Table of Contents
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Vertex M
24-Point Continuous Monitor
TM
A.1 Introduction
Appendix B consists of the following sections:
•
B.2 Filter Compatibility
•
•
B.4 Nominal Transport Times
A.2 Filter Compatibility
The following table shows sample filter requirements.
If you are monitoring non-corrosive target gases,
use filter type A, (P/N 780248), a sample line dust/
particulate filter.
For monitoring corrosive gases, such as chlorine
(Cl
), hydrogen fluoride (HF), hydrogen chloride (HCl),
2
and hydrogen bromide (HBr), sample lines in a dusty
environment or for outdoors, use filter type B, (P/N
1830-0055), or type C, (P/N 1991-0147) filter assembly
for corrosive gases. The Teflon membrane particulate
filter is designed to prevent dust and dirt greater than
one micron from entering the sample line. Unlike
standard particulate filters, it does not exhibit sample
loss with corrosive monitoring.
The one micron Teflon membrane contained in the
filter housing (P/N 0235-1072, 100 per pack) should
be replaced every 30 days.
Filters have an arrow on the side of the filter pointing
in the direction of airflow toward the Vertex M system.
Replacement of filters is site dependent.
Filter A - P/N 780248
Filter B - P/N 1830-0055
Filter C - P/N 1991-0147
Appendix A - Specifications
Symbol
Name
NH
3
AsH
3
AsH
D
3
AsH
LL
3
BF
3
Cl
2
ClO
2
Cl
LL
Chlorine (Low Level)
2
B
H
2
6
DMA
F2
GeH
4
HBr
HBr LL
HCl
HCl LL
HCN
HF
HF LL
HI
H2Se
H
S
2
H
S LL
2
NO
2
NF
3
COCl
2
PH
3
SiH
4
SO
2
TBA
Tert-butyl Arsine
TBP
Tert-butyl Phosphine
TDMAT
Titanium
Table A-1. Sample Filter RequirementVertex M General
B-2
Filter
Filter
Type A
Type B
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Specifications
Filter
Type C
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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