Remove And Replace Pyrolyzer Filters - Honeywell Vertex M User Manual

6.5 Remove and Replace Pyrolyzer Filters

The pyrolyzer version of the Chemcassette™ detects nitrogen trifluoride by "cracking" or
breaking it down with high temperatures. Heating nitrogen trifluoride converts it to hydrogen
fluoride which the Vertex M pyrolyzer detects with a standard mineral acid Chemcassette™. The
pyrolyzer heaters and associated control circuits are maintenance items not found in the
Universal Chemcassette™ analyzer.
This section describes maintenance procedures unique to the pyrolyzer analyzer.
There are eight filters in the pyrolyzer not found on the Universal Chemcassette™ analyzer. The
additional filters are filled with charcoal to remove Freon and other similar compounds from the
sample gas before it is "cracked" in the pyrolyzer. The acid scrubber and particulate filters are
identical to the standard Vertex M Chemcassette™ filters.
1. Set analyzer to idle in the Runtime Options window.
2. Touch Main Screen, Menu, Maintenance, and then Analyzer Operation.
3. Touch the module number in the Maintenance window.
4. Touch Release Analyzer.
5. Slide Analyzer out until fully extended.
Freon filters are located on the left side of the analyzer.
Vertex M 127 User Manual