GasSens Gas Detection System Section 1 - Overview
O & M Manual
A14-RK, 8/06 1 - 3
INTRODUCTION
GasSens is an on-line monitoring system for the detection of hazardous gases in ambient
air. It is designed to detect and alarm gas leaks from storage cylinders, process piping, or gas
feed equipment in virtually any type of industrial plant environment. Systems are available for
monitoring a variety of gases as shown in Table 1-1.
TABLE 1-1
GAS CODE NO. STD. RANGE MIN. RANGE MAX. RANGE
GENERAL GASES
Ammonia 15* 0-100 PPM 0-50 PPM 0-500 PPM
Carbon Monoxide 16* 0-100 PPM 0-50 PPM 0-500 PPM
Hydrogen 18 0-4% 0-2000 PPM 0-10%
Nitric Oxide 25 0-100 PPM 0-25 PPM 0-500 PPM
Oxygen 19 0-25% 0-10% 0-100%
Phosgene 20 0-2 PPM 0-1 PPM 0-100 PPM
OXIDANT GASES
Bromine 10* 0-2 PPM 0-1 PPM 0-100 PPM
Chlorine 11* 0-10 PPM 0-1 PPM 0-100 PPM
Chlorine Dioxide 12* 0-2 PPM 0-1 PPM 0-100 PPM
Fluorine 13* 0-2 PPM 0-1 PPM 0-100 PPM
Hydrogen Peroxide 34 0-10 PPM 0-10 PPM 0-100 PPM
Ozone 14* 0-2 PPM 0-1 PPM 0-100 PPM
Iodine 35* 0-2 PPM 0-1 PPM 0-100 PPM
ACID GASES
Hydrogen Chloride 21* 0-20 PPM 0-10 PPM 0-200 PPM
Hydrogen Cyanide 22* 0-20 PPM 0-10 PPM 0-200 PPM
Hydrogen Fluoride 23* 0-20 PPM 0-10 PPM 0-200 PPM
Hydrogen Sulfide 24* 0-50 PPM 0-10 PPM 0-500 PPM
Nitrogen Dioxide 26* 0-20 PPM 0-5 PPM 0-200 PPM
Sulfur Dioxide 27* 0-20 PPM 0-10 PPM 0-200 PPM
HYDRIDE GASES
Arsine 28 0-1000 PPB 0-1000 PPB 0-100 PPM
Diborane 29 0-1000 PPB 0-1000 PPB 0-100 PPM
Germane 30 0-1000 PPB 0-1000 PPB 0-100 PPM
Hydrogen Selenide 31 0-1000 PPB 0-1000 PPB 0-100 PPM
Phosphine 32 0-1000 PPB 0-1000 PPB 0-100 PPM
Silane 33 0-10 PPM 0-1000 PPB 0-100 PPM
* Auto-Test is available in these gases.
The GasSens system consists of modular components that can be used in a variety of
configurations to fit specific application requirements. A description of the major system
components follows:
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