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Hydrocarbon Vapor Sensor
Part No. 30-3222
The Hydrocarbon Vapor Sensor is designed to detect hydrocarbon
vapors in dry monitoring wells. 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. This process could take up to 30
minutes depending on the saturation factor. In the event of a break in
the cable or any sensor malfunctions, the system will activate the
alarm.
Hydrocarbon Vapor Sensor
Installation Procedure
1. Check Dry Monitoring Wells for vapors before installing.
2. Mount Sensor close to the top, above the water level, if
applicable.
3. If sensor is submerged in water it will not function.
*Maximum Wiring Length is the maximum length of cable to be used
to connect all sensors on an individual channel. The length includes
the run of cable from the VSmart Module to each sensor board in
the string.
Hydrocarbon Vapor Sensor
Operating Temperature:
-40°F to 158° F (-40°C to 70°C)
Dimensions:
D= 0.
9“ (2.3 cm), L= 3.5“ (8.9 cm)
Required Cable:
Belden® #88760 or Alpha #55371
Maximum Wiring Length*:
1,000’ (305 m)
Connections:
Red = Power, Black = Signal
Nominal Resistance
(uncontaminated):
3K
– 5K ohms
Nominal Resistance
(contaminated):
10K
– 200K ohms
Multi-Drop Restriction:
One (1) per channel
Summary of Contents for OPW SiteSentinel iSite
Page 15: ...Page 15 of 145 www opwglobal com Figure 2 4 Console Connectivity ...
Page 17: ...Page 17 of 145 www opwglobal com Figure 2 6 Wiring Connections ...
Page 22: ...Page 22 of 145 www opwglobal com Figure 2 11 Standard Twisted Pair Petro Net Installation ...
Page 25: ...Page 25 of 145 www opwglobal com Figure 2 14 Petro Net Over Ethernet Option ...
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Page 34: ...Page 34 of 145 www opwglobal com Figure 4 1 924B Probe Installation ...
Page 61: ...Page 61 of 145 www opwglobal com Figure 5 22 In Tank Probe Setup ...
Page 74: ...Page 74 of 145 www opwglobal com Figure 9 3 Dry Well Monitoring Single Wall Tank ...
Page 78: ...Page 78 of 145 www opwglobal com Figure 9 7 Double Wall Tank with Well Monitoring ...
Page 90: ...Page 90 of 145 www opwglobal com Figure 13 7 ACR RIM Jumper Board ...
Page 142: ...Page 142 of 145 www opwglobal com Declaration of Conformity ...
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