LSTH Temperature Humidity Test Chamber Manufacturer

LSTH Temperature Humidity Test Chamber

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High and low temperature damp-heat test chambers are mainly used in the quality tests and material screening of electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, lamps and building materials.

Reference Standards
1. China standards

GB/T2423.1-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Tests A: Cold
GB/T 2423.2-2008 Environmental Testing For Electric And Electronic Products--Part 2:Test Methods--Tests B: Dry Heat
GB/T 2423.3-2016 Environmental testing―Part 2:Testing method―Test Cab: Damp heat, steady state
GB/T2423.4-2008 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12 h 12 h cycle)
GJB150.3A-2009 Laboratory environmental test methods for military materiel - Part 3: High temperature test
GJB150.4A-2009 Laboratory environmental test methods for military materiel - Part 3 Low temperature test
GJB150.9A-2009 Laboratory environmental test methods for military materiel - Part 9: Damp heat test

2. International standards

IEC 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
IEC 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
IEC 60068-2-78:2012 Environmental Testing - Part 2-78: Tests - Test Cab: Damp Heat, Steady State
IEC 60068-2-30:2005 IEC 60068-2-30 Ed. 3.0 b:2005 Environmental Testing - Part 2-30: Tests - Test Db: Damp Heat, Cyclic (12 H 12 H Cycle)"

3. Laws and regulations

Manufacturing standards: GB/T 10586-2006 Specifications for damp heat testing chambers and GB/T10592-2008 Specification for low/high temperature test chambers.
Test standards: GB/T5170.2-2017 Inspection methods for environmental testing equipment -- Part 2: Temperature testing equipment and GB/T5170.5-2016 Inspection methods for environmental testing equipment for electric and electronic products -- Part 5: Damp heat testing equipment
Metrological verification standard JJF1101-2019 Calibration Specification for Environmental Testing Equipment for Temperature and Humidity Parameters

Specifications

Model		LSTH150					LSTH225						LSTH408					LSTH1000
Effective Volume (L)		150					225						408					1000
Temp. Range (℃)	Min	-20	-40		-70		-20	-40			-70		-20		-40		-70	-20	-40		-70
	Max	150 (or high temperature to 180℃)
Humidity range		20％RH～98％RH (20℃～85℃ within temperature range)
Temp. fluctuation		≤±0.5℃
Humidity fluctuation		≤±3%RH
Temp. deviation		±2.0℃
Humidity deviation		±3.0％RH(>75%): ±5.0％RH(≤75%)
Heating rate		20℃～ 150℃ ≤50min
Cooling rate		20℃～-20℃ Cooling rate≤45, min 20℃～-40℃ Cooling rate≤70, min 20℃～-70℃ Cooling rate≤90, min
Internal Dimensions(mm)	w	500					500						600					1000
	h	600					750						850					1000
	d	500					600						800					1000
External dimensions(mm) excluding protrusions	W	1000					1000						1100					1500
	H	1700					1850						1950					2100
	D	1050					1150						1350					1550
Refrigerant		R404/R23 (for-70℃)
Refrigeration mode		Mechanical compression refrigeration (air/water cooling)
Monitor		7.0 inch, TFT color LCD Monitor
Power supply		AC380V±10%V 50HZ±0.5
Maximum power (not the sum of all power) (KW)		6		7		10	6		7	10		7.5		8.5		10		13.8	15.4	18
Maximum current (A)		12		14		20	12		14	20		14		18		20		22	25	38
Weight (KG)		430		440		470	460		470	500		560		570		600		880	900	930