MSA Toxgard II - Chapter 4 Specifications

Chapter 4
Specifications
Table 4-1. Specifications
GAS TYPES
Combustibles, Oxygen & Toxics
TEMPERATURE
RANGE
TOXICS & OXYGEN
OPERATING
RANGE:
0 to 40
o
C
(32 to +104
o
F)
*EXTENDED
RANGE:
-20 to +50
o
C
(-4 to +122
o
F)
Calibrate within operating range
COMBUSTIBLES DUAL MODULE:
-40 to +90
o
C
(-40 to
+194
o
F)
DRIFT
ZERO DRIFT
Less than
5%/year,
typically
SPAN DRIFT
Less than
10%/year,
typically
NOISE
Less than 1% FS
ACCURACY
GAS LINEARITY REPEATABILITY
CARBON MONOXIDE
the greater of
+
2%
full scale (FS)
+
1% FS or 2
ppm
OXYGEN
+
2% FS
+
1% FS
HYDROGEN SULFIDE
+
10% FS or 2 ppm
+
1% FS or 2
ppm
CHLORINE
+
10% FS or 2 ppm
+
5% FS or 1
ppm
SULFUR DIOXIDE
+
10% FS or 2 ppm
+
1% FS or 2
ppm
NITRIC OXIDE
+
10% FS or 2 ppm
+
1% FS or 2
ppm
NITROGEN DIOXIDE
+
10% FS or 2 ppm
+
4% FS or 1
ppm
HYDROGEN
CYANIDE
+
10% FS or 2 ppm
+
4% FS or 2
ppm
HYDROGEN
CHLORIDE
+
10% FS or 2 ppm
+
10% FS or
2 ppm
COMBUSTIBLE GAS,
H
2
+2% of scale
+
1% FS
COMBUSTIBLE GAS,
PETROLEUM
VAPORS
+
2% of scale
+
1% FS
COMBUSTIBLE GAS,
SOLVENTS
+
2% of scale
+
1% FS
CHLORINE DIOXIDE
+
10% FS or 2 ppm
+
5% FS or 1
ppm
Chapter 4, Specifications
4-1