So2 test box(SKY7005)
Summary:
The equipment can be tested in accordance with the standard of GB/t2423.19-1981, GB/t2423.33-2005, ISO6988 (in lieu of DIN50018:1988-06), DIN50900, DIN53210, and equivalent IEC, MIL, ASTM, etc.
1. Main technical parameters
1. Studio size: 1000x 640 x 500mm
2, temperature range: RT + 5 ~ 55 ℃ (please in order before other temperature range)
3, temperature fluctuation degree: plus or minus 0.5 ℃
4, temperature uniformity, plus or minus 2 ℃
5. Relative humidity: 75 ~ 98% RH
6. The concentration range of sulfur dioxide (specified in the order) : 0 ~ 5000ppm (0 ~ 1000pphm) adjustable
7. Quantitative control (indicating when ordering) : 0 ~ 10L/hour (adjustable or directly quantitative)
8. Environmental requirements:
A) and power: AC380V 50/60hz (other voltage instructions)
B) the distance between the box and the wall is greater than 600mm (back);
C) the left side of the equipment shall be as far as possible against the wall, and outside the wall must be outside (for the discharge of sulphur dioxide gas);
D) the equipment should be equipped with a separate room, which can be easily exchanged with outdoor air.
9. Structure materials and features:
A) the box is made of epoxy fiberglass, and it is covered with asbestos plate, high temperature resistance, corrosion resistance, light weight, high strength, and smooth and easy cleaning of the inner and outer wall of the box body.
B), the box cover made of epoxy glass fiber reinforced plastic lid of 100 ~ 120 ℃, so as to avoid the condensate drop on the sample directly in the cabinet. A pneumatic device opens the lid of the box.
C) and heater: the nickel-chromium alloy heating wire is heated at the bottom to form a clamping heating, which makes the temperature uniformity in the box.
D) method of humidification: the steam generator is humidifying.
E) input method for sulfur dioxide: cylinder input (artificial);
F), discharge gas treatment (mandatory discharge function) : install the sulfur dioxide gas treatment device, and achieve the qualified emission (external setting of the purification device) by multistage treatment of sodium bicarbonate.
2. Control system
1. Temperature control: imported temperature and humidity controller;
2. Temperature input: PT100; Output: SSR driver;
3. Adoption cycle (measurement filter) : 2 ~ 3s;
4. Control components mainly adopt joint venture products;
5. Adopt solid state breaker to control the temperature and humidity, and the performance is stable and noiseless;
6. Fan mixing circulation in the box (the impeller is nylon material);
7. Control of sulfur dioxide concentration: dedicated controller, can set display unit: flow (L) or concentration (PPM/PPHM);
8. Sulfur dioxide concentration sensor: 316L titanium alloy or PTFE sensor.
9. Flowmeter: glass products (corrosion resistant), flange is 316L stainless steel;
Flow control valve: polytetrafluoroethylene material.
