Item

Technical index

Temperature

Adjustment range：(15～45)℃ 

Adjustment accuracy：±0.5℃ 

Relative humidity

Adjustment range：(20～85)%RH. 

Adjustment accuracy：±3%R.H. 

Air replacement rate

Adjustment range：0.2m3～2.5m3/h(ventilation rate 0.2～2time/h） 

Adjustment accuracy: ventilation ±1% 

Detection recovery rate

＞85％，The recovery test was carried out with three reference materials of toluene, n-dodecane and Four phenyl Cyclohexene in a given amount. Provide the recovery test data of the third party (CNAS certification) testing institutions.

Face Velocity

The air horizontal velocity is maintained at (0.1-1.0) m/s and the accuracy is less than 0.05 m/s.

Test cabin dimension

（1±0.02）m3 

The test chamber is welded with SUS304 mirror stainless steel plate as a whole. Polishing and no deformation around the weld, all edges and angles are made into a certain radian. It can be washed and cleaned by water. The thickness of stainless steel plate is not less than 2.5mm. There are no rubber and adhesives to interfere with the detection of materials, sealing materials and other devices contacting with the air in the test chamber. It does not adsorb organic substances and formaldehyde. There is no condensation or condensation in the test cabin.

Pressure 

10±5Pa 

Closed 

Static Leakage Rate：Leakage rate <1× m3/min at relative pressure of 1KPa

Thermal insulation box 

The thickness of polyurethane insulation board is 120 mm.

The outer wall is steel plate, white spraying; the inner wall is 304 stainless steel plate

Background concentration  

Particle concentration requirements in gases:

The number of particles with diameter greater than 0.5 um was less than 100pc/m3.

The background concentration of formaldehyde was less than 0.006mg/m3 and that of TVOC was less than 0.02mg/m. Single VOC background concentration < 0.002mg/m3

Clean Gas Supply System

1、compressed air：Air volume：2 m3/h； 

2、Dryer：Maximum air volume：2m3/h； 

3、High efficiency particulate filter:Maximum air handling capacity：2m3/h，After treatment, the concentration of pollutants in the gas should be less than 100 particles per m3 with diameter greater than 0.5 um. 

4. mineral chameleon Chemical Filtration/Activated Carbon Filter: Maximum Air Flow: 2 m3/h,

After treatment, the concentration of pollutants in the gas required: TVOC concentration < 0.02mg/m3, any VOC < 0.002mg/m3, particle concentration larger than 0.5um < 100/m3, formaldehyde content < 0.006mg/m3.

Measurement and control system

Real time monitoring,

Record the temperature, humidity, pressure, flow rate, replacement rate, time and other control parameters in the cabin. Touch control screen is used as the dialog interface of personnel operation equipment, which is intuitive and convenient. Configuration of special control software not only realizes the function of touch screen, but also has remote control function. It can realize system control, program setting, dynamic data display and historical data playback, fault recording, alarm setting and other functions.

Main body structure

The main body adopts the international advanced jacket structure, compact, clean, efficient and energy-saving. It not only reduces the energy consumption, but also reduces the balance time of equipment, improves the detection efficiency and reduces the detection cost.

Power

The average power is 1.5KW and the rated power is 3KW.