Bacharach Gas Pup Especificaciones descargar pdf (Pagina 24)

Gas Pup

18 Instruction 55-9002

Operation

Using the Probe’s Filter Chamber

The standard 10" probe supplied with the Gas Pup has a built-in filter

chamber that can hold either a foam filter element, or a charcoal filter

pack. Install and use these filters as follows:

Foam Filter Element – Particulate Filtration

When sampling, it is good practice to keep a foam filter installed inside

the probe’s filter chamber (see Figure 15). Although the instrument’s gas

inlet already has an internal particulate filter, the probe’s foam filter will

prevent dirt particles from building up inside the hose, which could

eventually cause a flow restriction, and where the dirt particles would be

difficult to remove for cleaning. Filters are packed ten to a box, and are

available as P/N 5500-7100.

Charcoal Filter – Petroleum Vapors vs. Combustible Gases

By using a disposable charcoal filter pack, it is a simple matter to distin-

guish between an indication caused by combustible gases (from a pipeline

leak, for example) or an indication caused by a source of petroleum vapors

(such as a nearby gasoline station). Activated charcoal will absorb a

portion of the petroleum vapors in a gas sample; however, it will allow a

dry combustible gas (such as natural gas or propane) to pass through.

Filters are packed ten to a box, and are available as P/N 5500-7400.

Figure 15. Foam Filter Element

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 43 44

Sin comentarios

Bacharach Gas Pup Especificaciones Pagina 24