PE), ground resistance less than 4Ω
Model description

DQY High-Altitude Low-Pressure Test Chamber

Temperature and humidity calibration chamber

Research, design and production of environmental testing machines

Tel: Mr. Wang: +86-18688631772
+86-189-2580-6499

Email: dgkesion@163.com

Address: No. 1, Building 1, Zhenrong Road, Wusha, Chang'an Town, Dongguan City, Guangdong Province

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