16 CFR1633 Mattress Heat Emission Tester With Two Indicators

1. Flue gas flow controller system

The optical attenuation system is an incandescent light type, which is installed on the comprehensive measurement section with a flexible connector and includes the following devices: The lamp is an incandescent lamp and used at a color temperature of (2900±100)K. The power supply is a stable direct current, and the current fluctuation range is within ±0.5% (Including temperature, short-term and long-term stability);

The lens system is used to condense the light into a parallel beam with a diameter of at least 20mm. The light-emitting hole of the photocell should be located at the focal point of the lens in front of it, and its diameter (d) should depend on the focal length (f) of the lens so that d/f is less than 0.04;

Detector and imported silicon photodiode probe, photodetection chamber has 0.1% linear stability, 10-bit measurement range, the spectral distribution responsivity of silicon photodiode is consistent with CIE (illumination curve), and the standard function V(γ) can reach At least ±5% accuracy;

The 90% response time of the optical attenuation system does not exceed 3s;

2. Flue gas processing system

Equipped with a three-stage filter device, long-term filtration of dust in the flue gas:

First grade glass fiber cotton coarse filter, filter large particles of carbides in the flue gas, and the filter material can be quickly replaced;

The second-class American Parker filter, the filter element is PTFE, the precision is 2μm, and the filter element can be quickly removed and replaced;

Three-stage PTFE membrane filtration, with an accuracy of 0.5μm, effectively cut off moisture;

Imported O2 analyzer, paramagnetic O2 concentration analysis, measurement range 0-21%, accuracy 0.01%, response time no more than 12s, analyzer drift and noise no more than 100ppm within 30min;

Linear deviation: ≤1%F.S.;

Repeatability: ≤0.5F.S.

Zero floating rain: ≤1%F.S./7D;

Starting time: ≤30min;

Using Advantech acquisition module,

The gas concentration collection accuracy is 100×10-6;

The temperature collection accuracy is 0.1℃;

The pressure difference collection accuracy is 0.1Pa;

The time acquisition accuracy is 0.1s;

Other signals are 0.1% of the full-scale output value;

The system records and stores the following data at least every 3s:

The pressure difference of the bidirectional probe, Pa;

Pipe temperature, K;

O2 concentration, %;

CO concentration, %;

CO2 concentration, %;

Mass flow rate of propane, mg/s

Time, s