Specification :

Walk-in Environmental Testing Room is to perform reliability test on plenty of products simultaneously, so as to save test time of each product.
Also it is good to perform Environmental Stress Screening ( ESS) , perform dynamic testing which need big space, and test big size products.
Feature:
Æ Walk-in Environmental Testing room can test industry heavy parts, semi-finished products and finished products, mainly combined by control panel, switchboard, insulation plate, air feeder, heater, humidifier, refrigerator.7 different standard interior dimensions and 28 terms of test spec. under different conditions.
Æ Adopt individual plate to assemble, interior space could be enlarged freely, easy to disassembly and assembly. Customize the dimensions according to actual demand.
Æ The plates are made in stainless steel and coating steel, firm in structure, water-proof, attractive.
Æ Adopt centrifugal air feeder horizontal proliferation vertical heat exchange cycle system to avoid any dead angle , So that it could uniform temperature and humidity all over the room.
Æ IPC
500 controller could be connected to RS-232 interface and computer, the operator can design the procedure on computer, collect test information and record, execute calling program, remote control the switch etc.
Æ When failure exceptions appear, control screen displays failure condition immediately, cut-off the power and supply failure recovery method.
Æ Compressor of refrigerator is imported from euro and US, run environment-protective coolant. Freezing system adopts binary low-temperature loop system, and work by different compressors vary from temperature fields, so as to lengthen lifetime of the tester
Programmable Controller:
Æ Use imported superheterodyne LCD on touch-control screen, easy to operate , easy to program.
Æ Controller operate panel is optional for Chinese or English edition, and shows RT run curve.
Æ 120 programs, 1, 200sections999cycles content, each period of time could be set as 99h59m maximum.
Æ Controller screen locked automatically after input data and test conditions to avoid any un-expected stop by personal touch.
Æ P.I.D calculation automatically, correct environmental change immediately, so as to control temperature and humidity more accurate and stable.
Æ RS
232CIF and connect software, could program , observe test process and execute on/ off etc. through computer.
Æ 9 fault information display, When failure exceptions appear, control screen displays failure condition immediately, cut-off the power and supply failure recovery method.
Æ 4 groups of timing singal contacts, may output control contact during operation to support operator to perform dynamic testing.( optional)
Æ Provide temperature and humidity linear AC singal output to recorder to help understand test conditions’ situation, so as to improve test reliability .
Freezing and air channel system:
Æ Compressor of refrigerator is imported from euro and US, run environment-protective coolant. R134A
R404
AR23A) 
Æ Freezing system adopts binary low-temperature loop system, and work by different compressors vary from temperature fields, so as to lengthen lifetime of the tester
Æ Adopt centrifugal air feeder horizontal proliferation vertical heat exchange cycle system to avoid any dead angle , So that it could uniform temperature and humidity all over the room
Æ Air cycle obey side blow out and return design, pressure and speed are according to test standard, also make switch temperature and humidity return fast.
Æ Heating up, temperature reduction, humidification and dehumidification systems can all improve efficiency individually , reduce test cost, length lifetime, decrease failure rate.
Model YL-2290A-10 YL-2290A-20 YL-2290A-40 YL-2290B-10 YL-2290B-20 YL-2 290B-40 YL-2290C-10 YL-2290C-20 YL-2283C-40
Interior Dimension
( W* D* H) CM
200* 200* 200
300* 200* 200
400* 200* 200

Exterior Dimension ( W* D* H) CM
270* 225* 220
370* 225* 220
470* 225* 220

Interior Material Stainless Steel Plate( # SUS304)
Exterior Material Beige coating Steel plate
Door Size Single-door, 85 W x 180 H cm
Humidity Range 30% ~ 95%
Insulation Material Fire resistance PU foam 100mm( 150mm)
Cooling Method
Water
Temp.Range High Temperature 80 80 80 80 80 80 80 80 80
R.T.~ H.T.80 60 60 60 60 60 60 60 60 60
Low Temperature -10 -20 -40 -10 -20 -40 -10 -20 -40
R.T.~ H.T.80 50 60 120 50 60 120 50 60 120
Temperature Uniformity Within ± 2.00 ( no-loading)
Humidity Uniformity Within ± 5H RH( no-loading)
Temp Accuracy ± 0.2
Humidity Accuracy ± 2 RH
Power 380V / 3-phase 40A 45A 50A 50A 55A 65A 55A 60A 70A
Control System Temperature Humidity Sensor PT 100© × 3
Controller TEMI880
Setting Range Temperature: -100.00 + 200.00 Time : OH 1M ~ 9999H 59M Cycle: 0 CYCLE ~ 9999 CYCLE
Resolution TEMPERATURE : 0.01 / TIME : 1 MIN
Output Mode PID + SSR CONTROL MODE
Safety Devices residule current circuit breaker protection, FUSE, RC electronic formula surges protector, power lightning protector, anti-phase & lack-phase protector.
Ext. fault detect and protect automatically, electronic high and over high temperature protector, fixed high and over high temperature protector, Humidity water cut-off protection and electronic dry heat protection, compressor coolant pressure protection and over-loading protection. Cut off control power , fault indication window and alarm singal output dispose when failure exception , prevent locking device.

Standard Accessories Observation window( 36W x 50 H cm) , test hole( 50mm) , water-proof and explosion-proof lighting, RO reverse osmosis device, FOR WINDOWS recorder software, Servo Humidification System
Extra Characteristics Low-temperature chemical dehumidification wheel/ CM BUS ( RS-485/ network) Remote monitoring surveillance system/ Servo Humidification System