Bacharach Flue-Gas Sample Conditioning System Especificaciones descargar pdf (Pagina 73)

ECA 450 Maintenance

Instruction 0024-9400

4.6 Cleaning the Probe and Sampling Hoses

If the combustion analyzer is used on either coal or oil fired burners,

particulates can accumulate within the probe and sampling hoses. These

particulates may, in time, build up and restrict the flow of gas into the

analyzer. Note that the probe’s water trap’s filter element should prevent

soot from reaching the analyzer’s internal components. While using the

combustion analyzer, the type of fuels that cause the most dirt and how often

the system needs to be cleaned will become evident.

Equipment Required:

• Aerosol can of automotive carburetor cleaner

• Alcohol

• Mild liquid detergent

• Method of forcing water through sampling hoses (see text)

• Clean rags

• Source of compressed air (optional)

Procedure:

1. If not already done, disconnect the probe’s gas and pressure fittings and

its thermocouple connector from the analyzer.

2. Remove gas and pressure hoses from barbed fittings on probe handle and

gas hose from the water trap / filter assembly (Figure 4-5).

CAUTION: Carburetor cleaner attacks plastic and rubber components.

Take precautions not to spray carburetor cleaner onto the probe handle,

sampling hoses, or analyzer.

Figure 4-5. Cleaning the Probe and Sampling Hoses

WATER TRAP/FILTER ASSEMBLY

GAS HOSE

PRESSURE

HOSE

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Bacharach Flue-Gas Sample Conditioning System Especificaciones Pagina 73