product&standard

high temperature

low temperature

Temperature variation rate

Number of cycles

cycle time

remarks

MIL-STD-2164、GJB-1032-90
Stress screening of electronic products

Working limit temperature

Working limit temperature

5℃/min

10～12

3h20min

MIL-344A-4-16
Environmental stress screening for electronic devices

71℃

-54℃

5℃/min

10

MIL-2164A-19
Environmental stress screening method for electronic devices

Working limit temperature

Working limit temperature

10℃/min

10

The residence time is when the internal temperature reaches the specified level10At ℃

NABMAT-9492
US Navy Manufacturing Screening

55℃

-53℃

15℃/min

10

The residence time is when the internal temperature reaches the specified level5At ℃

GJB/Z34-5.1.6
Guidelines for Quantitative Environmental Stress Screening of Electronic Products

85℃

-55℃

15℃/min

≧25

Time to reach temperature stability

GJB/Z34-5.1.6
Guidelines for Quantitative Environmental Stress Screening of Electronic Products

70℃

-55℃

5℃/min

≧10

Time to reach temperature stability

Notebook computer

85℃

-40℃

15℃/min

Equipment model

ESS-225L

ESS-408L

ESS-800L

ESS-1000L

Inner box size

(mm)

D

600

800

800

1000

W

500

600

1000

1000

H

750

850

1000

1000

internal volume(L)

225

408

800

1000

Equipment power supply

3ф4w380V±10%, 50Hz

■ Attachment: Shelf2block,Silicone rubber soft plug1One, 2conversion line1Set, upper computer operation software (middle)/English)

Equipment performance

Constant temperature system

Balanced temperature control system(BTC)

Circulation mode

Forced air circulation

temperature range

-70~+150°C

Temperature fluctuation

±0.5°C

temperature uniformity

≤2°C

Temperature deviation

±2.0°C

Heating and cooling rate

5°C/Min～15°C/Min(Variable temperature range:-55°C～+85°C)

load

5Kgaluminum ingot

10Kgaluminum ingot

25Kgaluminum ingot

60Kgaluminum ingot

Inner box material

stainless steelSUS304

Housing material

High quality cold-rolled steel plate electrostatic powder coating

Thermal insulation material

High density polyurethane foam+Glass wool

Observation window

Internal embedded glass for heating

cable hole

Inner diameter Φ50

heater

Nickel chromium alloy electric wire heater

Mixing fan

Multi wing centrifugal fan

motor

Condenser type

Temperature sensor

PT100Ω

Caster wheels

Lockable universal casters

■ Temperature control system

temperature controller

touch sensitiveLCDLCD display temperature controller,7Inch color LCD display touch screen

Temperature setting method

Touch sensitive setting of numbers

Temperature display mode

LCDdigital display

communication interface

RS485Interface (attached)RS232Conversion line), upper computer operation software (middle)/English)

■ Refrigeration system

refrigeration system

Mechanical binary cascade compressor unit or liquid nitrogen refrigeration

refrigerator

French "Taikang" or American "Gulun" high-efficiency compressor units

cryogen

Environmentally friendly refrigerantR404A、R23

■ Safety devices

Leakage circuit breaker for power supply, independent over temperature protector, blower motor protection circuit breaker, control circuit overload short circuit protection fuse, temperature fuse, condenser water shortage protection, compressor overload, overcurrent, overheating protection thermal relay, etc

■ Optional attachments
※1.All temperature change rate clauses refer to the average rate of change of air throughout the entire process, rather than the rate of change of product temperature;

※2.The rate of temperature change will vary depending on the load, material structure, and temperature range of the specimen;

※3.The external dimensions are determined based on the heating and cooling rate;

※4.Cooling water temperature(Ensure cooling performance)：10~28°C, water pressure0.1~0.3Mpa；

※5.Can increase the function of dampness and heat.