Bogen CM-810 Instructions d'exploitation télécharger pdf (Page 18)

18 GMS810-/GMS811-FIDOR · Operating Instructions · 8013911 V1-0 · © SICK AG

Product Description

Subject to change without notice

2.7 Information on operating gases

2.7.1 Instrument air

The instrument air is used as:

● Induction air for the ejector.

● Control air for pressure control.

● Combustion air for the FID (for the “internal catalyst” option).

2.7.2 Combustion air

● Instrument air (for measuring range > 500 mgC/m

● Internal catalyst (option) (for measuring range <= 500 mgC/m

● External catalyst (for measuring range <= 500 mgC/m

2.7.3 Fuel gas

● Hydrogen.

Recommendation:

Monitor the pressure of the combustion gas with a pressure monitor which emits an elec-

tric signal at a certain minimum pressure (e.g. 10 bar).

2.7.4 Test gas

● Zero gas: From internal catalyst or external.

● Reference gas:

– Recommendation: Propane in synthetic air.

– Concentration: Approx. 75% of full scale reading.

Recommendation:

Monitor the pressure of the reference gas with a pressure monitor which emits an electrical

signal at a certain minimum pressure (e.g. 10 bar).

This Section contains general information on operating gases.

Quality of operating gases

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p. 74, »Gas supply«

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Bogen CM-810 Instructions d'exploitation Page 18