YDJ-2000-type smoke meter

YDJ-2000 smokemeter Introduction I. Overview smoke meter works with one piston suction pump to extract quantitative volume (330 ml) of the exhaust gas from a diesel engine exhaust pipe it through a certain area The white paper, so the carbon particles in the exhaust gas leaving it attached to the filter paper dyed black, then use paper on the photoelectric smoke detector measuring absorbance marks to assess the diesel engine exhaust smoke. Second, the technical performance indicators 1, the suction pump? Suction pump exhaust volume of 330 ± 15 milliliters. ? Aspirator sampling time from 1.2 to 1.6 seconds. ? The pump tightness: in a minute amount of outside air infiltration does not exceed ± 10% of the exhaust volume. ? Sampling filter: GB1915-80 rapid qualitative chemical analysis using filter paper, diameter 45 mm. 2, the instrument host? Minimum scale smoke was 0.01Rb. Display Press absorbance value display, with 0 ~ 10.0 Rb represented (Rb: Smoke Unit Pausch), "0" is pure white paper smoke, "10" is the all-black smoke filters. ? Display value error is less than ± 3% F? S. ? Built-in power supply: NiMH battery pack (7 # 7). 3, the instrument of normal use conditions Ambient temperature:? 0 ~ 45 ℃ Relative humidity: