Pyrolyzer Module Detection System; Pyrolyzer Fan; Vacuum Pumps; Multiple Gas Monitoring - Honeywell Vertex M Technical Handbook

Vertex M 24-Point Continuous Monitor
TM
1.7 Pyrolyzer Module Detection
System
The pyrolyzer module is similar to the standard
Chemcassette module except that it detects nitrogen
®
trifluoride (NF ). The sample passes through a high
3
temperature heater (pyrolyzer) which converts the
NF to hydrogen fluoride (HF). The hydrogen fluoride
3
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
programmed into the module so the monitor displays
the NF concentration.
3
The Vertex M pyrolyzer module detects NF
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
compartment houses eight charcoal filters which
remove the following compounds:
Freon 12
Freon 13
Freon 21
Freon is a registered trademark of E.I. du Pont de Nemours &
®
Company (DuPont).
The charcoal filters may also remove other compounds.
Contact Honeywell Analytics 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.
Section 1 - Introduction
only and
3
filters. The left filter
®
Freon 113 HF
Freon 114 HCl
Freon 116 Cl
2

1.7.1 Pyrolyzer Fan

The Pyrolyzer has a fan that provides cooling to the
pyrolyzer.

1.8 Vacuum Pumps

Two field-replaceable pumps provide a redundant
vacuum source for the transport and sample flow
system. One pump in the system draws vacuum while
the other is idle. The pump exhaust connects to the
manufacturing facility central toxic exhaust system.
Note:
is
3
The exhaust line from the Vertex M should not ex-
ceed 50 feet.
The pumps are located in the bottom of the Vertex M
System cabinet inside a sound-deadening enclosure
to reduce noise. Three cooling fans circulate air over
the pumps.
The Vertex M System draws cooling air in through a
filter mounted on the pump module access door.
Pump Status Indicator
See Pump Status Indicator under
Display Area.

1.9 Multiple Gas Monitoring

A Vertex M System equipped with two or more types
of Analyzer modules can monitor more than one gas
(or groups of gases such as hydrides or mineral acids)
at a location.
Each Vertex M Analyzer module can monitor only one
gas family (such as hydrides or mineral acids).
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Section 4.3.1 System