Eclipse Combustion EGA4 Manuale Utente

 
 
 

Instruction Manual MM850481 ed.01 

The color of the spot on the filter is compared with a graduated (from 0 to 9) reference scale and it is called “smoke 
index”.  
You can type in the instrument up to 3 smoke index values; the analyzer calculate the average value and can print these 
values on the report. 
Normative and laws about the air pollution, describe the procedure: DIN51402, 2116, 2117 and 2297 VDI directives, 
ASTM D 2156-63 T, etc. 

1.  Smoke pump: it should suck 5.75 litres 

±0.25 l (normalized to 0°C, 760mmHg) through a 1 cm

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 filter. 

2.  Smoke index reference table: it is a grey scale sheet with 10 different areas numbered from 0 to 9. The number 0 

corresponds to a 85% 

±2.5% reflection. Every area reflects 10% less than the previous one. The scale is used to 

compare the scale with the paper filter and to calculate the smoke index.  

3.  Paper filter: When it is clean it has a reflection corresponding to the 0 scale index. It also has 3 litres per cm

2

 a 

minute (normalized to 0°C, 760mmHg) with a 200/800 mmwc resistance to the air flux. 

The analyzer has an auxiliary input for special probes connections. Available probes are: ambient CO monitoring, 
temperature & humidity (T+RH%) measurement and natural gas monitoring probes.  
An optional operative mode is the leakage pipe test to check gas network tightness using pressure decay method at 
programmable interval time. 

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