Honeywell SPM Technical Handbook page 35

Hydrogen Sulfide
Hydrogen Sulfide-dry
Hydrogen Sulfide (low)
Nitrogen Dioxide
Ozone
Phosgene
Sulfur Dioxide**
Fluorine
Fluorine-Low Level
Boron Trifluoride
The Teflon-membrane particulate filter assembly, P/N 1830-0055 requires replacing this filter's membrane, P/N
0235-1072 every 30 days.
* Hydrogen Bromide and Hydrogen Iodide are very water soluble. A high relative humidity (RH) will cause
sample loss due to absorption onto the sample lines. For these gases, use the table below as a guide to
determine the maximum sample length.
** Listing for current SO
Note:
When monitoring for gases using low-level calibrations, additional sample line restrictions may apply. Consult
Honeywell Analytics.
Caution
Acid scrubbing filters (P/N 710235) are not to be used with SPM sample lines.
SPM Technical Handbook
Target Gas
- ppm calibration is the same for SO
2
Gas
Sample
Hydrogen Bromide
or
40-60%
Hydrogen Iodide
SPM Single Point Monitor
Maximum Sample Line
SPM with Extended
Standard SPM
Sample Option
3 meters (10 ft) 30 meters (100 ft)
3 meters (10 ft) 6 meters (20 ft)
- ppb calibration
2
Maximum Sample Length
RH of
(with extended sample
option)
<40% 100 ft. (30 m)
20 ft. (6 m)
4-12
Filter Filter Filter
Type A Type B Type C
X
X
X
X X
no filter
X
X X
X X
X X
X X