SICK EuroFID, Operating Instructions Manual

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Technical Data
EuroFID · Operating Instructions · 8011094 V2.3 · © SICK AG 195
16.6.2
Fuel gas
16.7
Sample gas conditions
Table 19 Specifications for the fuel gas
Fuel gas type: 1
1 Refer to entry in test log (explanation → P. 16, §1.4.3). Subsequent switchover not possible.
– H
2
: 100 % H
2
– H
2
/He: Mixture of 40 % H
2
+ 60 % He
Purity: 2
2
The fuel gas should not contain any hydrocarbons. Traces of CO and CO
2
are permitted.
For measuring range end values

10 ppm: 5.3
For measuring range end values > 10 ppm: 5.0
Source: Compressed gas cylinder
Table 20 Operating conditions for the fuel gas
Supply pressure: 1
1
at the gas inlet of the analyzer unit
300 kPa ±20 kPa (3.0 bar ±0,2 bar)(43.5 psig ±2.9 psig)
Volume flow during operation:
2
2 During ignition of the FID flame: Approx. 9 l/h
– H
2
: 1.3 … 1.8 L/h
3
3
For the exact value refer to the supplied test log
– H
2
/He:

3.5 l/h 3
●
Notes on selection of the correct fuel gas → P. 16, §1.4.3
●
Notes on installation → P. 32, §3.3.4
Materials of the components carrying the sample gas
Stainless steel 1.4301, graphite, quartz, platinum, sapphire, PTFE, Kalrez
Properties of the sample gas
Permissible sample gas
temperature:
– Extractive versions: 1
1 Analyzer unit types “wall housing” and “19" slide-in enclosure”
0 … 200 °C (32 … 392 °F)
– Inline versions:
2
2
Analyzer unit types “inline” and “industrial housing”
0 … 350 °C (32 … 662 °F)
Permissible dewpoint of the sample gas: At ambient temperature
Permissible internal sample gas pressure:
3
3 Relative to the ambient/atmospheric air pressure
Atmospheric pressure ±5 kPa (±50 mbar)
Sample gas volume flow: – Minimum: 40 l/h (670 cm 3 /min)
– Maximum: 170 l/h (2,800 cm
3
/min)