Dover OPW SiteSentinel iTouch M1500 - Hydrocarbon Vapor Sensor Installation (30-3222)

Doc. No.: M1500, Rev. 6
Page 61 of 127
• 67733 Gross Point Road 900 Santa Fe Dr.
1.26 30-3222 Hydrocarbon Vapor Sensor
About the 30-3222
The hydrocarbon vapor sensor is designed to detect hydrocarbon vapors in monitoring wells and the interstitial
areas of a double-walled tank. The presence of these vapors could indicate a potentially dangerous leak that
could lead to safety and environmental problems.
The sensor is made from a long-life resistive element that increases dramatically in resistance in the presence
of hydrocarbon vapors. After the vapors have dissipated, the sensor returns to normal and is ready to detect
hydrocarbon vapors again. In the event of a break in the cable, the system will activate the alarm.
30-3222 Hydrocarbon Vapor Sensor Specifications
Operating Temperature
-20°C to 50°C (-4°F to 122°F)
Dimensions
2.3 cm (0.9 in) dia. x 8.9 cm (3.5 in) long
Cable
4.5 m (12 ft) gas & oil resistant
Nominal Resistance
(uncontaminated)
3K – 5K ohms
Nominal Resistance
(Contaminated)
10K – 200K ohms
NOTE: To ensure safe operating conditions the sensor has been designed to connect to OPW Fuel
Management Systems’ controllers only.