Specifications

Instruction 0024-9460 52

Fyrite

INSIGHT

6.7 Cleaning the Probe

The probe tube and gas-sample hose will become dirty under normal use.

Note that the water trap’s filter element should prevent soot from reaching

the analyzer’s internal components. If the probe is not kept clean, it could

become clogged and restrict the flow of gas into the analyzer, resulting in

incorrect combustion test readings and calculations.

NOTE: An analyzer that is used to test natural gas furnaces

normally requires less frequent cleaning than an analyzer

used for testing coal or oil fired furnaces.

Equipment Required:

• Alcohol

• Aerosol can of automotive carburetor cleaner

• Clean rag

• Source of compressed air (optional)

Procedure:

1. Remove gas-sample hose from top of water trap.

CAUTION:Carburetorcleanerattacksplasticcompo-

nents!Takeprecautionsnottospraycleanerontothe

probe handle or analyzer.

2. Insert the plastic-spray tube of the carburetor cleaner into the gas-

sample hose, and then liberally spray carburetor cleaner through the

hose and out the probe tube.

3. After spraying, remove all the residual cleaner by repeatedly flush-

ing the gas hose and probe tube with alcohol.

4. Wipe off the surfaces of the probe and tubing with a clean rag.

5. Allow the parts to dry completely. If available, blow compressed air

through the probe to expedite the drying process.

6. Reconnect gas-sample hose to top of water trap.

6.8 Error Messages

Sensor Missing - The O

sensor is not installed.

T-STK Disconnected - The probe thermocouple is not connected to the

analyzer's T-Stack connector. Plug the probe thermocouple plug into the

T-Stack connector at the bottom of the instrument.