SULFURYL FLUORIDE MANUAL REV C
PAGE 5 OF 23
04/07/11
INTRODUCTION
The Interscan GF1900 Sulfuryl Fluoride gas fumigant analyzer is
expressly designed for use as a
clearance monitoring device to determine
safe re-occupation of a structure after aeration only.
Use of this device
for any purposes other than use as a clearance device will invalidate the
warranty.
The furnace is a key and essential component of the GF1900. Due to extreme heat (900
degrees C) the furnace has a limited life.
M
ean
T
ime
B
efore
F
ailure (
MTBF
) is one
thousand (1000) hours. This is the average lifetime of accumulated runtime hours before the
furnace will fail due to the extreme operating heat.
Note: The furnace life is further dependent on the exposure duration and level of the
the Sulfuryl Fluoride (SO
2
F
2
) gas.
Exposure to levels in excess of 50 ppm of
Sulfuryl Fluoride (SO
2
F
2
) gas
can
lead to greatly reduced life or instantaneous failure of the furnace.
The Sulfuryl Fluoride (SO
2
F
2
) gas is passed to the Interscan Sulfur Dioxide sensor
for conversion to an electrical current in direct proportion to the gas level. This signal is
then processed by the circuitry for display on the meter in engineering units of
p
arts
p
er
m
illion (
ppm
).
Summary of Contents for GF1900
Page 1: ...SULFURYL FLUORIDE MANUAL REV C PAGE 1 OF 23 04 07 11 GF 1900 SULFURYL FLUORIDE ANALYZER ...
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Page 15: ...SULFURYL FLUORIDE MANUAL REV C PAGE 15 OF 23 04 07 11 Figure 3 BC1 24V PATTERY PACK CHARGER ...
Page 17: ...SULFURYL FLUORIDE MANUAL REV C PAGE 17 OF 23 04 07 11 DIAGRAMS SCHEMATICS PARTS ...
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