Dover OPW SiteSentinel Integra 100, Installation Manual, Page: 89 / 101

Doc. # : M1800, Rev. 06
Page 89 of 101
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*NOTE : Maximum Wiring Length is the maximum length of cable to
be used to connect all sensors on an individual channel. This length
includes run of cable from I.S. Barrier to each sensor board in the
string.
Hydrocarbon Vapor Sensor
OPW P/N: 30-3222
Hydrocarbon Vapor Sensor
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
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.
Hydrocarbon Liquid/Water Sensor
Typical Uses: Monitoring Wells
Substances Detected: Hydrocarbon and Water
Available Lengths:
6’–20’ (1.8–6.1 m)
Operating Temperature: -4°F to 122°F (-20°C to 50°C)
Dimensions: 0.7
” x 6’–20’ (1.8 cm x 1.8–6.1 m)
Required Cable: 10' (3.1 m) gas-and-oil resistant cable
Maximum Wiring Length*: 1,000' (305 m)
Nominal resistance
(uncontaminated):
1K
–3K ohms per foot
Nominal resistance
(contaminated):
30K - 200K ohms
Multi-Drop Restrictions: One (1) per channel
Connections: Red = Power, Black = Signal
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