Storage Conditions; Sensor Specifications; Toxic Gas Sensor Cross-Sensitivity Table - Ventis MX4 Product Manual

STORAGE CONDITIONS

Temperature range
Humidity range
Pressure range
Maximum time

SENSOR SPECIFICATIONS

Gas Name Abbr.
Oxygen O
2
Carbon Monoxide CO/H
with low H Low
2
interference
Carbon Monoxide CO
Hydrogen Sulfide H S
2
Nitrogen Dioxide NO
2
Sulfur Dioxide SO
2
Combustible LEL
Methane CH
4
*The accuracy specification for each sensor is ± the stated percentage or 1 unit of resolution, whichever is greater.

TOXIC GAS SENSOR CROSS-SENSITIVITY TABLE

Target Gas
CO
CO 100
H2S 5
SO2 0
NO2 -5
Cl2 -10
ClO2 —
HCN 15
HCl 3
PH3 —
NO 25
H2 22
NH3 0
47
0−25 ºC (32−77 ºF)
40–70% relative humidity (RH) noncondensing
0.9–1.1 atm
Up to 6 months
Note: Industrial Scientific recommends that infrequently used lithium-ion batteries be
fully charged every four months.
Measuring Resolution
Range
0–30% vol 0.1% vol
0–1000 ppm 1 ppm
2
0–1000 ppm 1 ppm
0–500 ppm 0.1 ppm
0–150 ppm 0.1 ppm
0–150 ppm 0.1 ppm
0–100% LEL 1% LEL
0–5% vol 0.01% vol
CO
(H2
Low) H2S SO2 NO2
100 1 1 0
5 100 1 -40
5 5 100 0
5 -25 -165 100
0 -20 -25 10
— — — —
— 10 50 1
— 0 5 0
— — — —
40 1 1 5
3 0.3 0.5 0
0 0 0 0
Ventis™ MX4 Product Manual
Accuracy at Time and
Temperature of
Calibration*
± 0.5%
± 5% (0-300 ppm)
± 15% (301-1000 ppm)
± 5%
± 5%
± 10%
± 10%
± 5%
± 5%
Sensor
Cl2 ClO2 HCN HCl
0 0 0 0
-3 -25 10 300
0 0 — 40
45 — -70 —
100 60 -20 6
20 100 — —
0 0 100 35
2 0 0 100
— -100 425 300
— — -5 —
0 0 0 0
0 0 0 0
Response Response
Time Time
(typical) (typical)
T50 T90
15 30
8 17
15 50
15 30
10 30
20 80
15 35
15 35
PH3 NO H2 NH3
0 0 20
25 10 20
— 0 0
— 30 0
-20 0 0
— — —
1 0 30
0 15 0
100 — —
— 100 30
0 0 100
0 0 0 100
© 2014 Industrial Scientific Corporation
0
25
-40
-10
-50
—
5
0
—
0
0