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E-mail
513687859@qq.com
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Phone
18317070697
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Address
No. 888 Siyi Road, Jiading District, Shanghai
Shanghai Kelute Technology Instrument Co., Ltd
513687859@qq.com
18317070697
No. 888 Siyi Road, Jiading District, Shanghai
The operation method is to place a sample with a surface area of 1 square meter in a climate chamber where the temperature, relative humidity, air flow rate, and air replacement rate are controlled at certain values. Formaldehyde is released from the sample and mixed with the air inside the box. The air inside the box is regularly extracted and passed through an absorption bottle containing distilled water. All formaldehyde in the air is dissolved in water; Measure the amount of formaldehyde in the absorption solution and the volume of extracted air, calculate the amount of formaldehyde per cubic meter of air, expressed in milligrams per cubic meter (mg/m ³). The extraction is periodic until the formaldehyde concentration in the air inside the climate chamber reaches a stable state.
The main body of the 1 cubic meter formaldehyde test chamber adopts the internationally advanced jacket structure. The sandwich structure has a test chamber for the inner container and an insulated box for the outer layer. The inner liner material is double-sided welded with mirror 304 stainless steel material, and the welding seam in the gas chamber is polished. The inner liner has good airtightness, increases cleanliness and reduces adsorption, and also ensures no cross contamination of the measured gas. The geometric shape of the climate chamber liner is designed to have a certain curvature, which is very beneficial for reducing air stagnation, thereby reducing temperature and humidity fluctuations, and improving gas uniformity; The inner chamber of the climate chamber can be effectively cleaned with solvents and high-purity distilled water, and the pipelines, joints, sealing gaskets, etc. inside the test chamber are made of non absorbent, non-volatile and highly stable materials, ensuring the rigor of VOC testing.
model |
KLT-NT02 |
KLT-NT1 |
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Nominal internal volume (liters) |
225(1±2%) |
1000(1±2%) |
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internal dimensions （mm） |
W |
550 |
850 |
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D |
600 |
1080 |
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H |
680 |
1100 |
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external dimensions （mm） |
W |
1100 |
1500 |
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D |
796 |
1300 |
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H |
1520 |
1850 |
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sex can |
temperature range |
15～30 ℃ |
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humidity range |
35～70 % RH |
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temperature deviation |
≤ ±0.5 ℃ |
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Humidity deviation |
≤ ± 2% RH |
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Temperature Uniformity |
≤±0.8 ℃ |
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Humidity uniformity |
≤ ±2 % RH |
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temperature fluctuation |
≤ ±0.5℃ |
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Humidity fluctuation |
≤ ± 2% RH |
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Ventilation rate |
0-1.5 times/hour |
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sealing performance |
The air leakage rate inside the cabin is less than 5%. If the gas supply rate or pressure exceeds 1kpa, the gas leakage rate is less than 0.5% of the cabin capacity per minute |
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Central wind speed |
0.1-1.0m/s (continuously adjustable) |
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Relative positive pressure |
10±5pa |
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spike recovery rate |
＞80% |
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Background value |
Formaldehyde: ≤ 0.006mg/m3 |
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Temperature control method |
Indirect temperature control method for water circulation |
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Humidity control method |
Dual directional adjustment method for dry gas and moisture ratio |
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material |
shell |
Q235A cold-rolled steel plate 1.5mm, surface electrostatic spraying, white |
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inner box |
SUS304 mirror stainless steel 1.5mm (8k mirror) |
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adiabatic |
High density polyurethane foam+XPS |
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seal |
Silicone (food grade), polytetrafluoroethylene |
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Operation control |
monitor |
7-inch color touch screen, resolution 800x480, remote control (optional) |
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Automatically record projects |
Temperature, humidity, pressure (optional), flow rate (optional), operating time, fault record |
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Control method |
Temperature control: proportional, integral, derivative (P.I.D); System control: PLC+HMI |
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resolution |
Temperature: 0.1 ℃; Humidity: 0.1% RH |
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communication interface |
1 USB-A, 1 USB-B, 1 RS232, 1 RS485, 1 RJ-45 (optional) |
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Rough storage and recording function |
Memory, USB flash drive, SD card |
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Supplement water quality and cycle |
Distilled water; >30 days (continuous operation) |
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power supply |
AC380 (1 ± 10%) V (50 ± 0.5) Hz three-phase four wire+protective grounding |
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Installed capacity (Kw) |
2.5 |
3.0 |
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Weight (Kg) |
280 |
320 |
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Noise (dB) |
≤ 60dB |
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System protection |
High and low pressure protection, overcurrent protection of refrigeration system; Overtemperature protection; Motor overcurrent protection; Water shortage protection; Power supply under phase, phase sequence protection, etc. |
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