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9.
PROBES AND FILTERS
Standard Probe
The standard probe (Part No. SP-207) is a rigid tube which connects to the water-block
filter. If extra length is desired, an extension (7") is screwed finger-tight onto the end of the
probe. A rubber gas collector (Part No. RT-107) on the end of the extension is useful for finding
leaks under windy conditions.
WARNING:
Do not use this probe for flue gas measurements. The plastic probe will
become soft, deform, or decompose.
Flue Gas Probe
The flue gas probe (Part No. FP-110) is a telescoping metal probe screwed finger-tight
into the flue gas filter cartridge. The other end of the filter cartridge attaches to the water-block
filter. This probe, together with its filter cartridge, is recommended for CO measurements in flue
gas and ambient air.
WARNING:
Never attach the filter cartridge directly to the sample hose - always use a
water block filter.
WARNING:
Hold the probe without touching the metal while it is in the flue and
immediately afterwards.
measurement will help cool the probe and dry the filters.
Gooseneck Probe
The optional gooseneck probe (Part No. GP-014) is 14" long and attaches directly to the
inlet port of the detector. The short length and low internal volume of this probe reduces the
time required to pull a gas sample from the probe tip to the gas sensors. This probe optimizes the
response time on the TRACK GAS scale. To increase sensitivity in windy conditions, use a
rubber gas collecting tip (Part No. RT-107) on the end of the probe.
Bar Hole Probes
There are four optional probes suitable for bar holing:
Bar Hole/Ceiling Probe (Part No. BP-034) 34" long, clear, one hole at end.
Bar Hole Probe (Part No. BP-134) 34" long, clear, side holes.
Bar Hole Probe (Part No. BP-436) 36" long, fiberglass, one hole at end.
Bar Hole Probe (Part No. BP-536) 36" long, steel, side holes.
The bar hole/ceiling probe has a single inlet on the end and comes with a rubber gas collector
(Part No. RT-030) useful for finding leaks in overhead pipes. The stainless steel probe has an
Running the instrument in air after a
17
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