2.8 Pyrolyzer Module Detection System
The pyrolyzer module is similar to the standard Chemcassette™ module except that it detects
nitrogen trifluoride (NF
3
). The sample passes through a high temperature heater (pyrolyzer)
which converts the NF
3
to hydrogen fluoride (HF). The hydrogen fluoride is then detected with a
standard or XPV mineral acids Chemcassette™ tape. Detection is identical to the
Chemcassette™ module.
The correlation algorithm between HF and NF
3
is programmed into the module so the monitor
displays the NF
3
concentration.
The Vertex M pyrolyzer module detects NF
3
only and cannot be bypassed to detect mineral
acids.
The right filter compartment houses eight particulate filters and one acid scrubber, which are
identical to the standard Chemcassette™ filters. The left filter compartment houses eight
charcoal filters which remove the following compounds:
Freon 12 Freon 113 HF
Freon 13 Freon 114 HCl
Freon 21 Freon 116 Cl
2
Freon™ is a registered trademark of E.I. du Pont de Nemours & Company (DuPont).
The charcoal filters may also remove other compounds. Contact Honeywell for a complete list.
Charcoal filters have a part number (P/N 1874-0139) unique to the pyrolyzer module.
The Vertex M Pyrolyzer requires two adjacent slots on one tier and always occupies Slot 1 and 2.
The bottom rail and latch must be removed from slot 1 to install pyrolyzer.
2.8.1 Pyrolyzer Fan
The Pyrolyzer has a fan that provides cooling to the pyrolyzer.
Vertex M 30 User Manual
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