Percent Oxygen Analyzer

Operational Theory

 

 

 

Probes of 1000 mm (40”) normally have sufficient length for any installation. Customers requiring probes longer than 1500 mm (59”) are supplied with a flow guide tube that uses the flue velocity to pull flue gas through a filter at the sensing tip and exhaust it near the flue wall.

2.2.1 Probe Configuration

The probe can be configured in a variety of ways to suit the analytical environment. Figure 2-1 shows the most common configurable items of the probe. Not indicated is the actual thermocouple sensing element, however, see Table 2-1. You can choose:

1.Probe insertion length (from process end of mounting thread to probe sensing tip). See Figure 2-2.

2.Mounting thread (process connection), BST or NPT (for size of thread refer to specifications).

3.Lagging extension length, if required.

Table 2-1 indicates typical probe options.

Table 2-1: Probe Options

Probe Length

Thermocouple

Sheath

Thread

250 mm (10”) Type K max 900°C (1560°F)

350 mm (14”)

500 mm (20”)

750 mm (30”)

1000 mm (40”)

316 SS max 850°C (1560°F)

BST or NPT

Inconel

 

The Inconel option has all

 

inconel wetted parts except for

 

the ceramic sensor and viton

 

‘o’ rings

 

Figure 2-2: Model 9060L Probe

Teledyne Analytical Instruments

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Teledyne 9060L, Percent Oxygen Analyzer operating instructions Probe Configuration, Probe Options